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Merge branch 'no-manifests'

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This commit is contained in:
Eelco Dolstra 2012-08-27 14:34:51 -04:00
parent a9e6752bbd 9e2fc6951c
commit 15e1b2c223
60 changed files with 2411 additions and 1323 deletions
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4
.gitignore vendored
View file

@ -35,8 +35,11 @@ Makefile.in
# /doc/manual/
/doc/manual/manual.html
/doc/manual/manual.xmli
/doc/manual/manual.pdf
/doc/manual/manual.is-valid
/doc/manual/*.1
/doc/manual/*.5
/doc/manual/*.8
/doc/manual/images
/doc/manual/version.txt
@ -60,6 +63,7 @@ Makefile.in
/scripts/GeneratePatches.pm
/scripts/download-using-manifests.pl
/scripts/copy-from-other-stores.pl
/scripts/download-from-binary-cache.pl
/scripts/find-runtime-roots.pl
/scripts/build-remote.pl
/scripts/nix-reduce-build

26
configure.ac
View file

@ -178,6 +178,7 @@ NEED_PROG(perl, perl)
NEED_PROG(sed, sed)
NEED_PROG(tar, tar)
NEED_PROG(bzip2, bzip2)
NEED_PROG(xz, xz)
AC_PATH_PROG(dot, dot)
AC_PATH_PROG(dblatex, dblatex)
AC_PATH_PROG(gzip, gzip)
@ -266,7 +267,7 @@ if test "$gc" = yes; then
fi
# Check for the required Perl dependencies (DBI and DBD::SQLite).
# Check for the required Perl dependencies (DBI, DBD::SQLite and WWW::Curl).
perlFlags="-I$perllibdir"
AC_ARG_WITH(dbi, AC_HELP_STRING([--with-dbi=PATH],
@ -277,6 +278,10 @@ AC_ARG_WITH(dbd-sqlite, AC_HELP_STRING([--with-dbd-sqlite=PATH],
[prefix of the Perl DBD::SQLite library]),
perlFlags="$perlFlags -I$withval")
AC_ARG_WITH(www-curl, AC_HELP_STRING([--with-www-curl=PATH],
[prefix of the Perl WWW::Curl library]),
perlFlags="$perlFlags -I$withval")
AC_MSG_CHECKING([whether DBD::SQLite works])
if ! $perl $perlFlags -e 'use DBI; use DBD::SQLite;' 2>&5; then
AC_MSG_RESULT(no)
@ -284,6 +289,13 @@ if ! $perl $perlFlags -e 'use DBI; use DBD::SQLite;' 2>&5; then
fi
AC_MSG_RESULT(yes)
AC_MSG_CHECKING([whether WWW::Curl works])
if ! $perl $perlFlags -e 'use WWW::Curl;' 2>&5; then
AC_MSG_RESULT(no)
AC_MSG_FAILURE([The Perl module WWW::Curl is missing.])
fi
AC_MSG_RESULT(yes)
AC_SUBST(perlFlags)
@ -327,6 +339,18 @@ eval dynlib_suffix=$shrext_cmds
AC_SUBST(dynlib_suffix)
# Do we have GNU tar?
AC_MSG_CHECKING([if you have GNU tar])
if $tar --version 2> /dev/null | grep -q GNU; then
AC_MSG_RESULT(yes)
tarFlags="--warning=no-timestamp"
else
AC_MSG_RESULT(no)
fi
AC_SUBST(tarFlags)
AM_CONFIG_HEADER([config.h])
AC_CONFIG_FILES([Makefile
src/Makefile

2
corepkgs/Makefile.am
View file

@ -1,6 +1,6 @@
all-local: config.nix
files = nar.nix buildenv.nix buildenv.pl unpack-channel.nix unpack-channel.sh derivation.nix fetchurl.nix \
files = nar.nix buildenv.nix buildenv.pl unpack-channel.nix derivation.nix fetchurl.nix \
imported-drv-to-derivation.nix
install-exec-local:

4
corepkgs/config.nix.in
View file

@ -6,8 +6,10 @@ in {
perl = "@perl@";
shell = "@shell@";
coreutils = "@coreutils@";
bzip2 = fromEnv "NIX_BZIP2" "@bzip2@";
bzip2 = "@bzip2@";
xz = "@xz@";
tar = "@tar@";
tarFlags = "@tarFlags@";
tr = "@tr@";
curl = "@curl@";
nixBinDir = fromEnv "NIX_BIN_DIR" "@bindir@";

21
corepkgs/nar.nix
View file

@ -6,28 +6,37 @@ let
''
export PATH=${nixBinDir}:${coreutils}
if [ $compressionType = "xz" ]; then
ext=xz
compressor="${xz} -9"
else
ext=bz2
compressor="${bzip2}"
fi
echo "packing ‘$storePath’..."
mkdir $out
dst=$out/tmp.nar.bz2
dst=$out/tmp.nar.$ext
set -o pipefail
nix-store --dump "$storePath" | ${bzip2} > $dst
nix-store --dump "$storePath" | $compressor > $dst
nix-hash --flat --type $hashAlgo --base32 $dst > $out/narbz2-hash
hash=$(nix-hash --flat --type $hashAlgo --base32 $dst)
echo -n $hash > $out/nar-compressed-hash
mv $out/tmp.nar.bz2 $out/$(cat $out/narbz2-hash).nar.bz2
mv $dst $out/$hash.nar.$ext
'';
in
{ storePath, hashAlgo }:
{ storePath, hashAlgo, compressionType }:
derivation {
name = "nar";
system = builtins.currentSystem;
builder = shell;
args = [ "-e" builder ];
inherit storePath hashAlgo;
inherit storePath hashAlgo compressionType;
# Don't build in a chroot because Nix's dependencies may not be there.
__noChroot = true;

23
corepkgs/unpack-channel.nix
View file

@ -1,12 +1,29 @@
with import <nix/config.nix>;
{ name, channelName, src }:
let
builder = builtins.toFile "unpack-channel.sh"
''
mkdir $out
cd $out
${bzip2} -d < $src | ${tar} xf - --warning=no-timestamp
mv * $out/$channelName
if [ -n "$binaryCacheURL" ]; then
mkdir $out/binary-caches
echo -n "$binaryCacheURL" > $out/binary-caches/$channelName
fi
'';
in
{ name, channelName, src, binaryCacheURL ? "" }:
derivation {
system = builtins.currentSystem;
builder = shell;
args = [ "-e" ./unpack-channel.sh ];
inherit name channelName src bzip2 tar tr;
args = [ "-e" builder ];
inherit name channelName src binaryCacheURL;
PATH = "${nixBinDir}:${coreutils}";
# No point in doing this remotely.

4
corepkgs/unpack-channel.sh
View file

@ -1,4 +0,0 @@
mkdir $out
cd $out
$bzip2 -d < $src | $tar xf -
mv * $out/$channelName

57
doc/manual/conf-file.xml
View file

@ -30,6 +30,9 @@ gc-keep-derivations = true # Idem
env-keep-derivations = false
</programlisting>
<para>You can override settings using the <option>--option</option>
flag, e.g. <literal>--option gc-keep-outputs false</literal>.</para>
<para>The following settings are currently available:
<variablelist>
@ -243,6 +246,16 @@ env-keep-derivations = false
</varlistentry>
<varlistentry><term><literal>build-fallback</literal></term>
<listitem><para>If set to <literal>true</literal>, Nix will fall
back to building from source if a binary substitute fails. This
is equivalent to the <option>--fallback</option> flag. The
default is <literal>false</literal>.</para></listitem>
</varlistentry>
<varlistentry xml:id="conf-build-chroot-dirs"><term><literal>build-chroot-dirs</literal></term>
<listitem><para>When builds are performed in a chroot environment,
@ -307,6 +320,50 @@ build-use-chroot = /dev /proc /bin</programlisting>
</varlistentry>
<varlistentry><term><literal>binary-caches</literal></term>
<listitem><para>A list of URLs of binary caches, separated by
whitespace. The default is empty.<!-- The default is
<literal>http://nixos.org/binary-cache</literal>. --></para></listitem>
</varlistentry>
<varlistentry><term><literal>binary-caches-files</literal></term>
<listitem><para>A list of names of files that will be read to
obtain additional binary cache URLs. The default is
<literal>/nix/var/nix/profiles/per-user/root/channels/binary-caches/*</literal>,
which ensures that Nix will use the binary caches corresponding to
the channels installed by root. Do not set this option to read
files created by untrusted users!</para></listitem>
</varlistentry>
<varlistentry><term><literal>trusted-binary-caches</literal></term>
<listitem><para>A list of URLs of binary caches, separated by
whitespace. These are not used by default, but can be enabled by
users of the Nix daemon by specifying <literal>--option
binary-caches <replaceable>urls</replaceable></literal> on the
command line. Daemon users are only allowed to pass a subset of
the URLs listed in <literal>binary-caches</literal> and
<literal>trusted-binary-caches</literal>.</para></listitem>
</varlistentry>
<varlistentry><term><literal>binary-caches-parallel-connections</literal></term>
<listitem><para>The maximum number of parallel HTTP connections
used by the binary cache substituter to get NAR info files. This
number should be high to minimise latency. It defaults to
150.</para></listitem>
</varlistentry>
<varlistentry><term><literal>system</literal></term>
<listitem><para>This option specifies the canonical Nix system

5
doc/manual/release-notes.xml
View file

@ -94,6 +94,11 @@
<citerefentry><refentrytitle>nix.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
</listitem>
<listitem>
<para>When using the Nix daemon, the <option>-s</option> flag in
<command>nix-env -qa</command> is now much faster.</para>
</listitem>
</itemizedlist>
</section>

1
nix.spec.in
View file

@ -16,6 +16,7 @@ BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
%endif
BuildRequires: perl(DBD::SQLite)
BuildRequires: perl(DBI)
BuildRequires: perl(WWW::Curl)
BuildRequires: perl(ExtUtils::ParseXS)
Requires: /usr/bin/perl
Requires: curl

2
perl/Makefile.am
View file

@ -1,4 +1,4 @@
PERL_MODULES = lib/Nix/Store.pm lib/Nix/Manifest.pm lib/Nix/GeneratePatches.pm lib/Nix/SSH.pm lib/Nix/CopyClosure.pm lib/Nix/Config.pm.in
PERL_MODULES = lib/Nix/Store.pm lib/Nix/Manifest.pm lib/Nix/GeneratePatches.pm lib/Nix/SSH.pm lib/Nix/CopyClosure.pm lib/Nix/Config.pm.in lib/Nix/Utils.pm
all: $(PERL_MODULES:.in=)

20
perl/lib/Nix/Config.pm.in
View file

@ -1,27 +1,39 @@
package Nix::Config;
$version = "@version@";
$binDir = $ENV{"NIX_BIN_DIR"} || "@bindir@";
$libexecDir = $ENV{"NIX_LIBEXEC_DIR"} || "@libexecdir@";
$stateDir = $ENV{"NIX_STATE_DIR"} || "@localstatedir@/nix";
$manifestDir = $ENV{"NIX_MANIFESTS_DIR"} || "@localstatedir@/nix/manifests";
$logDir = $ENV{"NIX_LOG_DIR"} || "@localstatedir@/log/nix";
$confDir = $ENV{"NIX_CONF_DIR"} || "@sysconfdir@/nix";
$storeDir = $ENV{"NIX_STORE_DIR"} || "@storedir@";
$bzip2 = $ENV{"NIX_BZIP2"} || "@bzip2@";
$bzip2 = "@bzip2@";
$xz = "@xz@";
$curl = "@curl@";
$useBindings = "@perlbindings@" eq "yes";
%config = ();
sub readConfig {
my %config;
my $config = "@sysconfdir@/nix/nix.conf";
if (defined $ENV{'_NIX_OPTIONS'}) {
foreach my $s (split '\n', $ENV{'_NIX_OPTIONS'}) {
my ($n, $v) = split '=', $s, 2;
$config{$n} = $v;
}
return;
}
my $config = "$confDir/nix.conf";
return unless -f $config;
open CONFIG, "<$config" or die "cannot open `$config'";
while (<CONFIG>) {
/^\s*([\w|-]+)\s*=\s*(.*)$/ or next;
$config{$1} = $2;
print "|$1| -> |$2|\n";
}
close CONFIG;
}

2
perl/lib/Nix/Store.xs
View file

@ -19,7 +19,7 @@ void doInit()
{
if (!store) {
try {
setDefaultsFromEnvironment();
settings.processEnvironment();
store = openStore();
} catch (Error & e) {
croak(e.what());

19
perl/lib/Nix/Utils.pm Normal file
View file

@ -0,0 +1,19 @@
package Nix::Utils;
$urlRE = "(?: [a-zA-Z][a-zA-Z0-9\+\-\.]*\:[a-zA-Z0-9\%\/\?\:\@\&\=\+\$\,\-\_\.\!\~\*]+ )";
sub checkURL {
my ($url) = @_;
die "invalid URL ‘$url’\n" unless $url =~ /^ $urlRE $ /x;
}
sub uniq {
my %seen;
my @res;
foreach my $name (@_) {
next if $seen{$name};
$seen{$name} = 1;
push @res, $name;
}
return @res;
}

7
release.nix
View file

@ -29,6 +29,7 @@ let
--with-xml-flags=--nonet
--with-dbi=${perlPackages.DBI}/${perl.libPrefix}
--with-dbd-sqlite=${perlPackages.DBDSQLite}/${perl.libPrefix}
--with-www-curl=${perlPackages.WWWCurl}/${perl.libPrefix}
'';
postUnpack = ''
@ -77,6 +78,7 @@ let
--disable-init-state
--with-dbi=${perlPackages.DBI}/${perl.libPrefix}
--with-dbd-sqlite=${perlPackages.DBDSQLite}/${perl.libPrefix}
--with-www-curl=${perlPackages.WWWCurl}/${perl.libPrefix}
--enable-gc
'';
@ -134,6 +136,7 @@ let
--disable-init-state
--with-dbi=${perlPackages.DBI}/${perl.libPrefix}
--with-dbd-sqlite=${perlPackages.DBDSQLite}/${perl.libPrefix}
--with-www-curl=${perlPackages.WWWCurl}/${perl.libPrefix}
'';
dontInstall = false;
@ -192,7 +195,7 @@ let
name = "nix-rpm-${diskImage.name}";
src = jobs.tarball;
diskImage = (diskImageFun vmTools.diskImageFuns)
{ extraPackages = [ "perl-DBD-SQLite" "perl-devel" "sqlite" "sqlite-devel" "bzip2-devel" "emacs" ]; };
{ extraPackages = [ "perl-DBD-SQLite" "perl-devel" "sqlite" "sqlite-devel" "bzip2-devel" "emacs" "perl-WWW-Curl" ]; };
memSize = 1024;
meta.schedulingPriority = prio;
postRPMInstall = "cd /tmp/rpmout/BUILD/nix-* && make installcheck";
@ -211,7 +214,7 @@ let
name = "nix-deb";
src = jobs.tarball;
diskImage = (diskImageFun vmTools.diskImageFuns)
{ extraPackages = [ "libdbd-sqlite3-perl" "libsqlite3-dev" "libbz2-dev" ]; };
{ extraPackages = [ "libdbd-sqlite3-perl" "libsqlite3-dev" "libbz2-dev" "libwww-curl-perl" ]; };
memSize = 1024;
meta.schedulingPriority = prio;
configureFlags = "--sysconfdir=/etc";

8
scripts/Makefile.am
View file

@ -7,17 +7,14 @@ noinst_SCRIPTS = nix-profile.sh \
find-runtime-roots.pl build-remote.pl nix-reduce-build \
copy-from-other-stores.pl nix-http-export.cgi
nix-pull nix-push: download-using-manifests.pl
install-exec-local: download-using-manifests.pl copy-from-other-stores.pl find-runtime-roots.pl
install-exec-local: download-using-manifests.pl copy-from-other-stores.pl download-from-binary-cache.pl find-runtime-roots.pl
$(INSTALL) -d $(DESTDIR)$(sysconfdir)/profile.d
$(INSTALL_DATA) nix-profile.sh $(DESTDIR)$(sysconfdir)/profile.d/nix.sh
$(INSTALL) -d $(DESTDIR)$(libexecdir)/nix
$(INSTALL_PROGRAM) find-runtime-roots.pl $(DESTDIR)$(libexecdir)/nix
$(INSTALL_PROGRAM) build-remote.pl $(DESTDIR)$(libexecdir)/nix
$(INSTALL) -d $(DESTDIR)$(libexecdir)/nix/substituters
$(INSTALL_PROGRAM) download-using-manifests.pl $(DESTDIR)$(libexecdir)/nix/substituters
$(INSTALL_PROGRAM) copy-from-other-stores.pl $(DESTDIR)$(libexecdir)/nix/substituters
$(INSTALL_PROGRAM) download-using-manifests.pl copy-from-other-stores.pl download-from-binary-cache.pl $(DESTDIR)$(libexecdir)/nix/substituters
$(INSTALL) -d $(DESTDIR)$(sysconfdir)/nix
include ../substitute.mk
@ -29,6 +26,7 @@ EXTRA_DIST = nix-collect-garbage.in \
nix-build.in \
download-using-manifests.pl.in \
copy-from-other-stores.pl.in \
download-from-binary-cache.pl.in \
nix-copy-closure.in \
find-runtime-roots.pl.in \
build-remote.pl.in \

24
scripts/copy-from-other-stores.pl.in
View file

@ -36,21 +36,20 @@ sub findStorePath {
if ($ARGV[0] eq "--query") {
while (<STDIN>) {
my $cmd = $_; chomp $cmd;
chomp;
my ($cmd, @args) = split " ", $_;
if ($cmd eq "have") {
my $storePath = <STDIN>; chomp $storePath;
print STDOUT (defined findStorePath($storePath) ? "1\n" : "0\n");
foreach my $storePath (@args) {
print "$storePath\n" if defined findStorePath($storePath);
}
print "\n";
}
elsif ($cmd eq "info") {
my $storePath = <STDIN>; chomp $storePath;
foreach my $storePath (@args) {
my ($store, $sourcePath) = findStorePath($storePath);
if (!defined $store) {
print "0\n";
next; # not an error
}
print "1\n";
next unless defined $store;
$ENV{"NIX_DB_DIR"} = "$store/var/nix/db";
@ -67,6 +66,7 @@ if ($ARGV[0] eq "--query") {
die "cannot query size of `$storePath'" if $? != 0;
chomp $narSize;
print "$storePath\n";
print "$deriver\n";
print scalar @references, "\n";
print "$_\n" foreach @references;
@ -74,6 +74,9 @@ if ($ARGV[0] eq "--query") {
print "$narSize\n";
}
print "\n";
}
else { die "unknown command `$cmd'"; }
}
}
@ -84,9 +87,10 @@ elsif ($ARGV[0] eq "--substitute") {
my $storePath = $ARGV[1];
my ($store, $sourcePath) = findStorePath $storePath;
die unless $store;
print "\n*** Copying `$storePath' from `$sourcePath'\n\n";
print STDERR "\n*** Copying `$storePath' from `$sourcePath'\n\n";
system("$binDir/nix-store --dump $sourcePath | $binDir/nix-store --restore $storePath") == 0
or die "cannot copy `$sourcePath' to `$storePath'";
print "\n"; # no hash to verify
}

537
scripts/download-from-binary-cache.pl.in Normal file
View file

@ -0,0 +1,537 @@
#! @perl@ -w @perlFlags@
use DBI;
use File::Basename;
use IO::Select;
use Nix::Config;
use Nix::Store;
use Nix::Utils;
use WWW::Curl::Easy;
use WWW::Curl::Multi;
use strict;
Nix::Config::readConfig;
my @caches;
my $gotCaches = 0;
my $maxParallelRequests = int($Nix::Config::config{"binary-caches-parallel-connections"} // 150);
$maxParallelRequests = 1 if $maxParallelRequests < 1;
my $debug = ($ENV{"NIX_DEBUG_SUBST"} // "") eq 1;
my ($dbh, $queryCache, $insertNAR, $queryNAR, $insertNARExistence, $queryNARExistence);
my $curlm = WWW::Curl::Multi->new;
my $activeRequests = 0;
my $curlIdCount = 1;
my %requests;
my %scheduled;
my $caBundle = $ENV{"CURL_CA_BUNDLE"} // $ENV{"OPENSSL_X509_CERT_FILE"};
sub addRequest {
my ($storePath, $url, $head) = @_;
my $curl = WWW::Curl::Easy->new;
my $curlId = $curlIdCount++;
$requests{$curlId} = { storePath => $storePath, url => $url, handle => $curl, content => "", type => $head ? "HEAD" : "GET" };
$curl->setopt(CURLOPT_PRIVATE, $curlId);
$curl->setopt(CURLOPT_URL, $url);
$curl->setopt(CURLOPT_WRITEDATA, \$requests{$curlId}->{content});
$curl->setopt(CURLOPT_FOLLOWLOCATION, 1);
$curl->setopt(CURLOPT_CAINFO, $caBundle) if defined $caBundle;
$curl->setopt(CURLOPT_USERAGENT, "Nix/$Nix::Config::version");
$curl->setopt(CURLOPT_NOBODY, 1) if $head;
$curl->setopt(CURLOPT_FAILONERROR, 1);
if ($activeRequests >= $maxParallelRequests) {
$scheduled{$curlId} = 1;
} else {
$curlm->add_handle($curl);
$activeRequests++;
}
return $requests{$curlId};
}
sub processRequests {
while ($activeRequests) {
my ($rfds, $wfds, $efds) = $curlm->fdset();
#print STDERR "R = @{$rfds}, W = @{$wfds}, E = @{$efds}\n";
# Sleep until we can read or write some data.
if (scalar @{$rfds} + scalar @{$wfds} + scalar @{$efds} > 0) {
IO::Select->select(IO::Select->new(@{$rfds}), IO::Select->new(@{$wfds}), IO::Select->new(@{$efds}), 0.1);
}
if ($curlm->perform() != $activeRequests) {
while (my ($id, $result) = $curlm->info_read) {
if ($id) {
my $request = $requests{$id} or die;
my $handle = $request->{handle};
$request->{result} = $result;
$request->{httpStatus} = $handle->getinfo(CURLINFO_RESPONSE_CODE);
print STDERR "$request->{type} on $request->{url} [$request->{result}, $request->{httpStatus}]\n" if $debug;
$activeRequests--;
delete $request->{handle};
if (scalar(keys %scheduled) > 0) {
my $id2 = (keys %scheduled)[0];
$curlm->add_handle($requests{$id2}->{handle});
$activeRequests++;
delete $scheduled{$id2};
}
}
}
}
}
}
sub initCache {
my $dbPath = "$Nix::Config::stateDir/binary-cache-v1.sqlite";
# Open/create the database.
$dbh = DBI->connect("dbi:SQLite:dbname=$dbPath", "", "")
or die "cannot open database `$dbPath'";
$dbh->{RaiseError} = 1;
$dbh->{PrintError} = 0;
$dbh->do("pragma synchronous = off"); # we can always reproduce the cache
$dbh->do("pragma journal_mode = truncate");
# Initialise the database schema, if necessary.
$dbh->do(<<EOF);
create table if not exists BinaryCaches (
id integer primary key autoincrement not null,
url text unique not null,
timestamp integer not null,
storeDir text not null,
wantMassQuery integer not null
);
EOF
$dbh->do(<<EOF);
create table if not exists NARs (
cache integer not null,
storePath text not null,
url text not null,
compression text not null,
fileHash text,
fileSize integer,
narHash text,
narSize integer,
refs text,
deriver text,
system text,
timestamp integer not null,
primary key (cache, storePath),
foreign key (cache) references BinaryCaches(id) on delete cascade
);
EOF
$dbh->do(<<EOF);
create table if not exists NARExistence (
cache integer not null,
storePath text not null,
exist integer not null,
timestamp integer not null,
primary key (cache, storePath),
foreign key (cache) references BinaryCaches(id) on delete cascade
);
EOF
$queryCache = $dbh->prepare("select id, storeDir, wantMassQuery from BinaryCaches where url = ?") or die;
$insertNAR = $dbh->prepare(
"insert or replace into NARs(cache, storePath, url, compression, fileHash, fileSize, narHash, " .
"narSize, refs, deriver, system, timestamp) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)") or die;
$queryNAR = $dbh->prepare("select * from NARs where cache = ? and storePath = ?") or die;
$insertNARExistence = $dbh->prepare(
"insert or replace into NARExistence(cache, storePath, exist, timestamp) values (?, ?, ?, ?)") or die;
$queryNARExistence = $dbh->prepare("select exist from NARExistence where cache = ? and storePath = ?") or die;
}
sub getAvailableCaches {
return if $gotCaches;
$gotCaches = 1;
sub strToList {
my ($s) = @_;
return map { s/\/+$//; $_ } split(/ /, $s);
}
my @urls = strToList ($Nix::Config::config{"binary-caches"} // "");
# // ($Nix::Config::storeDir eq "/nix/store" ? "http://nixos.org/binary-cache" : ""));
my $urlsFiles = $Nix::Config::config{"binary-cache-files"}
// "/nix/var/nix/profiles/per-user/root/channels/binary-caches/*";
foreach my $urlFile (glob $urlsFiles) {
next unless -f $urlFile;
open FILE, "<$urlFile" or die "cannot open ‘$urlFile’\n";
my $url = <FILE>; chomp $url;
close FILE;
push @urls, strToList($url);
}
# Allow Nix daemon users to override the binary caches to a subset
# of those listed in the config file. Note that ‘untrusted-*’
# denotes options passed by the client.
if (defined $Nix::Config::config{"untrusted-binary-caches"}) {
my @untrustedUrls = strToList $Nix::Config::config{"untrusted-binary-caches"};
my @trustedUrls = (@urls, strToList($Nix::Config::config{"trusted-binary-caches"} // ""));
@urls = ();
foreach my $url (@untrustedUrls) {
die "binary cache ‘$url’ is not trusted (please add it to ‘trusted-binary-caches’ in $Nix::Config::confDir/nix.conf)\n"
unless grep { $url eq $_ } @trustedUrls > 0;
push @urls, $url;
}
}
foreach my $url (Nix::Utils::uniq @urls) {
# FIXME: not atomic.
$queryCache->execute($url);
my $res = $queryCache->fetchrow_hashref();
if (defined $res) {
next if $res->{storeDir} ne $Nix::Config::storeDir;
push @caches, { id => $res->{id}, url => $url, wantMassQuery => $res->{wantMassQuery} };
next;
}
# Get the cache info file.
my $request = addRequest(undef, $url . "/nix-cache-info");
processRequests;
if ($request->{result} != 0) {
print STDERR "could not download ‘$request->{url}’ (" .
($request->{result} != 0 ? "Curl error $request->{result}" : "HTTP status $request->{httpStatus}") . ")\n";
next;
}
my $storeDir = "/nix/store";
my $wantMassQuery = 0;
foreach my $line (split "\n", $request->{content}) {
unless ($line =~ /^(.*): (.*)$/) {
print STDERR "bad cache info file ‘$request->{url}’\n";
return undef;
}
if ($1 eq "StoreDir") { $storeDir = $2; }
elsif ($1 eq "WantMassQuery") { $wantMassQuery = int($2); }
}
$dbh->do("insert into BinaryCaches(url, timestamp, storeDir, wantMassQuery) values (?, ?, ?, ?)",
{}, $url, time(), $storeDir, $wantMassQuery);
my $id = $dbh->last_insert_id("", "", "", "");
next if $storeDir ne $Nix::Config::storeDir;
push @caches, { id => $id, url => $url, wantMassQuery => $wantMassQuery };
}
}
sub processNARInfo {
my ($storePath, $cache, $request) = @_;
if ($request->{result} != 0) {
if ($request->{result} != 37 && $request->{httpStatus} != 404) {
print STDERR "could not download ‘$request->{url}’ (" .
($request->{result} != 0 ? "Curl error $request->{result}" : "HTTP status $request->{httpStatus}") . ")\n";
} else {
$insertNARExistence->execute($cache->{id}, basename($storePath), 0, time())
unless $request->{url} =~ /^file:/;
}
return undef;
}
my ($storePath2, $url, $fileHash, $fileSize, $narHash, $narSize, $deriver, $system);
my $compression = "bzip2";
my @refs;
foreach my $line (split "\n", $request->{content}) {
unless ($line =~ /^(.*): (.*)$/) {
print STDERR "bad NAR info file ‘$request->{url}’\n";
return undef;
}
if ($1 eq "StorePath") { $storePath2 = $2; }
elsif ($1 eq "URL") { $url = $2; }
elsif ($1 eq "Compression") { $compression = $2; }
elsif ($1 eq "FileHash") { $fileHash = $2; }
elsif ($1 eq "FileSize") { $fileSize = int($2); }
elsif ($1 eq "NarHash") { $narHash = $2; }
elsif ($1 eq "NarSize") { $narSize = int($2); }
elsif ($1 eq "References") { @refs = split / /, $2; }
elsif ($1 eq "Deriver") { $deriver = $2; }
elsif ($1 eq "System") { $system = $2; }
}
return undef if $storePath ne $storePath2;
if ($storePath ne $storePath2 || !defined $url || !defined $narHash) {
print STDERR "bad NAR info file ‘$request->{url}’\n";
return undef;
}
# Cache the result.
$insertNAR->execute(
$cache->{id}, basename($storePath), $url, $compression, $fileHash, $fileSize,
$narHash, $narSize, join(" ", @refs), $deriver, $system, time())
unless $request->{url} =~ /^file:/;
return
{ url => $url
, compression => $compression
, fileHash => $fileHash
, fileSize => $fileSize
, narHash => $narHash
, narSize => $narSize
, refs => [ @refs ]
, deriver => $deriver
, system => $system
};
}
sub getCachedInfoFrom {
my ($storePath, $cache) = @_;
$queryNAR->execute($cache->{id}, basename($storePath));
my $res = $queryNAR->fetchrow_hashref();
return undef unless defined $res;
return
{ url => $res->{url}
, compression => $res->{compression}
, fileHash => $res->{fileHash}
, fileSize => $res->{fileSize}
, narHash => $res->{narHash}
, narSize => $res->{narSize}
, refs => [ split " ", $res->{refs} ]
, deriver => $res->{deriver}
} if defined $res;
}
sub negativeHit {
my ($storePath, $cache) = @_;
$queryNARExistence->execute($cache->{id}, basename($storePath));
my $res = $queryNARExistence->fetchrow_hashref();
return defined $res && $res->{exist} == 0;
}
sub positiveHit {
my ($storePath, $cache) = @_;
return 1 if defined getCachedInfoFrom($storePath, $cache);
$queryNARExistence->execute($cache->{id}, basename($storePath));
my $res = $queryNARExistence->fetchrow_hashref();
return defined $res && $res->{exist} == 1;
}
sub printInfo {
my ($storePath, $info) = @_;
print "$storePath\n";
print $info->{deriver} ? "$Nix::Config::storeDir/$info->{deriver}" : "", "\n";
print scalar @{$info->{refs}}, "\n";
print "$Nix::Config::storeDir/$_\n" foreach @{$info->{refs}};
print $info->{fileSize} || 0, "\n";
print $info->{narSize} || 0, "\n";
}
sub infoUrl {
my ($binaryCacheUrl, $storePath) = @_;
my $pathHash = substr(basename($storePath), 0, 32);
my $infoUrl = "$binaryCacheUrl/$pathHash.narinfo";
}
sub printInfoParallel {
my @paths = @_;
# First print all paths for which we have cached info.
my @left;
foreach my $storePath (@paths) {
my $found = 0;
foreach my $cache (@caches) {
my $info = getCachedInfoFrom($storePath, $cache);
if (defined $info) {
printInfo($storePath, $info);
$found = 1;
last;
}
}
push @left, $storePath if !$found;
}
return if scalar @left == 0;
foreach my $cache (@caches) {
my @left2;
%requests = ();
foreach my $storePath (@left) {
if (negativeHit($storePath, $cache)) {
push @left2, $storePath;
next;
}
addRequest($storePath, infoUrl($cache->{url}, $storePath));
}
processRequests;
foreach my $request (values %requests) {
my $info = processNARInfo($request->{storePath}, $cache, $request);
if (defined $info) {
printInfo($request->{storePath}, $info);
} else {
push @left2, $request->{storePath};
}
}
@left = @left2;
}
}
sub printSubstitutablePaths {
my @paths = @_;
# First look for paths that have cached info.
my @left;
foreach my $storePath (@paths) {
my $found = 0;
foreach my $cache (@caches) {
next unless $cache->{wantMassQuery};
if (positiveHit($storePath, $cache)) {
print "$storePath\n";
$found = 1;
last;
}
}
push @left, $storePath if !$found;
}
return if scalar @left == 0;
# For remaining paths, do HEAD requests.
foreach my $cache (@caches) {
next unless $cache->{wantMassQuery};
my @left2;
%requests = ();
foreach my $storePath (@left) {
if (negativeHit($storePath, $cache)) {
push @left2, $storePath;
next;
}
addRequest($storePath, infoUrl($cache->{url}, $storePath), 1);
}
processRequests;
foreach my $request (values %requests) {
if ($request->{result} != 0) {
if ($request->{result} != 37 && $request->{httpStatus} != 404) {
print STDERR "could not check ‘$request->{url}’ (" .
($request->{result} != 0 ? "Curl error $request->{result}" : "HTTP status $request->{httpStatus}") . ")\n";
} else {
$insertNARExistence->execute($cache->{id}, basename($request->{storePath}), 0, time())
unless $request->{url} =~ /^file:/;
}
push @left2, $request->{storePath};
} else {
$insertNARExistence->execute($cache->{id}, basename($request->{storePath}), 1, time())
unless $request->{url} =~ /^file:/;
print "$request->{storePath}\n";
}
}
@left = @left2;
}
}
sub downloadBinary {
my ($storePath) = @_;
foreach my $cache (@caches) {
my $info = getCachedInfoFrom($storePath, $cache);
unless (defined $info) {
next if negativeHit($storePath, $cache);
my $request = addRequest($storePath, infoUrl($cache->{url}, $storePath));
processRequests;
$info = processNARInfo($storePath, $cache, $request);
}
next unless defined $info;
my $decompressor;
if ($info->{compression} eq "bzip2") { $decompressor = "$Nix::Config::bzip2 -d"; }
elsif ($info->{compression} eq "xz") { $decompressor = "$Nix::Config::xz -d"; }
else {
print STDERR "unknown compression method ‘$info->{compression}’\n";
next;
}
my $url = "$cache->{url}/$info->{url}"; # FIXME: handle non-relative URLs
print STDERR "\n*** Downloading ‘$url’ into ‘$storePath’...\n";
Nix::Utils::checkURL $url;
if (system("$Nix::Config::curl --fail --location --insecure '$url' | $decompressor | $Nix::Config::binDir/nix-store --restore $storePath") != 0) {
die "download of `$info->{url}' failed" . ($! ? ": $!" : "") . "\n" unless $? == 0;
next;
}
# Tell Nix about the expected hash so it can verify it.
print "$info->{narHash}\n";
print STDERR "\n";
return;
}
print STDERR "could not download ‘$storePath’ from any binary cache\n";
}
initCache();
if ($ARGV[0] eq "--query") {
while (<STDIN>) {
getAvailableCaches;
chomp;
my ($cmd, @args) = split " ", $_;
if ($cmd eq "have") {
printSubstitutablePaths(@args);
print "\n";
}
elsif ($cmd eq "info") {
printInfoParallel(@args);
print "\n";
}
else { die "unknown command `$cmd'"; }
flush STDOUT;
}
}
elsif ($ARGV[0] eq "--substitute") {
my $storePath = $ARGV[1] or die;
getAvailableCaches;
downloadBinary($storePath);
}
else {
die;
}

84
scripts/download-using-manifests.pl.in
View file

@ -4,6 +4,7 @@ use strict;
use Nix::Config;
use Nix::Manifest;
use Nix::Store;
use Nix::Utils;
use POSIX qw(strftime);
use File::Temp qw(tempdir);
@ -15,6 +16,9 @@ my $logFile = "$Nix::Config::logDir/downloads";
# estimating the expected download size.
my $fast = 1;
# ‘--insecure’ is fine because Nix verifies the hash of the result.
my $curl = "$Nix::Config::curl --fail --location --insecure";
# Open the manifest cache and update it if necessary.
my $dbh = updateManifestDB();
@ -173,32 +177,27 @@ sub computeSmallestDownload {
if ($ARGV[0] eq "--query") {
while (<STDIN>) {
my $cmd = $_; chomp $cmd;
chomp;
my ($cmd, @args) = split " ", $_;
if ($cmd eq "have") {
my $storePath = <STDIN>; chomp $storePath;
print STDOUT (
scalar @{$dbh->selectcol_arrayref("select 1 from NARs where storePath = ?", {}, $storePath)} > 0
? "1\n" : "0\n");
foreach my $storePath (@args) {
print "$storePath\n" if scalar @{$dbh->selectcol_arrayref("select 1 from NARs where storePath = ?", {}, $storePath)} > 0;
}
print "\n";
}
elsif ($cmd eq "info") {
my $storePath = <STDIN>; chomp $storePath;
foreach my $storePath (@args) {
my $infos = $dbh->selectall_arrayref(
"select * from NARs where storePath = ?",
{ Slice => {} }, $storePath);
my $info;
if (scalar @{$infos} > 0) {
$info = @{$infos}[0];
}
else {
print "0\n";
next; # not an error
}
next unless scalar @{$infos} > 0;
my $info = @{$infos}[0];
print "1\n";
print "$storePath\n";
print "$info->{deriver}\n";
my @references = split " ", $info->{refs};
print scalar @references, "\n";
@ -225,6 +224,9 @@ if ($ARGV[0] eq "--query") {
print "$narSize\n";
}
print "\n";
}
else { die "unknown command `$cmd'"; }
}
@ -273,16 +275,6 @@ $dbh->disconnect;
my $curStep = 1;
my $maxStep = scalar @path;
sub downloadFile {
my $url = shift;
$ENV{"PRINT_PATH"} = 1;
$ENV{"QUIET"} = 1;
my ($hash, $path) = `$Nix::Config::binDir/nix-prefetch-url '$url'`;
die "download of `$url' failed" . ($! ? ": $!" : "") . "\n" unless $? == 0;
chomp $path;
return $path;
}
my $finalNarHash;
while (scalar @path > 0) {
@ -314,13 +306,16 @@ while (scalar @path > 0) {
# Download the patch.
print STDERR " downloading patch...\n";
my $patchPath = downloadFile "$patch->{url}";
my $patchPath = "$tmpDir/patch";
Nix::Utils::checkURL $patch->{url};
system("$curl '$patch->{url}' -o $patchPath") == 0
or die "cannot download patch `$patch->{url}'\n";
# Apply the patch to the NAR archive produced in step 1 (for
# the already present path) or a later step (for patch sequences).
print STDERR " applying patch...\n";
system("$Nix::Config::libexecDir/bspatch $tmpNar $tmpNar2 $patchPath") == 0
or die "cannot apply patch `$patchPath' to $tmpNar";
or die "cannot apply patch `$patchPath' to $tmpNar\n";
if ($curStep < $maxStep) {
# The archive will be used as the base of the next patch.
@ -330,7 +325,7 @@ while (scalar @path > 0) {
# into the target path.
print STDERR " unpacking patched archive...\n";
system("$Nix::Config::binDir/nix-store --restore $v < $tmpNar2") == 0
or die "cannot unpack $tmpNar2 into `$v'";
or die "cannot unpack $tmpNar2 into `$v'\n";
}
$finalNarHash = $patch->{narHash};
@ -343,19 +338,15 @@ while (scalar @path > 0) {
my $size = $narFile->{size} || -1;
print LOGFILE "$$ narfile $narFile->{url} $size $v\n";
# Download the archive.
print STDERR " downloading archive...\n";
my $narFilePath = downloadFile "$narFile->{url}";
Nix::Utils::checkURL $narFile->{url};
if ($curStep < $maxStep) {
# The archive will be used a base to a patch.
system("$Nix::Config::bzip2 -d < '$narFilePath' > $tmpNar") == 0
or die "cannot unpack `$narFilePath' into `$v'";
system("$curl '$narFile->{url}' | $Nix::Config::bzip2 -d > $tmpNar") == 0
or die "cannot download and unpack `$narFile->{url}' into `$v'\n";
} else {
# Unpack the archive into the target path.
print STDERR " unpacking archive...\n";
system("$Nix::Config::bzip2 -d < '$narFilePath' | $Nix::Config::binDir/nix-store --restore '$v'") == 0
or die "cannot unpack `$narFilePath' into `$v'";
system("$curl '$narFile->{url}' | $Nix::Config::bzip2 -d | $Nix::Config::binDir/nix-store --restore '$v'") == 0
or die "cannot download and unpack `$narFile->{url}' into `$v'\n";
}
$finalNarHash = $narFile->{narHash};
@ -365,21 +356,10 @@ while (scalar @path > 0) {
}
# Make sure that the hash declared in the manifest matches what we
# downloaded and unpacked.
if (defined $finalNarHash) {
my ($hashAlgo, $hash) = parseHash $finalNarHash;
# The hash in the manifest can be either in base-16 or base-32.
# Handle both.
my $hash2 = hashPath($hashAlgo, $hashAlgo eq "sha256" && length($hash) != 64, $targetPath);
die "hash mismatch in downloaded path $targetPath; expected $hash, got $hash2\n"
if $hash ne $hash2;
} else {
die "cannot check integrity of the downloaded path since its hash is not known\n";
}
# Tell Nix about the expected hash so it can verify it.
die "cannot check integrity of the downloaded path since its hash is not known\n"
unless defined $finalNarHash;
print "$finalNarHash\n";
print STDERR "\n";

5
scripts/nix-build.in
View file

@ -58,6 +58,11 @@ EOF
# '` hack
}
elsif ($arg eq "--version") {
print "nix-build (Nix) $Nix::Config::version\n";
exit 0;
}
elsif ($arg eq "--add-drv-link") {
$drvLink = "./derivation";
}

24
scripts/nix-channel.in
View file

@ -80,12 +80,6 @@ sub update {
readChannels;
# Create the manifests directory if it doesn't exist.
mkdir $manifestDir, 0755 unless -e $manifestDir;
# Do we have write permission to the manifests directory?
die "$0: you do not have write permission to `$manifestDir'!\n" unless -W $manifestDir;
# Download each channel.
my $exprs = "";
foreach my $name (keys %channels) {
@ -102,10 +96,19 @@ sub update {
$headers =~ s/\r//g;
$url = $1 if $headers =~ /^Location:\s*(.*)\s*$/m;
# Pull the channel manifest.
# Check if the channel advertises a binary cache.
my $binaryCacheURL = `$Nix::Config::curl --silent '$url'/binary-cache-url`;
my $extraAttrs = "";
if ($? == 0 && $binaryCacheURL ne "") {
$extraAttrs .= "binaryCacheURL = \"$binaryCacheURL\"; ";
} else {
# No binary cache, so pull the channel manifest.
mkdir $manifestDir, 0755 unless -e $manifestDir;
die "$0: you do not have write permission to `$manifestDir'!\n" unless -W $manifestDir;
$ENV{'NIX_ORIG_URL'} = $origUrl;
system("$Nix::Config::binDir/nix-pull", "--skip-wrong-store", "$url/MANIFEST") == 0
or die "cannot pull manifest from `$url'\n";
}
# Download the channel tarball.
my $fullURL = "$url/nixexprs.tar.bz2";
@ -120,7 +123,7 @@ sub update {
my $cname = $name;
$cname .= $1 if basename($url) =~ /(-\d.*)$/;
$exprs .= "'f: f { name = \"$cname\"; channelName = \"$name\"; src = builtins.storePath \"$path\"; }' ";
$exprs .= "'f: f { name = \"$cname\"; channelName = \"$name\"; src = builtins.storePath \"$path\"; $extraAttrs }' ";
}
# Unpack the channel tarballs into the Nix store and install them
@ -194,6 +197,11 @@ while (scalar @ARGV) {
usageError;
}
elsif ($arg eq "--version") {
print "nix-channel (Nix) $Nix::Config::version\n";
exit 0;
}
else {
die "unknown argument `$arg'; try `--help'";
}

23
scripts/nix-install-package.in
View file

@ -3,6 +3,7 @@
use strict;
use File::Temp qw(tempdir);
use Nix::Config;
use Nix::Utils;
sub usageError {
@ -72,7 +73,7 @@ my $tmpDir = tempdir("nix-install-package.XXXXXX", CLEANUP => 1, TMPDIR => 1)
sub barf {
my $msg = shift;
print "$msg\n";
print "\nInstallation failed: $msg\n";
<STDIN> if $interactive;
exit 1;
}
@ -92,7 +93,6 @@ open PKGFILE, "<$pkgFile" or barf "cannot open `$pkgFile': $!";
my $contents = <PKGFILE>;
close PKGFILE;
my $urlRE = "(?: [a-zA-Z][a-zA-Z0-9\+\-\.]*\:[a-zA-Z0-9\%\/\?\:\@\&\=\+\$\,\-\_\.\!\~\*\']+ )";
my $nameRE = "(?: [A-Za-z0-9\+\-\.\_\?\=]+ )"; # see checkStoreName()
my $systemRE = "(?: [A-Za-z0-9\+\-\_]+ )";
my $pathRE = "(?: \/ [\/A-Za-z0-9\+\-\.\_\?\=]* )";
@ -101,7 +101,7 @@ my $pathRE = "(?: \/ [\/A-Za-z0-9\+\-\.\_\?\=]* )";
# store path. We'll let nix-env do that.
$contents =~
/ ^ \s* (\S+) \s+ ($urlRE) \s+ ($nameRE) \s+ ($systemRE) \s+ ($pathRE) \s+ ($pathRE) /x
/ ^ \s* (\S+) \s+ ($Nix::Utils::urlRE) \s+ ($nameRE) \s+ ($systemRE) \s+ ($pathRE) \s+ ($pathRE) ( \s+ ($Nix::Utils::urlRE) )? /x
or barf "invalid package contents";
my $version = $1;
my $manifestURL = $2;
@ -109,6 +109,7 @@ my $drvName = $3;
my $system = $4;
my $drvPath = $5;
my $outPath = $6;
my $binaryCacheURL = $8;
barf "invalid package version `$version'" unless $version eq "NIXPKG1";
@ -122,18 +123,26 @@ if ($interactive) {
}
if (defined $binaryCacheURL) {
push @extraNixEnvArgs, "--option", "binary-caches", $binaryCacheURL;
} else {
# Store the manifest in the temporary directory so that we don't
# pollute /nix/var/nix/manifests. This also requires that we don't
# use the Nix daemon (because otherwise download-using-manifests won't
# see our NIX_MANIFESTS_DIRS environment variable).
# pollute /nix/var/nix/manifests. This also requires that we
# don't use the Nix daemon (because otherwise
# download-using-manifests won't see our NIX_MANIFESTS_DIRS
# environment variable).
$ENV{NIX_MANIFESTS_DIR} = $tmpDir;
$ENV{NIX_REMOTE} = "";
print "\nPulling manifests...\n";
system("$Nix::Config::binDir/nix-pull", $manifestURL) == 0
or barf "nix-pull failed: $?";
}
print "\nInstalling package...\n";
system("$Nix::Config::binDir/nix-env", "--install", $outPath, "--force-name", $drvName, @extraNixEnvArgs) == 0

314
scripts/nix-push.in
View file

@ -1,77 +1,77 @@
#! @perl@ -w @perlFlags@
use strict;
use File::Basename;
use File::Temp qw(tempdir);
use File::Path qw(mkpath);
use File::stat;
use File::Copy;
use Nix::Config;
use Nix::Store;
use Nix::Manifest;
my $hashAlgo = "sha256";
my $tmpDir = tempdir("nix-push.XXXXXX", CLEANUP => 1, TMPDIR => 1)
or die "cannot create a temporary directory";
my $nixExpr = "$tmpDir/create-nars.nix";
my $manifest = "$tmpDir/MANIFEST";
my $curl = "$Nix::Config::curl --fail --silent";
my $extraCurlFlags = ${ENV{'CURL_FLAGS'}};
$curl = "$curl $extraCurlFlags" if defined $extraCurlFlags;
# Parse the command line.
my $localCopy;
my $localArchivesDir;
my $localManifestFile;
my $targetArchivesUrl;
my $archivesPutURL;
my $archivesGetURL;
my $manifestPutURL;
my $compressionType = "xz";
my $force = 0;
my $destDir;
my $writeManifest = 0;
my $archivesURL;
my @roots;
sub showSyntax {
print STDERR <<EOF
Usage: nix-push --copy ARCHIVES_DIR MANIFEST_FILE PATHS...
or: nix-push ARCHIVES_PUT_URL ARCHIVES_GET_URL MANIFEST_PUT_URL PATHS...
Usage: nix-push --dest DIR [--manifest] [--url-prefix URL] PATHS...
`nix-push' copies or uploads the closure of PATHS to the given
destination.
`nix-push' packs the closure of PATHS into a set of NAR files stored
in DIR. Optionally generate a manifest.
EOF
; # `
exit 1;
}
showSyntax if scalar @ARGV < 1;
for (my $n = 0; $n < scalar @ARGV; $n++) {
my $arg = $ARGV[$n];
if ($ARGV[0] eq "--copy") {
showSyntax if scalar @ARGV < 3;
$localCopy = 1;
shift @ARGV;
$localArchivesDir = shift @ARGV;
$localManifestFile = shift @ARGV;
if ($ARGV[0] eq "--target") {
shift @ARGV;
$targetArchivesUrl = shift @ARGV;
}
else {
$targetArchivesUrl = "file://$localArchivesDir";
if ($arg eq "--help") {
showSyntax;
} elsif ($arg eq "--bzip2") {
$compressionType = "bzip2";
} elsif ($arg eq "--force") {
$force = 1;
} elsif ($arg eq "--dest") {
$n++;
die "$0: `$arg' requires an argument\n" unless $n < scalar @ARGV;
$destDir = $ARGV[$n];
mkpath($destDir, 0, 0755);
} elsif ($arg eq "--manifest") {
$writeManifest = 1;
} elsif ($arg eq "--url-prefix") {
$n++;
die "$0: `$arg' requires an argument\n" unless $n < scalar @ARGV;
$archivesURL = $ARGV[$n];
} elsif (substr($arg, 0, 1) eq "-") {
showSyntax;
} else {
push @roots, $arg;
}
}
else {
showSyntax if scalar @ARGV < 3;
$localCopy = 0;
$archivesPutURL = shift @ARGV;
$archivesGetURL = shift @ARGV;
$manifestPutURL = shift @ARGV;
}
showSyntax if !defined $destDir;
$archivesURL = "file://$destDir" unless defined $archivesURL;
# From the given store paths, determine the set of requisite store
# paths, i.e, the paths required to realise them.
my %storePaths;
foreach my $path (@ARGV) {
foreach my $path (@roots) {
die unless $path =~ /^\//;
# Get all paths referenced by the normalisation of the given
@ -92,8 +92,8 @@ foreach my $path (@ARGV) {
my @storePaths = keys %storePaths;
# For each path, create a Nix expression that turns the path into
# a Nix archive.
# Create a list of Nix derivations that turn each path into a Nix
# archive.
open NIX, ">$nixExpr";
print NIX "[";
@ -103,7 +103,7 @@ foreach my $storePath (@storePaths) {
# Construct a Nix expression that creates a Nix archive.
my $nixexpr =
"(import <nix/nar.nix> " .
"{ storePath = builtins.storePath \"$storePath\"; hashAlgo = \"$hashAlgo\"; }) ";
"{ storePath = builtins.storePath \"$storePath\"; hashAlgo = \"sha256\"; compressionType = \"$compressionType\"; }) ";
print NIX $nixexpr;
}
@ -112,172 +112,132 @@ print NIX "]";
close NIX;
# Instantiate store derivations from the Nix expression.
my @storeExprs;
print STDERR "instantiating store derivations...\n";
my $pid = open(READ, "$Nix::Config::binDir/nix-instantiate $nixExpr|")
or die "cannot run nix-instantiate";
# Build the Nix expression.
print STDERR "building compressed archives...\n";
my @narPaths;
my $pid = open(READ, "$Nix::Config::binDir/nix-build $nixExpr -o $tmpDir/result |")
or die "cannot run nix-build";
while (<READ>) {
chomp;
die unless /^\//;
push @storeExprs, $_;
push @narPaths, $_;
}
close READ or die "nix-instantiate failed: $?";
close READ or die "nix-build failed: $?";
# Build the derivations.
print STDERR "creating archives...\n";
my @narPaths;
my @tmp = @storeExprs;
while (scalar @tmp > 0) {
my $n = scalar @tmp;
if ($n > 256) { $n = 256 };
my @tmp2 = @tmp[0..$n - 1];
@tmp = @tmp[$n..scalar @tmp - 1];
my $pid = open(READ, "$Nix::Config::binDir/nix-store --realise @tmp2|")
or die "cannot run nix-store";
while (<READ>) {
chomp;
die unless (/^\//);
push @narPaths, "$_";
}
close READ or die "nix-store failed: $?";
# Write the cache info file.
my $cacheInfoFile = "$destDir/nix-cache-info";
if (! -e $cacheInfoFile) {
open FILE, ">$cacheInfoFile" or die "cannot create $cacheInfoFile: $!";
print FILE "StoreDir: $Nix::Config::storeDir\n";
print FILE "WantMassQuery: 0\n"; # by default, don't hit this cache for "nix-env -qas"
close FILE;
}
# Create the manifest.
print STDERR "creating manifest...\n";
# Copy the archives and the corresponding NAR info files.
print STDERR "copying archives...\n";
my $totalNarSize = 0;
my $totalCompressedSize = 0;
my %narFiles;
my %patches;
my @narArchives;
for (my $n = 0; $n < scalar @storePaths; $n++) {
my $storePath = $storePaths[$n];
my $narDir = $narPaths[$n];
my $baseName = basename $storePath;
$storePath =~ /\/([^\/]*)$/;
my $basename = $1;
defined $basename or die;
open HASH, "$narDir/narbz2-hash" or die "cannot open narbz2-hash";
my $narbz2Hash = <HASH>;
chomp $narbz2Hash;
$narbz2Hash =~ /^[0-9a-z]+$/ or die "invalid hash";
close HASH;
my $narName = "$narbz2Hash.nar.bz2";
my $narFile = "$narDir/$narName";
(-f $narFile) or die "narfile for $storePath not found";
push @narArchives, $narFile;
my $narbz2Size = stat($narFile)->size;
my $references = `$Nix::Config::binDir/nix-store --query --references '$storePath'`;
die "cannot query references for `$storePath'" if $? != 0;
$references = join(" ", split(" ", $references));
my $deriver = `$Nix::Config::binDir/nix-store --query --deriver '$storePath'`;
die "cannot query deriver for `$storePath'" if $? != 0;
chomp $deriver;
$deriver = "" if $deriver eq "unknown-deriver";
my $narHash = `$Nix::Config::binDir/nix-store --query --hash '$storePath'`;
die "cannot query hash for `$storePath'" if $? != 0;
chomp $narHash;
# Get info about the store path.
my ($deriver, $narHash, $time, $narSize, $refs) = queryPathInfo($storePath, 1);
# In some exceptional cases (such as VM tests that use the Nix
# store of the host), the database doesn't contain the hash. So
# compute it.
if ($narHash =~ /^sha256:0*$/) {
$narHash = `$Nix::Config::binDir/nix-hash --type sha256 --base32 '$storePath'`;
die "cannot hash `$storePath'" if $? != 0;
my $nar = "$tmpDir/nar";
system("$Nix::Config::binDir/nix-store --dump $storePath > $nar") == 0
or die "cannot dump $storePath\n";
$narHash = `$Nix::Config::binDir/nix-hash --type sha256 --base32 --flat $nar`;
die "cannot hash `$nar'" if $? != 0;
chomp $narHash;
$narHash = "sha256:$narHash";
$narSize = stat("$nar")->size;
unlink $nar or die;
}
my $narSize = `$Nix::Config::binDir/nix-store --query --size '$storePath'`;
die "cannot query size for `$storePath'" if $? != 0;
chomp $narSize;
$totalNarSize += $narSize;
my $url;
if ($localCopy) {
$url = "$targetArchivesUrl/$narName";
} else {
$url = "$archivesGetURL/$narName";
# Get info about the compressed NAR.
open HASH, "$narDir/nar-compressed-hash" or die "cannot open nar-compressed-hash";
my $compressedHash = <HASH>;
chomp $compressedHash;
$compressedHash =~ /^[0-9a-z]+$/ or die "invalid hash";
close HASH;
my $narName = "$compressedHash.nar." . ($compressionType eq "xz" ? "xz" : "bz2");
my $narFile = "$narDir/$narName";
(-f $narFile) or die "NAR file for $storePath not found";
my $compressedSize = stat($narFile)->size;
$totalCompressedSize += $compressedSize;
printf STDERR "%s [%.2f MiB, %.1f%%]\n", $storePath,
$compressedSize / (1024 * 1024), $compressedSize / $narSize * 100;
# Copy the compressed NAR.
my $dst = "$destDir/$narName";
if (! -f $dst) {
my $tmp = "$destDir/.tmp.$$.$narName";
copy($narFile, $tmp) or die "cannot copy $narFile to $tmp: $!\n";
rename($tmp, $dst) or die "cannot rename $tmp to $dst: $!\n";
}
# Write the info file.
my $info;
$info .= "StorePath: $storePath\n";
$info .= "URL: $narName\n";
$info .= "Compression: $compressionType\n";
$info .= "FileHash: sha256:$compressedHash\n";
$info .= "FileSize: $compressedSize\n";
$info .= "NarHash: $narHash\n";
$info .= "NarSize: $narSize\n";
$info .= "References: " . join(" ", map { basename $_ } @{$refs}) . "\n";
if (defined $deriver) {
$info .= "Deriver: " . basename $deriver . "\n";
if (isValidPath($deriver)) {
my $drv = derivationFromPath($deriver);
$info .= "System: $drv->{platform}\n";
}
}
my $pathHash = substr(basename($storePath), 0, 32);
$dst = "$destDir/$pathHash.narinfo";
if ($force || ! -f $dst) {
my $tmp = "$destDir/.tmp.$$.$pathHash.narinfo";
open INFO, ">$tmp" or die;
print INFO "$info" or die;
close INFO or die;
rename($tmp, $dst) or die "cannot rename $tmp to $dst: $!\n";
}
$narFiles{$storePath} = [
{ url => $url
, hash => "$hashAlgo:$narbz2Hash"
, size => $narbz2Size
{ url => "$archivesURL/$narName"
, hash => "sha256:$compressedHash"
, size => $compressedSize
, narHash => "$narHash"
, narSize => $narSize
, references => $references
, references => join(" ", @{$refs})
, deriver => $deriver
}
];
] if $writeManifest;
}
writeManifest $manifest, \%narFiles, \%patches;
printf STDERR "total compressed size %.2f MiB, %.1f%%\n",
$totalCompressedSize / (1024 * 1024), $totalCompressedSize / $totalNarSize * 100;
sub copyFile {
my $src = shift;
my $dst = shift;
my $tmp = "$dst.tmp.$$";
system("@coreutils@/cp", $src, $tmp) == 0 or die "cannot copy file";
rename($tmp, $dst) or die "cannot rename file: $!";
}
# Upload/copy the archives.
print STDERR "uploading/copying archives...\n";
sub archiveExists {
my $name = shift;
print STDERR " HEAD on $archivesGetURL/$name\n";
return system("$curl --head $archivesGetURL/$name > /dev/null") == 0;
}
foreach my $narArchive (@narArchives) {
$narArchive =~ /\/([^\/]*)$/;
my $basename = $1;
if ($localCopy) {
# Since nix-push creates $dst atomically, if it exists we
# don't have to copy again.
my $dst = "$localArchivesDir/$basename";
if (! -f "$localArchivesDir/$basename") {
print STDERR " $narArchive\n";
copyFile $narArchive, $dst;
}
}
else {
if (!archiveExists("$basename")) {
print STDERR " $narArchive\n";
system("$curl --show-error --upload-file " .
"'$narArchive' '$archivesPutURL/$basename' > /dev/null") == 0 or
die "curl failed on $narArchive: $?";
}
}
}
# Upload the manifest.
print STDERR "uploading manifest...\n";
if ($localCopy) {
copyFile $manifest, $localManifestFile;
copyFile "$manifest.bz2", "$localManifestFile.bz2";
} else {
system("$curl --show-error --upload-file " .
"'$manifest' '$manifestPutURL' > /dev/null") == 0 or
die "curl failed on $manifest: $?";
system("$curl --show-error --upload-file " .
"'$manifest'.bz2 '$manifestPutURL'.bz2 > /dev/null") == 0 or
die "curl failed on $manifest: $?";
}
# Optionally write a manifest.
writeManifest "$destDir/MANIFEST", \%narFiles, \() if $writeManifest;

4
src/libexpr/eval.cc
View file

@ -181,7 +181,7 @@ EvalState::EvalState()
searchPathInsertionPoint = searchPath.end();
Strings paths = tokenizeString(getEnv("NIX_PATH", ""), ":");
foreach (Strings::iterator, i, paths) addToSearchPath(*i);
addToSearchPath("nix=" + nixDataDir + "/nix/corepkgs");
addToSearchPath("nix=" + settings.nixDataDir + "/nix/corepkgs");
searchPathInsertionPoint = searchPath.begin();
createBaseEnv();
@ -1091,7 +1091,7 @@ string EvalState::coerceToString(Value & v, PathSet & context,
if (srcToStore[path] != "")
dstPath = srcToStore[path];
else {
dstPath = readOnlyMode
dstPath = settings.readOnlyMode
? computeStorePathForPath(path).first
: store->addToStore(path);
srcToStore[path] = dstPath;

7
src/libexpr/get-drvs.hh
View file

@ -32,6 +32,8 @@ private:
bool metaInfoRead;
MetaInfo meta;
bool failed; // set if we get an AssertionError
public:
string name;
string attrPath; /* path towards the derivation */
@ -40,7 +42,7 @@ public:
/* !!! make this private */
Bindings * attrs;
DrvInfo() : metaInfoRead(false), attrs(0) { };
DrvInfo() : metaInfoRead(false), failed(false), attrs(0) { };
string queryDrvPath(EvalState & state) const;
string queryOutPath(EvalState & state) const;
@ -58,6 +60,9 @@ public:
}
void setMetaInfo(const MetaInfo & meta);
void setFailed() { failed = true; };
bool hasFailed() { return failed; };
};

12
src/libexpr/primops.cc
View file

@ -51,6 +51,12 @@ static void prim_import(EvalState & state, Value * * args, Value & v)
% path % ctx);
if (isDerivation(ctx))
try {
/* For performance, prefetch all substitute info. */
PathSet willBuild, willSubstitute, unknown;
unsigned long long downloadSize, narSize;
queryMissing(*store, singleton<PathSet>(ctx),
willBuild, willSubstitute, unknown, downloadSize, narSize);
/* !!! If using a substitute, we only need to fetch
the selected output of this derivation. */
store->buildPaths(singleton<PathSet>(ctx));
@ -617,7 +623,7 @@ static void prim_toFile(EvalState & state, Value * * args, Value & v)
refs.insert(path);
}
Path storePath = readOnlyMode
Path storePath = settings.readOnlyMode
? computeStorePathForText(name, contents, refs)
: store->addTextToStore(name, contents, refs);
@ -681,7 +687,7 @@ static void prim_filterSource(EvalState & state, Value * * args, Value & v)
FilterFromExpr filter(state, *args[0]);
Path dstPath = readOnlyMode
Path dstPath = settings.readOnlyMode
? computeStorePathForPath(path, true, htSHA256, filter).first
: store->addToStore(path, true, htSHA256, filter);
@ -1134,7 +1140,7 @@ void EvalState::createBaseEnv()
mkInt(v, time(0));
addConstant("__currentTime", v);
mkString(v, thisSystem.c_str());
mkString(v, settings.thisSystem.c_str());
addConstant("__currentSystem", v);
// Miscellaneous

47
src/libmain/shared.cc
View file

@ -64,7 +64,7 @@ void printMissing(StoreAPI & store, const PathSet & paths)
if (!unknown.empty()) {
printMsg(lvlInfo, format("don't know how to build these paths%1%:")
% (readOnlyMode ? " (may be caused by read-only store access)" : ""));
% (settings.readOnlyMode ? " (may be caused by read-only store access)" : ""));
foreach (PathSet::iterator, i, unknown)
printMsg(lvlInfo, format(" %1%") % *i);
}
@ -83,11 +83,20 @@ static void setLogType(string lt)
static bool showTrace = false;
string getArg(const string & opt,
Strings::iterator & i, const Strings::iterator & end)
{
++i;
if (i == end) throw UsageError(format("`%1%' requires an argument") % opt);
return *i;
}
/* Initialize and reorder arguments, then call the actual argument
processor. */
static void initAndRun(int argc, char * * argv)
{
setDefaultsFromEnvironment();
settings.processEnvironment();
settings.loadConfFile();
/* Catch SIGINT. */
struct sigaction act;
@ -146,20 +155,19 @@ static void initAndRun(int argc, char * * argv)
remaining.clear();
/* Process default options. */
int verbosityDelta = 0;
int verbosityDelta = lvlInfo;
for (Strings::iterator i = args.begin(); i != args.end(); ++i) {
string arg = *i;
if (arg == "--verbose" || arg == "-v") verbosityDelta++;
else if (arg == "--quiet") verbosityDelta--;
else if (arg == "--log-type") {
++i;
if (i == args.end()) throw UsageError("`--log-type' requires an argument");
setLogType(*i);
string s = getArg(arg, i, args.end());
setLogType(s);
}
else if (arg == "--no-build-output" || arg == "-Q")
buildVerbosity = lvlVomit;
settings.buildVerbosity = lvlVomit;
else if (arg == "--print-build-trace")
printBuildTrace = true;
settings.printBuildTrace = true;
else if (arg == "--help") {
printHelp();
return;
@ -169,23 +177,23 @@ static void initAndRun(int argc, char * * argv)
return;
}
else if (arg == "--keep-failed" || arg == "-K")
keepFailed = true;
settings.keepFailed = true;
else if (arg == "--keep-going" || arg == "-k")
keepGoing = true;
settings.keepGoing = true;
else if (arg == "--fallback")
tryFallback = true;
settings.set("build-fallback", "true");
else if (arg == "--max-jobs" || arg == "-j")
maxBuildJobs = getIntArg<unsigned int>(arg, i, args.end());
settings.set("build-max-jobs", getArg(arg, i, args.end()));
else if (arg == "--cores")
buildCores = getIntArg<unsigned int>(arg, i, args.end());
settings.set("build-cores", getArg(arg, i, args.end()));
else if (arg == "--readonly-mode")
readOnlyMode = true;
settings.readOnlyMode = true;
else if (arg == "--max-silent-time")
maxSilentTime = getIntArg<unsigned int>(arg, i, args.end());
settings.set("build-max-silent-time", getArg(arg, i, args.end()));
else if (arg == "--timeout")
buildTimeout = getIntArg<unsigned int>(arg, i, args.end());
settings.set("build-timeout", getArg(arg, i, args.end()));
else if (arg == "--no-build-hook")
useBuildHook = false;
settings.useBuildHook = false;
else if (arg == "--show-trace")
showTrace = true;
else if (arg == "--option") {
@ -193,14 +201,15 @@ static void initAndRun(int argc, char * * argv)
string name = *i;
++i; if (i == args.end()) throw UsageError("`--option' requires two arguments");
string value = *i;
overrideSetting(name, tokenizeString(value));
settings.set(name, value);
}
else remaining.push_back(arg);
}
verbosityDelta += queryIntSetting("verbosity", lvlInfo);
verbosity = (Verbosity) (verbosityDelta < 0 ? 0 : verbosityDelta);
settings.update();
run(remaining);
/* Close the Nix database. */

257
src/libstore/build.cc
View file

@ -94,7 +94,7 @@ typedef map<Path, WeakGoalPtr> WeakGoalMap;
class Goal : public boost::enable_shared_from_this<Goal>
{
public:
typedef enum {ecBusy, ecSuccess, ecFailed} ExitCode;
typedef enum {ecBusy, ecSuccess, ecFailed, ecNoSubstituters} ExitCode;
protected:
@ -111,6 +111,10 @@ protected:
/* Number of goals we are/were waiting for that have failed. */
unsigned int nrFailed;
/* Number of substitution goals we are/were waiting for that
failed because there are no substituters. */
unsigned int nrNoSubstituters;
/* Name of this goal for debugging purposes. */
string name;
@ -119,7 +123,7 @@ protected:
Goal(Worker & worker) : worker(worker)
{
nrFailed = 0;
nrFailed = nrNoSubstituters = 0;
exitCode = ecBusy;
}
@ -225,8 +229,6 @@ private:
public:
bool cacheFailure;
/* Set if at least one derivation had a BuildError (i.e. permanent
failure). */
bool permanentFailure;
@ -306,9 +308,11 @@ void Goal::waiteeDone(GoalPtr waitee, ExitCode result)
trace(format("waitee `%1%' done; %2% left") %
waitee->name % waitees.size());
if (result == ecFailed) ++nrFailed;
if (result == ecFailed || result == ecNoSubstituters) ++nrFailed;
if (waitees.empty() || (result == ecFailed && !keepGoing)) {
if (result == ecNoSubstituters) ++nrNoSubstituters;
if (waitees.empty() || (result == ecFailed && !settings.keepGoing)) {
/* If we failed and keepGoing is not set, we remove all
remaining waitees. */
@ -330,7 +334,7 @@ void Goal::amDone(ExitCode result)
{
trace("done");
assert(exitCode == ecBusy);
assert(result == ecSuccess || result == ecFailed);
assert(result == ecSuccess || result == ecFailed || result == ecNoSubstituters);
exitCode = result;
foreach (WeakGoals::iterator, i, waiters) {
GoalPtr goal = i->lock();
@ -365,6 +369,7 @@ void commonChildInit(Pipe & logPipe)
if (dup2(logPipe.writeSide, STDERR_FILENO) == -1)
throw SysError("cannot pipe standard error into log file");
logPipe.readSide.close();
logPipe.writeSide.close();
/* Dup stderr to stdout. */
if (dup2(STDERR_FILENO, STDOUT_FILENO) == -1)
@ -459,14 +464,13 @@ void UserLock::acquire()
{
assert(uid == 0);
string buildUsersGroup = querySetting("build-users-group", "");
assert(buildUsersGroup != "");
assert(settings.buildUsersGroup != "");
/* Get the members of the build-users-group. */
struct group * gr = getgrnam(buildUsersGroup.c_str());
struct group * gr = getgrnam(settings.buildUsersGroup.c_str());
if (!gr)
throw Error(format("the group `%1%' specified in `build-users-group' does not exist")
% buildUsersGroup);
% settings.buildUsersGroup);
gid = gr->gr_gid;
/* Copy the result of getgrnam. */
@ -478,7 +482,7 @@ void UserLock::acquire()
if (users.empty())
throw Error(format("the build users group `%1%' has no members")
% buildUsersGroup);
% settings.buildUsersGroup);
/* Find a user account that isn't currently in use for another
build. */
@ -488,11 +492,11 @@ void UserLock::acquire()
struct passwd * pw = getpwnam(i->c_str());
if (!pw)
throw Error(format("the user `%1%' in the group `%2%' does not exist")
% *i % buildUsersGroup);
% *i % settings.buildUsersGroup);
createDirs(nixStateDir + "/userpool");
createDirs(settings.nixStateDir + "/userpool");
fnUserLock = (format("%1%/userpool/%2%") % nixStateDir % pw->pw_uid).str();
fnUserLock = (format("%1%/userpool/%2%") % settings.nixStateDir % pw->pw_uid).str();
if (lockedPaths.find(fnUserLock) != lockedPaths.end())
/* We already have a lock on this one. */
@ -512,7 +516,7 @@ void UserLock::acquire()
/* Sanity check... */
if (uid == getuid() || uid == geteuid())
throw Error(format("the Nix user should not be a member of `%1%'")
% buildUsersGroup);
% settings.buildUsersGroup);
return;
}
@ -520,7 +524,7 @@ void UserLock::acquire()
throw Error(format("all build users are currently in use; "
"consider creating additional users and adding them to the `%1%' group")
% buildUsersGroup);
% settings.buildUsersGroup);
}
@ -539,7 +543,7 @@ static void runSetuidHelper(const string & command,
const string & arg)
{
Path program = getEnv("NIX_SETUID_HELPER",
nixLibexecDir + "/nix-setuid-helper");
settings.nixLibexecDir + "/nix-setuid-helper");
/* Fork. */
Pid pid;
@ -594,12 +598,6 @@ bool amPrivileged()
}
bool haveBuildUsers()
{
return querySetting("build-users-group", "") != "";
}
void getOwnership(const Path & path)
{
runSetuidHelper("get-ownership", path);
@ -614,7 +612,7 @@ void deletePathWrapped(const Path & path, unsigned long long & bytesFreed)
} catch (SysError & e) {
/* If this failed due to a permission error, then try it with
the setuid helper. */
if (haveBuildUsers() && !amPrivileged()) {
if (settings.buildUsersGroup != "" && !amPrivileged()) {
getOwnership(path);
deletePath(path, bytesFreed);
} else
@ -693,9 +691,9 @@ HookInstance::HookInstance()
throw SysError("dupping builder's stdout/stderr");
/* XXX: Pass `buildTimeout' to the hook? */
execl(buildHook.c_str(), buildHook.c_str(), thisSystem.c_str(),
(format("%1%") % maxSilentTime).str().c_str(),
(format("%1%") % printBuildTrace).str().c_str(),
execl(buildHook.c_str(), buildHook.c_str(), settings.thisSystem.c_str(),
(format("%1%") % settings.maxSilentTime).str().c_str(),
(format("%1%") % settings.printBuildTrace).str().c_str(),
NULL);
throw SysError(format("executing `%1%'") % buildHook);
@ -735,6 +733,8 @@ HookInstance::~HookInstance()
typedef enum {rpAccept, rpDecline, rpPostpone} HookReply;
class SubstitutionGoal;
class DerivationGoal : public Goal
{
private:
@ -933,7 +933,7 @@ void DerivationGoal::init()
{
trace("init");
if (readOnlyMode)
if (settings.readOnlyMode)
throw Error(format("cannot build derivation `%1%' - no write access to the Nix store") % drvPath);
/* The first thing to do is to make sure that the derivation
@ -985,10 +985,8 @@ void DerivationGoal::haveDerivation()
/* We are first going to try to create the invalid output paths
through substitutes. If that doesn't work, we'll build
them. */
if (settings.useSubstitutes)
foreach (PathSet::iterator, i, invalidOutputs)
/* Don't bother creating a substitution goal if there are no
substitutes. */
if (queryBoolSetting("build-use-substitutes", true) && worker.store.hasSubstitutes(*i))
addWaitee(worker.makeSubstitutionGoal(*i));
if (waitees.empty()) /* to prevent hang (no wake-up event) */
@ -1002,10 +1000,10 @@ void DerivationGoal::outputsSubstituted()
{
trace("all outputs substituted (maybe)");
if (nrFailed > 0 && !tryFallback)
if (nrFailed > 0 && nrFailed > nrNoSubstituters && !settings.tryFallback)
throw Error(format("some substitutes for the outputs of derivation `%1%' failed; try `--fallback'") % drvPath);
nrFailed = 0;
nrFailed = nrNoSubstituters = 0;
if (checkPathValidity(false).size() == 0) {
amDone(ecSuccess);
@ -1101,9 +1099,9 @@ PathSet outputPaths(const DerivationOutputs & outputs)
static bool canBuildLocally(const string & platform)
{
return platform == thisSystem
return platform == settings.thisSystem
#ifdef CAN_DO_LINUX32_BUILDS
|| (platform == "i686-linux" && thisSystem == "x86_64-linux")
|| (platform == "i686-linux" && settings.thisSystem == "x86_64-linux")
#endif
;
}
@ -1205,7 +1203,7 @@ void DerivationGoal::tryToBuild()
derivation prefers to be done locally, do it even if
maxBuildJobs is 0. */
unsigned int curBuilds = worker.getNrLocalBuilds();
if (curBuilds >= maxBuildJobs && !(preferLocalBuild && curBuilds == 0)) {
if (curBuilds >= settings.maxBuildJobs && !(preferLocalBuild && curBuilds == 0)) {
worker.waitForBuildSlot(shared_from_this());
outputLocks.unlock();
return;
@ -1220,7 +1218,7 @@ void DerivationGoal::tryToBuild()
printMsg(lvlError, e.msg());
outputLocks.unlock();
buildUser.release();
if (printBuildTrace)
if (settings.printBuildTrace)
printMsg(lvlError, format("@ build-failed %1% %2% %3% %4%")
% drvPath % drv.outputs["out"].path % 0 % e.msg());
worker.permanentFailure = true;
@ -1352,7 +1350,7 @@ void DerivationGoal::buildDone()
bool hookError = hook &&
(!WIFEXITED(status) || WEXITSTATUS(status) != 100);
if (printBuildTrace) {
if (settings.printBuildTrace) {
if (hook && hookError)
printMsg(lvlError, format("@ hook-failed %1% %2% %3% %4%")
% drvPath % drv.outputs["out"].path % status % e.msg());
@ -1368,7 +1366,7 @@ void DerivationGoal::buildDone()
able to access the network). Hook errors (like
communication problems with the remote machine) shouldn't
be cached either. */
if (worker.cacheFailure && !hookError && !fixedOutput)
if (settings.cacheFailure && !hookError && !fixedOutput)
foreach (DerivationOutputs::iterator, i, drv.outputs)
worker.store.registerFailedPath(i->second.path);
@ -1380,7 +1378,7 @@ void DerivationGoal::buildDone()
/* Release the build user, if applicable. */
buildUser.release();
if (printBuildTrace) {
if (settings.printBuildTrace) {
printMsg(lvlError, format("@ build-succeeded %1% %2%")
% drvPath % drv.outputs["out"].path);
}
@ -1391,7 +1389,7 @@ void DerivationGoal::buildDone()
HookReply DerivationGoal::tryBuildHook()
{
if (!useBuildHook || getEnv("NIX_BUILD_HOOK") == "") return rpDecline;
if (!settings.useBuildHook || getEnv("NIX_BUILD_HOOK") == "") return rpDecline;
if (!worker.hook)
worker.hook = boost::shared_ptr<HookInstance>(new HookInstance);
@ -1404,7 +1402,7 @@ HookReply DerivationGoal::tryBuildHook()
/* Send the request to the hook. */
writeLine(worker.hook->toHook.writeSide, (format("%1% %2% %3% %4%")
% (worker.getNrLocalBuilds() < maxBuildJobs ? "1" : "0")
% (worker.getNrLocalBuilds() < settings.maxBuildJobs ? "1" : "0")
% drv.platform % drvPath % concatStringsSep(",", features)).str());
/* Read the first line of input, which should be a word indicating
@ -1463,7 +1461,7 @@ HookReply DerivationGoal::tryBuildHook()
fds.insert(hook->builderOut.readSide);
worker.childStarted(shared_from_this(), hook->pid, fds, false, false);
if (printBuildTrace)
if (settings.printBuildTrace)
printMsg(lvlError, format("@ build-started %1% %2% %3% %4%")
% drvPath % drv.outputs["out"].path % drv.platform % logFile);
@ -1494,7 +1492,7 @@ void DerivationGoal::startBuilder()
if (!canBuildLocally(drv.platform))
throw Error(
format("a `%1%' is required to build `%3%', but I am a `%2%'")
% drv.platform % thisSystem % drvPath);
% drv.platform % settings.thisSystem % drvPath);
/* Construct the environment passed to the builder. */
@ -1515,10 +1513,10 @@ void DerivationGoal::startBuilder()
shouldn't care, but this is useful for purity checking (e.g.,
the compiler or linker might only want to accept paths to files
in the store or in the build directory). */
env["NIX_STORE"] = nixStore;
env["NIX_STORE"] = settings.nixStore;
/* The maximum number of cores to utilize for parallel building. */
env["NIX_BUILD_CORES"] = (format("%d") % buildCores).str();
env["NIX_BUILD_CORES"] = (format("%d") % settings.buildCores).str();
/* Add all bindings specified in the derivation. */
foreach (StringPairs::iterator, i, drv.env)
@ -1610,7 +1608,7 @@ void DerivationGoal::startBuilder()
/* If `build-users-group' is not empty, then we have to build as
one of the members of that group. */
if (haveBuildUsers()) {
if (settings.buildUsersGroup != "") {
buildUser.acquire();
assert(buildUser.getUID() != 0);
assert(buildUser.getGID() != 0);
@ -1632,15 +1630,15 @@ void DerivationGoal::startBuilder()
the builder can create its output but not mess with the
outputs of other processes). */
struct stat st;
if (stat(nixStore.c_str(), &st) == -1)
throw SysError(format("cannot stat `%1%'") % nixStore);
if (stat(settings.nixStore.c_str(), &st) == -1)
throw SysError(format("cannot stat `%1%'") % settings.nixStore);
if (!(st.st_mode & S_ISVTX) ||
((st.st_mode & S_IRWXG) != S_IRWXG) ||
(st.st_gid != buildUser.getGID()))
throw Error(format(
"builder does not have write permission to `%2%'; "
"try `chgrp %1% %2%; chmod 1775 %2%'")
% buildUser.getGID() % nixStore);
% buildUser.getGID() % settings.nixStore);
}
@ -1649,7 +1647,7 @@ void DerivationGoal::startBuilder()
functions like fetchurl (which needs a proper /etc/resolv.conf)
work properly. Purity checking for fixed-output derivations
is somewhat pointless anyway. */
useChroot = queryBoolSetting("build-use-chroot", false);
useChroot = settings.useChroot;
if (fixedOutput) useChroot = false;
@ -1699,16 +1697,8 @@ void DerivationGoal::startBuilder()
writeFile(chrootRootDir + "/etc/hosts", "127.0.0.1 localhost\n");
/* Bind-mount a user-configurable set of directories from the
host file system. The `/dev/pts' directory must be mounted
separately so that newly-created pseudo-terminals show
up. */
Paths defaultDirs;
defaultDirs.push_back("/dev");
defaultDirs.push_back("/dev/pts");
Paths dirsInChroot_ = querySetting("build-chroot-dirs", defaultDirs);
dirsInChroot.insert(dirsInChroot_.begin(), dirsInChroot_.end());
host file system. */
dirsInChroot = settings.dirsInChroot;
dirsInChroot.insert(tmpDir);
/* Make the closure of the inputs available in the chroot,
@ -1718,8 +1708,8 @@ void DerivationGoal::startBuilder()
can be bind-mounted). !!! As an extra security
precaution, make the fake Nix store only writable by the
build user. */
createDirs(chrootRootDir + nixStore);
chmod_(chrootRootDir + nixStore, 01777);
createDirs(chrootRootDir + settings.nixStore);
chmod_(chrootRootDir + settings.nixStore, 01777);
foreach (PathSet::iterator, i, inputPaths) {
struct stat st;
@ -1819,7 +1809,7 @@ void DerivationGoal::startBuilder()
worker.childStarted(shared_from_this(), pid,
singleton<set<int> >(builderOut.readSide), true, true);
if (printBuildTrace) {
if (settings.printBuildTrace) {
printMsg(lvlError, format("@ build-started %1% %2% %3% %4%")
% drvPath % drv.outputs["out"].path % drv.platform % logFile);
}
@ -1917,16 +1907,14 @@ void DerivationGoal::initChild()
#ifdef CAN_DO_LINUX32_BUILDS
/* Change the personality to 32-bit if we're doing an
i686-linux build on an x86_64-linux machine. */
if (drv.platform == "i686-linux" && thisSystem == "x86_64-linux") {
if (drv.platform == "i686-linux" && settings.thisSystem == "x86_64-linux") {
if (personality(0x0008 | 0x8000000 /* == PER_LINUX32_3GB */) == -1)
throw SysError("cannot set i686-linux personality");
}
/* Impersonate a Linux 2.6 machine to get some determinism in
builds that depend on the kernel version. */
if ((drv.platform == "i686-linux" || drv.platform == "x86_64-linux") &&
queryBoolSetting("build-impersonate-linux-26", true))
{
if ((drv.platform == "i686-linux" || drv.platform == "x86_64-linux") && settings.impersonateLinux26) {
int cur = personality(0xffffffff);
if (cur != -1) personality(cur | 0x0020000 /* == UNAME26 */);
}
@ -1968,7 +1956,7 @@ void DerivationGoal::initChild()
} else {
/* Let the setuid helper take care of it. */
program = nixLibexecDir + "/nix-setuid-helper";
program = settings.nixLibexecDir + "/nix-setuid-helper";
args.push_back(program.c_str());
args.push_back("run-builder");
user = buildUser.getUser().c_str();
@ -2136,13 +2124,13 @@ string drvsLogDir = "drvs";
Path DerivationGoal::openLogFile()
{
if (!queryBoolSetting("build-keep-log", true)) return "";
if (!settings.keepLog) return "";
/* Create a log file. */
Path dir = (format("%1%/%2%") % nixLogDir % drvsLogDir).str();
Path dir = (format("%1%/%2%") % settings.nixLogDir % drvsLogDir).str();
createDirs(dir);
if (queryBoolSetting("build-compress-log", true)) {
if (settings.compressLog) {
Path logFileName = (format("%1%/%2%.bz2") % dir % baseNameOf(drvPath)).str();
AutoCloseFD fd = open(logFileName.c_str(), O_CREAT | O_WRONLY | O_TRUNC, 0666);
@ -2189,7 +2177,7 @@ void DerivationGoal::closeLogFile()
void DerivationGoal::deleteTmpDir(bool force)
{
if (tmpDir != "") {
if (keepFailed && !force) {
if (settings.keepFailed && !force) {
printMsg(lvlError,
format("builder for `%1%' failed; keeping build directory `%2%'")
% drvPath % tmpDir);
@ -2209,7 +2197,7 @@ void DerivationGoal::handleChildOutput(int fd, const string & data)
if ((hook && fd == hook->builderOut.readSide) ||
(!hook && fd == builderOut.readSide))
{
if (verbosity >= buildVerbosity)
if (verbosity >= settings.buildVerbosity)
writeToStderr((unsigned char *) data.data(), data.size());
if (bzLogFile) {
int err;
@ -2245,13 +2233,13 @@ PathSet DerivationGoal::checkPathValidity(bool returnValid)
bool DerivationGoal::pathFailed(const Path & path)
{
if (!worker.cacheFailure) return false;
if (!settings.cacheFailure) return false;
if (!worker.store.hasPathFailed(path)) return false;
printMsg(lvlError, format("builder for `%1%' failed previously (cached)") % path);
if (printBuildTrace)
if (settings.printBuildTrace)
printMsg(lvlError, format("@ build-failed %1% %2% cached") % drvPath % path);
worker.permanentFailure = true;
@ -2278,10 +2266,16 @@ private:
/* The current substituter. */
Path sub;
/* Whether any substituter can realise this path */
bool hasSubstitute;
/* Path info returned by the substituter's query info operation. */
SubstitutablePathInfo info;
/* Pipe for the substitute's standard output/error. */
/* Pipe for the substituter's standard output. */
Pipe outPipe;
/* Pipe for the substituter's standard error. */
Pipe logPipe;
/* The process ID of the builder. */
@ -2319,6 +2313,7 @@ public:
SubstitutionGoal::SubstitutionGoal(const Path & storePath, Worker & worker)
: Goal(worker)
, hasSubstitute(false)
{
this->storePath = storePath;
state = &SubstitutionGoal::init;
@ -2365,10 +2360,10 @@ void SubstitutionGoal::init()
return;
}
if (readOnlyMode)
if (settings.readOnlyMode)
throw Error(format("cannot substitute path `%1%' - no write access to the Nix store") % storePath);
subs = substituters;
subs = settings.substituters;
tryNext();
}
@ -2382,17 +2377,23 @@ void SubstitutionGoal::tryNext()
/* None left. Terminate this goal and let someone else deal
with it. */
debug(format("path `%1%' is required, but there is no substituter that can build it") % storePath);
amDone(ecFailed);
/* Hack: don't indicate failure if there were no substituters.
In that case the calling derivation should just do a
build. */
amDone(hasSubstitute ? ecFailed : ecNoSubstituters);
return;
}
sub = subs.front();
subs.pop_front();
if (!worker.store.querySubstitutablePathInfo(sub, storePath, info)) {
tryNext();
return;
}
SubstitutablePathInfos infos;
PathSet dummy(singleton<PathSet>(storePath));
worker.store.querySubstitutablePathInfos(sub, dummy, infos);
SubstitutablePathInfos::iterator k = infos.find(storePath);
if (k == infos.end()) { tryNext(); return; }
info = k->second;
hasSubstitute = true;
/* To maintain the closure invariant, we first have to realise the
paths referenced by this one. */
@ -2434,7 +2435,7 @@ void SubstitutionGoal::tryToRun()
is maxBuildJobs == 0 (no local builds allowed), we still allow
a substituter to run. This is because substitutions cannot be
distributed to another machine via the build hook. */
if (worker.getNrLocalBuilds() >= (maxBuildJobs == 0 ? 1 : maxBuildJobs)) {
if (worker.getNrLocalBuilds() >= (settings.maxBuildJobs == 0 ? 1 : settings.maxBuildJobs)) {
worker.waitForBuildSlot(shared_from_this());
return;
}
@ -2467,6 +2468,7 @@ void SubstitutionGoal::tryToRun()
printMsg(lvlInfo, format("fetching path `%1%'...") % storePath);
outPipe.create();
logPipe.create();
/* Remove the (stale) output path if it exists. */
@ -2483,10 +2485,17 @@ void SubstitutionGoal::tryToRun()
case 0:
try { /* child */
logPipe.readSide.close();
commonChildInit(logPipe);
if (dup2(outPipe.writeSide, STDOUT_FILENO) == -1)
throw SysError("cannot dup output pipe into stdout");
outPipe.readSide.close();
outPipe.writeSide.close();
/* Pass configuration options (including those overriden
with --option) to the substituter. */
setenv("_NIX_OPTIONS", settings.pack().c_str(), 1);
/* Fill in the arguments. */
Strings args;
args.push_back(baseNameOf(sub));
@ -2507,13 +2516,14 @@ void SubstitutionGoal::tryToRun()
/* parent */
pid.setSeparatePG(true);
pid.setKillSignal(SIGTERM);
outPipe.writeSide.close();
logPipe.writeSide.close();
worker.childStarted(shared_from_this(),
pid, singleton<set<int> >(logPipe.readSide), true, true);
state = &SubstitutionGoal::finished;
if (printBuildTrace) {
if (settings.printBuildTrace) {
printMsg(lvlError, format("@ substituter-started %1% %2%")
% storePath % sub);
}
@ -2535,9 +2545,12 @@ void SubstitutionGoal::finished()
/* Close the read side of the logger pipe. */
logPipe.readSide.close();
debug(format("substitute for `%1%' finished") % storePath);
/* Get the hash info from stdout. */
string expectedHashStr = statusOk(status) ? readLine(outPipe.readSide) : "";
outPipe.readSide.close();
/* Check the exit status and the build result. */
HashResult hash;
try {
if (!statusOk(status))
@ -2547,11 +2560,28 @@ void SubstitutionGoal::finished()
if (!pathExists(storePath))
throw SubstError(format("substitute did not produce path `%1%'") % storePath);
hash = hashPath(htSHA256, storePath);
/* Verify the expected hash we got from the substituer. */
if (expectedHashStr != "") {
size_t n = expectedHashStr.find(':');
if (n == string::npos)
throw Error(format("bad hash from substituter: %1%") % expectedHashStr);
HashType hashType = parseHashType(string(expectedHashStr, 0, n));
if (hashType == htUnknown)
throw Error(format("unknown hash algorithm in `%1%'") % expectedHashStr);
Hash expectedHash = parseHash16or32(hashType, string(expectedHashStr, n + 1));
Hash actualHash = hashType == htSHA256 ? hash.first : hashPath(hashType, storePath).first;
if (expectedHash != actualHash)
throw SubstError(format("hash mismatch in downloaded path `%1%': expected %2%, got %3%")
% storePath % printHash(expectedHash) % printHash(actualHash));
}
} catch (SubstError & e) {
printMsg(lvlInfo, e.msg());
if (printBuildTrace) {
if (settings.printBuildTrace) {
printMsg(lvlError, format("@ substituter-failed %1% %2% %3%")
% storePath % status % e.msg());
}
@ -2564,8 +2594,6 @@ void SubstitutionGoal::finished()
canonicalisePathMetaData(storePath);
HashResult hash = hashPath(htSHA256, storePath);
worker.store.optimisePath(storePath); // FIXME: combine with hashPath()
ValidPathInfo info2;
@ -2581,7 +2609,7 @@ void SubstitutionGoal::finished()
printMsg(lvlChatty,
format("substitution of path `%1%' succeeded") % storePath);
if (printBuildTrace) {
if (settings.printBuildTrace) {
printMsg(lvlError, format("@ substituter-succeeded %1%") % storePath);
}
@ -2592,7 +2620,7 @@ void SubstitutionGoal::finished()
void SubstitutionGoal::handleChildOutput(int fd, const string & data)
{
assert(fd == logPipe.readSide);
if (verbosity >= buildVerbosity)
if (verbosity >= settings.buildVerbosity)
writeToStderr((unsigned char *) data.data(), data.size());
/* Don't write substitution output to a log file for now. We
probably should, though. */
@ -2620,7 +2648,6 @@ Worker::Worker(LocalStore & store)
working = true;
nrLocalBuilds = 0;
lastWokenUp = 0;
cacheFailure = queryBoolSetting("build-cache-failure", false);
permanentFailure = false;
}
@ -2685,7 +2712,7 @@ void Worker::removeGoal(GoalPtr goal)
topGoals.erase(goal);
/* If a top-level goal failed, then kill all other goals
(unless keepGoing was set). */
if (goal->getExitCode() == Goal::ecFailed && !keepGoing)
if (goal->getExitCode() == Goal::ecFailed && !settings.keepGoing)
topGoals.clear();
}
@ -2757,7 +2784,7 @@ void Worker::childTerminated(pid_t pid, bool wakeSleepers)
void Worker::waitForBuildSlot(GoalPtr goal)
{
debug("wait for build slot");
if (getNrLocalBuilds() < maxBuildJobs)
if (getNrLocalBuilds() < settings.maxBuildJobs)
wakeUp(goal); /* we can do it right away */
else
wantingToBuild.insert(goal);
@ -2806,7 +2833,7 @@ void Worker::run(const Goals & _topGoals)
if (!children.empty() || !waitingForAWhile.empty())
waitForInput();
else {
if (awake.empty() && maxBuildJobs == 0) throw Error(
if (awake.empty() && settings.maxBuildJobs == 0) throw Error(
"unable to start any build; either increase `--max-jobs' "
"or enable distributed builds");
assert(!awake.empty());
@ -2816,9 +2843,9 @@ void Worker::run(const Goals & _topGoals)
/* If --keep-going is not set, it's possible that the main goal
exited while some of its subgoals were still active. But if
--keep-going *is* set, then they must all be finished now. */
assert(!keepGoing || awake.empty());
assert(!keepGoing || wantingToBuild.empty());
assert(!keepGoing || children.empty());
assert(!settings.keepGoing || awake.empty());
assert(!settings.keepGoing || wantingToBuild.empty());
assert(!settings.keepGoing || children.empty());
}
@ -2838,15 +2865,15 @@ void Worker::waitForInput()
time_t before = time(0);
/* If a global timeout has been set, sleep until it's done. */
if (buildTimeout != 0) {
if (settings.buildTimeout != 0) {
useTimeout = true;
if (lastWait == 0 || lastWait > before) lastWait = before;
timeout.tv_sec = std::max((time_t) 0, lastWait + buildTimeout - before);
timeout.tv_sec = std::max((time_t) 0, lastWait + settings.buildTimeout - before);
}
/* If we're monitoring for silence on stdout/stderr, sleep until
the first deadline for any child. */
if (maxSilentTime != 0) {
if (settings.maxSilentTime != 0) {
time_t oldest = 0;
foreach (Children::iterator, i, children) {
if (i->second.monitorForSilence) {
@ -2855,7 +2882,7 @@ void Worker::waitForInput()
}
}
if (oldest) {
time_t silenceTimeout = std::max((time_t) 0, oldest + maxSilentTime - before);
time_t silenceTimeout = std::max((time_t) 0, oldest + settings.maxSilentTime - before);
timeout.tv_sec = useTimeout
? std::min(silenceTimeout, timeout.tv_sec)
: silenceTimeout;
@ -2866,14 +2893,12 @@ void Worker::waitForInput()
/* If we are polling goals that are waiting for a lock, then wake
up after a few seconds at most. */
int wakeUpInterval = queryIntSetting("build-poll-interval", 5);
if (!waitingForAWhile.empty()) {
useTimeout = true;
if (lastWokenUp == 0)
printMsg(lvlError, "waiting for locks or build slots...");
if (lastWokenUp == 0 || lastWokenUp > before) lastWokenUp = before;
timeout.tv_sec = std::max((time_t) 0, lastWokenUp + wakeUpInterval - before);
timeout.tv_sec = std::max((time_t) 0, (time_t) (lastWokenUp + settings.pollInterval - before));
} else lastWokenUp = 0;
using namespace std;
@ -2939,27 +2964,27 @@ void Worker::waitForInput()
}
}
if (maxSilentTime != 0 &&
if (settings.maxSilentTime != 0 &&
j->second.monitorForSilence &&
after - j->second.lastOutput >= (time_t) maxSilentTime)
after - j->second.lastOutput >= (time_t) settings.maxSilentTime)
{
printMsg(lvlError,
format("%1% timed out after %2% seconds of silence")
% goal->getName() % maxSilentTime);
% goal->getName() % settings.maxSilentTime);
goal->cancel();
}
if (buildTimeout != 0 &&
after - before >= (time_t) buildTimeout)
if (settings.buildTimeout != 0 &&
after - before >= (time_t) settings.buildTimeout)
{
printMsg(lvlError,
format("%1% timed out after %2% seconds of activity")
% goal->getName() % buildTimeout);
% goal->getName() % settings.buildTimeout);
goal->cancel();
}
}
if (!waitingForAWhile.empty() && lastWokenUp + wakeUpInterval <= after) {
if (!waitingForAWhile.empty() && lastWokenUp + settings.pollInterval <= after) {
lastWokenUp = after;
foreach (WeakGoals::iterator, i, waitingForAWhile) {
GoalPtr goal = i->lock();

2
src/libstore/derivations.cc
View file

@ -38,7 +38,7 @@ Path writeDerivation(StoreAPI & store,
held during a garbage collection). */
string suffix = name + drvExtension;
string contents = unparseDerivation(drv);
return readOnlyMode
return settings.readOnlyMode
? computeStorePathForText(suffix, contents, references)
: store.addTextToStore(suffix, contents, references);
}

28
src/libstore/gc.cc
View file

@ -34,7 +34,7 @@ static const int defaultGcLevel = 1000;
int LocalStore::openGCLock(LockType lockType)
{
Path fnGCLock = (format("%1%/%2%")
% nixStateDir % gcLockName).str();
% settings.nixStateDir % gcLockName).str();
debug(format("acquiring global GC lock `%1%'") % fnGCLock);
@ -85,7 +85,7 @@ void LocalStore::addIndirectRoot(const Path & path)
{
string hash = printHash32(hashString(htSHA1, path));
Path realRoot = canonPath((format("%1%/%2%/auto/%3%")
% nixStateDir % gcRootsDir % hash).str());
% settings.nixStateDir % gcRootsDir % hash).str());
createSymlink(realRoot, path);
}
@ -113,7 +113,7 @@ Path addPermRoot(StoreAPI & store, const Path & _storePath,
else {
if (!allowOutsideRootsDir) {
Path rootsDir = canonPath((format("%1%/%2%") % nixStateDir % gcRootsDir).str());
Path rootsDir = canonPath((format("%1%/%2%") % settings.nixStateDir % gcRootsDir).str());
if (string(gcRoot, 0, rootsDir.size() + 1) != rootsDir + "/")
throw Error(format(
@ -130,7 +130,7 @@ Path addPermRoot(StoreAPI & store, const Path & _storePath,
Instead of reading all the roots, it would be more efficient to
check if the root is in a directory in or linked from the
gcroots directory. */
if (queryBoolSetting("gc-check-reachability", false)) {
if (settings.checkRootReachability) {
Roots roots = store.findRoots();
if (roots.find(gcRoot) == roots.end())
printMsg(lvlError,
@ -160,7 +160,7 @@ void LocalStore::addTempRoot(const Path & path)
if (fdTempRoots == -1) {
while (1) {
Path dir = (format("%1%/%2%") % nixStateDir % tempRootsDir).str();
Path dir = (format("%1%/%2%") % settings.nixStateDir % tempRootsDir).str();
createDirs(dir);
fnTempRoots = (format("%1%/%2%")
@ -238,10 +238,10 @@ static void readTempRoots(PathSet & tempRoots, FDs & fds)
/* Read the `temproots' directory for per-process temporary root
files. */
Strings tempRootFiles = readDirectory(
(format("%1%/%2%") % nixStateDir % tempRootsDir).str());
(format("%1%/%2%") % settings.nixStateDir % tempRootsDir).str());
foreach (Strings::iterator, i, tempRootFiles) {
Path path = (format("%1%/%2%/%3%") % nixStateDir % tempRootsDir % *i).str();
Path path = (format("%1%/%2%/%3%") % settings.nixStateDir % tempRootsDir % *i).str();
debug(format("reading temporary root file `%1%'") % path);
FDPtr fd(new AutoCloseFD(open(path.c_str(), O_RDWR, 0666)));
@ -350,7 +350,7 @@ static void findRoots(StoreAPI & store, const Path & path,
static Roots findRoots(StoreAPI & store, bool deleteStale)
{
Roots roots;
Path rootsDir = canonPath((format("%1%/%2%") % nixStateDir % gcRootsDir).str());
Path rootsDir = canonPath((format("%1%/%2%") % settings.nixStateDir % gcRootsDir).str());
findRoots(store, rootsDir, true, deleteStale, roots);
return roots;
}
@ -365,7 +365,7 @@ Roots LocalStore::findRoots()
static void addAdditionalRoots(StoreAPI & store, PathSet & roots)
{
Path rootFinder = getEnv("NIX_ROOT_FINDER",
nixLibexecDir + "/nix/find-runtime-roots.pl");
settings.nixLibexecDir + "/nix/find-runtime-roots.pl");
if (rootFinder.empty()) return;
@ -623,8 +623,8 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
GCState state(results);
state.options = options;
state.gcKeepOutputs = queryBoolSetting("gc-keep-outputs", false);
state.gcKeepDerivations = queryBoolSetting("gc-keep-derivations", true);
state.gcKeepOutputs = settings.gcKeepOutputs;
state.gcKeepDerivations = settings.gcKeepDerivations;
/* Using `--ignore-liveness' with `--delete' can have unintended
consequences if `gc-keep-outputs' or `gc-keep-derivations' are
@ -685,8 +685,8 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
try {
AutoCloseDir dir = opendir(nixStore.c_str());
if (!dir) throw SysError(format("opening directory `%1%'") % nixStore);
AutoCloseDir dir = opendir(settings.nixStore.c_str());
if (!dir) throw SysError(format("opening directory `%1%'") % settings.nixStore);
/* Read the store and immediately delete all paths that
aren't valid. When using --max-freed etc., deleting
@ -700,7 +700,7 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
checkInterrupt();
string name = dirent->d_name;
if (name == "." || name == "..") continue;
Path path = nixStore + "/" + name;
Path path = settings.nixStore + "/" + name;
if (isValidPath(path))
entries.push_back(path);
else

211
src/libstore/globals.cc
View file

@ -10,36 +10,63 @@
namespace nix {
string nixStore = "/UNINIT";
string nixDataDir = "/UNINIT";
string nixLogDir = "/UNINIT";
string nixStateDir = "/UNINIT";
string nixDBPath = "/UNINIT";
string nixConfDir = "/UNINIT";
string nixLibexecDir = "/UNINIT";
string nixBinDir = "/UNINIT";
bool keepFailed = false;
bool keepGoing = false;
bool tryFallback = false;
Verbosity buildVerbosity = lvlError;
unsigned int maxBuildJobs = 1;
unsigned int buildCores = 1;
bool readOnlyMode = false;
string thisSystem = "unset";
time_t maxSilentTime = 0;
time_t buildTimeout = 0;
Paths substituters;
bool useBuildHook = true;
bool printBuildTrace = false;
Settings settings;
static bool settingsRead = false;
Settings::Settings()
{
keepFailed = false;
keepGoing = false;
tryFallback = false;
buildVerbosity = lvlError;
maxBuildJobs = 1;
buildCores = 1;
readOnlyMode = false;
thisSystem = SYSTEM;
maxSilentTime = 0;
buildTimeout = 0;
useBuildHook = true;
printBuildTrace = false;
reservedSize = 1024 * 1024;
fsyncMetadata = true;
useSQLiteWAL = true;
syncBeforeRegistering = false;
useSubstitutes = true;
useChroot = false;
dirsInChroot.insert("/dev");
dirsInChroot.insert("/dev/pts");
impersonateLinux26 = false;
keepLog = true;
compressLog = true;
cacheFailure = false;
pollInterval = 5;
checkRootReachability = false;
gcKeepOutputs = false;
gcKeepDerivations = true;
autoOptimiseStore = true;
envKeepDerivations = false;
}
static std::map<string, Strings> settings;
/* Overriden settings. */
std::map<string, Strings> settingsCmdline;
void Settings::processEnvironment()
{
nixStore = canonPath(getEnv("NIX_STORE_DIR", getEnv("NIX_STORE", NIX_STORE_DIR)));
nixDataDir = canonPath(getEnv("NIX_DATA_DIR", NIX_DATA_DIR));
nixLogDir = canonPath(getEnv("NIX_LOG_DIR", NIX_LOG_DIR));
nixStateDir = canonPath(getEnv("NIX_STATE_DIR", NIX_STATE_DIR));
nixDBPath = getEnv("NIX_DB_DIR", nixStateDir + "/db");
nixConfDir = canonPath(getEnv("NIX_CONF_DIR", NIX_CONF_DIR));
nixLibexecDir = canonPath(getEnv("NIX_LIBEXEC_DIR", NIX_LIBEXEC_DIR));
nixBinDir = canonPath(getEnv("NIX_BIN_DIR", NIX_BIN_DIR));
string subs = getEnv("NIX_SUBSTITUTERS", "default");
if (subs == "default") {
substituters.push_back(nixLibexecDir + "/nix/substituters/copy-from-other-stores.pl");
substituters.push_back(nixLibexecDir + "/nix/substituters/download-using-manifests.pl");
substituters.push_back(nixLibexecDir + "/nix/substituters/download-from-binary-cache.pl");
} else
substituters = tokenizeString(subs, ":");
}
string & at(Strings & ss, unsigned int n)
@ -50,7 +77,7 @@ string & at(Strings & ss, unsigned int n)
}
static void readSettings()
void Settings::loadConfFile()
{
Path settingsFile = (format("%1%/%2%") % nixConfDir % "nix.conf").str();
if (!pathExists(settingsFile)) return;
@ -78,94 +105,102 @@ static void readSettings()
Strings::iterator i = tokens.begin();
advance(i, 2);
settings[name] = Strings(i, tokens.end());
settings[name] = concatStringsSep(" ", Strings(i, tokens.end())); // FIXME: slow
};
settings.insert(settingsCmdline.begin(), settingsCmdline.end());
settingsRead = true;
}
Strings querySetting(const string & name, const Strings & def)
void Settings::set(const string & name, const string & value)
{
if (!settingsRead) readSettings();
std::map<string, Strings>::iterator i = settings.find(name);
return i == settings.end() ? def : i->second;
settings[name] = value;
overrides[name] = value;
}
string querySetting(const string & name, const string & def)
void Settings::update()
{
Strings defs;
defs.push_back(def);
Strings value = querySetting(name, defs);
if (value.size() != 1)
throw Error(format("configuration option `%1%' should not be a list") % name);
return value.front();
get(tryFallback, "build-fallback");
get(maxBuildJobs, "build-max-jobs");
get(buildCores, "build-cores");
get(thisSystem, "system");
get(maxSilentTime, "build-max-silent-time");
get(buildTimeout, "build-timeout");
get(reservedSize, "gc-reserved-space");
get(fsyncMetadata, "fsync-metadata");
get(useSQLiteWAL, "use-sqlite-wal");
get(syncBeforeRegistering, "sync-before-registering");
get(useSubstitutes, "build-use-substitutes");
get(buildUsersGroup, "build-users-group");
get(useChroot, "build-use-chroot");
get(dirsInChroot, "build-chroot-dirs");
get(impersonateLinux26, "build-impersonate-linux-26");
get(keepLog, "build-keep-log");
get(compressLog, "build-compress-log");
get(cacheFailure, "build-cache-failure");
get(pollInterval, "build-poll-interval");
get(checkRootReachability, "gc-check-reachability");
get(gcKeepOutputs, "gc-keep-outputs");
get(gcKeepDerivations, "gc-keep-derivations");
get(autoOptimiseStore, "auto-optimise-store");
get(envKeepDerivations, "env-keep-derivations");
}
bool queryBoolSetting(const string & name, bool def)
void Settings::get(string & res, const string & name)
{
string v = querySetting(name, def ? "true" : "false");
if (v == "true") return true;
else if (v == "false") return false;
SettingsMap::iterator i = settings.find(name);
if (i == settings.end()) return;
res = i->second;
}
void Settings::get(bool & res, const string & name)
{
SettingsMap::iterator i = settings.find(name);
if (i == settings.end()) return;
if (i->second == "true") res = true;
else if (i->second == "false") res = false;
else throw Error(format("configuration option `%1%' should be either `true' or `false', not `%2%'")
% name % v);
% name % i->second);
}
unsigned int queryIntSetting(const string & name, unsigned int def)
void Settings::get(PathSet & res, const string & name)
{
int n;
if (!string2Int(querySetting(name, int2String(def)), n) || n < 0)
SettingsMap::iterator i = settings.find(name);
if (i == settings.end()) return;
res.clear();
Strings ss = tokenizeString(i->second);
res.insert(ss.begin(), ss.end());
}
template<class N> void Settings::get(N & res, const string & name)
{
SettingsMap::iterator i = settings.find(name);
if (i == settings.end()) return;
if (!string2Int(i->second, res))
throw Error(format("configuration setting `%1%' should have an integer value") % name);
return n;
}
void overrideSetting(const string & name, const Strings & value)
string Settings::pack()
{
if (settingsRead) settings[name] = value;
settingsCmdline[name] = value;
string s;
foreach (SettingsMap::iterator, i, settings) {
if (i->first.find('\n') != string::npos ||
i->first.find('=') != string::npos ||
i->second.find('\n') != string::npos)
throw Error("illegal option name/value");
s += i->first; s += '='; s += i->second; s += '\n';
}
return s;
}
void reloadSettings()
Settings::SettingsMap Settings::getOverrides()
{
settingsRead = false;
settings.clear();
}
void setDefaultsFromEnvironment()
{
/* Setup Nix paths. */
nixStore = canonPath(getEnv("NIX_STORE_DIR", getEnv("NIX_STORE", NIX_STORE_DIR)));
nixDataDir = canonPath(getEnv("NIX_DATA_DIR", NIX_DATA_DIR));
nixLogDir = canonPath(getEnv("NIX_LOG_DIR", NIX_LOG_DIR));
nixStateDir = canonPath(getEnv("NIX_STATE_DIR", NIX_STATE_DIR));
nixDBPath = getEnv("NIX_DB_DIR", nixStateDir + "/db");
nixConfDir = canonPath(getEnv("NIX_CONF_DIR", NIX_CONF_DIR));
nixLibexecDir = canonPath(getEnv("NIX_LIBEXEC_DIR", NIX_LIBEXEC_DIR));
nixBinDir = canonPath(getEnv("NIX_BIN_DIR", NIX_BIN_DIR));
string subs = getEnv("NIX_SUBSTITUTERS", "default");
if (subs == "default") {
substituters.push_back(nixLibexecDir + "/nix/substituters/copy-from-other-stores.pl");
substituters.push_back(nixLibexecDir + "/nix/substituters/download-using-manifests.pl");
} else
substituters = tokenizeString(subs, ":");
/* Get some settings from the configuration file. */
thisSystem = querySetting("system", SYSTEM);
maxBuildJobs = queryIntSetting("build-max-jobs", 1);
buildCores = queryIntSetting("build-cores", 1);
maxSilentTime = queryIntSetting("build-max-silent-time", 0);
buildTimeout = queryIntSetting("build-timeout", 0);
return overrides;
}

209
src/libstore/globals.hh
View file

@ -2,91 +2,105 @@
#include "types.hh"
#include <map>
namespace nix {
/* Path names. */
struct Settings {
/* nixStore is the directory where we generally store atomic and
derived files. */
extern string nixStore;
typedef std::map<string, string> SettingsMap;
extern string nixDataDir; /* !!! fix */
Settings();
/* nixLogDir is the directory where we log various operations. */
extern string nixLogDir;
void processEnvironment();
/* nixStateDir is the directory where state is stored. */
extern string nixStateDir;
void loadConfFile();
/* nixDBPath is the path name of our Berkeley DB environment. */
extern string nixDBPath;
void set(const string & name, const string & value);
/* nixConfDir is the directory where configuration files are
stored. */
extern string nixConfDir;
void update();
/* nixLibexecDir is the directory where internal helper programs are
stored. */
extern string nixLibexecDir;
string pack();
/* nixBinDir is the directory where the main programs are stored. */
extern string nixBinDir;
SettingsMap getOverrides();
/* The directory where we store sources and derived files. */
Path nixStore;
/* Misc. global flags. */
Path nixDataDir; /* !!! fix */
/* The directory where we log various operations. */
Path nixLogDir;
/* The directory where state is stored. */
Path nixStateDir;
/* The directory where we keep the SQLite database. */
Path nixDBPath;
/* The directory where configuration files are stored. */
Path nixConfDir;
/* The directory where internal helper programs are stored. */
Path nixLibexecDir;
/* The directory where the main programs are stored. */
Path nixBinDir;
/* Whether to keep temporary directories of failed builds. */
extern bool keepFailed;
bool keepFailed;
/* Whether to keep building subgoals when a sibling (another subgoal
of the same goal) fails. */
extern bool keepGoing;
/* Whether to keep building subgoals when a sibling (another
subgoal of the same goal) fails. */
bool keepGoing;
/* Whether, if we cannot realise the known closure corresponding to a
derivation, we should try to normalise the derivation instead. */
extern bool tryFallback;
/* Whether, if we cannot realise the known closure corresponding
to a derivation, we should try to normalise the derivation
instead. */
bool tryFallback;
/* Verbosity level for build output. */
extern Verbosity buildVerbosity;
Verbosity buildVerbosity;
/* Maximum number of parallel build jobs. 0 means unlimited. */
extern unsigned int maxBuildJobs;
unsigned int maxBuildJobs;
/* Number of CPU cores to utilize in parallel within a build, i.e. by passing
this number to Make via '-j'. 0 means that the number of actual CPU cores on
the local host ought to be auto-detected. */
extern unsigned int buildCores;
/* Number of CPU cores to utilize in parallel within a build,
i.e. by passing this number to Make via '-j'. 0 means that the
number of actual CPU cores on the local host ought to be
auto-detected. */
unsigned int buildCores;
/* Read-only mode. Don't copy stuff to the store, don't change the
database. */
extern bool readOnlyMode;
/* Read-only mode. Don't copy stuff to the store, don't change
the database. */
bool readOnlyMode;
/* The canonical system name, as returned by config.guess. */
extern string thisSystem;
string thisSystem;
/* The maximum time in seconds that a builer can go without producing
any output on stdout/stderr before it is killed. 0 means
infinity. */
extern time_t maxSilentTime;
/* The maximum time in seconds that a builer can go without
producing any output on stdout/stderr before it is killed. 0
means infinity. */
time_t maxSilentTime;
/* The maximum duration in seconds that a builder can run. 0 means
infinity. */
extern time_t buildTimeout;
/* The maximum duration in seconds that a builder can run. 0
means infinity. */
time_t buildTimeout;
/* The substituters. There are programs that can somehow realise a
store path without building, e.g., by downloading it or copying it
from a CD. */
extern Paths substituters;
/* The substituters. There are programs that can somehow realise
a store path without building, e.g., by downloading it or
copying it from a CD. */
Paths substituters;
/* Whether to use build hooks (for distributed builds). Sometimes
users want to disable this from the command-line. */
extern bool useBuildHook;
bool useBuildHook;
/* Whether buildDerivations() should print out lines on stderr in a
fixed format to allow its progress to be monitored. Each line
starts with a "@". The following are defined:
/* Whether buildDerivations() should print out lines on stderr in
a fixed format to allow its progress to be monitored. Each
line starts with a "@". The following are defined:
@ build-started <drvpath> <outpath> <system> <logfile>
@ build-failed <drvpath> <outpath> <exitcode> <error text>
@ -96,24 +110,83 @@ extern bool useBuildHook;
@ substituter-succeeded <outpath>
Best combined with --no-build-output, otherwise stderr might
conceivably contain lines in this format printed by the builders.
*/
extern bool printBuildTrace;
conceivably contain lines in this format printed by the
builders. */
bool printBuildTrace;
/* Amount of reserved space for the garbage collector
(/nix/var/nix/db/reserved). */
off_t reservedSize;
/* Whether SQLite should use fsync. */
bool fsyncMetadata;
/* Whether SQLite should use WAL mode. */
bool useSQLiteWAL;
/* Whether to call sync() before registering a path as valid. */
bool syncBeforeRegistering;
/* Whether to use substitutes. */
bool useSubstitutes;
/* The Unix group that contains the build users. */
string buildUsersGroup;
/* Whether to build in chroot. */
bool useChroot;
/* The directories from the host filesystem to be included in the
chroot. */
PathSet dirsInChroot;
/* Whether to impersonate a Linux 2.6 machine on newer kernels. */
bool impersonateLinux26;
/* Whether to store build logs. */
bool keepLog;
/* Whether to compress logs. */
bool compressLog;
/* Whether to cache build failures. */
bool cacheFailure;
/* How often (in seconds) to poll for locks. */
unsigned int pollInterval;
/* Whether to check if new GC roots can in fact be found by the
garbage collector. */
bool checkRootReachability;
/* Whether the garbage collector should keep outputs of live
derivations. */
bool gcKeepOutputs;
/* Whether the garbage collector should keep derivers of live
paths. */
bool gcKeepDerivations;
/* Whether to automatically replace files with identical contents
with hard links. */
bool autoOptimiseStore;
/* Whether to add derivations as a dependency of user environments
(to prevent them from being GCed). */
bool envKeepDerivations;
private:
SettingsMap settings, overrides;
void get(string & res, const string & name);
void get(bool & res, const string & name);
void get(PathSet & res, const string & name);
template<class N> void get(N & res, const string & name);
};
Strings querySetting(const string & name, const Strings & def);
string querySetting(const string & name, const string & def);
bool queryBoolSetting(const string & name, bool def);
unsigned int queryIntSetting(const string & name, unsigned int def);
void overrideSetting(const string & name, const Strings & value);
void reloadSettings();
void setDefaultsFromEnvironment();
// FIXME: don't use a global variable.
extern Settings settings;
}

148
src/libstore/local-store.cc
View file

@ -181,7 +181,7 @@ struct SQLiteTxn
void checkStoreNotSymlink()
{
if (getEnv("NIX_IGNORE_SYMLINK_STORE") == "1") return;
Path path = nixStore;
Path path = settings.nixStore;
struct stat st;
while (path != "/") {
if (lstat(path.c_str(), &st))
@ -198,23 +198,21 @@ void checkStoreNotSymlink()
LocalStore::LocalStore(bool reserveSpace)
{
substitutablePathsLoaded = false;
schemaPath = settings.nixDBPath + "/schema";
schemaPath = nixDBPath + "/schema";
if (readOnlyMode) {
if (settings.readOnlyMode) {
openDB(false);
return;
}
/* Create missing state directories if they don't already exist. */
createDirs(nixStore);
createDirs(linksDir = nixStore + "/.links");
Path profilesDir = nixStateDir + "/profiles";
createDirs(nixStateDir + "/profiles");
createDirs(nixStateDir + "/temproots");
createDirs(nixDBPath);
Path gcRootsDir = nixStateDir + "/gcroots";
createDirs(settings.nixStore);
createDirs(linksDir = settings.nixStore + "/.links");
Path profilesDir = settings.nixStateDir + "/profiles";
createDirs(settings.nixStateDir + "/profiles");
createDirs(settings.nixStateDir + "/temproots");
createDirs(settings.nixDBPath);
Path gcRootsDir = settings.nixStateDir + "/gcroots";
if (!pathExists(gcRootsDir)) {
createDirs(gcRootsDir);
if (symlink(profilesDir.c_str(), (gcRootsDir + "/profiles").c_str()) == -1)
@ -228,13 +226,12 @@ LocalStore::LocalStore(bool reserveSpace)
needed, we reserve some dummy space that we can free just
before doing a garbage collection. */
try {
Path reservedPath = nixDBPath + "/reserved";
Path reservedPath = settings.nixDBPath + "/reserved";
if (reserveSpace) {
int reservedSize = queryIntSetting("gc-reserved-space", 1024 * 1024);
struct stat st;
if (stat(reservedPath.c_str(), &st) == -1 ||
st.st_size != reservedSize)
writeFile(reservedPath, string(reservedSize, 'X'));
st.st_size != settings.reservedSize)
writeFile(reservedPath, string(settings.reservedSize, 'X'));
}
else
deletePath(reservedPath);
@ -244,11 +241,11 @@ LocalStore::LocalStore(bool reserveSpace)
/* Acquire the big fat lock in shared mode to make sure that no
schema upgrade is in progress. */
try {
Path globalLockPath = nixDBPath + "/big-lock";
Path globalLockPath = settings.nixDBPath + "/big-lock";
globalLock = openLockFile(globalLockPath.c_str(), true);
} catch (SysError & e) {
if (e.errNo != EACCES) throw;
readOnlyMode = true;
settings.readOnlyMode = true;
openDB(false);
return;
}
@ -327,7 +324,7 @@ int LocalStore::getSchema()
void LocalStore::openDB(bool create)
{
/* Open the Nix database. */
if (sqlite3_open_v2((nixDBPath + "/db.sqlite").c_str(), &db.db,
if (sqlite3_open_v2((settings.nixDBPath + "/db.sqlite").c_str(), &db.db,
SQLITE_OPEN_READWRITE | (create ? SQLITE_OPEN_CREATE : 0), 0) != SQLITE_OK)
throw Error("cannot open SQLite database");
@ -344,13 +341,13 @@ void LocalStore::openDB(bool create)
should be safe enough. If the user asks for it, don't sync at
all. This can cause database corruption if the system
crashes. */
string syncMode = queryBoolSetting("fsync-metadata", true) ? "normal" : "off";
string syncMode = settings.fsyncMetadata ? "normal" : "off";
if (sqlite3_exec(db, ("pragma synchronous = " + syncMode + ";").c_str(), 0, 0, 0) != SQLITE_OK)
throwSQLiteError(db, "setting synchronous mode");
/* Set the SQLite journal mode. WAL mode is fastest, so it's the
default. */
string mode = queryBoolSetting("use-sqlite-wal", true) ? "wal" : "truncate";
string mode = settings.useSQLiteWAL ? "wal" : "truncate";
string prevMode;
{
SQLiteStmt stmt;
@ -756,7 +753,16 @@ bool LocalStore::isValidPath(const Path & path)
}
PathSet LocalStore::queryValidPaths()
PathSet LocalStore::queryValidPaths(const PathSet & paths)
{
PathSet res;
foreach (PathSet::const_iterator, i, paths)
if (isValidPath(*i)) res.insert(*i);
return res;
}
PathSet LocalStore::queryAllValidPaths()
{
SQLiteStmt stmt;
stmt.create(db, "select path from ValidPaths");
@ -883,7 +889,7 @@ Path LocalStore::queryPathFromHashPart(const string & hashPart)
SQLiteTxn txn(db);
Path prefix = nixStore + "/" + hashPart;
Path prefix = settings.nixStore + "/" + hashPart;
SQLiteStmtUse use(stmtQueryPathFromHashPart);
stmtQueryPathFromHashPart.bind(prefix);
@ -903,10 +909,11 @@ void LocalStore::startSubstituter(const Path & substituter, RunningSubstituter &
debug(format("starting substituter program `%1%'") % substituter);
Pipe toPipe, fromPipe;
Pipe toPipe, fromPipe, errorPipe;
toPipe.create();
fromPipe.create();
errorPipe.create();
run.pid = fork();
@ -924,12 +931,18 @@ void LocalStore::startSubstituter(const Path & substituter, RunningSubstituter &
written in Perl (i.e. all of them) fail. */
unsetenv("DYLD_LIBRARY_PATH");
/* Pass configuration options (including those overriden
with --option) to the substituter. */
setenv("_NIX_OPTIONS", settings.pack().c_str(), 1);
fromPipe.readSide.close();
toPipe.writeSide.close();
if (dup2(toPipe.readSide, STDIN_FILENO) == -1)
throw SysError("dupping stdin");
if (dup2(fromPipe.writeSide, STDOUT_FILENO) == -1)
throw SysError("dupping stdout");
if (dup2(errorPipe.writeSide, STDERR_FILENO) == -1)
throw SysError("dupping stderr");
closeMostFDs(set<int>());
execl(substituter.c_str(), substituter.c_str(), "--query", NULL);
throw SysError(format("executing `%1%'") % substituter);
@ -943,6 +956,7 @@ void LocalStore::startSubstituter(const Path & substituter, RunningSubstituter &
run.to = toPipe.writeSide.borrow();
run.from = fromPipe.readSide.borrow();
run.error = errorPipe.readSide.borrow();
}
@ -955,29 +969,54 @@ template<class T> T getIntLine(int fd)
}
bool LocalStore::hasSubstitutes(const Path & path)
PathSet LocalStore::querySubstitutablePaths(const PathSet & paths)
{
foreach (Paths::iterator, i, substituters) {
PathSet res;
foreach (Paths::iterator, i, settings.substituters) {
if (res.size() == paths.size()) break;
RunningSubstituter & run(runningSubstituters[*i]);
startSubstituter(*i, run);
writeLine(run.to, "have\n" + path);
if (getIntLine<int>(run.from)) return true;
string s = "have ";
foreach (PathSet::const_iterator, j, paths)
if (res.find(*j) == res.end()) { s += *j; s += " "; }
writeLine(run.to, s);
while (true) {
/* FIXME: we only read stderr when an error occurs, so
substituters should only write (short) messages to
stderr when they fail. I.e. they shouldn't write debug
output. */
try {
Path path = readLine(run.from);
if (path == "") break;
res.insert(path);
} catch (EndOfFile e) {
throw Error(format("substituter `%1%' failed: %2%") % *i % chomp(drainFD(run.error)));
}
return false;
}
}
return res;
}
bool LocalStore::querySubstitutablePathInfo(const Path & substituter,
const Path & path, SubstitutablePathInfo & info)
void LocalStore::querySubstitutablePathInfos(const Path & substituter,
PathSet & paths, SubstitutablePathInfos & infos)
{
RunningSubstituter & run(runningSubstituters[substituter]);
startSubstituter(substituter, run);
writeLine(run.to, "info\n" + path);
if (!getIntLine<int>(run.from)) return false;
string s = "info ";
foreach (PathSet::const_iterator, i, paths)
if (infos.find(*i) == infos.end()) { s += *i; s += " "; }
writeLine(run.to, s);
while (true) {
try {
Path path = readLine(run.from);
if (path == "") break;
if (paths.find(path) == paths.end())
throw Error(format("got unexpected path `%1%' from substituter") % path);
paths.erase(path);
SubstitutablePathInfo & info(infos[path]);
info.deriver = readLine(run.from);
if (info.deriver != "") assertStorePath(info.deriver);
int nrRefs = getIntLine<int>(run.from);
@ -988,17 +1027,21 @@ bool LocalStore::querySubstitutablePathInfo(const Path & substituter,
}
info.downloadSize = getIntLine<long long>(run.from);
info.narSize = getIntLine<long long>(run.from);
return true;
} catch (EndOfFile e) {
throw Error(format("substituter `%1%' failed: %2%") % substituter % chomp(drainFD(run.error)));
}
}
}
bool LocalStore::querySubstitutablePathInfo(const Path & path,
SubstitutablePathInfo & info)
void LocalStore::querySubstitutablePathInfos(const PathSet & paths,
SubstitutablePathInfos & infos)
{
foreach (Paths::iterator, i, substituters)
if (querySubstitutablePathInfo(*i, path, info)) return true;
return false;
PathSet todo = paths;
foreach (Paths::iterator, i, settings.substituters) {
if (todo.empty()) break;
querySubstitutablePathInfos(*i, todo, infos);
}
}
@ -1018,11 +1061,10 @@ void LocalStore::registerValidPath(const ValidPathInfo & info)
void LocalStore::registerValidPaths(const ValidPathInfos & infos)
{
/* sqlite will fsync by default, but the new valid paths may not be fsync-ed.
/* SQLite will fsync by default, but the new valid paths may not be fsync-ed.
* So some may want to fsync them before registering the validity, at the
* expense of some speed of the path registering operation. */
if (queryBoolSetting("sync-before-registering", false))
sync();
if (settings.syncBeforeRegistering) sync();
while (1) {
try {
@ -1266,7 +1308,7 @@ void LocalStore::exportPath(const Path & path, bool sign,
Path hashFile = tmpDir + "/hash";
writeFile(hashFile, printHash(hash));
Path secretKey = nixConfDir + "/signing-key.sec";
Path secretKey = settings.nixConfDir + "/signing-key.sec";
checkSecrecy(secretKey);
Strings args;
@ -1312,7 +1354,7 @@ Path LocalStore::createTempDirInStore()
/* There is a slight possibility that `tmpDir' gets deleted by
the GC between createTempDir() and addTempRoot(), so repeat
until `tmpDir' exists. */
tmpDir = createTempDir(nixStore);
tmpDir = createTempDir(settings.nixStore);
addTempRoot(tmpDir);
} while (!pathExists(tmpDir));
return tmpDir;
@ -1364,7 +1406,7 @@ Path LocalStore::importPath(bool requireSignature, Source & source)
args.push_back("rsautl");
args.push_back("-verify");
args.push_back("-inkey");
args.push_back(nixConfDir + "/signing-key.pub");
args.push_back(settings.nixConfDir + "/signing-key.pub");
args.push_back("-pubin");
args.push_back("-in");
args.push_back(sigFile);
@ -1473,13 +1515,13 @@ void LocalStore::verifyStore(bool checkContents)
/* Acquire the global GC lock to prevent a garbage collection. */
AutoCloseFD fdGCLock = openGCLock(ltWrite);
Paths entries = readDirectory(nixStore);
Paths entries = readDirectory(settings.nixStore);
PathSet store(entries.begin(), entries.end());
/* Check whether all valid paths actually exist. */
printMsg(lvlInfo, "checking path existence...");
PathSet validPaths2 = queryValidPaths(), validPaths, done;
PathSet validPaths2 = queryAllValidPaths(), validPaths, done;
foreach (PathSet::iterator, i, validPaths2)
verifyPath(*i, store, done, validPaths);
@ -1583,9 +1625,9 @@ void LocalStore::verifyPath(const Path & path, const PathSet & store,
PathSet LocalStore::queryValidPathsOld()
{
PathSet paths;
Strings entries = readDirectory(nixDBPath + "/info");
Strings entries = readDirectory(settings.nixDBPath + "/info");
foreach (Strings::iterator, i, entries)
if (i->at(0) != '.') paths.insert(nixStore + "/" + *i);
if (i->at(0) != '.') paths.insert(settings.nixStore + "/" + *i);
return paths;
}
@ -1597,7 +1639,7 @@ ValidPathInfo LocalStore::queryPathInfoOld(const Path & path)
/* Read the info file. */
string baseName = baseNameOf(path);
Path infoFile = (format("%1%/info/%2%") % nixDBPath % baseName).str();
Path infoFile = (format("%1%/info/%2%") % settings.nixDBPath % baseName).str();
if (!pathExists(infoFile))
throw Error(format("path `%1%' is not valid") % path);
string info = readFile(infoFile);

24
src/libstore/local-store.hh
View file

@ -45,7 +45,7 @@ struct OptimiseStats
struct RunningSubstituter
{
Pid pid;
AutoCloseFD to, from;
AutoCloseFD to, from, error;
};
@ -80,9 +80,6 @@ struct SQLiteStmt
class LocalStore : public StoreAPI
{
private:
bool substitutablePathsLoaded;
PathSet substitutablePaths;
typedef std::map<Path, RunningSubstituter> RunningSubstituters;
RunningSubstituters runningSubstituters;
@ -100,7 +97,9 @@ public:
bool isValidPath(const Path & path);
PathSet queryValidPaths();
PathSet queryValidPaths(const PathSet & paths);
PathSet queryAllValidPaths();
ValidPathInfo queryPathInfo(const Path & path);
@ -124,15 +123,13 @@ public:
Path queryPathFromHashPart(const string & hashPart);
PathSet querySubstitutablePaths();
PathSet querySubstitutablePaths(const PathSet & paths);
bool hasSubstitutes(const Path & path);
void querySubstitutablePathInfos(const Path & substituter,
PathSet & paths, SubstitutablePathInfos & infos);
bool querySubstitutablePathInfo(const Path & path,
SubstitutablePathInfo & info);
bool querySubstitutablePathInfo(const Path & substituter,
const Path & path, SubstitutablePathInfo & info);
void querySubstitutablePathInfos(const PathSet & paths,
SubstitutablePathInfos & infos);
Path addToStore(const Path & srcPath,
bool recursive = true, HashType hashAlgo = htSHA256,
@ -293,9 +290,6 @@ void canonicalisePathMetaData(const Path & path, bool recurse);
MakeError(PathInUse, Error);
/* Whether we are in build users mode. */
bool haveBuildUsers();
/* Whether we are root. */
bool amPrivileged();

96
src/libstore/misc.cc
View file

@ -55,45 +55,95 @@ void queryMissing(StoreAPI & store, const PathSet & targets,
PathSet todo(targets.begin(), targets.end()), done;
while (!todo.empty()) {
Path p = *(todo.begin());
todo.erase(p);
if (done.find(p) != done.end()) continue;
done.insert(p);
/* Getting substitute info has high latency when using the binary
cache substituter. Thus it's essential to do substitute
queries in parallel as much as possible. To accomplish this
we do the following:
if (isDerivation(p)) {
if (!store.isValidPath(p)) {
unknown.insert(p);
- For all paths still to be processed (‘todo’), we add all
paths for which we need info to the set ‘query’. For an
unbuilt derivation this is the output paths; otherwise, it's
the path itself.
- We get info about all paths in ‘query’ in parallel.
- We process the results and add new items to ‘todo’ if
necessary. E.g. if a path is substitutable, then we need to
get info on its references.
- Repeat until ‘todo’ is empty.
*/
while (!todo.empty()) {
PathSet query, todoDrv, todoNonDrv;
foreach (PathSet::iterator, i, todo) {
if (done.find(*i) != done.end()) continue;
done.insert(*i);
if (isDerivation(*i)) {
if (!store.isValidPath(*i)) {
// FIXME: we could try to substitute p.
unknown.insert(*i);
continue;
}
Derivation drv = derivationFromPath(store, p);
Derivation drv = derivationFromPath(store, *i);
PathSet invalid;
foreach (DerivationOutputs::iterator, j, drv.outputs)
if (!store.isValidPath(j->second.path)) invalid.insert(j->second.path);
if (invalid.empty()) continue;
todoDrv.insert(*i);
if (settings.useSubstitutes) query.insert(invalid.begin(), invalid.end());
}
else {
if (store.isValidPath(*i)) continue;
query.insert(*i);
todoNonDrv.insert(*i);
}
}
todo.clear();
SubstitutablePathInfos infos;
store.querySubstitutablePathInfos(query, infos);
foreach (PathSet::iterator, i, todoDrv) {
// FIXME: cache this
Derivation drv = derivationFromPath(store, *i);
bool mustBuild = false;
foreach (DerivationOutputs::iterator, i, drv.outputs)
if (!store.isValidPath(i->second.path) &&
!(queryBoolSetting("build-use-substitutes", true) && store.hasSubstitutes(i->second.path)))
if (settings.useSubstitutes) {
foreach (DerivationOutputs::iterator, j, drv.outputs)
if (!store.isValidPath(j->second.path) &&
infos.find(j->second.path) == infos.end())
mustBuild = true;
} else
mustBuild = true;
if (mustBuild) {
willBuild.insert(p);
willBuild.insert(*i);
todo.insert(drv.inputSrcs.begin(), drv.inputSrcs.end());
foreach (DerivationInputs::iterator, i, drv.inputDrvs)
todo.insert(i->first);
} else
foreach (DerivationOutputs::iterator, i, drv.outputs)
todo.insert(i->second.path);
todoNonDrv.insert(i->second.path);
}
else {
if (store.isValidPath(p)) continue;
SubstitutablePathInfo info;
if (store.querySubstitutablePathInfo(p, info)) {
willSubstitute.insert(p);
downloadSize += info.downloadSize;
narSize += info.narSize;
todo.insert(info.references.begin(), info.references.end());
foreach (PathSet::iterator, i, todoNonDrv) {
done.insert(*i);
SubstitutablePathInfos::iterator info = infos.find(*i);
if (info != infos.end()) {
willSubstitute.insert(*i);
downloadSize += info->second.downloadSize;
narSize += info->second.narSize;
todo.insert(info->second.references.begin(), info->second.references.end());
} else
unknown.insert(p);
unknown.insert(*i);
}
}
}

8
src/libstore/optimise-store.cc
View file

@ -149,7 +149,7 @@ void LocalStore::optimisePath_(OptimiseStats & stats, const Path & path)
MakeImmutable mk1(linkPath);
Path tempLink = (format("%1%/.tmp-link-%2%-%3%")
% nixStore % getpid() % rand()).str();
% settings.nixStore % getpid() % rand()).str();
if (link(linkPath.c_str(), tempLink.c_str()) == -1) {
if (errno == EMLINK) {
@ -194,7 +194,7 @@ void LocalStore::optimisePath_(OptimiseStats & stats, const Path & path)
void LocalStore::optimiseStore(OptimiseStats & stats)
{
PathSet paths = queryValidPaths();
PathSet paths = queryAllValidPaths();
foreach (PathSet::iterator, i, paths) {
addTempRoot(*i);
@ -207,10 +207,8 @@ void LocalStore::optimiseStore(OptimiseStats & stats)
void LocalStore::optimisePath(const Path & path)
{
if (queryBoolSetting("auto-optimise-store", true)) {
OptimiseStats stats;
optimisePath_(stats, path);
}
if (settings.autoOptimiseStore) optimisePath_(stats, path);
}

110
src/libstore/remote-store.cc
View file

@ -100,7 +100,7 @@ void RemoteStore::forkSlave()
/* Start the worker. */
Path worker = getEnv("NIX_WORKER");
if (worker == "")
worker = nixBinDir + "/nix-worker";
worker = settings.nixBinDir + "/nix-worker";
child = fork();
@ -142,7 +142,7 @@ void RemoteStore::connectToDaemon()
if (fdSocket == -1)
throw SysError("cannot create Unix domain socket");
string socketPath = nixStateDir + DEFAULT_SOCKET_PATH;
string socketPath = settings.nixStateDir + DEFAULT_SOCKET_PATH;
/* Urgh, sockaddr_un allows path names of only 108 characters. So
chdir to the socket directory so that we can pass a relative
@ -184,23 +184,33 @@ RemoteStore::~RemoteStore()
void RemoteStore::setOptions()
{
writeInt(wopSetOptions, to);
writeInt(keepFailed, to);
writeInt(keepGoing, to);
writeInt(tryFallback, to);
writeInt(settings.keepFailed, to);
writeInt(settings.keepGoing, to);
writeInt(settings.tryFallback, to);
writeInt(verbosity, to);
writeInt(maxBuildJobs, to);
writeInt(maxSilentTime, to);
writeInt(settings.maxBuildJobs, to);
writeInt(settings.maxSilentTime, to);
if (GET_PROTOCOL_MINOR(daemonVersion) >= 2)
writeInt(useBuildHook, to);
writeInt(settings.useBuildHook, to);
if (GET_PROTOCOL_MINOR(daemonVersion) >= 4) {
writeInt(buildVerbosity, to);
writeInt(settings.buildVerbosity, to);
writeInt(logType, to);
writeInt(printBuildTrace, to);
writeInt(settings.printBuildTrace, to);
}
if (GET_PROTOCOL_MINOR(daemonVersion) >= 6)
writeInt(buildCores, to);
writeInt(settings.buildCores, to);
if (GET_PROTOCOL_MINOR(daemonVersion) >= 10)
writeInt(queryBoolSetting("build-use-substitutes", true), to);
writeInt(settings.useSubstitutes, to);
if (GET_PROTOCOL_MINOR(daemonVersion) >= 12) {
Settings::SettingsMap overrides = settings.getOverrides();
writeInt(overrides.size(), to);
foreach (Settings::SettingsMap::iterator, i, overrides) {
writeString(i->first, to);
writeString(i->second, to);
}
}
processStderr();
}
@ -217,42 +227,96 @@ bool RemoteStore::isValidPath(const Path & path)
}
PathSet RemoteStore::queryValidPaths()
PathSet RemoteStore::queryValidPaths(const PathSet & paths)
{
openConnection();
if (GET_PROTOCOL_MINOR(daemonVersion) < 12) {
PathSet res;
foreach (PathSet::const_iterator, i, paths)
if (isValidPath(*i)) res.insert(*i);
return res;
} else {
writeInt(wopQueryValidPaths, to);
writeStrings(paths, to);
processStderr();
return readStorePaths<PathSet>(from);
}
}
PathSet RemoteStore::queryAllValidPaths()
{
openConnection();
writeInt(wopQueryAllValidPaths, to);
processStderr();
return readStorePaths<PathSet>(from);
}
bool RemoteStore::hasSubstitutes(const Path & path)
PathSet RemoteStore::querySubstitutablePaths(const PathSet & paths)
{
openConnection();
if (GET_PROTOCOL_MINOR(daemonVersion) < 12) {
PathSet res;
foreach (PathSet::const_iterator, i, paths) {
writeInt(wopHasSubstitutes, to);
writeString(path, to);
writeString(*i, to);
processStderr();
unsigned int reply = readInt(from);
return reply != 0;
if (readInt(from)) res.insert(*i);
}
return res;
} else {
writeInt(wopQuerySubstitutablePaths, to);
writeStrings(paths, to);
processStderr();
return readStorePaths<PathSet>(from);
}
}
bool RemoteStore::querySubstitutablePathInfo(const Path & path,
SubstitutablePathInfo & info)
void RemoteStore::querySubstitutablePathInfos(const PathSet & paths,
SubstitutablePathInfos & infos)
{
if (paths.empty()) return;
openConnection();
if (GET_PROTOCOL_MINOR(daemonVersion) < 3) return false;
if (GET_PROTOCOL_MINOR(daemonVersion) < 3) return;
if (GET_PROTOCOL_MINOR(daemonVersion) < 12) {
foreach (PathSet::const_iterator, i, paths) {
SubstitutablePathInfo info;
writeInt(wopQuerySubstitutablePathInfo, to);
writeString(path, to);
writeString(*i, to);
processStderr();
unsigned int reply = readInt(from);
if (reply == 0) return false;
if (reply == 0) continue;
info.deriver = readString(from);
if (info.deriver != "") assertStorePath(info.deriver);
info.references = readStorePaths<PathSet>(from);
info.downloadSize = readLongLong(from);
info.narSize = GET_PROTOCOL_MINOR(daemonVersion) >= 7 ? readLongLong(from) : 0;
return true;
infos[*i] = info;
}
} else {
writeInt(wopQuerySubstitutablePathInfos, to);
writeStrings(paths, to);
processStderr();
unsigned int count = readInt(from);
for (unsigned int n = 0; n < count; n++) {
Path path = readStorePath(from);
SubstitutablePathInfo & info(infos[path]);
info.deriver = readString(from);
if (info.deriver != "") assertStorePath(info.deriver);
info.references = readStorePaths<PathSet>(from);
info.downloadSize = readLongLong(from);
info.narSize = readLongLong(from);
}
}
}

10
src/libstore/remote-store.hh
View file

@ -26,7 +26,9 @@ public:
bool isValidPath(const Path & path);
PathSet queryValidPaths();
PathSet queryValidPaths(const PathSet & paths);
PathSet queryAllValidPaths();
ValidPathInfo queryPathInfo(const Path & path);
@ -44,10 +46,10 @@ public:
Path queryPathFromHashPart(const string & hashPart);
bool hasSubstitutes(const Path & path);
PathSet querySubstitutablePaths(const PathSet & paths);
bool querySubstitutablePathInfo(const Path & path,
SubstitutablePathInfo & info);
void querySubstitutablePathInfos(const PathSet & paths,
SubstitutablePathInfos & infos);
Path addToStore(const Path & srcPath,
bool recursive = true, HashType hashAlgo = htSHA256,

16
src/libstore/store-api.cc
View file

@ -19,16 +19,16 @@ GCOptions::GCOptions()
bool isInStore(const Path & path)
{
return path[0] == '/'
&& string(path, 0, nixStore.size()) == nixStore
&& path.size() >= nixStore.size() + 2
&& path[nixStore.size()] == '/';
&& string(path, 0, settings.nixStore.size()) == settings.nixStore
&& path.size() >= settings.nixStore.size() + 2
&& path[settings.nixStore.size()] == '/';
}
bool isStorePath(const Path & path)
{
return isInStore(path)
&& path.find('/', nixStore.size() + 1) == Path::npos;
&& path.find('/', settings.nixStore.size() + 1) == Path::npos;
}
@ -43,7 +43,7 @@ Path toStorePath(const Path & path)
{
if (!isInStore(path))
throw Error(format("path `%1%' is not in the Nix store") % path);
Path::size_type slash = path.find('/', nixStore.size() + 1);
Path::size_type slash = path.find('/', settings.nixStore.size() + 1);
if (slash == Path::npos)
return path;
else
@ -74,7 +74,7 @@ Path followLinksToStorePath(const Path & path)
string storePathToName(const Path & path)
{
assertStorePath(path);
return string(path, nixStore.size() + 34);
return string(path, settings.nixStore.size() + 34);
}
@ -173,11 +173,11 @@ Path makeStorePath(const string & type,
{
/* e.g., "source:sha256:1abc...:/nix/store:foo.tar.gz" */
string s = type + ":sha256:" + printHash(hash) + ":"
+ nixStore + ":" + name;
+ settings.nixStore + ":" + name;
checkStoreName(name);
return nixStore + "/"
return settings.nixStore + "/"
+ printHash32(compressHash(hashString(htSHA256, s), 20))
+ "-" + name;
}

30
src/libstore/store-api.hh
View file

@ -80,6 +80,8 @@ struct SubstitutablePathInfo
unsigned long long narSize; /* 0 = unknown */
};
typedef std::map<Path, SubstitutablePathInfo> SubstitutablePathInfos;
struct ValidPathInfo
{
@ -102,20 +104,23 @@ public:
virtual ~StoreAPI() { }
/* Checks whether a path is valid. */
/* Check whether a path is valid. */
virtual bool isValidPath(const Path & path) = 0;
/* Query the set of valid paths. */
virtual PathSet queryValidPaths() = 0;
/* Query which of the given paths is valid. */
virtual PathSet queryValidPaths(const PathSet & paths) = 0;
/* Query the set of all valid paths. */
virtual PathSet queryAllValidPaths() = 0;
/* Query information about a valid path. */
virtual ValidPathInfo queryPathInfo(const Path & path) = 0;
/* Queries the hash of a valid path. */
/* Query the hash of a valid path. */
virtual Hash queryPathHash(const Path & path) = 0;
/* Queries the set of outgoing FS references for a store path.
The result is not cleared. */
/* Query the set of outgoing FS references for a store path. The
result is not cleared. */
virtual void queryReferences(const Path & path,
PathSet & references) = 0;
@ -138,13 +143,14 @@ public:
path, or "" if the path doesn't exist. */
virtual Path queryPathFromHashPart(const string & hashPart) = 0;
/* Query whether a path has substitutes. */
virtual bool hasSubstitutes(const Path & path) = 0;
/* Query which of the given paths have substitutes. */
virtual PathSet querySubstitutablePaths(const PathSet & paths) = 0;
/* Query the references, deriver and download size of a
substitutable path. */
virtual bool querySubstitutablePathInfo(const Path & path,
SubstitutablePathInfo & info) = 0;
/* Query substitute info (i.e. references, derivers and download
sizes) of a set of paths. If a path does not have substitute
info, it's omitted from the resulting ‘infos’ map. */
virtual void querySubstitutablePathInfos(const PathSet & paths,
SubstitutablePathInfos & infos) = 0;
/* Copy the contents of a path to the store and register the
validity the resulting path. The resulting path is returned.

7
src/libstore/worker-protocol.hh
View file

@ -6,7 +6,7 @@ namespace nix {
#define WORKER_MAGIC_1 0x6e697863
#define WORKER_MAGIC_2 0x6478696f
#define PROTOCOL_VERSION 0x10b
#define PROTOCOL_VERSION 0x10c
#define GET_PROTOCOL_MAJOR(x) ((x) & 0xff00)
#define GET_PROTOCOL_MINOR(x) ((x) & 0x00ff)
@ -32,13 +32,16 @@ typedef enum {
wopCollectGarbage = 20,
wopQuerySubstitutablePathInfo = 21,
wopQueryDerivationOutputs = 22,
wopQueryValidPaths = 23,
wopQueryAllValidPaths = 23,
wopQueryFailedPaths = 24,
wopClearFailedPaths = 25,
wopQueryPathInfo = 26,
wopImportPaths = 27,
wopQueryDerivationOutputNames = 28,
wopQueryPathFromHashPart = 29,
wopQuerySubstitutablePathInfos = 30,
wopQueryValidPaths = 31,
wopQuerySubstitutablePaths = 32,
} WorkerOp;

9
src/libutil/util.cc
View file

@ -253,7 +253,7 @@ string readLine(int fd)
if (errno != EINTR)
throw SysError("reading a line");
} else if (rd == 0)
throw Error("unexpected EOF reading a line");
throw EndOfFile("unexpected EOF reading a line");
else {
if (ch == '\n') return s;
s += ch;
@ -1010,6 +1010,13 @@ string concatStringsSep(const string & sep, const Strings & ss)
}
string chomp(const string & s)
{
size_t i = s.find_last_not_of(" \n\r\t");
return i == string::npos ? "" : string(s, 0, i + 1);
}
string statusToString(int status)
{
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {

4
src/libutil/util.hh
View file

@ -294,6 +294,10 @@ Strings tokenizeString(const string & s, const string & separators = " \t\n\r");
string concatStringsSep(const string & sep, const Strings & ss);
/* Remove trailing whitespace from a string. */
string chomp(const string & s);
/* Convert the exit status of a child as returned by wait() into an
error string. */
string statusToString(int status);

53
src/nix-env/nix-env.cc
View file

@ -55,7 +55,6 @@ struct Globals
EvalState state;
bool dryRun;
bool preserveInstalled;
bool keepDerivations;
string forceName;
bool prebuiltOnly;
};
@ -113,6 +112,11 @@ static void getAllExprs(EvalState & state,
StringSet namesSorted(names.begin(), names.end());
foreach (StringSet::iterator, i, namesSorted) {
/* Ignore the manifest.nix used by profiles. This is
necessary to prevent it from showing up in channels (which
are implemented using profiles). */
if (*i == "manifest.nix") continue;
Path path2 = path + "/" + *i;
struct stat st;
@ -211,9 +215,12 @@ static int comparePriorities(EvalState & state,
static bool isPrebuilt(EvalState & state, const DrvInfo & elem)
{
assert(false);
#if 0
return
store->isValidPath(elem.queryOutPath(state)) ||
store->hasSubstitutes(elem.queryOutPath(state));
#endif
}
@ -263,8 +270,8 @@ static DrvInfos filterBySelector(EvalState & state, const DrvInfos & allElems,
if (k != newest.end()) {
d = j->first.system == k->second.first.system ? 0 :
j->first.system == thisSystem ? 1 :
k->second.first.system == thisSystem ? -1 : 0;
j->first.system == settings.thisSystem ? 1 :
k->second.first.system == settings.thisSystem ? -1 : 0;
if (d == 0)
d = comparePriorities(state, j->first, k->second.first);
if (d == 0)
@ -495,7 +502,7 @@ static void installDerivations(Globals & globals,
if (globals.dryRun) return;
if (createUserEnv(globals.state, allElems,
profile, globals.keepDerivations, lockToken)) break;
profile, settings.envKeepDerivations, lockToken)) break;
}
}
@ -602,7 +609,7 @@ static void upgradeDerivations(Globals & globals,
if (globals.dryRun) return;
if (createUserEnv(globals.state, newElems,
globals.profile, globals.keepDerivations, lockToken)) break;
globals.profile, settings.envKeepDerivations, lockToken)) break;
}
}
@ -669,7 +676,7 @@ static void opSetFlag(Globals & globals,
/* Write the new user environment. */
if (createUserEnv(globals.state, installedElems,
globals.profile, globals.keepDerivations, lockToken)) break;
globals.profile, settings.envKeepDerivations, lockToken)) break;
}
}
@ -737,7 +744,7 @@ static void uninstallDerivations(Globals & globals, Strings & selectors,
if (globals.dryRun) return;
if (createUserEnv(globals.state, newElems,
profile, globals.keepDerivations, lockToken)) break;
profile, settings.envKeepDerivations, lockToken)) break;
}
}
@ -866,7 +873,7 @@ static void opQuery(Globals & globals,
enum { sInstalled, sAvailable } source = sInstalled;
readOnlyMode = true; /* makes evaluation a bit faster */
settings.readOnlyMode = true; /* makes evaluation a bit faster */
for (Strings::iterator i = args.begin(); i != args.end(); ) {
string arg = *i++;
@ -930,6 +937,22 @@ static void opQuery(Globals & globals,
}
/* Query which paths have substitutes. */
PathSet validPaths, substitutablePaths;
if (printStatus) {
PathSet paths;
foreach (vector<DrvInfo>::iterator, i, elems2)
try {
paths.insert(i->queryOutPath(globals.state));
} catch (AssertionError & e) {
printMsg(lvlTalkative, format("skipping derivation named `%1%' which gives an assertion failure") % i->name);
i->setFailed();
}
validPaths = store->queryValidPaths(paths);
substitutablePaths = store->querySubstitutablePaths(paths);
}
/* Print the desired columns, or XML output. */
Table table;
std::ostringstream dummy;
@ -938,6 +961,8 @@ static void opQuery(Globals & globals,
foreach (vector<DrvInfo>::iterator, i, elems2) {
try {
if (i->hasFailed()) continue;
startNest(nest, lvlDebug, format("outputting query result `%1%'") % i->attrPath);
if (globals.prebuiltOnly && !isPrebuilt(globals.state, *i)) continue;
@ -949,9 +974,10 @@ static void opQuery(Globals & globals,
XMLAttrs attrs;
if (printStatus) {
bool hasSubs = store->hasSubstitutes(i->queryOutPath(globals.state));
bool isInstalled = installed.find(i->queryOutPath(globals.state)) != installed.end();
bool isValid = store->isValidPath(i->queryOutPath(globals.state));
Path outPath = i->queryOutPath(globals.state);
bool hasSubs = substitutablePaths.find(outPath) != substitutablePaths.end();
bool isInstalled = installed.find(outPath) != installed.end();
bool isValid = validPaths.find(outPath) != validPaths.end();
if (xmlOutput) {
attrs["installed"] = isInstalled ? "1" : "0";
attrs["valid"] = isValid ? "1" : "0";
@ -1240,9 +1266,6 @@ void run(Strings args)
globals.preserveInstalled = false;
globals.prebuiltOnly = false;
globals.keepDerivations =
queryBoolSetting("env-keep-derivations", false);
for (Strings::iterator i = args.begin(); i != args.end(); ) {
string arg = *i++;
@ -1309,7 +1332,7 @@ void run(Strings args)
Path profileLink = getHomeDir() + "/.nix-profile";
globals.profile = pathExists(profileLink)
? absPath(readLink(profileLink), dirOf(profileLink))
: canonPath(nixStateDir + "/profiles/default");
: canonPath(settings.nixStateDir + "/profiles/default");
}
store = openStore();

4
src/nix-instantiate/nix-instantiate.cc
View file

@ -96,11 +96,11 @@ void run(Strings args)
if (arg == "-")
readStdin = true;
else if (arg == "--eval-only") {
readOnlyMode = true;
settings.readOnlyMode = true;
evalOnly = true;
}
else if (arg == "--parse-only") {
readOnlyMode = true;
settings.readOnlyMode = true;
parseOnly = evalOnly = true;
}
else if (arg == "--find-file")

4
src/nix-store/nix-store.cc
View file

@ -432,7 +432,7 @@ static void opReadLog(Strings opFlags, Strings opArgs)
Path path = useDeriver(followLinksToStorePath(*i));
Path logPath = (format("%1%/%2%/%3%") %
nixLogDir % drvsLogDir % baseNameOf(path)).str();
settings.nixLogDir % drvsLogDir % baseNameOf(path)).str();
Path logBz2Path = logPath + ".bz2";
if (pathExists(logPath)) {
@ -469,7 +469,7 @@ static void opDumpDB(Strings opFlags, Strings opArgs)
if (!opFlags.empty()) throw UsageError("unknown flag");
if (!opArgs.empty())
throw UsageError("no arguments expected");
PathSet validPaths = store->queryValidPaths();
PathSet validPaths = store->queryAllValidPaths();
foreach (PathSet::iterator, i, validPaths)
cout << store->makeValidityRegistration(singleton<PathSet>(*i), true, true);
}

100
src/nix-worker/nix-worker.cc
View file

@ -297,12 +297,30 @@ static void performOp(unsigned int clientVersion,
break;
}
case wopQueryValidPaths: {
PathSet paths = readStorePaths<PathSet>(from);
startWork();
PathSet res = store->queryValidPaths(paths);
stopWork();
writeStrings(res, to);
break;
}
case wopHasSubstitutes: {
Path path = readStorePath(from);
startWork();
bool result = store->hasSubstitutes(path);
PathSet res = store->querySubstitutablePaths(singleton<PathSet>(path));
stopWork();
writeInt(result, to);
writeInt(res.find(path) != res.end(), to);
break;
}
case wopQuerySubstitutablePaths: {
PathSet paths = readStorePaths<PathSet>(from);
startWork();
PathSet res = store->querySubstitutablePaths(paths);
stopWork();
writeStrings(res, to);
break;
}
@ -509,26 +527,30 @@ static void performOp(unsigned int clientVersion,
}
case wopSetOptions: {
keepFailed = readInt(from) != 0;
keepGoing = readInt(from) != 0;
tryFallback = readInt(from) != 0;
settings.keepFailed = readInt(from) != 0;
settings.keepGoing = readInt(from) != 0;
settings.tryFallback = readInt(from) != 0;
verbosity = (Verbosity) readInt(from);
maxBuildJobs = readInt(from);
maxSilentTime = readInt(from);
settings.maxBuildJobs = readInt(from);
settings.maxSilentTime = readInt(from);
if (GET_PROTOCOL_MINOR(clientVersion) >= 2)
useBuildHook = readInt(from) != 0;
settings.useBuildHook = readInt(from) != 0;
if (GET_PROTOCOL_MINOR(clientVersion) >= 4) {
buildVerbosity = (Verbosity) readInt(from);
settings.buildVerbosity = (Verbosity) readInt(from);
logType = (LogType) readInt(from);
printBuildTrace = readInt(from) != 0;
settings.printBuildTrace = readInt(from) != 0;
}
if (GET_PROTOCOL_MINOR(clientVersion) >= 6)
buildCores = readInt(from);
if (GET_PROTOCOL_MINOR(clientVersion) >= 10) {
int x = readInt(from);
Strings ss;
ss.push_back(x == 0 ? "false" : "true");
overrideSetting("build-use-substitutes", ss);
settings.buildCores = readInt(from);
if (GET_PROTOCOL_MINOR(clientVersion) >= 10)
settings.useSubstitutes = readInt(from) != 0;
if (GET_PROTOCOL_MINOR(clientVersion) >= 12) {
unsigned int n = readInt(from);
for (unsigned int i = 0; i < n; i++) {
string name = readString(from);
string value = readString(from);
settings.set("untrusted-" + name, value);
}
}
startWork();
stopWork();
@ -538,23 +560,43 @@ static void performOp(unsigned int clientVersion,
case wopQuerySubstitutablePathInfo: {
Path path = absPath(readString(from));
startWork();
SubstitutablePathInfo info;
bool res = store->querySubstitutablePathInfo(path, info);
SubstitutablePathInfos infos;
store->querySubstitutablePathInfos(singleton<PathSet>(path), infos);
stopWork();
writeInt(res ? 1 : 0, to);
if (res) {
writeString(info.deriver, to);
writeStrings(info.references, to);
writeLongLong(info.downloadSize, to);
SubstitutablePathInfos::iterator i = infos.find(path);
if (i == infos.end())
writeInt(0, to);
else {
writeInt(1, to);
writeString(i->second.deriver, to);
writeStrings(i->second.references, to);
writeLongLong(i->second.downloadSize, to);
if (GET_PROTOCOL_MINOR(clientVersion) >= 7)
writeLongLong(info.narSize, to);
writeLongLong(i->second.narSize, to);
}
break;
}
case wopQueryValidPaths: {
case wopQuerySubstitutablePathInfos: {
PathSet paths = readStorePaths<PathSet>(from);
startWork();
PathSet paths = store->queryValidPaths();
SubstitutablePathInfos infos;
store->querySubstitutablePathInfos(paths, infos);
stopWork();
writeInt(infos.size(), to);
foreach (SubstitutablePathInfos::iterator, i, infos) {
writeString(i->first, to);
writeString(i->second.deriver, to);
writeStrings(i->second.references, to);
writeLongLong(i->second.downloadSize, to);
writeLongLong(i->second.narSize, to);
}
break;
}
case wopQueryAllValidPaths: {
startWork();
PathSet paths = store->queryAllValidPaths();
stopWork();
writeStrings(paths, to);
break;
@ -730,7 +772,7 @@ static void daemonLoop()
if (fdSocket == -1)
throw SysError("cannot create Unix domain socket");
string socketPath = nixStateDir + DEFAULT_SOCKET_PATH;
string socketPath = settings.nixStateDir + DEFAULT_SOCKET_PATH;
createDirs(dirOf(socketPath));
@ -829,10 +871,6 @@ static void daemonLoop()
strncpy(argvSaved[1], processName.c_str(), strlen(argvSaved[1]));
}
/* Since the daemon can be long-running, the
settings may have changed. So force a reload. */
reloadSettings();
/* Handle the connection. */
from.fd = remote;
to.fd = remote;

2
substitute.mk
View file

@ -16,11 +16,13 @@
-e "s^@shell\@^$(bash)^g" \
-e "s^@curl\@^$(curl)^g" \
-e "s^@bzip2\@^$(bzip2)^g" \
-e "s^@xz\@^$(xz)^g" \
-e "s^@perl\@^$(perl)^g" \
-e "s^@perlFlags\@^$(perlFlags)^g" \
-e "s^@coreutils\@^$(coreutils)^g" \
-e "s^@sed\@^$(sed)^g" \
-e "s^@tar\@^$(tar)^g" \
-e "s^@tarFlags\@^$(tarFlags)^g" \
-e "s^@gzip\@^$(gzip)^g" \
-e "s^@pv\@^$(pv)^g" \
-e "s^@tr\@^$(tr)^g" \

3
tests/Makefile.am
View file

@ -9,7 +9,8 @@ TESTS = init.sh hash.sh lang.sh add.sh simple.sh dependencies.sh \
gc-runtime.sh install-package.sh check-refs.sh filter-source.sh \
remote-store.sh export.sh export-graph.sh negative-caching.sh \
binary-patching.sh timeout.sh secure-drv-outputs.sh nix-channel.sh \
multiple-outputs.sh import-derivation.sh fetchurl.sh optimise-store.sh
multiple-outputs.sh import-derivation.sh fetchurl.sh optimise-store.sh \
binary-cache.sh
XFAIL_TESTS =

35
tests/binary-cache.sh Normal file
View file

@ -0,0 +1,35 @@
source common.sh
clearStore
# Create the binary cache.
cacheDir=$TEST_ROOT/binary-cache
rm -rf $cacheDir
outPath=$(nix-build dependencies.nix --no-out-link)
nix-push --dest $cacheDir $outPath
# By default, a binary cache doesn't support "nix-env -qas", but does
# support installation.
clearStore
rm -f $NIX_STATE_DIR/binary-cache*
nix-env --option binary-caches "file://$cacheDir" -f dependencies.nix -qas \* | grep -- "---"
nix-store --option binary-caches "file://$cacheDir" -r $outPath
# But with the right configuration, "nix-env -qas" should also work.
clearStore
rm -f $NIX_STATE_DIR/binary-cache*
echo "WantMassQuery: 1" >> $cacheDir/nix-cache-info
nix-env --option binary-caches "file://$cacheDir" -f dependencies.nix -qas \* | grep -- "--S"
nix-store --option binary-caches "file://$cacheDir" -r $outPath
nix-store --check-validity $outPath
nix-store -qR $outPath | grep input-2

9
tests/binary-patching.sh
View file

@ -7,14 +7,17 @@ mkdir -p $TEST_ROOT/cache2 $TEST_ROOT/patches
RESULT=$TEST_ROOT/result
# Build version 1 and 2 of the "foo" package.
nix-push --copy $TEST_ROOT/cache2 $TEST_ROOT/manifest1 \
nix-push --dest $TEST_ROOT/cache2 --manifest --bzip2 \
$(nix-build -o $RESULT binary-patching.nix --arg version 1)
mv $TEST_ROOT/cache2/MANIFEST $TEST_ROOT/manifest1
out2=$(nix-build -o $RESULT binary-patching.nix --arg version 2)
nix-push --copy $TEST_ROOT/cache2 $TEST_ROOT/manifest2 $out2
nix-push --dest $TEST_ROOT/cache2 --manifest --bzip2 $out2
mv $TEST_ROOT/cache2/MANIFEST $TEST_ROOT/manifest2
out3=$(nix-build -o $RESULT binary-patching.nix --arg version 3)
nix-push --copy $TEST_ROOT/cache2 $TEST_ROOT/manifest3 $out3
nix-push --dest $TEST_ROOT/cache2 --manifest --bzip2 $out3
mv $TEST_ROOT/cache2/MANIFEST $TEST_ROOT/manifest3
rm $RESULT

3
tests/common.sh.in
View file

@ -16,6 +16,7 @@ export NIX_DB_DIR=$TEST_ROOT/db
export NIX_CONF_DIR=$TEST_ROOT/etc
export NIX_MANIFESTS_DIR=$TEST_ROOT/var/nix/manifests
export SHARED=$TEST_ROOT/shared
export NIX_REMOTE=$NIX_REMOTE_
export PATH=@bindir@:$PATH
@ -79,3 +80,5 @@ fail() {
echo "$1"
exit 1
}
set -x

2
tests/install-package.sh
View file

@ -9,7 +9,7 @@ clearStore
clearProfiles
cat > $TEST_ROOT/foo.nixpkg <<EOF
NIXPKG1 file://$TEST_ROOT/manifest simple $system $drvPath $outPath
NIXPKG1 file://$TEST_ROOT/cache/MANIFEST simple $system $drvPath $outPath
EOF
nix-install-package --non-interactive -p $profiles/test $TEST_ROOT/foo.nixpkg

2
tests/nix-channel.sh
View file

@ -19,7 +19,7 @@ nix-channel --remove xyzzy
# Create a channel.
rm -rf $TEST_ROOT/foo
mkdir -p $TEST_ROOT/foo
nix-push --copy $TEST_ROOT/foo $TEST_ROOT/foo/MANIFEST $(nix-store -r $(nix-instantiate dependencies.nix))
nix-push --dest $TEST_ROOT/foo --manifest --bzip2 $(nix-store -r $(nix-instantiate dependencies.nix))
rm -rf $TEST_ROOT/nixexprs
mkdir -p $TEST_ROOT/nixexprs
cp config.nix dependencies.nix dependencies.builder*.sh $TEST_ROOT/nixexprs/

2
tests/nix-pull.sh
View file

@ -2,7 +2,7 @@ source common.sh
pullCache () {
echo "pulling cache..."
nix-pull file://$TEST_ROOT/manifest
nix-pull file://$TEST_ROOT/cache/MANIFEST
}
clearStore

4
tests/nix-push.sh
View file

@ -1,5 +1,7 @@
source common.sh
clearStore
drvPath=$(nix-instantiate dependencies.nix)
outPath=$(nix-store -r $drvPath)
@ -7,4 +9,4 @@ echo "pushing $drvPath"
mkdir -p $TEST_ROOT/cache
nix-push --copy $TEST_ROOT/cache $TEST_ROOT/manifest $drvPath
nix-push --dest $TEST_ROOT/cache --manifest $drvPath --bzip2

2
tests/referrers.sh
View file

@ -10,6 +10,7 @@ touch $reference
echo "making registration..."
set +x
for ((n = 0; n < $max; n++)); do
storePath=$NIX_STORE_DIR/$n
echo -n > $storePath
@ -19,6 +20,7 @@ for ((n = 0; n < $max; n++)); do
fi
echo $storePath; echo; echo 2; echo $reference; echo $ref2
done > $TEST_ROOT/reg_info
set -x
echo "registering..."

2
tests/remote-store.sh
View file

@ -3,7 +3,7 @@ source common.sh
echo '*** testing slave mode ***'
clearStore
clearManifests
NIX_REMOTE=slave $SHELL ./user-envs.sh
NIX_REMOTE_=slave $SHELL ./user-envs.sh
echo '*** testing daemon mode ***'
clearStore

18
tests/substituter.sh
View file

@ -2,22 +2,25 @@
echo substituter args: $* >&2
if test $1 = "--query"; then
while read cmd; do
echo FOO $cmd >&2
while read cmd args; do
echo "CMD = $cmd, ARGS = $args" >&2
if test "$cmd" = "have"; then
for path in $args; do
read path
if grep -q "$path" $TEST_ROOT/sub-paths; then
echo 1
else
echo 0
echo $path
fi
done
echo
elif test "$cmd" = "info"; then
read path
echo 1
for path in $args; do
echo $path
echo "" # deriver
echo 0 # nr of refs
echo $((1 * 1024 * 1024)) # download size
echo $((2 * 1024 * 1024)) # nar size
done
echo
else
echo "bad command $cmd"
exit 1
@ -26,6 +29,7 @@ if test $1 = "--query"; then
elif test $1 = "--substitute"; then
mkdir $2
echo "Hallo Wereld" > $2/hello
echo # no expected hash
else
echo "unknown substituter operation"
exit 1

20
tests/substituter2.sh
View file

@ -2,21 +2,23 @@
echo substituter2 args: $* >&2
if test $1 = "--query"; then
while read cmd; do
if test "$cmd" = "have"; then
read path
while read cmd args; do
if test "$cmd" = have; then
for path in $args; do
if grep -q "$path" $TEST_ROOT/sub-paths; then
echo 1
else
echo 0
echo $path
fi
elif test "$cmd" = "info"; then
read path
echo 1
done
echo
elif test "$cmd" = info; then
for path in $args; do
echo $path
echo "" # deriver
echo 0 # nr of refs
echo 0 # download size
echo 0 # nar size
done
echo
else
echo "bad command $cmd"
exit 1