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* Add a test for nix-channel.

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* Refactor the nix-channel unpacker a bit.
This commit is contained in:
Eelco Dolstra 2012-01-03 01:51:38 +00:00
parent dadbb51d96
commit 39d45a6b09
13 changed files with 103 additions and 75 deletions
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3
configure.ac
View file

@ -346,9 +346,6 @@ AC_CONFIG_FILES([Makefile
perl/Makefile
scripts/Makefile
corepkgs/Makefile
corepkgs/nar/Makefile
corepkgs/buildenv/Makefile
corepkgs/channels/Makefile
doc/Makefile
doc/manual/Makefile
misc/Makefile

8
corepkgs/Makefile.am
View file

@ -1,11 +1,11 @@
SUBDIRS = channels
all-local: config.nix
files = nar.nix buildenv.nix buildenv.pl unpack-channel.nix unpack-channel.sh
install-exec-local:
$(INSTALL) -d $(DESTDIR)$(datadir)/nix/corepkgs
$(INSTALL_DATA) config.nix $(srcdir)/nar.nix $(srcdir)/buildenv.nix $(srcdir)/buildenv.pl $(DESTDIR)$(datadir)/nix/corepkgs
$(INSTALL_DATA) config.nix $(files) $(DESTDIR)$(datadir)/nix/corepkgs
include ../substitute.mk
EXTRA_DIST = config.nix.in nar.nix buildenv.nix buildenv.pl
EXTRA_DIST = config.nix.in $(files)

11
corepkgs/channels/Makefile.am
View file

@ -1,11 +0,0 @@
all-local: unpack.sh
install-exec-local:
$(INSTALL) -d $(DESTDIR)$(datadir)/nix/corepkgs
$(INSTALL) -d $(DESTDIR)$(datadir)/nix/corepkgs/channels
$(INSTALL_DATA) $(srcdir)/unpack.nix $(DESTDIR)$(datadir)/nix/corepkgs/channels
$(INSTALL_PROGRAM) unpack.sh $(DESTDIR)$(datadir)/nix/corepkgs/channels
include ../../substitute.mk
EXTRA_DIST = unpack.nix unpack.sh.in

7
corepkgs/channels/unpack.nix
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@ -1,7 +0,0 @@
{system, inputs}:
derivation {
name = "channels";
builder = ./unpack.sh;
inherit system inputs;
}

35
corepkgs/channels/unpack.sh.in
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@ -1,35 +0,0 @@
#! @shell@ -e
# Cygwin compatibility hack: bunzip2 expects cygwin.dll in $PATH.
export PATH=@coreutils@
@coreutils@/mkdir $out
@coreutils@/mkdir $out/tmp
cd $out/tmp
inputs=($inputs)
for ((n = 0; n < ${#inputs[*]}; n += 2)); do
channelName=${inputs[n]}
channelTarball=${inputs[n+1]}
echo "unpacking channel $channelName"
@bzip2@ -d < $channelTarball | @tar@ xf -
if test -e */channel-name; then
channelName="$(@coreutils@/cat */channel-name)"
fi
nr=1
attrName=$(echo $channelName | @tr@ -- '- ' '__')
dirName=$attrName
while test -e ../$dirName; do
nr=$((nr+1))
dirName=$attrName-$nr
done
@coreutils@/mv * ../$dirName # !!! hacky
done
cd ..
@coreutils@/rmdir tmp

11
corepkgs/unpack-channel.nix Normal file
View file

@ -0,0 +1,11 @@
with import <nix/config.nix>;
{ system, inputs }:
derivation {
name = "channels";
builder = shell;
args = [ "-e" ./unpack-channel.sh ];
inherit system inputs bzip2 tar tr;
PATH = "${nixBinDir}:${coreutils}";
}

30
corepkgs/unpack-channel.sh Normal file
View file

@ -0,0 +1,30 @@
mkdir $out
mkdir $out/tmp
cd $out/tmp
inputs=($inputs)
for ((n = 0; n < ${#inputs[*]}; n += 2)); do
channelName=${inputs[n]}
channelTarball=${inputs[n+1]}
echo "unpacking channel $channelName"
$bzip2 -d < $channelTarball | $tar xf -
if test -e */channel-name; then
channelName="$(cat */channel-name)"
fi
nr=1
attrName=$(echo $channelName | $tr -- '- ' '__')
dirName=$attrName
while test -e ../$dirName; do
nr=$((nr+1))
dirName=$attrName-$nr
done
mv * ../$dirName # !!! hacky
done
cd ..
rmdir tmp

1
perl/lib/Nix/Config.pm.in
View file

@ -2,6 +2,7 @@ package Nix::Config;
$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";

22
scripts/nix-channel.in
View file

@ -1,15 +1,13 @@
#! @perl@ -w
use strict;
use Nix::Config;
my $rootsDir = "@localstatedir@/nix/gcroots";
my $stateDir = $ENV{"NIX_STATE_DIR"};
$stateDir = "@localstatedir@/nix" unless defined $stateDir;
my $manifestDir = $Nix::Config::manifestDir;
# Turn on caching in nix-prefetch-url.
my $channelCache = "$stateDir/channel-cache";
my $channelCache = "$Nix::Config::stateDir/channel-cache";
mkdir $channelCache, 0755 unless -e $channelCache;
$ENV{'NIX_DOWNLOAD_CACHE'} = $channelCache if -W $channelCache;
@ -79,19 +77,19 @@ sub update {
readChannels;
# Create the manifests directory if it doesn't exist.
mkdir "$stateDir/manifests", 0755 unless -e "$stateDir/manifests";
mkdir $manifestDir, 0755 unless -e $manifestDir;
# Do we have write permission to the manifests directory? If not,
# then just skip pulling the manifest and just download the Nix
# expressions. If the user is a non-privileged user in a
# multi-user Nix installation, he at least gets installation from
# source.
if (-W "$stateDir/manifests") {
if (-W $manifestDir) {
# Pull cache manifests.
foreach my $url (@channels) {
#print "pulling cache manifest from `$url'\n";
system("@bindir@/nix-pull", "--skip-wrong-store", "$url/MANIFEST") == 0
system("$Nix::Config::binDir/nix-pull", "--skip-wrong-store", "$url/MANIFEST") == 0
or die "cannot pull cache manifest from `$url'";
}
@ -110,7 +108,7 @@ sub update {
print "downloading Nix expressions from `$fullURL'...\n";
$ENV{"PRINT_PATH"} = 1;
$ENV{"QUIET"} = 1;
my ($hash, $path) = `@bindir@/nix-prefetch-url '$fullURL'`;
my ($hash, $path) = `$Nix::Config::binDir/nix-prefetch-url '$fullURL'`;
die "cannot fetch `$fullURL'" if $? != 0;
chomp $path;
$inputs .= '"' . $channelName . '"' . " " . $path . " ";
@ -121,13 +119,13 @@ sub update {
my $userName = getpwuid($<);
die "who ARE you? go away" unless defined $userName;
my $rootFile = "$rootsDir/per-user/$userName/channels";
my $rootFile = "$Nix::Config::stateDir/gcroots/per-user/$userName/channels";
# Build the Nix expression.
print "unpacking channel Nix expressions...\n";
my $outPath = `\\
@bindir@/nix-build --out-link '$rootFile' --drv-link '$rootFile'.tmp \\
@datadir@/nix/corepkgs/channels/unpack.nix \\
$Nix::Config::binDir/nix-build --out-link '$rootFile' --drv-link '$rootFile'.tmp \\
'<nix/unpack-channel.nix>' \\
--argstr system @system@ --arg inputs '$inputs'`
or die "cannot unpack the channels";
chomp $outPath;

3
tests/Makefile.am
View file

@ -8,7 +8,7 @@ TESTS = init.sh hash.sh lang.sh add.sh simple.sh dependencies.sh \
referrers.sh user-envs.sh logging.sh nix-build.sh misc.sh fixed.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
binary-patching.sh timeout.sh secure-drv-outputs.sh nix-channel.sh
XFAIL_TESTS =
@ -37,4 +37,3 @@ EXTRA_DIST = $(TESTS) \
secure-drv-outputs.nix \
$(wildcard lang/*.nix) $(wildcard lang/*.exp) $(wildcard lang/*.exp.xml) $(wildcard lang/*.flags) $(wildcard lang/dir*/*.nix) \
common.sh.in

3
tests/config.nix.in
View file

@ -13,5 +13,6 @@ rec {
builder = shell;
args = ["-e" args.builder];
PATH = path;
} // removeAttrs args ["builder"]);
} // removeAttrs args ["builder" "meta"])
// { meta = args.meta or {}; };
}

1
tests/dependencies.nix
View file

@ -17,6 +17,7 @@ let {
builder = ./dependencies.builder0.sh + "/FOOBAR/../.";
input1 = input1 + "/.";
inherit input2;
meta.description = "Random test package";
};
}

43
tests/nix-channel.sh Normal file
View file

@ -0,0 +1,43 @@
source common.sh
clearProfiles
clearManifests
rm -f $TEST_ROOT/.nix-channels
# Override location of ~/.nix-channels.
export HOME=$TEST_ROOT
# Test add/list/remove.
nix-channel --add http://foo/bar
nix-channel --list | grep -q http://foo/bar
nix-channel --remove http://foo/bar
[ -e $TEST_ROOT/.nix-channels ]
[ "$(cat $TEST_ROOT/.nix-channels)" = '' ]
# 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))
rm -rf $TEST_ROOT/nixexprs
mkdir -p $TEST_ROOT/nixexprs
cp config.nix dependencies.nix dependencies.builder*.sh $TEST_ROOT/nixexprs/
ln -s dependencies.nix $TEST_ROOT/nixexprs/default.nix
(cd $TEST_ROOT && tar cv nixexprs) | bzip2 > $TEST_ROOT/foo/nixexprs.tar.bz2
# Test the update action.
nix-channel --add file://$TEST_ROOT/foo
nix-channel --update
# Do a query.
nix-env -qa \* --meta --xml --out-path > $TEST_ROOT/meta.xml
if [ "$xmllint" != false ]; then
$xmllint --noout $TEST_ROOT/meta.xml || fail "malformed XML"
fi
grep -q 'meta.*description.*Random test package' $TEST_ROOT/meta.xml
grep -q 'item.*attrPath="foo".*name="dependencies"' $TEST_ROOT/meta.xml
# Do an install.
nix-env -i dependencies
[ -e $TEST_ROOT/var/nix/profiles/default/foobar ]