Commit graph

657 commits

Author SHA1 Message Date
Eelco Dolstra 7fe5910bf8
Merge pull request #1857 from dtzWill/fix/check-for-lzma-mt
configure.ac: check if lzma has MT support, fix deb build/etc.
2018-02-19 13:06:14 +01:00
Shea Levy ac973a6d3c
monitor-fds: Fix on macOS.
Fixes #1871.
2018-02-14 18:26:37 -05:00
Shea Levy de4934ab3b
Allow plugins to define new settings. 2018-02-13 14:43:32 -05:00
Linus Heckemann 78ac3eb4eb Fix #1762
nix-store --export, nix-store --dump, and nix dump-path would previously
fail silently if writing the data out failed, because
 a) FdSink::write ignored exceptions, and
 b) the commands relied on FdSink's destructor, which ignores
    exceptions, to flush the data out.

This could cause rather opaque issues with installing nixos, because
nix-store --export would happily proceed even if it couldn't write its
data out (e.g. if nix-store --import on the other side of the pipe
failed).

This commit adds tests that expose these issues in the nix-store
commands, and fixes them for all three.
2018-02-13 14:26:19 +00:00
Shea Levy 6eb1040e90
Allow includes from nix.conf 2018-02-13 08:16:32 -05:00
Will Dietz c6209030c4 compression: make parallel sink separate class 2018-02-11 13:50:28 -06:00
Will Dietz a0bdc96726 compression: print warning if parallel requested but not supported 2018-02-11 13:03:47 -06:00
Will Dietz 5a082ad15a configure.ac: check if lzma has MT support, fix deb build/etc. 2018-02-09 21:02:25 -06:00
AmineChikhaoui 55ecdfe2a8
make multi threaded compression configurable and use single threaded
by default.
2018-02-07 17:54:08 +01:00
AmineChikhaoui 163e39547a
Merge branch 'master' of https://github.com/NixOS/nix into parallel-xz 2018-02-07 17:53:50 +01:00
Eelco Dolstra 84989d3af2
Improve filtering of ANSI escape sequences in build logs
All ANSI sequences except color setting are now filtered out. In
particular, terminal resets (such as from NixOS VM tests) are filtered
out.

Also, fix the completely broken tab character handling.
2018-02-07 15:23:57 +01:00
AmineChikhaoui 9d1e22f743
set block size to 0 to let the lzma lib choose the right one, add
some comments about possible improvements wrt memory usage/threading.
2018-02-07 11:18:55 +01:00
AmineChikhaoui bc7e3a4dd6
support multi threaded xz encoder, this might be particularly useful in
the case of hydra where the overhead of single threaded encoding is more
noticeable e.g most of the time spent in "Sending inputs"/"Receiving outputs"
is due to compression while the actual upload to the binary cache seems
to be negligible.
2018-02-06 22:42:02 +01:00
Eelco Dolstra d4dcffd643
Add pure evaluation mode
In this mode, the following restrictions apply:

* The builtins currentTime, currentSystem and storePath throw an
  error.

* $NIX_PATH and -I are ignored.

* fetchGit and fetchMercurial require a revision hash.

* fetchurl and fetchTarball require a sha256 attribute.

* No file system access is allowed outside of the paths returned by
  fetch{Git,Mercurial,url,Tarball}. Thus 'nix build -f ./foo.nix' is
  not allowed.

Thus, the evaluation result is completely reproducible from the
command line arguments. E.g.

  nix build --pure-eval '(
    let
      nix = fetchGit { url = https://github.com/NixOS/nixpkgs.git; rev = "9c927de4b179a6dd210dd88d34bda8af4b575680"; };
      nixpkgs = fetchGit { url = https://github.com/NixOS/nixpkgs.git; ref = "release-17.09"; rev = "66b4de79e3841530e6d9c6baf98702aa1f7124e4"; };
    in (import (nix + "/release.nix") { inherit nix nixpkgs; }).build.x86_64-linux
  )'

The goal is to enable completely reproducible and traceable
evaluation. For example, a NixOS configuration could be fully
described by a single Git commit hash. 'nixos-rebuild' would do
something like

  nix build --pure-eval '(
    (import (fetchGit { url = file:///my-nixos-config; rev = "..."; })).system
  ')

where the Git repository /my-nixos-config would use further fetchGit
calls or Git externals to fetch Nixpkgs and whatever other
dependencies it has. Either way, the commit hash would uniquely
identify the NixOS configuration and allow it to reproduced.
2018-01-16 19:23:18 +01:00
Will Dietz 9dd2b8ac7b use libbrotli directly when available
* Look for both 'brotli' and 'bro' as external command,
  since upstream has renamed it in newer versions.
  If neither are found, current runtime behavior
  is preserved: try to find 'bro' on PATH.
* Limit amount handed to BrotliEncoderCompressStream
  to ensure interrupts are processed in a timely manner.
  Testing shows negligible performance impact.
  (Other compression sinks don't seem to require this)
2017-12-30 20:26:33 -06:00
Will Dietz e4d43f1f94 logging.cc: add missing 'override' 2017-12-11 12:08:40 -06:00
Eelco Dolstra 6cdaa858d0
Propagate flags like --sandbox to the daemon properly 2017-11-21 18:50:56 +01:00
Eelco Dolstra d0b88db441
Cleanup 2017-11-20 17:32:58 +01:00
Eelco Dolstra 72804dc0bd
Merge pull request #1645 from twhitehead/stat-race
Fix (highly unlikely) race condition in readLink
2017-11-20 17:32:27 +01:00
Eelco Dolstra e026bc3b05
fetchMercurial: Don't fetch hashes we already have 2017-11-01 18:43:11 +01:00
Eelco Dolstra 72cd52c3cd
builtins.fetchgit: Support importing a working tree
For example, you can write

  src = fetchgit ./.;

and if ./. refers to an unclean working tree, that tree will be copied
to the Nix store. This removes the need for "cleanSource".
2017-10-30 19:59:25 +01:00
Tyson Whitehead 07d2c6d213
Fix (highly unlikely) race condition in readLink
Used to determine symlink size with stat and value with readlink.
This could technically result in garbage if symlink changed between
calls.  Also gets around the broken stat implementation in our
network filesystem (returns size + 1 giving a byte of garbage).
2017-10-30 11:49:55 -04:00
Eelco Dolstra 2d5b1b24bf
Pass lists/attrsets to bash as (associative) arrays 2017-10-25 13:01:50 +02:00
Eelco Dolstra 96051dd057
More progress indicator improvements
Fixes #1599.
2017-10-24 14:47:23 +02:00
Eelco Dolstra fe9d2f974d
Handle log messages from build-remote
This makes the progress indicator show statuses like "connecting to
'root@machine'".
2017-10-24 14:05:22 +02:00
Eelco Dolstra 0d59f1ca49
nix: Respect -I, --arg, --argstr
Also, random cleanup to argument handling.
2017-10-24 12:58:34 +02:00
Eelco Dolstra 37fbfffd8e
Pass all settings to build-remote
This ensures that command line flags such as --builders get passed
correctly.
2017-10-23 20:50:28 +02:00
Eelco Dolstra fda7b95cb0
Fix a hang in ThreadPool
The worker threads could exit prematurely if they finished processing
all items while the main thread was still adding items. In particular,
this caused hanging nix-store --serve processes in the build farm.

Also, process items from the main thread.
2017-10-09 15:41:09 +02:00
Eelco Dolstra e350671737
Doh 2017-09-25 13:25:55 +02:00
Eelco Dolstra 89dc62c174
RemoteStore: Add option to drop old connections from the pool
This is a hack to make hydra-queue-runner free its temproots
periodically, thereby ensuring that garbage collection of the
corresponding paths is not blocked until the queue runner is
restarted.

It would be better if temproots could be released earlier than at
process exit. I started working on a RAII object returned by functions
like addToStore() that releases temproots. However, this would be a
pretty massive change so I gave up on it for now.
2017-09-14 18:10:38 +02:00
Eelco Dolstra 970366266b
Add "nix add-to-store" command 2017-09-14 13:29:33 +02:00
Eelco Dolstra b7376edf06
ThreadPool: On exception, interrupt the other worker threads 2017-09-08 15:31:24 +02:00
Eelco Dolstra 8f6b347abd
ThreadPool: Improve exception handling
In particular, process() won't return as long as there are active
items. This prevents work item lambdas from referring to stack frames
that no longer exist.
2017-09-08 14:42:09 +02:00
Eelco Dolstra dff440aab3
nix build: Add --out-link and --no-link options 2017-09-06 16:20:34 +02:00
Eelco Dolstra fd73c1e20a
Add an activity for binary cache queries 2017-08-31 15:25:58 +02:00
Eelco Dolstra 9f47eac92b
Fix mismatched tag warning
https://hydra.nixos.org/build/59649086
2017-08-31 11:04:52 +02:00
Eelco Dolstra 5cc8609e30
nix run: Allow passing a command to execute
E.g.

  nix run nixpkgs.hello -c hello --greeting Hallo

Note that unlike "nix-shell --command", no quoting of arguments is
necessary.

"-c" (short for "--command") cannot be combined with "--" because they
both consume all remaining arguments. But since installables shouldn't
start with a dash, this is unlikely to cause problems.
2017-08-29 14:42:48 +02:00
Eelco Dolstra 05c45f301d
readLink(): Handle symlinks in /proc
Symlinks like /proc/self/exe report a stat() size of 0, so use a
buffer of at least PATH_MAX instead.
2017-08-29 11:52:34 +02:00
Eelco Dolstra 2cc345b95f
Give activities a verbosity level again
And print them (separately from the progress bar) given sufficient -v
flags.
2017-08-28 19:13:24 +02:00
Eelco Dolstra fe34b91289
Tunnel progress messages from the daemon to the client
This makes the progress bar work for non-root users.
2017-08-28 18:49:42 +02:00
Eelco Dolstra e681b1f064
Simplify 2017-08-28 14:30:35 +02:00
Eelco Dolstra 94a0548dc4
Simplify 2017-08-25 21:26:37 +02:00
Eelco Dolstra 0ac35b67b8
Allow derivations to update the build phase
So the progress bar can show

  [1/0/1 built, 0.0 MiB DL] building hello-2.10 (configuring): checking whether pread is declared without a macro... yes
2017-08-25 18:04:05 +02:00
Eelco Dolstra c137c0a5eb
Allow activities to be nested
In particular, this allows more relevant activities ("substituting X")
to supersede inferior ones ("downloading X").
2017-08-25 17:49:40 +02:00
Eelco Dolstra db1d45037c
Handle SIGWINCH 2017-08-25 15:59:03 +02:00
Eelco Dolstra a3015db6c3
Typo 2017-08-25 15:59:03 +02:00
Eelco Dolstra 0e9ddcc306
Restore activity metadata
This allows the progress bar to display "building perl-5.22.3" instead
of "building /nix/store/<hash>-perl-5.22.3.drv".
2017-08-25 15:58:35 +02:00
Eelco Dolstra 9400cb36b7
Disallow accidental copy construction 2017-08-21 12:18:42 +02:00
Andy Wingo 6bb4e3e8fe Remove unused decodeOctalEscaped
Besides being unused, this function has a bug that it will incorrectly
decode the path component Ubuntu\04016.04.2\040LTS\040amd64 as
"Ubuntu.04.2 LTS amd64" instead of "Ubuntu 16.04.2 LTS amd64".
2017-08-18 11:07:00 +02:00
Eelco Dolstra c2cab20732
nix verify: Restore the progress indicator 2017-08-16 20:56:03 +02:00
Eelco Dolstra b4ed97e3a3
nix optimise-store: Show how much space has been freed 2017-08-16 20:56:03 +02:00
Eelco Dolstra 23b8b7e096
nix optimise-store: Add
This replaces "nix-store --optimise". Main difference is that it has a
progress indicator.
2017-08-16 20:56:03 +02:00
Eelco Dolstra 40bffe0a43
Progress indicator: Cleanup 2017-08-16 20:56:03 +02:00
Eelco Dolstra dff12b38f9
Progress indicator: More improvements 2017-08-16 20:56:03 +02:00
Eelco Dolstra bf1f123b09
Progress indicator: Show number of active items 2017-08-16 20:56:03 +02:00
Eelco Dolstra 0e0dcf2c7e
Progress indicator: Unify "copying" and "substituting"
They're the same thing after all.

Example:

  $ nix build --store local?root=/tmp/nix nixpkgs.firefox-unwrapped
  [0/1 built, 49/98 copied, 16.3/92.8 MiB DL, 55.8/309.2 MiB copied] downloading 'https://cache.nixos.org/nar/0pl9li1jigcj2dany47hpmn0r3r48wc4nz48v5mqhh426lgz3bz6.nar.xz'
2017-08-16 20:56:03 +02:00
Eelco Dolstra c36467ad2e
Improve substitution progress indicator
E.g.

  $ nix build --store local?root=/tmp/nix nixpkgs.firefox-unwrapped
  [0/1 built, 1/97/98 fetched, 65.8/92.8 MiB DL, 203.2/309.2 MiB copied] downloading 'https://cache.nixos.org/nar/1czm9fk0svacy4h6a3fzkpafi4f7a9gml36kk8cq1igaghbspg3k.nar.xz'
2017-08-16 20:56:02 +02:00
Eelco Dolstra b29b6feaba
nix copy: Improve progress indicator
It now shows the amount of data copied:

  [8/1038 copied, 160.4/1590.9 MiB copied] copying path '...'
2017-08-16 20:56:02 +02:00
Eelco Dolstra c5e4404580
nix copy: Revive progress bar 2017-08-16 20:56:02 +02:00
Eelco Dolstra af765a8eab
Use /proc/self/fd to efficiently close all FDs on Linux
Issue #1506.
2017-08-09 16:22:05 +02:00
Brian McKenna b39cc4fc81 Include missing <cstdlib> for abort()
This is needed to get Nix compiled using Android NDK.
2017-08-03 07:03:22 +10:00
Eelco Dolstra a2778988f2
Merge branch 'macOS' of https://github.com/davidak/nix 2017-07-31 10:31:51 +02:00
Jörg Thalheim 2fd8f8bb99 Replace Unicode quotes in user-facing strings by ASCII
Relevant RFC: NixOS/rfcs#4

$ ag -l | xargs sed -i -e "/\"/s/’/'/g;/\"/s/‘/'/g"
2017-07-30 12:32:45 +01:00
davidak 92bcb61127 replace "Mac OS X" with "macOS"
except in older release notes where the name was actually Mac OS X.
2017-07-30 12:26:17 +02:00
Eelco Dolstra af4689f9e9
nix-prefetch-url: Fix regression in hash printing 2017-07-28 14:56:39 +02:00
Eelco Dolstra 57b9505731
nix search: Add a cache
The package list is now cached in
~/.cache/nix/package-search.json. This gives a substantial speedup to
"nix search" queries. For example (on an SSD):

First run: (no package search cache, cold page cache)

  $ time nix search blender
  Attribute name: nixpkgs.blender
  Package name: blender
  Version: 2.78c
  Description: 3D Creation/Animation/Publishing System

  real    0m6.516s

Second run: (package search cache populated)

  $ time nix search blender
  Attribute name: nixpkgs.blender
  Package name: blender
  Version: 2.78c
  Description: 3D Creation/Animation/Publishing System

  real    0m0.143s
2017-07-26 17:29:10 +02:00
Eelco Dolstra 90825dea51
Add "nix search" command 2017-07-20 13:33:13 +02:00
Eelco Dolstra 112ff7833d
nix: Show help when no arguments are given
Fixes #1464.
2017-07-14 13:44:45 +02:00
Eelco Dolstra 2965d40612 replaceSymlink(): Handle the case where the temporary file already exists
Not really necessary anymore for #849, but still nice to have.
2017-07-11 23:21:40 +02:00
Eelco Dolstra 9c00fa4179 Merge pull request #1422 from nh2/fix-potential-hash-comparison-crash
Fix potential crash/wrong result two hashes of unequal length are compared
2017-07-10 18:09:49 +02:00
Eelco Dolstra c0015e87af
Support base-64 hashes
Also simplify the Hash API.

Fixes #1437.
2017-07-04 15:07:41 +02:00
Eelco Dolstra 90da34e421
processGraph(): Call getEdges in parallel 2017-07-03 11:38:08 +02:00
Niklas Hambüchen b591536e93 Fix potential crash/wrong result two hashes of unequal length are compared 2017-06-24 02:17:45 +02:00
Eelco Dolstra 177f3996e2
Suppress spurious "killing process N: Operation not permitted" on macOS 2017-06-12 18:34:48 +02:00
Eelco Dolstra 186571965d
Don't show flags from config settings in "nix --help" 2017-06-07 18:41:20 +02:00
Eelco Dolstra aa952d5f0b
nix: Add --help-config flag 2017-06-07 16:49:54 +02:00
Eelco Dolstra b8283773bd
nix: Make all options available as flags
Thus, instead of ‘--option <name> <value>’, you can write ‘--<name>
<value>’. So

  --option http-connections 100

becomes

  --http-connections 100

Apart from brevity, the difference is that it's not an error to set a
non-existent option via --option, but unrecognized arguments are
fatal.

Boolean options have special treatment: they're mapped to the
argument-less flags ‘--<name>’ and ‘--no-<name>’. E.g.

  --option auto-optimise-store false

becomes

  --no-auto-optimise-store
2017-06-07 16:17:17 +02:00
Eelco Dolstra 588dad4084
Fix build failure on Debian/Ubuntu
http://hydra.nixos.org/build/53537463
2017-05-29 15:59:18 +02:00
Eelco Dolstra b01d62285c
Improve progress indicator 2017-05-16 16:09:57 +02:00
Eelco Dolstra 2b761d5f50
Make fmt() non-recursive 2017-05-15 17:36:32 +02:00
Eelco Dolstra 465cb68244
Figure out the user's home directory if $HOME is not set 2017-05-05 17:08:23 +02:00
Eelco Dolstra 72fb2a7edc
Fix build on gcc 4.9
http://hydra.nixos.org/build/52408843
2017-05-03 16:08:48 +02:00
Eelco Dolstra 3e4bdfedee
Minor cleanup 2017-05-01 17:30:17 +02:00
Eelco Dolstra 2f21d522c2
Hopefully fix the Darwin build
http://hydra.nixos.org/build/52080911
2017-04-28 17:13:55 +02:00
Eelco Dolstra 41c4558afe
Fix hash computation when importing NARs greater than 4 GiB
This caused "nix-store --import" to compute an incorrect hash on NARs
that don't fit in an unsigned int. The import would succeed, but
"nix-store --verify-path" or subsequent exports would detect an
incorrect hash.

A deeper issue is that the export/import format does not contain a
hash, so we can't detect such issues early.

Also, I learned that -Wall does not warn about this.
2017-04-28 15:24:05 +02:00
Shea Levy 4bc00760f9 Add Store nesting to fix import-from-derivation within filterSource 2017-04-26 14:15:47 -04:00
Eelco Dolstra 5bd8795e1f
nix repl: Use $XDG_DATA_HOME for the readline history 2017-04-25 18:56:29 +02:00
David McFarland 804ac52489 add helper function to set 'interruptThrown'
this fixes a linker failure on cygwin 64 due to some bad
interaction between tls and shared libraries.

see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64697
2017-04-21 11:28:14 -03:00
Eelco Dolstra efa4bdbfcd
Improve nix show-config --json
In particular, show descriptions. This could be used for manpage
generation etc.
2017-04-20 17:34:47 +02:00
Eelco Dolstra 4410e9d995
Setting: Remove "Tag" template argument 2017-04-20 16:52:53 +02:00
Eelco Dolstra f05d5f89ff
Read per-user settings from ~/.config/nix/nix.conf 2017-04-20 14:58:16 +02:00
Eelco Dolstra 6520b757c5
Fix 32-bit build
http://hydra.nixos.org/build/51569816
2017-04-14 13:59:39 +02:00
Eelco Dolstra ba9ad29fdb
Convert Settings to the new config system
This makes all config options self-documenting.

Unknown or unparseable config settings and --option flags now cause a
warning.
2017-04-13 20:53:23 +02:00
Eelco Dolstra 6bd9576aeb
Support arbitrary numeric types for settings 2017-04-13 17:54:05 +02:00
Eelco Dolstra 0bf34de43b
Validate Boolean settings better 2017-04-13 16:31:28 +02:00
Eelco Dolstra 2040240e23
Add a Config class to simplify adding configuration settings
The typical use is to inherit Config and add Setting<T> members:

  class MyClass : private Config
  {
    Setting<int> foo{this, 123, "foo", "the number of foos to use"};
    Setting<std::string> bar{this, "blabla", "bar", "the name of the bar"};

    MyClass() : Config(readConfigFile("/etc/my-app.conf"))
    {
      std::cout << foo << "\n"; // will print 123 unless overriden
    }
  };

Currently, this is used by Store and its subclasses for store
parameters. You now get a warning if you specify a non-existant store
parameter in a store URI.
2017-04-13 16:03:31 +02:00
Eelco Dolstra 568a099c88
canonPath(): Check against empty paths 2017-04-13 16:03:31 +02:00
Eelco Dolstra 6d97d81656
Add warn function 2017-04-13 16:03:31 +02:00
Eelco Dolstra 31cc9366fc
Initialise logger 2017-04-13 16:03:31 +02:00
Eelco Dolstra 963f2bf12b
Fix bogus "unexpected Nix daemon error: interrupted by the user" 2017-04-06 17:19:32 +02:00
Eelco Dolstra 256940fc48
nix-daemon: Disable path info cache
This is useless because the client also caches path info, and can
cause problems for long-running clients like hydra-queue-runner
(i.e. it may return cached info about paths that have been
garbage-collected).
2017-04-06 14:30:31 +02:00
Eelco Dolstra 0a7ca24c26
Fix xz decompression
Fixes #1285.
2017-03-22 11:53:33 +01:00
Eelco Dolstra 895a74a814
LocalFSStore::getBuildLog(): Handle corrupted logs 2017-03-21 19:23:35 +01:00
Eelco Dolstra ed5c0f69f2
Don't hang in decompression if bzip2 data ends prematurely 2017-03-21 19:23:35 +01:00
Eelco Dolstra f8b84a3b8c
Move istringstream_nocopy to a separate file 2017-03-21 14:43:03 +01:00
Eelco Dolstra 20df50d8e1
Merge branch 'darwin-s3-binary-cache-store' of https://github.com/shlevy/nix 2017-03-20 17:46:35 +01:00
Eelco Dolstra 0ec7f47b00
Remove "killing process <pid>" messages
They convey no useful information.
2017-03-16 10:52:28 +01:00
Eelco Dolstra 25dff2b7db
runProgram(): Distinguish between empty input and no input
For example, if we call brotli with an empty input, it shouldn't read
from the caller's stdin.
2017-03-15 16:50:19 +01:00
Eelco Dolstra 8b1d65bebe
S3BinaryCacheStore: Support compression of narinfo and log files
You can now set the store parameter "text-compression=br" to compress
textual files in the binary cache (i.e. narinfo and logs) using
Brotli. This sets the Content-Encoding header; the extension of
compressed files is unchanged.

You can separately specify the compression of log files using
"log-compression=br". This is useful when you don't want to compress
narinfo files for backward compatibility.
2017-03-15 16:49:28 +01:00
Eelco Dolstra 2691498b5c
Fix assertion failure on SIGINT
nix: src/libutil/compression.cc:142: virtual nix::XzSink::~XzSink(): Assertion `finished' failed.
2017-03-15 16:49:06 +01:00
Eelco Dolstra fbbc4d8dda
Fix deadlock in runProgram() when input is larger than the pipe buffer size 2017-03-15 16:49:06 +01:00
Eelco Dolstra e8186085e0
Add support for brotli compression
Build logs on cache.nixos.org are compressed using Brotli (since this
allows them to be decompressed automatically by Chrome and Firefox),
so it's handy if "nix log" can decompress them.
2017-03-15 16:49:06 +01:00
Adrien Devresse d853877ce9 Add missing header <sstream> 2017-03-08 22:24:10 +01:00
Shea Levy 4fc30922cf istringstream_nocopy: Implement in a standards-compliant way.
Fixes the problem mentioned in e6a61b8da7

See #1135
2017-03-06 13:03:02 -05:00
Eelco Dolstra 1cf4801108
Revert fa125b9b28
This causes quadratic performance.
2017-03-06 13:56:20 +01:00
Eelco Dolstra d140c75530
Pool: Don't hang if creating a connection fails 2017-03-03 19:21:43 +01:00
Eelco Dolstra 577ebeaefb
Improve SSH handling
* Unify SSH code in SSHStore and LegacySSHStore.

* Fix a race starting the SSH master. We now wait synchronously for
  the SSH master to finish starting. This prevents the SSH clients
  from starting their own connections.

* Don't use a master if max-connections == 1.

* Add a "max-connections" store parameter.

* Add a "compress" store parameter.
2017-03-03 19:05:50 +01:00
Eelco Dolstra fa125b9b28
TeeSink: Pre-reserve string space
When receiving a very large file, this can prevent the string from
having tobe copied, which temporarily doubles memory consumption.
2017-03-01 16:16:04 +01:00
Eelco Dolstra f61f67ddee
RemoteStore::addToStore(): Send NAR rather than string containing NAR
This allows the NAR to be streamed in the future (though we're not
doing that yet).
2017-03-01 16:07:15 +01:00
Eelco Dolstra 374908726b
readString(): Read directly into std::string
When reading a huge string, this halves memory consumption.

(Strictly speaking, this appears only valid in C++17, but who cares...)
2017-03-01 14:54:11 +01:00
Eelco Dolstra c4a40949d9
Handle importing NARs containing files greater than 4 GiB
Also templatize readInt() to work for various integer types.
2017-03-01 13:52:54 +01:00
Eelco Dolstra 302386f775
Support netrc in <nix/fetchurl.nix>
This allows <nix/fetchurl.nix> to fetch private Git/Mercurial
repositories, e.g.

  import <nix/fetchurl.nix> {
    url = https://edolstra@bitbucket.org/edolstra/my-private-repo/get/80a14018daed.tar.bz2;
    sha256 = "1mgqzn7biqkq3hf2697b0jc4wabkqhmzq2srdymjfa6sb9zb6qs7";
  }

where /etc/nix/netrc contains:

  machine bitbucket.org
  login edolstra
  password blabla...

This works even when sandboxing is enabled.

To do: add unpacking support (i.e. fetchzip functionality).
2017-02-16 15:51:50 +01:00
Eelco Dolstra 9ff9c3f2f8
Add support for s3:// URIs
This adds support for s3:// URIs in all places where Nix allows URIs,
e.g. in builtins.fetchurl, builtins.fetchTarball, <nix/fetchurl.nix>
and NIX_PATH. It allows fetching resources from private S3 buckets,
using credentials obtained from the standard places (i.e. AWS_*
environment variables, ~/.aws/credentials and the EC2 metadata
server). This may not be super-useful in general, but since we already
depend on aws-sdk-cpp, it's a cheap feature to add.
2017-02-14 14:20:00 +01:00
Tuomas Tynkkynen 2cd468874f Include config.h implicitly with '-include config.h' in CFLAGS
Because config.h can #define things like _FILE_OFFSET_BITS=64 and not
every compilation unit includes config.h, we currently compile half of
Nix with _FILE_OFFSET_BITS=64 and other half with _FILE_OFFSET_BITS
unset. This causes major havoc with the Settings class on e.g. 32-bit ARM,
where different compilation units disagree with the struct layout.

E.g.:

diff --git a/src/libstore/globals.cc b/src/libstore/globals.cc
@@ -166,6 +166,8 @@ void Settings::update()
     _get(useSubstitutes, "build-use-substitutes");
+    fprintf(stderr, "at Settings::update(): &useSubstitutes = %p\n", &nix::settings.useSubstitutes);
     _get(buildUsersGroup, "build-users-group");
diff --git a/src/libstore/remote-store.cc b/src/libstore/remote-store.cc
+++ b/src/libstore/remote-store.cc
@@ -138,6 +138,8 @@ void RemoteStore::initConnection(Connection & conn)
 void RemoteStore::setOptions(Connection & conn)
 {
+    fprintf(stderr, "at RemoteStore::setOptions(): &useSubstitutes = %p\n", &nix::settings.useSubstitutes);
     conn.to << wopSetOptions

Gave me:

at Settings::update(): &useSubstitutes = 0xb6e5c5cb
at RemoteStore::setOptions(): &useSubstitutes = 0xb6e5c5c7

That was not a fun one to debug!
2017-02-08 21:51:02 +02:00
Eelco Dolstra ddb5577f2e
Move SavingSourceAdapter to serialise.hh 2017-02-07 19:29:20 +01:00
Eelco Dolstra 7a65b2470e
Restore default signal handling in child processes
In particular, this fixes Ctrl-C in nix-shell sessions.
2017-02-01 13:00:21 +01:00
Eelco Dolstra 83ae6503e8
Fix interrupt handling 2017-01-26 20:40:33 +01:00
Eelco Dolstra e5641dfe1e
Work around a bug in clang and older versions of gcc
http://hydra.nixos.org/build/46597440

https://llvm.org/bugs/show_bug.cgi?id=28096
2017-01-24 10:57:24 +01:00
Eelco Dolstra 8af062f372 Merge pull request #981 from shlevy/build-remote-c++
build-remote: Implement in C++
2017-01-19 18:21:55 +01:00
Eelco Dolstra 21948deed9
Kill builds when we get EOF on the log FD
This closes a long-time bug that allowed builds to hang Nix
indefinitely (regardless of timeouts) simply by doing

  exec > /dev/null 2>&1; while true; do true; done

Now, on EOF, we just send SIGKILL to the child to make sure it's
really gone.
2017-01-19 17:16:14 +01:00
Eelco Dolstra 63e10b4d28
Cleanup 2017-01-19 17:06:04 +01:00
Eelco Dolstra cc3b93c991
Handle SIGINT etc. via a sigwait() signal handler thread
This allows other threads to install callbacks that run in a regular,
non-signal context. In particular, we can use this to signal the
downloader thread to quit.

Closes #1183.
2017-01-17 18:21:02 +01:00
Eelco Dolstra 8079ab87a2 AutoCloseDir: Use std::unique_ptr 2017-01-16 22:39:27 +01:00
Eelco Dolstra 2b9d0a99cb AutoDeleteArray -> std::unique_ptr
Also, switch to C++14 for std::make_unique.
2017-01-16 22:24:49 +01:00
Shea Levy f867f090ed Merge branch 'base32-overflow' of git://github.com/vcunat/nix 2016-12-13 09:41:02 -05:00
Eelco Dolstra e6a61b8da7
Fix S3BinaryCacheStore
It failed with

   AWS error uploading ‘6gaxphsyhg66mz0a00qghf9nqf7majs2.ls.xz’: Unable to parse ExceptionName: MissingContentLength Message: You must provide the Content-Length HTTP header.

possibly because the istringstream_nocopy introduced in
0d2ebb4373 doesn't supply the seek
method that the AWS library expects. So bring back the old version,
but only for S3BinaryCacheStore.
2016-12-08 15:31:27 +01:00
Eelco Dolstra ceeedb58d2
Use a steady clock for timeouts
Fixes #1146.
2016-12-06 21:58:04 +01:00
Eelco Dolstra 215b70f51e
Revert "Get rid of unicode quotes (#1140)"
This reverts commit f78126bfd6. There
really is no need for such a massive change...
2016-11-26 00:38:01 +01:00
Guillaume Maudoux f78126bfd6 Get rid of unicode quotes (#1140) 2016-11-25 15:48:27 +01:00
Eelco Dolstra 349e988903
Typo 2016-11-17 17:55:41 +01:00
Shea Levy 00b8bce4d0 Fix binary-cache-store build 2016-11-17 11:48:10 -05:00
Shea Levy 0d2ebb4373 istringstream_nocopy: Implement in a standards-compliant way
Fixes #1135.
2016-11-17 10:10:32 -05:00
Eelco Dolstra 4be4f6de56
S3BinaryCacheStore:: Eliminate a string copy while uploading
This cuts hydra-queue-runner's peak memory usage by about a third.
2016-11-16 16:21:30 +01:00
Shea Levy 167d12b02c build-remote: Implement in C++ 2016-11-10 11:09:15 -05:00
Eelco Dolstra b3ba762dbf Add missing #include 2016-11-07 14:35:47 +01:00
Vladimír Čunát 818aad3ec4
Detect and disallow base32 hash overflow
Example (before this commit):
$ nix-hash --type sha256 --to-base16 4n0igfxbd3kqvvj2k2xgysrp63l4v2gd110fwkk4apfpm0hvzwh0 \
    | xargs nix-hash --type sha256 --to-base32
0n0igfxbd3kqvvj2k2xgysrp63l4v2gd110fwkk4apfpm0hvzwh0

It's a real-life example:
https://github.com/NixOS/nixpkgs/pull/20208/files#r86695567
2016-11-06 22:17:37 +01:00
Eelco Dolstra 795d9b8668 Merge branch 'regex' of https://github.com/groxxda/nix 2016-10-19 16:32:24 +02:00
Eelco Dolstra 19c278de89 Fix Darwin build
Done slightly differently from https://github.com/NixOS/nix/pull/1093.
2016-10-19 15:21:18 +02:00
Alexander Ried b05b98df75 replace own regex class with std::regex 2016-10-18 20:22:25 +02:00
Eelco Dolstra 82e2a070e0 Add some functions needed by hydra 2016-10-12 15:49:37 +02:00