Commit graph

3010 commits

Author SHA1 Message Date
Eelco Dolstra
6170bb474b Eliminate local-binary-cache-store.hh 2016-02-29 16:14:39 +01:00
Eelco Dolstra
0b907321cc Make store implementations pluggable
This for instance allows hydra-queue-runner to add the S3 backend
at runtime.
2016-02-29 16:11:11 +01:00
Eelco Dolstra
012f8d187c Fix reading symlinks
The st_size field of a symlink doesn't have to be correct, e.g. for
/dev/fd symlinks.
2016-02-28 03:27:34 +01:00
Eelco Dolstra
d0344dd2c1 Remove bad assertion 2016-02-26 21:43:59 +01:00
Eelco Dolstra
581e1bc5b4 FdSource: track number of bytes read 2016-02-26 16:16:08 +01:00
Eelco Dolstra
bcc9943cee importPaths(): Optionally add NARs to binary cache accessor
This enables an optimisation in hydra-queue-runner, preventing a
download of a NAR it just uploaded to the cache when reading files
like hydra-build-products.
2016-02-26 15:20:10 +01:00
Eelco Dolstra
00b2c05749 nix: Add commands to query contents of NARs / binary caches
For example,

  $ NIX_REMOTE=file:///my-cache nix ls-store -lR /nix/store/f4kbgl8shhyy76rkk3nbxr0lz8d2ip7q-binutils-2.23.1
  dr-xr-xr-x                    0 ./bin
  -r-xr-xr-x                30748 ./bin/addr2line
  -r-xr-xr-x                66973 ./bin/ar
  ...

Similarly, "nix ls-nar" lists the contents of a NAR file, "nix
cat-nar" extracts a file from a NAR file, and "nix cat-store" extract
a file from a Nix store.
2016-02-25 17:57:00 +01:00
Eelco Dolstra
24a8f9e27b Merge branch 'master' into new-cli 2016-02-25 17:48:35 +01:00
Eelco Dolstra
1042c10fd0 Add NAR / Store accessor abstraction
This is primary to allow hydra-queue-runner to extract files like
"nix-support/hydra-build-products" from NARs in binary caches.
2016-02-25 17:43:19 +01:00
Eelco Dolstra
c5bc571861 Fix short boolean flags 2016-02-25 13:31:34 +01:00
Eelco Dolstra
7873cfb18d Fix build 2016-02-25 11:55:05 +01:00
Eelco Dolstra
f1bdeac986 Merge branch 'master' into new-cli 2016-02-25 11:25:11 +01:00
Eelco Dolstra
152b1d6bf9 deletePath(): Succeed if path doesn't exist
Also makes it robust against concurrent deletions.
2016-02-24 17:44:55 +01:00
Eelco Dolstra
28e7e29abd Eliminate reserveSpace flag 2016-02-24 17:44:55 +01:00
Eelco Dolstra
5a64e66268 LocalStore::addTextToStore(): Don't read the path we just wrote
This eliminates some unnecessary (presumably cached) I/O.
2016-02-24 17:11:31 +01:00
Eelco Dolstra
9ccbd55c5b BinaryCacheStore: Implement addToStore()
So now you can do

  $ NIX_REMOTE=file:///tmp/binary-cache nix-instantiate '<nixpkgs>' -A hello

and lots of other operations.
2016-02-24 16:52:28 +01:00
Eelco Dolstra
30e9d01516 openStoreAt(): Initialise the binary cache 2016-02-24 16:52:07 +01:00
Eelco Dolstra
ba0a81d14f Show a proper error message for unimplemented binary cache operations 2016-02-24 14:57:30 +01:00
Eelco Dolstra
45c83e5f9b Typo 2016-02-24 14:49:28 +01:00
Eelco Dolstra
263187a2ec Move BinaryCacheStore / LocalBinaryCacheStore from Hydra
So you can now do:

  $ NIX_REMOTE=file:///tmp/binary-cache nix-store -qR /nix/store/...
2016-02-24 14:48:16 +01:00
Eelco Dolstra
b584a0e7de Merge pull request #816 from tsion/incomplete-parse
Throw a specific error for incomplete parse errors.
2016-02-24 13:34:56 +01:00
Eelco Dolstra
bf2adf72c4 std::condition_variable_any -> std::condition_variable
The latter is supposed to be more efficient.
2016-02-24 13:31:46 +01:00
Eelco Dolstra
ccdbf589a4 C++ templates are just a glorified macro facility 2016-02-24 13:07:32 +01:00
Eelco Dolstra
5f862658c3 Remove bad daemon connections from the pool
This is necessary for long-running processes like hydra-queue-runner:
if a nix-daemon worker is killed, we need to stop reusing that
connection.
2016-02-24 11:39:56 +01:00
Scott Olson
6498adb002 Throw a specific error for incomplete parse errors.
`nix-repl` will use this for deciding whether to keep waiting for input or
error out right away.
2016-02-24 04:32:21 -06:00
Eelco Dolstra
d5626bf4c1 Pool<T>: Allow a maximum pool size 2016-02-23 16:40:16 +01:00
Eelco Dolstra
e292144d46 RemoteStore: Make thread-safe
This allows a RemoteStore object to be used safely from multiple
threads concurrently. It will make multiple daemon connections if
necessary.

Note: pool.hh and sync.hh have been copied from the Hydra source tree.
2016-02-23 15:00:59 +01:00
Vladimír Čunát
03cbb9ad59 nix-env: respect meta.outputsToInstall
Discussed on https://github.com/NixOS/nixpkgs/pull/12653#discussion_r51601849
2016-02-23 14:19:14 +01:00
Eelco Dolstra
c0b7a8a0b5 Move ref<t> into a separate header 2016-02-23 13:53:31 +01:00
Eelco Dolstra
8f71bc33d5 Doh 2016-02-22 17:33:27 +01:00
Eelco Dolstra
840056af04 Make OpenSSL usage thread-safe
OpenSSL can randomly segfault unless we register a callback function
to do locking.

https://www.openssl.org/docs/manmaster/crypto/threads.html
2016-02-22 15:51:14 +01:00
Eelco Dolstra
d361901bfe curl: Set CURLOPT_NOSIGNAL
Otherwise using curl is not safe in multi-threaded applications
because it installs a SIGALRM handler.
2016-02-22 15:51:14 +01:00
Eelco Dolstra
7a173a7be1 JSONObject: Support floats and booleans 2016-02-19 14:24:04 +01:00
Eelco Dolstra
b49d323ce2 Fix build without sodium
http://hydra.nixos.org/build/32085949
2016-02-17 12:42:14 +01:00
Eelco Dolstra
c4d22997f3 Add C++ functions for .narinfo processing / signing
This is currently only used by the Hydra queue runner rework, but like
eff5021eaa it presumably will be useful
for the C++ rewrite of nix-push and
download-from-binary-cache. (@shlevy)
2016-02-16 16:38:44 +01:00
Eelco Dolstra
5ac27053e9 Rename ValidPathInfo::hash -> narHash for consistency 2016-02-16 11:49:12 +01:00
Tristan Hume
9b05d5848c Fix to-base16 description 2016-02-16 10:15:58 +01:00
Eelco Dolstra
eff5021eaa Add xz compression function
This is used by the Hydra queue runner, but since it may also be
useful for the C++ rewrite of nix-push, I'm putting it here.
2016-02-15 21:45:56 +01:00
Eelco Dolstra
bfdacb712c decompressXZ: Ensure that lzma_end() is called
Otherwise we might leak memory.
2016-02-15 21:26:28 +01:00
Eelco Dolstra
c8f4d89a34 Expose the export magic value and move LocalStore::queryReferences to Store 2016-02-15 15:01:26 +01:00
Eelco Dolstra
e03d6e0998 Fix broken number parsing in fromJSON
The call to tmp_number.append had its arguments mixed up. Also, JSON
does not allow a trailing "," after array/object members.
2016-02-15 15:01:26 +01:00
Eelco Dolstra
d089372565 Add function to extract hash part of a store path 2016-02-15 15:01:26 +01:00
Eelco Dolstra
b3e8d72770 Merge pull request #762 from ctheune/ctheune-floats
Implement floats
2016-02-12 12:49:59 +01:00
Eelco Dolstra
ae4a3cfa03 Move addPermRoot into Store 2016-02-11 16:14:42 +01:00
Eelco Dolstra
fd205fb6f8 ref<T>: Add cast operator 2016-02-11 15:32:48 +01:00
Eelco Dolstra
206bbb5dc9 Add basic "nix build" command
Currently only builds by attribute from <nixpkgs> or the specified
file, e.g. "nix build hello".
2016-02-09 21:34:24 +01:00
Eelco Dolstra
cd2196b089 Start of new Nix command-line interface 2016-02-09 21:28:29 +01:00
Eelco Dolstra
0db9e6cd1a New command line parsing infrastructure 2016-02-09 21:07:48 +01:00
Eelco Dolstra
c780c1124e More of the same 2016-02-04 15:10:47 +01:00
Eelco Dolstra
fa7cd5369b StoreAPI -> Store
Calling a class an API is a bit redundant...
2016-02-04 14:48:42 +01:00
Eelco Dolstra
c10c61449f Eliminate the "store" global variable
Also, move a few free-standing functions into StoreAPI and Derivation.

Also, introduce a non-nullable smart pointer, ref<T>, which is just a
wrapper around std::shared_ptr ensuring that the pointer is never
null. (For reference-counted values, this is better than passing a
"T&", because the latter doesn't maintain the refcount. Usually, the
caller will have a shared_ptr keeping the value alive, but that's not
always the case, e.g., when passing a reference to a std::thread via
std::bind.)
2016-02-04 14:28:26 +01:00
Eelco Dolstra
d367b8e787 Add build mode to compute fixed-output derivation hashes
For example,

  $ nix-build --hash -A nix-repl.src

will build the fixed-output derivation nix-repl.src (a fetchFromGitHub
call), but instead of *verifying* the hash given in the Nix
expression, it prints out the resulting hash, and then moves the
result to its content-addressed location in the Nix store. E.g

  build produced path ‘/nix/store/504a4k6zi69dq0yjc0bm12pa65bccxam-nix-repl-8a2f5f0607540ffe56b56d52db544373e1efb980-src’ with sha256 hash ‘0cjablz01i0g9smnavhf86imwx1f9mnh5flax75i615ml71gsr88’

The goal of this is to make all nix-prefetch-* scripts unnecessary: we
can just let Nix run the real thing (i.e., the corresponding fetch*
derivation).

Another example:

  $ nix-build --hash -E 'with import <nixpkgs> {}; fetchgit { url = "https://github.com/NixOS/nix.git"; sha256 = "ffffffffffffffffffffffffffffffffffffffffffffffffffff"; }'
  ...
  git revision is 9e7c1a4bbd
  ...
  build produced path ‘/nix/store/gmsnh9i7x4mb7pyd2ns7n3c9l90jfsi1-nix’ with sha256 hash ‘1188xb621diw89n25rifqg9lxnzpz7nj5bfh4i1y3dnis0dmc0zp’

(Having to specify a fake sha256 hash is a bit annoying...)
2016-01-31 12:18:09 +01:00
Eelco Dolstra
9e7c1a4bbd Use the daemon when we don't have write access to the Nix database 2016-01-31 10:28:48 +01:00
Eelco Dolstra
4fa08f3edb Untabify 2016-01-28 16:03:32 +01:00
Eelco Dolstra
26566cd28e Untabify 2016-01-28 16:01:01 +01:00
Eelco Dolstra
9f14d7d33a printMissing(): Propagate store argument 2016-01-28 15:16:06 +01:00
Eelco Dolstra
7899fc959d Define HashType's size to allow it to be forward-declared 2016-01-27 17:46:01 +01:00
Eelco Dolstra
739bab0be7 Trivia 2016-01-27 17:18:31 +01:00
Eelco Dolstra
d45ad8fcf5 Make hashLength32() a method of Hash 2016-01-27 17:18:20 +01:00
Eelco Dolstra
5b8c09c124 string2Int: Barf on negative numbers for unsigned types 2016-01-20 16:45:05 +01:00
Eelco Dolstra
5d8b7eb3e1 Revert "Revert "next try for "don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751"""
This reverts commit b669d3d2e8.
2016-01-20 16:34:42 +01:00
Eelco Dolstra
b669d3d2e8 Revert "next try for "don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751""
This reverts commit ed23c8568e. Let's
merge this *after* the 1.11.1 release.
2016-01-20 00:05:28 +01:00
Fabian Schmitthenner
ed23c8568e next try for "don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751"
This reverts commit 8120b6fb8a and fixes the regression introduced in
8d22b26448.
2016-01-19 20:35:35 +00:00
Eelco Dolstra
8120b6fb8a Revert "don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751"
This reverts commit 8d22b26448. It
breaks Nixpkgs:

$ nix-env -qa
error: syntax error, unexpected IND_STR, expecting '}', at /home/eelco/Dev/nixpkgs-stable/pkgs/top-level/python-packages.nix:7605:8
2016-01-19 20:33:32 +01:00
Shea Levy
a6d52fcd95 Merge branch 'lexer' of git://github.com/fkz/nix 2016-01-17 10:08:03 -05:00
Fabian Schmitthenner
8d22b26448 don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751 2016-01-12 20:40:41 +00:00
Eelco Dolstra
786046cf13 --option build-repeat: Keep the differing output if -K is given
Similar to 00903fa799. Regardless of -K,
we now also print which output differs.
2016-01-12 18:26:24 +01:00
Eelco Dolstra
8906eda2f9 Canonicalize gids to 0
Previously files in the Nix store were owned by root or by nixbld,
depending on whether they were created by a substituter or by a
builder. This doesn't matter much, but causes spurious diffoscope
differences. So use root everywhere.
2016-01-12 17:27:40 +01:00
Eelco Dolstra
00903fa799 --check: Keep the differing output if -K is given
This makes it easier to investigate the non-determinism, e.g.

  $ nix-build pkgs/stdenv/linux -A stage1.pkgs.zlib --check -K
  error: derivation ‘/nix/store/l54i8wlw22656i4pk05c52ngv9rpl39q-zlib-1.2.8.drv’ may not be deterministic: output ‘/nix/store/11a27shh6n2ivi4a7s964i65ql80cf27-zlib-1.2.8’ differs from ‘/nix/store/11a27shh6n2ivi4a7s964i65ql80cf27-zlib-1.2.8-check’

  $ diffoscope /nix/store/11a27shh6n2ivi4a7s964i65ql80cf27-zlib-1.2.8 /nix/store/11a27shh6n2ivi4a7s964i65ql80cf27-zlib-1.2.8-check
  ...
  ├── lib/libz.a
  │   ├── metadata
  │   │ @@ -1,15 +1,15 @@
  │   │ -rw-r--r-- 30001/30000   3096 Jan 12 15:20 2016 adler32.o
  ...
  │   │ +rw-r--r-- 30001/30000   3096 Jan 12 15:28 2016 adler32.o
  ...
2016-01-12 16:44:26 +01:00
Eelco Dolstra
0cad1f8049 --check: Fix "failed to produce output path"
This occured when sandbox building is disabled, at least one output
exists, and at least one other output does not.
2016-01-12 15:13:47 +01:00
Eelco Dolstra
1c57ab8b31 --check: Fix assertion failure when some outputs are missing
E.g.

  $ nix-build pkgs/stdenv/linux/ -A stage1.pkgs.perl --check
  nix-store: src/libstore/build.cc:1323: void nix::DerivationGoal::tryToBuild(): Assertion `buildMode != bmCheck || validPaths.size() == drv->outputs.size()' failed.

when perl.out exists but perl.man doesn't. The fix is to only check
the outputs that exist. Note that "nix-build -A stage1.pkgs.all
--check" will still give a (proper) error in this case.
2016-01-12 14:54:39 +01:00
Eelco Dolstra
458711e4ee Fix "Bad address" executing build hook
This was observed in the deb_debian7x86_64 build:
http://hydra.nixos.org/build/29973215

Calling c_str() on a temporary should be fine because the temporary
shouldn't be destroyed until after the execl() call, but who knows...
2016-01-07 15:10:14 +01:00
Eelco Dolstra
9aac1861f7 Fix some signedness warnings 2016-01-07 14:37:39 +01:00
Eelco Dolstra
02a66b3fd7 nix-store --repair-path: Rebuild if there is no substituter 2016-01-06 22:07:59 +01:00
Eelco Dolstra
caaaff3954 Fix --repair failure on multiple-output derivations
If repair found a corrupted/missing path that depended on a
multiple-output derivation, and some of the outputs of the latter were
not present, it failed with a message like

  error: path ‘/nix/store/cnfn9d5fjys1y93cz9shld2xwaibd7nn-bash-4.3-p42-doc’ is not valid
2016-01-06 21:49:32 +01:00
Christian Theune
934642155c @eelco's feedback: downgrade to regular float for size, remove unused function. 2016-01-06 08:25:58 +01:00
Fabian Schmitthenner
39d1da7b51 Better error message
Also show types when nix cannot compare values of different types.
This is also more consistent since types are already shown when comparing values of the same not comparable type.
2016-01-05 14:13:54 +01:00
Eelco Dolstra
9a4706eb19 Fix compilation 2016-01-05 14:05:11 +01:00
Shea Levy
14080f3e4b Use __toString when coercing sets to strings.
For example, "${{ foo = "bar"; __toString = x: x.foo; }}" evaluates
to "bar".

With this, we can delay calling functions like mkDerivation,
buildPythonPackage, etc. until we actually need a derivation, enabling
overrides and other modifications to happen by simple attribute set
update.
2016-01-05 13:55:06 +01:00
Eelco Dolstra
6298afc047 Merge pull request #685 from vizanto/master
POSIX compliant directory access (fixes build on Solaris)
2016-01-05 13:49:55 +01:00
FrankHB
607d91517e Fixed unresolved 'BUFSIZ'
`BUFSIZ` is defined in header `<cstdio>`.
2016-01-05 13:33:40 +01:00
Eelco Dolstra
743e310046 Fix non-Darwin build 2016-01-05 13:31:15 +01:00
Vladimír Čunát
29c0199d5c manual: document builtins.functionArgs
The text is just a conversion of comment from src/libexpr/primops.cc
2016-01-05 13:29:17 +01:00
Tuomas Tynkkynen
f770b9e6c5 libstore: mmap() returns MAP_FAILED, not NULL on failure 2016-01-05 13:26:35 +01:00
Christian Theune
a12a43046b Edge condition: parser did not pick up floats starting exactly with 0. 2016-01-05 09:54:49 +01:00
Christian Theune
f872262e08 Fix up float parsing. 2016-01-05 09:46:37 +01:00
Christian Theune
494fc5acbb Try a simplified version of float lexing that didn't work.
The last one I tried was botchered anyway ...
2016-01-05 00:53:22 +01:00
Christian Theune
14ebde5289 First hit at providing support for floats in the language. 2016-01-05 00:40:40 +01:00
Eelco Dolstra
71a93a5f0e Don't allow sandbox profile except in relaxed mode
This makes Darwin consistent with Linux: Nix expressions can't break
out of the sandbox unless relaxed sandbox mode is enabled.

For the normal sandbox mode this will require fixing #759 however.
2016-01-04 20:01:13 +01:00
Eelco Dolstra
77ad443bd1 ~PathLocks(): Handle exceptions
Otherwise, since the call to write a "d" character to the lock file
can fail with ENOSPC, we can get an unhandled exception resulting in a
call to terminate().
2016-01-04 11:34:36 +01:00
Eelco Dolstra
b8258a4475 Fix regression in passAsFile
Caused by 8063fc497a. If tmpDir !=
tmpDirInSandbox (typically when there are multiple concurrent builds
with the same name), the *Path attribute would not point to an
existing file. This caused Nixpkgs' writeTextFile to write an empty
file. In particular this showed up as hanging VM builds (because it
would run an empty run-nixos-vm script and then wait for it to finish
booting).
2015-12-29 15:28:20 +01:00
Eelco Dolstra
52120123a5 Handle /tmp being a symlink
Hopefully fixes Darwin sandbox regression introduced in
8063fc497a.
2015-12-22 17:16:17 +01:00
Eelco Dolstra
68fd01f42a Don't ignore sodium_init() return value 2015-12-22 17:14:04 +01:00
Eelco Dolstra
f696af0fab Fix bad error message in Darwin chroots 2015-12-22 17:05:29 +01:00
Eelco Dolstra
a9faa7bbce showId: Handle empty attribute names
We should probably disallow these, but until then, we shouldn't barf
with an assertion failure.

Fixes #738.
2015-12-17 15:15:28 +01:00
Eelco Dolstra
8f67325a7c Build sandbox support etc. unconditionally on Linux
Also, use "#if __APPLE__" instead of "#if SANDBOX_ENABLED" to prevent
ambiguity.
2015-12-10 11:47:17 +01:00
Bjørn Forsman
65bd82d42a Clarify error message for hash mismatches (again)
This is arguably nitpicky, but I think this new formulation is even
clearer. My thinking is that it's easier to comprehend when the
calculated hash value is displayed close to the output path. (I think it
is somewhat similar to eliminating double negatives in logic
statements.)

The formulation is inspired / copied from the OpenEmbedded build tool,
bitbake.
2015-12-08 19:50:25 +01:00
Ludovic Courtès
d1e3bf01bc daemon: Add 'buildMode' parameter to 'buildPaths' RPC 2015-12-02 18:14:49 +01:00
Eelco Dolstra
8063fc497a Use deterministic $TMPDIR in sandbox
Rather than using $<host-TMPDIR>/nix-build-<drvname>-<number>, the
temporary directory is now always /tmp/nix-build-<drvname>-0. This
improves bitwise-exact reproducibility for builds that store $TMPDIR
in their build output. (Of course, those should still be fixed...)
2015-12-02 15:04:00 +01:00
Danny Wilson
69b9d8fdbd Use DT_UNKNOWN when dirent d_type extension is not supported.
edolstra:
“…since callers of readDirectory have to handle the possibility of
 DT_UNKNOWN anyway, and we don't want to do a stat call for every
 directory entry unless it's really needed.”
2015-11-25 21:57:19 +01:00
Shea Levy
f327970129 Merge branch 'auto-call-functor'
autoCallFunction now auto-calls functors
2015-11-25 11:57:31 -05:00
Shea Levy
9533532ce2 autoCallFunction: Auto-call functors 2015-11-25 11:56:14 -05:00
Eelco Dolstra
0ab4d905e7 Merge branch 'p/sandbox-rename-minimal' of https://github.com/vcunat/nix 2015-11-25 14:53:42 +01:00
Eelco Dolstra
a0f0733413 Fix build failure introduced by #704
Also, make the FreeBSD checks conditional on FreeBSD.
2015-11-25 14:41:19 +01:00
Eelco Dolstra
afef347157 Merge pull request #712 from pSub/print-meta-license
Print license information on '--xml --meta'
2015-11-25 14:00:52 +01:00
Eelco Dolstra
cad40adce5 Merge pull request #704 from ysangkok/freebsd-support
FreeBSD support with knowledge about Linux emulation
2015-11-24 19:24:21 +01:00
Jude Taylor
279fa8f618 reintroduce host deps in tandem with sandbox profiles 2015-11-21 15:57:06 -08:00
Shea Levy
e0bd114e09 Revert "remove sandbox-defaults.sb"
As discussed in NixOS/nixpkgs#11001, we still need some of the old
sandbox mechanism.

This reverts commit d760c2638c.
2015-11-21 16:40:24 -05:00
Pascal Wittmann
4921223160 Print license information on '--xml --meta'
The nixpkgs manual prescribes the use of values from stdenv.lib.licenses
for the meta.license attribute. Those values are attribute sets and
currently skipped when running nix-env with '--xml --meta'. This has the
consequence that also nixpkgs-lint will report missing licenses.

With this commit nix-env with '--xml --meta' will print all attributes
of an attribute set that are of type tString. For example the output for
the package nixpkgs.hello is

    <meta name="license" type="strings">
      <string type="url" value="http://spdx.org/licenses/GPL-3.0+" />
      <string type="shortName" value="gpl3Plus" />
      <string type="fullName" value="GNU General Public License v3.0 or later" />
      <string type="spdxId" value="GPL-3.0+" />
    </meta>

This commit fixes nixpkgs-lint, too.
2015-11-21 11:43:44 +01:00
Jude Taylor
b9b7bb1806 re-fix permissions for GHC 2015-11-19 16:06:21 -08:00
Shea Levy
5deb7fbdfb Merge branch 'sandbox-profiles' of git://github.com/pikajude/nix
Temporarily allow derivations to describe their full sandbox profile.
This will be eventually scaled back to a more secure setup, see the
discussion at #695
2015-11-19 17:44:11 -05:00
Peter Simons
6ad10591ce src/libstore/build.cc: clarify error message for hash mismatches
Nix reports a hash mismatch saying:

  output path ‘foo’ should have sha256 hash ‘abc’, instead has ‘xyz’

That message is slightly ambiguous and some people read that statement
to mean the exact opposite of what it is supposed to mean. After this
patch, the message will be:

  Nix expects output path ‘foo’ to have sha256 hash ‘abc’, instead it has ‘xyz’
2015-11-19 12:42:37 +01:00
janus
8a74a125bc FreeBSD can build Linux 32-bit binaries 2015-11-17 14:16:08 +00:00
Shea Levy
1d3529e93a Default arguments belong at declaration, not definition 2015-11-16 05:55:55 -05:00
Shea Levy
9b4cd20752 Fix copy-paste error 2015-11-16 05:54:34 -05:00
Shea Levy
58d2fac91d AutoDelete: Add default constructor with deletion disabled 2015-11-16 05:53:10 -05:00
Shea Levy
4390142315 Use AutoDelete for sandbox profile file 2015-11-15 06:08:50 -05:00
Jude Taylor
bd09a4c967 simplify build.cc using modern C++ features 2015-11-14 14:11:03 -08:00
Jude Taylor
4876bb012e simplify build permissions 2015-11-14 14:11:03 -08:00
Jude Taylor
d760c2638c remove sandbox-defaults.sb 2015-11-14 14:11:03 -08:00
Jude Taylor
8a7f0dfd68 use per-derivation sandbox profiles 2015-11-14 14:10:43 -08:00
Vladimír Čunát
b39622a487 rename chroot to sandbox (fixes #656, close #682)
- rename options but leav old names as lower-priority aliases,
  also "-dirs" -> "-paths" to get closer to the meaning
- update docs to reflect the new names (old aliases are not documented),
  including a new file with release notes
- tests need an update after corresponding changes to nixpkgs
- __noChroot is left as it is (after discussion on the PR)
2015-11-10 22:32:51 +01:00
Eelco Dolstra
8fdd156a65 Add option to verify build determinism
Passing "--option build-repeat <N>" will cause every build to be
repeated N times. If the build output differs between any round, the
build is rejected, and the output paths are not registered as
valid. This is primarily useful to verify build determinism. (We
already had a --check option to repeat a previously succeeded
build. However, with --check, non-deterministic builds are registered
in the DB. Preventing that is useful for Hydra to ensure that
non-deterministic builds don't end up getting published at all.)
2015-11-09 23:16:24 +01:00
Eelco Dolstra
96c2ebf004 Revert "Allow using /bin and /usr/bin as impure prefixes on non-darwin by default"
This reverts commit 79ca503332. Ouch,
never noticed this. We definitely don't want to allow builds to have
arbitrary access to /bin and /usr/bin, because then they can (for
instance) bring in a bunch of setuid programs. Also, we shouldn't be
encouraging the use of impurities in the default configuration.
2015-11-09 21:28:38 +01:00
Eelco Dolstra
4384bbd2e1 optimizePath(): Detect some .links corruption
If automatic store optimisation is enabled, and a hard-linked file in
the store gets corrupted, then the corresponding .links entry will
also be corrupted. In that case, trying to repair with --repair or
--repair-path won't work, because the new "good" file will be replaced
by a hard link to the corrupted file. We can catch most of these cases
by doing a sanity-check on the file sizes.
2015-11-09 21:28:25 +01:00
Eelco Dolstra
7759a56bed Fix namespace issue 2015-11-09 21:28:25 +01:00
Danny Wilson
cdb346c65e Fix build on Solaris
d_type is not part of the POSIX spec unfortunately.
2015-11-07 04:51:33 +01:00
Shea Levy
5bc12454fd Merge branch 'master' of https://github.com/pikajude/nix
> I made this change for two reasons:

> 1. Darwin's locale data doesn't appear to be open source
> 2. Privileged processes will always use /usr/share/locale regardless of environment variables
2015-11-04 17:27:19 -05:00
Eelco Dolstra
6f1743b1a5 Support SHA-512 hashes
Fixes #679.

Note: on x86_64, SHA-512 is considerably faster than SHA-256 (198 MB/s
versus 131 MB/s).
2015-11-04 16:37:49 +01:00
Eelco Dolstra
a6ca68a70c Require OpenSSL 2015-11-04 16:37:49 +01:00
Jude Taylor
c10ef2d134 fix syntax error 2015-11-03 09:03:32 -08:00
Jude Taylor
3b52e54e31 darwin: allow reading system locale and zoneinfo 2015-11-03 08:43:09 -08:00
Jude Taylor
d6bd51ffbe allow reading ICU data 2015-10-31 02:52:42 -07:00
Jude Taylor
95c66cc950 add special devices to sandbox-defaults 2015-10-30 20:32:11 -07:00
Eelco Dolstra
1f735a3440 <nix/fetchurl.nix>: Support xz-compressed NARs 2015-10-30 12:34:30 +01:00
Eelco Dolstra
dae5dc7ade <nix/fetchurl.nix>: Support downloading and unpacking NARs
This removes the need to have multiple downloads in the stdenv
bootstrap process (like a separate busybox binary for Linux, or
curl/mkdir/sh/bzip2 for Darwin). Now all those files can be combined
into a single NAR.
2015-10-30 11:27:47 +01:00
Eelco Dolstra
5c28943e8f int2String() -> std::to_string() 2015-10-29 13:26:55 +01:00
Eelco Dolstra
45b2f32cc1 Merge pull request #668 from svanderburg/master
Fix compilation error due to missing ENOENT on cygwin
2015-10-26 11:12:01 +01:00
Jude Taylor
9155fbd386 use nixDataDir instead of appending /share to PREFIX 2015-10-21 14:44:44 -07:00
Jude Taylor
af1218a86a revert libutil change 2015-10-21 14:40:35 -07:00
Jude Taylor
992cda1b11 clarifying comment 2015-10-21 14:39:16 -07:00
Jude Taylor
76f3ba42fd move preBuildHook defaulting to globals.cc 2015-10-21 14:39:08 -07:00
Jude Taylor
2dc8e19a17 restore old DEFAULT_ALLOWED_IMPURE_PREFIXES 2015-10-21 14:38:49 -07:00
Jude Taylor
ff6953cb03 Add resolve-system-dependencies.pl 2015-10-21 12:38:52 -07:00
Jude Taylor
15c7a79ed3 remove usr paths from allowed inputs 2015-10-21 12:38:52 -07:00
Jude Taylor
5bf4085000 allow access to SystemVersion for python builders 2015-10-21 12:38:52 -07:00
Jude Taylor
6a8cee19b3 fix line reading in preBuildHook 2015-10-21 12:38:52 -07:00
Jude Taylor
1fc0fe1baf remove sandbox defaults into a new file 2015-10-21 12:38:52 -07:00
Jude Taylor
d4cac051f7 restore allowed impure prefixes 2015-10-21 12:38:52 -07:00
Jude Taylor
4b8c71b4ef remove an unneeded default impure-dep 2015-10-21 12:38:52 -07:00
Jude Taylor
e770f941d6 make sandbox builds more permissive 2015-10-21 12:38:52 -07:00
Jude Taylor
1ea2aa9e99 add a few more permissions 2015-10-21 12:38:52 -07:00
Eelco Dolstra
f5b32ff47d Allow builtin fetchurl regardless of the derivation's system attribute 2015-10-21 15:14:42 +02:00
Eelco Dolstra
01615b5f63 Show progress indicator for builtin fetchurl 2015-10-21 15:14:42 +02:00
Eelco Dolstra
5db358d4d7 Disable TLS verification for builtin fetchurl
This makes it consistent with the Nixpkgs fetchurl and makes it work
in chroots. We don't need verification because the hash of the result
is checked anyway.
2015-10-21 15:14:42 +02:00
Eelco Dolstra
357d31b339 Fix segfault in builtin fetchurl
The stack allocated for the builder was way too small (32 KB). This is
sufficient for normal derivations, because they just do some setup and
then exec() the actual builder. But for the fetchurl builtin
derivation it's not enough. Also, allocating the stack on the caller's
stack was fishy business.
2015-10-21 15:14:42 +02:00
Sander van der Burg
058d1950c0 Fix compilation error due to missing ENOENT on cygwin 2015-10-18 19:04:24 +00:00
Tuomas Tynkkynen
2075ec83e3 Allow building ARMv6 stuff on ARMv7
This allows building a Raspberry Pi image on modern, faster boards.
2015-10-08 13:32:28 +02:00
Eelco Dolstra
51cf4455b2 isFunctor: Simplify 2015-10-08 13:22:11 +02:00
Mathnerd314
8a87521636 forceFunction: allow functors as well 2015-10-08 13:19:44 +02:00
Eelco Dolstra
14f7e1fc42 Revert to CURLOPT_PROGRESSFUNCTION
CURLOPT_XFERINFOFUNCTION isn't widely supported yet.

http://hydra.nixos.org/build/26679495
2015-10-08 13:15:21 +02:00
Eelco Dolstra
21ecd106ed Show progress during downloads 2015-10-07 17:31:50 +02:00
Eelco Dolstra
f08449ccbd nix-prefetch-url: Add --name option
This allows overriding the name component of the resulting Nix store
path, which is necessary if the base name of the URI contains
"illegal" characters.
2015-10-07 14:55:33 +02:00
Eelco Dolstra
e4abf8610b nix-prefetch-url -A: Use "name" attribute from Nix expression
This is in particular useful for fetchFromGitHub et al., ensuring that
the store path produced by nix-prefetch-url corresponds to what those
functions expect.
2015-10-07 14:47:39 +02:00
Eelco Dolstra
b54f447df9 nix-prefetch-url: Support unpacking tarballs
This allows nix-prefetch-url to prefetch the output of fetchzip and
its wrappers (like fetchFromGitHub). For example:

  $ nix-prefetch-url --unpack https://github.com/NixOS/patchelf/archive/0.8.tar.gz

or from a Nix expression:

  $ nix-prefetch-url -A nix-repl.src

In the latter case, --unpack can be omitted because nix-repl.src is a
fetchFromGitHub derivation and thus has "outputHashMode" set to
"recursive".
2015-10-07 14:40:10 +02:00
Manuel Jacob
7888b2ba15 Define SOL_LOCAL if not defined already (e.g. on FreeBSD).
Some evidence that defining it to be 0 is right:
* OS X headers define it to be 0.
* Other code uses 0 instead of SOL_LOCAL to check for peer credentials
  (e.g. FreeBSD's implementation of getpeereid).
2015-10-06 22:28:30 +02:00
Manuel Jacob
12c1776df9 Don't try to link libdl on FreeBSD.
There is no libdl on FreeBSD.  Instead the symbols are included in libc.
2015-10-06 22:28:30 +02:00
Manuel Jacob
cbc177ca01 Use pkg-config-provided LDFLAGS for libsqlite3 and libcurl.
Previously, pkg-config was already queried for libsqlite3's and
libcurl's link flags.  However they were not used, but hardcoded
instead.  This commit replaces the hardcoded LDFLAGS by the ones
provided by pkg-config in a similar pattern as already used for
libsodium.
2015-10-06 22:28:30 +02:00
Eelco Dolstra
1abda8e173 nix-store --serve: Implement log size limit 2015-10-06 17:33:30 +02:00
Eelco Dolstra
06f29fafe8 nix-prefetch-url: Support prefetching from a Nix expression
For example,

  $ nix-prefetch-url -A hello.src

will prefetch the file specified by the fetchurl call in the attribute
‘hello.src’ from the Nix expression in the current directory. This
differs from ‘nix-build -A hello.src’ in that it doesn't verify the
hash.

You can also specify a path to the Nix expression:

  $ nix-prefetch-url ~/Dev/nixpkgs -A hello.src

List elements (typically used in ‘patches’ attributes) also work:

  $ nix-prefetch-url -A portmidi.patches.0
2015-10-01 18:07:56 +02:00
Eelco Dolstra
a3c4eb0964 nix-prefetch-url: $PRINT_PATH -> --print-path 2015-10-01 16:53:07 +02:00
Eelco Dolstra
bec3c31608 nix-prefetch-url: Rewrite in C++ 2015-10-01 16:47:43 +02:00
Eelco Dolstra
4ba6bc184c Shut up clang warnings 2015-09-18 01:22:35 +02:00
Vladimír Čunát
42808fa281 nix-env --upgrade: show "downgrading" when doing so
It was strange to show "upgrading" when the version was getting lower.
This is left on "upgrading" when the versions are the same,
as I can't see any better wording.
2015-09-17 12:09:54 +02:00
Vladimír Čunát
64f9b511be nix-env --upgrade: avoid unexpected downgrades
Until now, if one explicitly installed a low-priority version,
nix-env --upgrade would downgrade it by default and even with --leq.
Let's never accept an upgrade with version not matching the upgradeType.
Additionally, let's never decrease the priority of an installed package;
you can use --install to force that.

Also refactor to use variable bestVersion instead of bestName,
as only version was used from it.
2015-09-17 12:06:26 +02:00
Eelco Dolstra
71a5161365 Implement buildDerivation() via the daemon 2015-09-03 12:56:59 +02:00
Eelco Dolstra
73332fd342 Filter build-chroot-dirs entries that conflict with derivation outputs
Fixes https://github.com/NixOS/nixpkgs/issues/9504.

Note that this means we may have a non-functional /bin/sh in the
chroot while rebuilding Bash or one of its dependencies. Ideally those
packages don't rely on /bin/sh though.
2015-09-02 14:54:12 +02:00
Eelco Dolstra
d711fe8f5e Remove unused variable 2015-09-02 14:46:04 +02:00
Eelco Dolstra
e12cf82782 Prevent .chroot from being GC'ed when using LocalStore::buildDerivation()
Fixes #616.
2015-08-24 11:13:31 +02:00
Eelco Dolstra
eadb86f447 nix-collect-garbage: Revive --max-freed
Fixes #609.
2015-08-21 13:57:53 +02:00
Manolis Ragkousis
26221e44eb Remove unneeded HAVE_UNSHARE.
* src/libstore/build.cc (CHROOT_ENABLED): Remove HAVE_UNSHARE.
2015-08-19 14:11:15 +03:00
Kirill Elagin
3b0f60e5c2 baseNameOf: Enhance basename compatibility
* If the path ends with a slash, drop it.
* If the remaining path doesn’t contain slashes, just return it.

Fixes #574.
2015-08-07 03:35:02 +02:00
Eelco Dolstra
34dfbd9394 Don't include <iostream> before config.h
This breaks the build on 32-bit systems.

http://hydra.nixos.org/build/24373658
2015-08-04 11:12:31 +02:00
Eelco Dolstra
30d19a2bdc Handle debug messages from runChild()
Turns out that "nix-build -vvv" with chroots enabled has been broken
for some time, because some debug message got interpreted as an error.
2015-08-03 18:04:32 +02:00
Iwan Aucamp
3db950aab7 Removed unnecessary included 2015-08-03 11:48:34 +02:00
Eelco Dolstra
2bac04c5ff Fix stack consumption 2015-07-31 20:28:25 +02:00
Iwan Aucamp
75837651f1 Output line number on infinite recursion 2015-07-31 20:26:44 +02:00
Eelco Dolstra
76cc8e97a2 Add sort primop 2015-07-28 18:39:39 +02:00
Eelco Dolstra
50807f3dd5 Add primop genList
This can be used to implement functions like ‘imap’ (or for that
matter, ‘map’) without the quadratic complexity incurred by calling
‘++’ repeatedly.
2015-07-28 17:28:35 +02:00
Eelco Dolstra
f3dda728a4 Remove unnecessary parentheses 2015-07-26 12:07:14 +02:00
Eelco Dolstra
d6d5885c15 Add replaceStrings primop
This is a generalisation of replaceChars in Nixpkgs.
2015-07-24 15:32:24 +02:00
Eelco Dolstra
2e8fd4c5cd Add concatStringsSep as a primop
This fixes the quadratic behaviour of concatStrings/concatStringsSep
in Nixpkgs.
2015-07-24 02:38:09 +02:00
Eelco Dolstra
cb4320c1a0 Cleanup 2015-07-23 23:14:07 +02:00
Eelco Dolstra
c8bb2371eb Optimize empty sets
This reduces the number of Bindings allocations by about 10%.
2015-07-23 23:11:08 +02:00
Eelco Dolstra
16c9935fa9 Fix fetchurl of executable file
Pointed out by @cstrahan, thanks!
2015-07-23 22:25:04 +02:00
Eelco Dolstra
19eddecc0f Merge branch 'attr-set-hh' of https://github.com/nbp/nix
Conflicts:
	src/libexpr/eval.cc
2015-07-23 22:16:01 +02:00
Eelco Dolstra
b83801f8b3 Optimize small lists
The value pointers of lists with 1 or 2 elements are now stored in the
list value itself. In particular, this makes the "concatMap (x: if
cond then [(f x)] else [])" idiom cheaper.
2015-07-23 22:05:09 +02:00
Eelco Dolstra
14be783676 Add primops all and any
These are used thousands of times during NixOS evaluation, so it's
useful to speed them up.
2015-07-23 19:23:11 +02:00
Shea Levy
39e27a04b8 Importing derivations: Add name attribute to make a valid drv 2015-07-23 17:04:07 +02:00
Shea Levy
1ed55234d9 Allow derivations-as-srcs in the context of builtins.toFile files 2015-07-23 17:03:47 +02:00
Eelco Dolstra
61af14a921 Add foldl' primop 2015-07-23 17:03:02 +02:00
Eelco Dolstra
887bb5fa5a --version: Print some config info
Such as whether Nix is built with signed binary cache support, and the
location of the configuration file.
2015-07-23 14:38:00 +02:00
Eelco Dolstra
1993b10d11 Fix Darwin build
Turns out getgrouplist() is not POSIX.

http://hydra.nixos.org/build/23881243
2015-07-21 14:45:24 +02:00
Eelco Dolstra
0a2bee307b Make <nix/fetchurl.nix> a builtin builder
This ensures that 1) the derivation doesn't change when Nix changes;
2) the derivation closure doesn't contain Nix and its dependencies; 3)
we don't have to rely on ugly chroot hacks.
2015-07-20 04:38:46 +02:00
Eelco Dolstra
eda2f36c2a Provide more detailed info about build status to hydra-queue-runner
In particular, hydra-queue-runner can now distinguish between remote
build / substitution / already-valid. For instance, if a path already
existed on the remote side, we don't want to store a log file.
2015-07-20 03:20:03 +02:00
Eelco Dolstra
ccf31dbc25 nix-copy-closure: Add -v flag
And make exportPath() less spammy by default.
2015-07-20 01:52:07 +02:00
Eelco Dolstra
db55940d9e Support systemd log severity prefixes
This is mostly useful for hydra-queue-runner.
2015-07-20 01:39:48 +02:00
Eelco Dolstra
b3491c781c More cleanup 2015-07-20 01:16:16 +02:00
Eelco Dolstra
6bd2c7bb38 OCD: foreach -> C++11 ranged for 2015-07-17 20:13:56 +02:00
Eelco Dolstra
1511aa9f48 Allow remote builds without sending the derivation closure
Previously, to build a derivation remotely, we had to copy the entire
closure of the .drv file to the remote machine, even though we only
need the top-level derivation. This is very wasteful: the closure can
contain thousands of store paths, and in some Hydra use cases, include
source paths that are very large (e.g. Git/Mercurial checkouts).

So now there is a new operation, StoreAPI::buildDerivation(), that
performs a build from an in-memory representation of a derivation
(BasicDerivation) rather than from a on-disk .drv file. The only files
that need to be in the Nix store are the sources of the derivation
(drv.inputSrcs), and the needed output paths of the dependencies (as
described by drv.inputDrvs). "nix-store --serve" exposes this
interface.

Note that this is a privileged operation, because you can construct a
derivation that builds any store path whatsoever. Fixing this will
require changing the hashing scheme (i.e., the output paths should be
computed from the other fields in BasicDerivation, allowing them to be
verified without access to other derivations). However, this would be
quite nice because it would allow .drv-free building (e.g. "nix-env
-i" wouldn't have to write any .drv files to disk).

Fixes #173.
2015-07-17 17:57:40 +02:00
Eelco Dolstra
f39979c6d3 Make printValue() interruptible
Fixes #572.
2015-07-17 11:33:39 +02:00
Eelco Dolstra
7c9d0a5969 nix-collect-garbage: Handle ENOENT
Don't barf trying to read a link that just got deleted.

Fixes #575.
2015-07-17 11:24:25 +02:00
Nicolas B. Pierron
db21cfa688 Move attribute set data structures into their own header file.
This modification moves Attr and Bindings structures into their own header
file which is dedicated to the attribute set representation. The goal of to
isolate pieces of code which are related to the attribute set
representation. Thus future modifications of the attribute set
representation will only have to modify these files, and not every other
file across the evaluator.
2015-07-14 19:23:17 +02:00
Guillaume Maudoux
467977f203 Fix the parsing of "$"'s in strings. 2015-07-03 14:09:58 +02:00
Guillaume Maudoux
65e4dcd69b Fix the hack that resets the scanner state. 2015-07-03 13:53:36 +02:00
Eelco Dolstra
dd48c06bb6 Typo 2015-07-02 00:30:16 +02:00
Ludovic Courtès
9aed117395 Preserve supplementary groups of build users
The following patch is an attempt to address this bug (see
<http://bugs.gnu.org/18994>) by preserving the supplementary groups of
build users in the build environment.

In practice, I would expect that supplementary groups would contain only
one or two groups: the build users group, and possibly the “kvm” group.

[Changed &at(0) to data() and removed tabs - Eelco]
2015-07-01 14:57:48 +02:00
Eelco Dolstra
ff4de4cb27 GC: Handle ENOSPC creating/moving to the trash directory
Issue #564.
2015-06-30 21:41:26 +02:00
Eelco Dolstra
2bc9c84327 Use posix_fallocate to create /nix/var/nix/db/reserved 2015-06-22 15:54:55 +02:00
Eelco Dolstra
ba63ec6f39 Make /nix/var/nix/db/reserved bigger
Issue #564.
2015-06-22 15:47:40 +02:00
Eelco Dolstra
65f17cd330 Support URLs in $NIX_PATH
This didn't work (despite claims in the manual), because the colon in
"http://" was parsed as a element separator. So handle "://"
specially.
2015-06-17 16:20:11 +02:00
Eelco Dolstra
b65875f859 Export outputPaths function
This is useful for the new hydra-queue-runner.
2015-06-10 16:17:06 +02:00
Eelco Dolstra
7c4501886d Use std::vector::data() 2015-06-09 10:54:46 +02:00
Eelco Dolstra
b64988bb35 Allow substitutes for builds that have preferLocalBuild set
Not substituting builds with "preferLocalBuild = true" was a bad idea,
because it didn't take the cost of dependencies into account. For
instance, if we can't substitute a fetchgit call, then we have to
download/build git and all its dependencies.

Partially reverts 5558652709 and adds a
new derivation attribute "allowSubstitutes" to specify whether a
derivation may be substituted.
2015-06-04 16:30:22 +02:00
Eelco Dolstra
07d7e7df84 Chown files created for passAsFile
Nixpkgs' writeTextAsFile does this:

  mv "$textPath" "$n"

Since $textPath was owned by root, if $textPath is on the same
filesystem as $n, $n will be owned as root. As a result, the build
result was rejected as having suspicious ownership.

http://hydra.nixos.org/build/22836807
2015-06-04 14:07:43 +02:00
Eelco Dolstra
d8ddf994e7 Don't let unprivileged users repair paths 2015-06-02 02:21:54 +02:00
Eelco Dolstra
7106bb0611 Use StoreAPI::verifyStore() 2015-06-02 02:21:15 +02:00
Ludovic Courtès
b755752f76 Add a ‘verifyStore’ RPC
Hello!

The patch below adds a ‘verifyStore’ RPC with the same signature as the
current LocalStore::verifyStore method.

Thanks,
Ludo’.

>From aef46c03ca77eb6344f4892672eb6d9d06432041 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Mon, 1 Jun 2015 23:17:10 +0200
Subject: [PATCH] Add a 'verifyStore' remote procedure call.
2015-06-02 02:14:24 +02:00
Eelco Dolstra
bc51175dc0 Add tarball tests 2015-06-01 16:18:23 +02:00
Eelco Dolstra
da196ec68f Document tarball downloading 2015-06-01 15:14:44 +02:00
Eelco Dolstra
c1323b53e3 Fix fetchurl/fetchTarball 2015-06-01 15:08:09 +02:00
Eelco Dolstra
1c88e100e7 readFile: Check against nul bytes 2015-06-01 15:07:42 +02:00
Eelco Dolstra
920f5fd4dd Fix import-from-derivation in restricted eval mode
This relaxes restricted mode to allow access to anything in the
store. In the future, it would be better to allow access to only paths
that have been constructed in the current evaluation (so a hard-coded
/nix/store/blabla in a Nix expression would still be
rejected). However, note that reading /nix/store itself is still
rejected, so you can't use this so get access to things you don't know
about.
2015-05-22 12:18:23 +02:00
Eelco Dolstra
7a411e01cf Remove dead code 2015-05-22 11:29:22 +02:00
Eelco Dolstra
4ca5a9dcfd nix-collect-garbage: Don't call nix-env
Also, make sure --delete-older-than doesn't delete the current
generation.
2015-05-21 16:28:30 +02:00
Eelco Dolstra
22b1a8d43f Move profiles.{cc,hh} to libstore 2015-05-21 15:42:59 +02:00
Eelco Dolstra
13493ef97c nix-collect-garbage: Call collectGarbage() internally 2015-05-21 15:21:38 +02:00
Eelco Dolstra
4441e4cc13 nix-collect-garbage: Don't barf on unreadable directories
And don't try to delete generations from unwritable directories.
2015-05-21 15:04:05 +02:00
Eelco Dolstra
8d813fe3e0 nix-collect-garbage: Remove redundant call to getFileType 2015-05-21 14:09:34 +02:00
Eelco Dolstra
a1c1bf3a56 Merge branch 'submit/sparse-generation-symlinks' of https://github.com/ctheune/nix 2015-05-21 12:04:54 +02:00
Christian Theune
12a888894b Mis-read Eelko's request to not make this an option: now, let's not make
it an option. :)
2015-05-20 17:29:52 +02:00
Christian Theune
ea39c98d41 Implement alternative to lazy generations:
* only the last generation can be lazy
* depend on the '--lazy-generation' flag to be set
2015-05-19 20:03:36 +02:00
Eelco Dolstra
1529db702b Don't install nix-worker symlink
It has been obsolete since Nix 1.2.

Closes #417.
2015-05-19 16:43:33 +02:00
Christian Theune
3d83188702 Enable lazy/sparse allocation of generation symlinks: avoid creating
new generations if a generation already exists.

Alternatively or additionally I propose a mode where only the *last* generation will be sparse.
2015-05-18 08:38:49 +02:00
Eelco Dolstra
a010c0ae05 Fix "error: deriver of path ‘’ is not known" 2015-05-13 18:03:22 +02:00
Rok Garbas
dad754843a cygwin: looks like stdout/stdin are reserved words 2015-05-13 09:37:56 +02:00
Rok Garbas
000de699e9 cygwin: explicitly include required c headers 2015-05-13 09:37:12 +02:00
Shea Levy
71083f9e5e Don't try to map /bin/sh to a store path on non-Linux 2015-05-12 16:36:15 -04:00
Luca Bruno
8972f7c14a nix-collect-garbage: Do not pass an empty argument. Closes #530 2015-05-06 15:17:23 +00:00
Eelco Dolstra
6519f06f39 nix-env/nix-instantiate/nix-build: Support URIs
For instance, you can install Firefox from a specific Nixpkgs revision
like this:

  $ nix-env -f 63def04891.tar.gz -iA firefox

Or build a package from the latest nixpkgs-unstable channel:

  $ nix-build https://nixos.org/channels/nixpkgs-unstable/nixexprs.tar.xz -A hello
2015-05-06 14:54:31 +02:00
William A. Kennington III
0705d04dfa nix-collect-garbage: Fix deleting old generations
The call to nix-env expects a string which represents how old the
derivations are or just "old" which means any generations other than
the current one in use. Currently nix-collect-garbage passes an empty
string to nix-env when using the -d option. This patch corrects the call
to nix-env such that it follows the old behavior.
2015-05-06 11:02:36 +02:00
Eelco Dolstra
9451ef3731 Allow URLs in the Nix search path
E.g. to install "hello" from the latest Nixpkgs:

  $ nix-build '<nixpkgs>' -A hello -I nixpkgs=https://nixos.org/channels/nixpkgs-unstable/nixexprs.tar.xz

Or to install a specific version of NixOS:

  $ nixos-rebuild switch -I nixpkgs=63def04891.tar.gz
2015-05-05 17:09:42 +02:00
Eelco Dolstra
35d30d67eb Make downloads interruptable 2015-05-05 14:39:48 +02:00
Luca Bruno
ab2b3d6668 nix-collect-garbage: translate to C++ 2015-04-22 15:08:48 +00:00
Shea Levy
4d652875bd Add the pre-build hook.
This hook can be used to set system-specific per-derivation build
settings that don't fit into the derivation model and are too complex or
volatile to be hard-coded into nix. Currently, the pre-build hook can
only add chroot dirs/files through the interface, but it also has full
access to the chroot root.

The specific use case for this is systems where the operating system ABI
is more complex than just the kernel-support system calls. For example,
on OS X there is a set of system-provided frameworks that can reliably
be accessed by any program linked to them, no matter the version the
program is running on. Unfortunately, those frameworks do not
necessarily live in the same locations on each version of OS X, nor do
their dependencies, and thus nix needs to know the specific version of
OS X currently running in order to make those frameworks available. The
pre-build hook is a perfect mechanism for doing just that.
2015-04-18 16:56:02 -04:00
Shea Levy
fd6774e285 Revert "Add the pre-build hook."
Going to reimplement differently.

This reverts commit 1e4a4a2e9f.
2015-04-18 14:59:58 -04:00
Eelco Dolstra
035aeb9547 Fix using restricted mode with chroots 2015-04-16 18:46:17 +02:00
Shea Levy
1e4a4a2e9f Add the pre-build hook.
This hook can be used to set system specific per-derivation build
settings that don't fit into the derivation model and are too complex or
volatile to be hard-coded into nix. Currently, the pre-build hook can
only add chroot dirs/files.

The specific use case for this is systems where the operating system ABI
is more complex than just the kernel-supported system calls. For
example, on OS X there is a set of system-provided frameworks that can
reliably be accessed by any program linked to them, no matter the
version the program is running on. Unfortunately, those frameworks do
not necessarily live in the same locations on each version of OS X, nor
do their dependencies, and thus nix needs to know the specific version
of OS X currently running in order to make those frameworks available.
The pre-build hook is a perfect mechanism for doing just that.
2015-04-12 12:56:38 -04:00
Eelco Dolstra
4ed2187377 Use cached result if there is a network error 2015-04-09 12:49:13 +02:00
Eelco Dolstra
1fc905ad4c Move curl stuff into a separate file 2015-04-09 12:12:50 +02:00
Eelco Dolstra
c1f04fae35 Implement a TTL on cached fetchurl/fetchTarball results
This is because we don't want to do HTTP requests on every evaluation,
even though we can prevent a full redownload via the cached ETag. The
default is one hour.
2015-04-09 11:55:36 +02:00
Eelco Dolstra
60340ce3e2 Implement caching of fetchurl/fetchTarball results
ETags are used to prevent redownloading unchanged files.
2015-04-09 11:42:04 +02:00
Eelco Dolstra
1711679ea5 Revert /nix/store permission back to 01775
This broke NixOS VM tests.

Mostly reverts 27b7b94923,
5ce50cd99e,
afa433e58c.
2015-04-07 13:21:26 +02:00
Eelco Dolstra
afa433e58c Chroot builds: Provide world-readable /nix/store
This was causing NixOS VM tests to fail mysteriously since
5ce50cd99e. Nscd could (sometimes) no
longer read /etc/hosts:

open("/etc/hosts", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)

Probably there was some wacky interaction between the guest kernel and
the 9pfs implementation in QEMU.
2015-04-02 16:59:40 +02:00
Eelco Dolstra
000b5a000f Add fetchTarball builtin
This function downloads and unpacks the given URL at evaluation
time. This is primarily intended to make it easier to deal with Nix
expressions that have external dependencies. For instance, to fetch
Nixpkgs 14.12:

  with import (fetchTarball https://github.com/NixOS/nixpkgs-channels/archive/nixos-14.12.tar.gz) {};

Or to fetch a specific revision:

  with import (fetchTarball 2766a4b44e.tar.gz) {};

This patch also adds a ‘fetchurl’ builtin that downloads but doesn't
unpack its argument. Not sure if it's useful though.
2015-03-25 17:29:09 +01:00
Eelco Dolstra
7ea6ecf855 addToStore(): Take explicit name argument 2015-03-25 17:06:12 +01:00
Eelco Dolstra
5114a07d95 Improve setting the default chroot dirs 2015-03-24 11:57:46 +01:00
Eelco Dolstra
fd89f97be9 Add the closure of store paths to the chroot
Thus, for example, to get /bin/sh in a chroot, you only need to
specify /bin/sh=${pkgs.bash}/bin/sh in build-chroot-dirs. The
dependencies of sh will be added automatically.
2015-03-24 11:52:34 +01:00
Eelco Dolstra
5ce50cd99e Tighten permissions on chroot directories 2015-03-24 11:35:53 +01:00
Eelco Dolstra
6f0c6e20e0 Don't rely on __noChroot for corepkgs
This doesn't work anymore if the "strict" chroot mode is
enabled. Instead, add Nix's store path as a dependency. This ensures
that its closure is present in the chroot.
2015-03-24 11:15:45 +01:00
Eelco Dolstra
b005e63ccf Disable scanning for interior pointers
This may remove the "Repeated allocation of very large block"
warnings.
2015-03-19 20:10:08 +01:00
Eelco Dolstra
726f7f7fc9 Fix Boehm API violation
We were calling GC_INIT() after doing an allocation (in the baseEnv
construction), which is not allowed.
2015-03-19 20:02:37 +01:00
Eelco Dolstra
da6b704b19 Check return values from malloc/strdup 2015-03-19 14:11:35 +01:00
Eelco Dolstra
fa47279440 Print some Boehm GC stats 2015-03-18 16:24:54 +01:00
Eelco Dolstra
7a84143910 valueSize(): Take into account list/bindings/env size 2015-03-18 14:41:28 +01:00
Daniel Hahler
e659978ced Fix typos: s/the the/the/ 2015-03-06 16:43:22 +01:00
Eelco Dolstra
17c71334e1 forceValueDeep: Add to error prefix 2015-03-06 15:10:12 +01:00
Eelco Dolstra
5badc8f975 Improve error message 2015-03-06 14:24:08 +01:00
Eelco Dolstra
71b0a3a86b Add option to hide display of missing paths 2015-03-04 15:43:04 +01:00
Eelco Dolstra
75ede65e3d Don't use vfork() before clone()
I'm seeing hangs in Glibc's setxid_mark_thread() again. This is
probably because the use of an intermediate process to make clone()
safe from a multi-threaded program (see
524f89f139) is defeated by the use of
vfork(), since the intermediate process will have a copy of Glibc's
threading data structures due to the vfork(). So use a regular fork()
again.
2015-03-04 15:13:10 +01:00
Shea Levy
c2699be93b Merge branch 'allow-system-library' of git://github.com/copumpkin/nix
Make the default impure prefix include all of /System/Library
2015-03-03 15:01:09 -05:00
Dan Peebles
336c4270c6 Make the default impure prefix (not actual allowed impurities!) include all of /System/Library, since we also want PrivateFrameworks from there and (briefly) TextEncodings, and who knows what else. Yay infectious impurities? 2015-03-02 23:01:24 -05:00
Dan Peebles
66d612f1da Allow local networking in the darwin sandbox to appease tests 2015-03-02 22:55:42 -05:00
Eelco Dolstra
885bebf13b More graceful fallback for chroots on Linux < 2.13 2015-02-23 15:54:31 +01:00
Eelco Dolstra
99897f6979 Use chroots for all derivations
If ‘build-use-chroot’ is set to ‘true’, fixed-output derivations are
now also chrooted. However, unlike normal derivations, they don't get
a private network namespace, so they can still access the
network. Also, the use of the ‘__noChroot’ derivation attribute is
no longer allowed.

Setting ‘build-use-chroot’ to ‘relaxed’ gives the old behaviour.
2015-02-23 15:54:31 +01:00
Eelco Dolstra
15d2d3c34e Add restricted evaluation mode
If ‘--option restrict-eval true’ is given, the evaluator will throw an
exception if an attempt is made to access any file outside of the Nix
search path. This is primarily intended for Hydra, where we don't want
people doing ‘builtins.readFile ~/.ssh/id_dsa’ or stuff like that.
2015-02-23 15:54:31 +01:00
Eelco Dolstra
c33244d7c1 Merge branch 'tilde-paths' of https://github.com/shlevy/nix 2015-02-19 14:55:06 +01:00
Shea Levy
c4653afbcd tilde paths: The rest of the string has to start with a slash anyway 2015-02-19 08:52:13 -05:00
Shea Levy
e3e38a048e tilde paths: construct the entire path at parse time 2015-02-19 08:51:21 -05:00
Shea Levy
4b7c9f834c tilde paths: get HOME at parse time 2015-02-19 08:49:10 -05:00
Eelco Dolstra
9bedd9b09b Remove obsolete reference to ~ operator 2015-02-19 14:41:22 +01:00
Shea Levy
4646e94610 ExprConcatStrings: canonicalize concatenated paths 2015-02-19 08:39:25 -05:00
Shea Levy
e0953d53de Allow the leading component of a path to be a ~ 2015-02-19 08:05:16 -05:00
Eelco Dolstra
147deb236e nix-store --generate-binary-cache-key: Write key to disk
This ensures proper permissions for the secret key.
2015-02-18 11:19:44 +01:00
Eelco Dolstra
bd91064150 Use $<attr>Path instead of $<attr> for passAsFile 2015-02-17 16:42:54 +01:00
Eelco Dolstra
a70d275f3d Allow passing attributes via files instead of environment variables
Closes #473.
2015-02-17 14:42:15 +01:00
Harald van Dijk
5451b8db9d Use pivot_root in addition to chroot when possible
chroot only changes the process root directory, not the mount namespace root
directory, and it is well-known that any process with chroot capability can
break out of a chroot "jail". By using pivot_root as well, and unmounting the
original mount namespace root directory, breaking out becomes impossible.

Non-root processes typically have no ability to use chroot() anyway, but they
can gain that capability through the use of clone() or unshare(). For security
reasons, these syscalls are limited in functionality when used inside a normal
chroot environment. Using pivot_root() this way does allow those syscalls to be
put to their full use.
2015-02-16 12:18:19 +01:00
Eelco Dolstra
1c972cba14 Make libsodium an optional dependency 2015-02-10 11:54:06 +01:00
Eelco Dolstra
a596c525ad Add base64 encoder/decoder 2015-02-10 11:33:33 +01:00
Eelco Dolstra
2be7f79fd4 Remove tab 2015-02-05 17:21:30 +01:00
Shea Levy
d66d9e8425 Require linux 3.13 or later for chroot
Fixes #453
2015-02-04 18:15:56 +01:00
Eelco Dolstra
e0def5bc4b Use libsodium instead of OpenSSL for binary cache signing
Sodium's Ed25519 signatures are much shorter than OpenSSL's RSA
signatures. Public keys are also much shorter, so they're now
specified directly in the nix.conf option ‘binary-cache-public-keys’.

The new command ‘nix-store --generate-binary-cache-key’ generates and
prints a public and secret key.
2015-02-04 17:10:31 +01:00
Eelco Dolstra
0d1dafa0c4 Simplify parseHash32 2015-02-03 18:56:47 +01:00
Eelco Dolstra
db2ec59903 Simplify printHash32 2015-02-03 18:35:24 +01:00
Shea Levy
73bf32ce94 Merge remote-tracking branch 'shlevy/baseNameOf-no-copy'
baseNameOf: Don't copy paths to the store first
2015-01-29 03:29:09 -05:00
Daniel Peebles
f46e329a13 Make inputs writeable in the sandbox (builds still can’t actually write due to user permissions) 2015-01-18 23:25:29 -05:00
Eelco Dolstra
c2a8b5c42d Fix assertion failure in nix-env
$ nix-env -f ~/Dev/nixops/ -iA foo
  nix-env: src/libexpr/eval.hh:57: void nix::Bindings::push_back(const nix::Attr&): Assertion `size_ < capacity' failed.
  Aborted
2015-01-15 12:15:22 +01:00
Shea Levy
79ca503332 Allow using /bin and /usr/bin as impure prefixes on non-darwin by default
These directories are generally world-readable anyway, and give us the two
most common linux impurities (env and sh)
2015-01-13 15:41:46 +01:00
Eelco Dolstra
fcf57aad27 SysError -> Error 2015-01-13 11:17:56 +01:00
Eelco Dolstra
100961e370 Don't resolve symlinks while checking __impureHostDeps
Since these come from untrusted users, we shouldn't do any I/O on them
before we've checked that they're in an allowed prefix.
2015-01-13 11:16:32 +01:00
Daniel Peebles
f1151a3373 Add basic Apple sandbox support 2015-01-12 12:00:01 +01:00
Eelco Dolstra
2a3b1df423 Fix builtins.readDir on XFS
The DT_UNKNOWN fallback code was getting the type of the wrong path,
causing readDir to report "directory" as the type of every file.

Reported by deepfire on IRC.
2015-01-09 14:56:25 +01:00
Eelco Dolstra
57d64d24aa Doh^2 2015-01-08 16:59:22 +01:00
Eelco Dolstra
57b82256b0 Doh 2015-01-08 16:49:31 +01:00
Eelco Dolstra
27b7b94923 Set /nix/store permission to 1737
I.e., not readable to the nixbld group. This improves purity a bit for
non-chroot builds, because it prevents a builder from enumerating
store paths (i.e. it can only access paths it knows about).
2015-01-08 16:39:07 +01:00
Eelco Dolstra
153a943de7 Show position info for failing <...> lookups 2015-01-07 13:43:55 +01:00
Eelco Dolstra
6fec43ccb3 Remove quotes around filenames in position info 2015-01-07 12:08:10 +01:00
Eelco Dolstra
df05f49dcd Fix building on Darwin
Fixes #433.
2015-01-06 10:49:44 +01:00
Eelco Dolstra
8027083c3a Allow $NIX_PAGER to override $PAGER 2015-01-02 15:26:56 +01:00
aszlig
8b88d25cda libutil: Limit readLink() error to only overflows.
Let's not just improve the error message itself, but also the behaviour
to actually work around the ntfs-3g symlink bug. If the readlink() call
returns a smaller size than the stat() call, this really isn't a problem
even if the symlink target really has changed between the calls.

So if stat() reports the size for the absolute path, it's most likely
that the relative path is smaller and thus it should also work for file
system bugs as mentioned in 93002d69fc58c2b71e2dfad202139230c630c53a.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Tested-by: John Ericson <Ericson2314@Yahoo.com>
2015-01-02 12:53:42 +01:00
aszlig
bbd45ac80f libutil: Improve errmsg on readLink size mismatch.
A message like "error: reading symbolic link `...' : Success" really is
quite confusing, so let's not indicate "success" but rather point out
the real issue.

We could also limit the check of this to just check for non-negative
values, but this would introduce a race condition between stat() and
readlink() if the link target changes between those two calls, thus
leading to a buffer overflow vulnerability.

Reported by @Ericson2314 on IRC. Happened due to a possible ntfs-3g bug
where a relative symlink returned the absolute path (st_)size in stat()
while readlink() returned the relative size.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Tested-by: John Ericson <Ericson2314@Yahoo.com>
2015-01-02 12:53:42 +01:00
Shea Levy
3d97b8d1e7 LocalStore initialization: Don't die if build-users-group doesn't exist
See NixOS/nixpkgs@9245516
2014-12-29 14:40:13 +01:00
Eelco Dolstra
bd0f362d2f Revive running builds in a PID namespace 2014-12-23 17:25:06 +01:00
Eelco Dolstra
4e0607369e Pedantry 2014-12-14 01:51:14 +01:00
Eelco Dolstra
8bdff8c100 Merge branch 'cygwin-master' of https://github.com/ternaris/nix 2014-12-14 01:49:14 +01:00
Eelco Dolstra
fa2063ca35 Better error message 2014-12-13 16:54:40 +01:00
Eelco Dolstra
b77037b8fd Silence some warnings on GCC 4.9 2014-12-12 17:14:28 +01:00
Eelco Dolstra
46f3eb6fdd Shut up a Valgrind warning 2014-12-12 15:10:02 +01:00
Eelco Dolstra
f52b6c944e Fix some memory leaks 2014-12-12 15:01:16 +01:00
Eelco Dolstra
28f22b4653 Ensure we're writing to stderr in the builder
http://hydra.nixos.org/build/17862041
2014-12-12 14:35:44 +01:00
Eelco Dolstra
5a2d451648 Don't abort if we get a signal while waiting for the pager 2014-12-12 14:05:23 +01:00
Eelco Dolstra
54616be64f Get rid of unnecessary "interrupted by the user" message with -vvv 2014-12-12 14:01:14 +01:00
Eelco Dolstra
4acca1a5b9 Remove chatty message
This broke building with "-vv", because the builder is not allowed to
write to stderr at this point.
2014-12-12 13:43:59 +01:00
Eelco Dolstra
ad790022fd Doh 2014-12-12 13:41:00 +01:00
Eelco Dolstra
dcdb254281 Remove tabs 2014-12-12 12:39:50 +01:00
Eelco Dolstra
df319047f4 Remove dead code 2014-12-12 12:30:38 +01:00
Eelco Dolstra
8aedaf111e Remove canary stuff 2014-12-12 10:59:50 +01:00
Eelco Dolstra
c56bfbe863 Provide default pagers
Borrowed from systemd.
2014-12-10 18:16:05 +01:00
Eelco Dolstra
851b47bd7d Don't do vfork in conjunction with setuid 2014-12-10 18:01:01 +01:00
Eelco Dolstra
0e8fc118b3 Use vfork 2014-12-10 17:25:39 +01:00
Eelco Dolstra
b5ed5b6e66 Rename function 2014-12-10 17:25:38 +01:00
Eelco Dolstra
e529823635 Don't wait for PID -1
The pid field can be -1 if forking the substituter process failed.
2014-12-10 13:53:04 +01:00
Eelco Dolstra
ad332e1718 Revert "Use posix_spawn to run the pager"
This reverts commit d34d2b2bbf.
2014-12-10 13:48:50 +01:00
Shea Levy
50c3352811 builtins.readFile: realise context associated with the path 2014-12-10 12:26:53 +01:00
Marko Durkovic
629e8da3aa Explicitly include required C headers 2014-12-09 13:00:59 +01:00
Eelco Dolstra
8d169b2b75 Define ‘environ’
http://hydra.nixos.org/build/17690555
2014-12-05 21:05:24 +01:00
Eelco Dolstra
d34d2b2bbf Use posix_spawn to run the pager
In low memory environments, "nix-env -qa" failed because the fork to
run the pager hit the kernel's overcommit limits. Using posix_spawn
gets around this. (Actually, you have to use posix_spawn with the
undocumented POSIX_SPAWN_USEVFORK flag, otherwise it just uses
fork/exec...)
2014-12-05 20:34:41 +01:00
Shea Levy
608110804c Make all ExternalValueBase functions const 2014-12-02 10:27:10 -05:00
Shea Levy
320659b0cd Allow external code using libnixexpr to add types
Code that links to libnixexpr (e.g. plugins loaded with importNative, or
nix-exec) may want to provide custom value types and operations on
values of those types. For example, nix-exec is currently using sets
where a custom IO value type would be more appropriate. This commit
provides a generic hook for such types in the form of tExternal and the
ExternalBase virtual class, which contains all functions necessary for
libnixexpr's type-polymorphic functions (e.g. `showType`) to be
implemented.
2014-12-02 10:27:04 -05:00
Eelco Dolstra
976df480c9 Add a primop for regular expression pattern matching
The function ‘builtins.match’ takes a POSIX extended regular
expression and an arbitrary string. It returns ‘null’ if the string
does not match the regular expression. Otherwise, it returns a list
containing substring matches corresponding to parenthesis groups in
the regex. The regex must match the entire string (i.e. there is an
implied "^<pat>$" around the regex).  For example:

  match "foo" "foobar" => null
  match "foo" "foo" => []
  match "f(o+)(.*)" "foooobar" => ["oooo" "bar"]
  match "(.*/)?([^/]*)" "/dir/file.nix" => ["/dir/" "file.nix"]
  match "(.*/)?([^/]*)" "file.nix" => [null "file.nix"]

The following example finds all regular files with extension .nix or
.patch underneath the current directory:

  let

    findFiles = pat: dir: concatLists (mapAttrsToList (name: type:
      if type == "directory" then
        findFiles pat (dir + "/" + name)
      else if type == "regular" && match pat name != null then
        [(dir + "/" + name)]
      else []) (readDir dir));

  in findFiles ".*\\.(nix|patch)" (toString ./.)
2014-11-25 11:47:06 +01:00
Eelco Dolstra
4e340a983f forceString(): Accept pos argument 2014-11-25 10:23:36 +01:00
Eelco Dolstra
b7b6e3ddec Build derivations in a more predictable order
Derivations are now built in order of derivation name, so a package
named "aardvark" is built before "baboon".

Fixes #399.
2014-11-24 16:50:46 +01:00
Eelco Dolstra
9e3389c337 Don't create unnecessary substitution goals for derivations 2014-11-24 16:50:46 +01:00
Shea Levy
b0c5c2ac34 import derivation: cleanup
Before this there was a bug where a `find` was being called on a
not-yet-sorted set. The code was just a mess before anyway, so I cleaned
it up while fixing it.
2014-11-20 22:48:12 -05:00
Eelco Dolstra
8299aaf079 Disable vacuuming the DB after garbage collection
Especially in WAL mode on a highly loaded machine, this is not a good
idea because it results in a WAL file of approximately the same size
ad the database, which apparently cannot be deleted while anybody is
accessing it.
2014-11-19 18:14:24 +01:00
Eelco Dolstra
a3e5c99d66 nix-daemon: Call exit(), not _exit()
This was preventing destructors from running. In particular, it was
preventing the deletion of the temproot file for each worker
process. It may also have been responsible for the excessive WAL
growth on Hydra (due to the SQLite database not being closed
properly).

Apparently broken by accident in
8e9140cfde.
2014-11-19 17:09:27 +01:00
Eelco Dolstra
1256ab3b44 Clean up temp roots in a more C++ way 2014-11-19 17:07:29 +01:00
Eelco Dolstra
35aad73bb6 Fix message 2014-11-17 01:00:39 +01:00
Shea Levy
2719627bbe realiseContext: Handle all context types
Avoids an assertion
2014-11-15 21:43:51 -05:00
Shea Levy
997defa166 Add functors (callable attribute sets).
With this, attribute sets with a `__functor` attribute can be applied
just like normal functions. This can be used to attach arbitrary
metadata to a function without callers needing to treat it specially.
2014-11-15 16:12:05 -05:00
Eelco Dolstra
8cfe939b0f Don't use ADDR_LIMIT_3GB
This gives 32-bit builds on x86_64-linux more memory.
2014-11-14 14:16:20 +01:00
Eelco Dolstra
bab8d9b52a Make ~DerivationGoal more reliable 2014-11-12 11:35:53 +01:00
Eelco Dolstra
06a86aee15 nix-store --gc: Don't warn about missing manifests directory 2014-11-04 10:41:29 +01:00
Eelco Dolstra
526811c87a nix-daemon: Get peer credentials on Mac OS X
This makes allowed-users and trusted-users work on Mac OS X.
2014-10-31 10:08:59 +01:00
Eelco Dolstra
e389f4ea55 Improve error message if the daemon worker fails to start 2014-10-31 09:36:09 +01:00
Eelco Dolstra
3a9b4a1467 Fix more warnings 2014-10-31 08:49:15 +01:00
Eelco Dolstra
80893a13a7 Shut up a clang warning 2014-10-31 08:49:15 +01:00
Eelco Dolstra
11aef17a77 Remove comments claiming we use a private PID namespace
This is no longer the case since
524f89f139.
2014-10-29 15:49:34 +01:00
Shea Levy
6062b12160 Fix build on gcc < 4.7 2014-10-20 12:15:50 -04:00
Shea Levy
f040159f77 Revert "Drop support for pre-c++11 compilers."
The breakage this fixed can be worked around without removing support.

This reverts commit 84a13dc576.
2014-10-20 11:33:48 -04:00
Eelco Dolstra
ecc2c8f464 Improve printing of ASTs 2014-10-20 09:13:21 +02:00
Shea Levy
84a13dc576 Drop support for pre-c++11 compilers.
In particular, gcc 4.6's std::exception::~exception has an exception
specification in c++0x mode, which requires us to use that deprecated
feature in nix (and led to breakage after some recent changes that were
valid c++11).

nix already uses several c++11 features and gcc 4.7 has been around for
over 2 years.
2014-10-18 22:44:59 -04:00
Shea Levy
0ee1ca628a baseNameOf: Don't copy paths to the store first 2014-10-18 20:28:28 -04:00
Shea Levy
d16e3c7f09 Export realiseContext in libnixexpr
Useful for importNative plugins
2014-10-17 22:15:09 -04:00
Eelco Dolstra
d04e1ff12a nix-store -q: Check for conflicting flags
Fixes #364.
2014-10-14 12:15:39 +02:00
Eelco Dolstra
c6849e2dee Remove redundant space in usage errors 2014-10-14 11:41:04 +02:00
Eelco Dolstra
2a4dbcff74 Improved error message when encountering unsupported file types
Fixes #269.
2014-10-14 10:51:19 +02:00
Eelco Dolstra
6bb4c0b712 mkList: Scrub better
Clearing v.app.right was not enough, because the length field of a
list only takes 32 bits, so the most significant 32 bits of v.app.left
(a.k.a. v.thunk.env) would remain. This could cause Boehm GC to
interpret it as a valid pointer.

This change reduces maximum RSS for evaluating the ‘tested’ job in
nixos/release-small.nix from 1.33 GiB to 0.80 GiB, and runtime by
about 8%.
2014-10-09 13:08:53 +02:00
Eelco Dolstra
986fbd6fab Typo 2014-10-09 11:34:48 +02:00
Eelco Dolstra
b6809608cc Get rid of some unnecessary ExprConcatStrings nodes in dynamic attrs
This gives a ~18% speedup in NixOS evaluation (after converting
most calls to hasAttr/getAttr to dynamic attrs).
2014-10-05 01:04:58 +02:00
Eelco Dolstra
1418806969 Show total allocations 2014-10-05 00:39:28 +02:00
Eelco Dolstra
c3f0a489f9 Add primop ‘catAttrs’ 2014-10-04 18:15:03 +02:00
Eelco Dolstra
d4fcbe1687 Add primop ‘attrValues’ 2014-10-04 16:41:24 +02:00
Eelco Dolstra
58d8a213b0 Tweak 2014-10-04 11:27:23 +02:00
Eelco Dolstra
3f8576a6ab Remove some duplicate code 2014-10-03 22:37:51 +02:00
Shea Levy
c08c802bf3 Add readDir primop 2014-10-03 22:32:11 +02:00
Eelco Dolstra
3b5fa8d50c Don't recompile the same regex over and over 2014-10-03 21:29:40 +02:00
Eelco Dolstra
104e55bb7f nix-env: Add regular expression support in selectors
So you can now do things like:

  $ nix-env -qa '.*zip.*'
  $ nix-env -qa '.*(firefox|chromium).*'
2014-10-03 21:29:40 +02:00
Eelco Dolstra
3800f441e4 createDirs(): Handle ‘path’ being a symlink
In particular, this fixes "nix-build -o /tmp/result" on Mac OS X
(where /tmp is a symlink).
2014-10-03 16:53:28 +02:00
Eelco Dolstra
a17c23426e printValue(): Don't print <CYCLE> for repeated values 2014-10-01 15:54:40 +02:00
Eelco Dolstra
d61853430a Support control characters in JSON output 2014-09-30 00:41:18 +02:00
Eelco Dolstra
f77be20c16 printMissing(): Print derivations in approximate build order 2014-09-26 14:09:20 +02:00
Eelco Dolstra
9b146a52f1 nix-daemon: Close unnecessary fd 2014-09-25 18:45:43 +02:00
Eelco Dolstra
0ed1b924be Bindings: Remove copy constructor 2014-09-24 15:29:05 +02:00
Shell Turner
cf72a61af2 Add --force-name support for --set in nix-env, to support nix-install-package --set 2014-09-23 15:11:24 +02:00
Eelco Dolstra
ebb1dbb3e1 Add missing static 2014-09-23 15:08:27 +02:00
Eelco Dolstra
53b044c2f6 Don't evaluate inside a "throw"
Workaround for
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41174. This caused
hydra-eval-jobs to ignore SIGINT.
2014-09-22 19:18:05 +02:00
Eelco Dolstra
0cd6596b0e Add ‘deepSeq’ primop
Note that unlike ‘lib.deepSeq’ in Nixpkgs, this handles cycles.
2014-09-22 16:05:00 +02:00
Eelco Dolstra
831fc8ea21 Make forceValueDeep work on values with cycles 2014-09-22 16:05:00 +02:00
Eelco Dolstra
1e0a799bef Rename strictForceValue -> forceValueDeep 2014-09-22 16:05:00 +02:00
Eelco Dolstra
022618c794 Handle cycles when printing a value
So this no longer crashes with a stack overflow:

  nix-instantiate -E --eval 'let as = { x = as; }; in as'

Instead it prints:

  { x = { x = <CYCLE>; }; }
2014-09-22 16:05:00 +02:00
Eelco Dolstra
a54c263402 Add ‘seq’ primop 2014-09-22 16:05:00 +02:00
Eelco Dolstra
eff120d1b9 Add a function ‘valueSize’
It returns the size of value, including all other values and
environments reachable from it. It is intended for debugging memory
consumption issues.
2014-09-22 16:05:00 +02:00
Eelco Dolstra
2d6cd8aafd attrNames: Don't allocate duplicates of the symbols 2014-09-19 18:11:46 +02:00
Eelco Dolstra
ea525a261f Fix off-by-one 2014-09-19 18:08:14 +02:00
Eelco Dolstra
93e4f01ee3 Inline Bindings::find() 2014-09-19 16:56:13 +02:00
Eelco Dolstra
5b58991a71 Store Attrs inside Bindings
This prevents a double allocation per attribute set.
2014-09-19 16:49:41 +02:00
Eelco Dolstra
0342eb1705 Remove bogus comment 2014-09-19 15:07:22 +02:00
Eelco Dolstra
d4a71ec3bf Update spec file
http://hydra.nixos.org/build/14344391
2014-09-18 15:42:01 +02:00
Eelco Dolstra
8be9990cdb Install some pkgconfig files 2014-09-18 12:00:40 +02:00
Eelco Dolstra
d98bfcbf81 On Linux, disable address space randomization 2014-09-17 17:21:13 +02:00
Eelco Dolstra
6e5b02bee4 Add some instrumentation for debugging GC leaks 2014-09-17 15:19:07 +02:00
Eelco Dolstra
d37d012774 Settings: Add bool get() 2014-09-17 15:18:13 +02:00
Eelco Dolstra
9d65287b91 Fix dependency ordering 2014-09-04 20:02:08 +02:00
Eelco Dolstra
9472b4157d Fix boost::too_many_args error
Fixes #333.
2014-09-02 22:53:01 +02:00
Ludovic Courtès
8fb8c26b6d Add an 'optimiseStore' remote procedure call. 2014-09-01 23:53:26 +02:00
Eelco Dolstra
b72e93bca8 Add disallowedReferences / disallowedRequisites
For the "stdenv accidentally referring to bootstrap-tools", it seems
easier to specify the path that we don't want to depend on, e.g.

  disallowedRequisites = [ bootstrapTools ];
2014-08-28 18:57:13 +02:00
Gergely Risko
fd61069a42 Introduce allowedRequisites feature 2014-08-28 18:23:55 +02:00
Joel Taylor
b224ac1520 fix disappearing bash arguments 2014-08-21 23:17:50 +02:00
Eelco Dolstra
809ca33806 Use PR_SET_PDEATHSIG to ensure child cleanup 2014-08-21 15:31:43 +02:00
Eelco Dolstra
524f89f139 Use unshare() instead of clone()
It turns out that using clone() to start a child process is unsafe in
a multithreaded program. It can cause the initialisation of a build
child process to hang in setgroups(), as seen several times in the
build farm:

The reason is that Glibc thinks that the other threads of the parent
exist in the child, so in setxid_mark_thread() it tries to get a futex
that has been acquired by another thread just before the clone(). With
fork(), Glibc runs pthread_atfork() handlers that take care of this
(in particular, __reclaim_stacks()). But clone() doesn't do that.

Fortunately, we can use fork()+unshare() instead of clone() to set up
private namespaces.

See also https://www.mail-archive.com/lxc-devel@lists.linuxcontainers.org/msg03434.html.
2014-08-21 14:08:09 +02:00
Eelco Dolstra
fefd3650d4 Fix a segfault in ‘nix-env -qa’
This was triggered by 47e185847e, which
turned globals.state into a pointer.
2014-08-21 00:05:17 +02:00
Eelco Dolstra
65243ee833 Flush std::cout before closing stdout 2014-08-20 21:44:55 +02:00
Eelco Dolstra
43579c9799 Use pager for more commands 2014-08-20 21:44:55 +02:00
Eelco Dolstra
9481f77693 Provide reasonable default flags for $LESS
Borrowed from systemd.
2014-08-20 21:22:41 +02:00
Eelco Dolstra
11849a320e Use proper quotes everywhere 2014-08-20 18:03:48 +02:00
Eelco Dolstra
373fad75e1 Add some color 2014-08-20 16:50:17 +02:00
Eelco Dolstra
392430b2c4 nix-store -l: Automatically pipe output into $PAGER 2014-08-20 15:12:58 +02:00
Eelco Dolstra
954188af27 Filter Nix-specific ANSI escape sequences from stderr
The Nixpkgs stdenv prints some custom escape sequences to denote
nesting and stuff like that. Most terminals (e.g. xterm, konsole)
ignore them, but some do not (e.g. xfce4-terminal). So for the benefit
of the latter, filter them out.
2014-08-20 14:30:01 +02:00
Eelco Dolstra
029424d17d Make hook shutdown more reliable 2014-08-19 17:47:30 +02:00
Eelco Dolstra
02843ba4cb Fix --attr parsing 2014-08-18 15:48:23 +02:00
Eelco Dolstra
632f989b51 Doh 2014-08-18 11:35:50 +02:00
Eelco Dolstra
c160ead82f Reduce verbosity 2014-08-17 19:11:50 +02:00
Eelco Dolstra
42e9ad8fd1 Propagate remote timeouts properly 2014-08-17 19:09:03 +02:00
Eelco Dolstra
ad716378dc Fix download-via-ssh
http://hydra.nixos.org/build/13286020
2014-08-17 14:28:17 +02:00
Eelco Dolstra
fde819f2e2 nix-log2xml: Handle newlines 2014-08-13 19:06:20 +02:00
Eelco Dolstra
cb921f67c3 Remove log2html.xsl and friends
It's part of Hydra now.
2014-08-13 19:01:14 +02:00
Eelco Dolstra
e9b609bf9a nix-log2xml: Handle UTF-8 characters
C++ chars can be negative...
2014-08-13 19:00:07 +02:00
Eelco Dolstra
9367046fef Use regular file GC roots if possible
This makes hydra-eval-jobs create roots as regular files. See
1c208f2b7e.
2014-08-13 17:44:41 +02:00
Eelco Dolstra
5f05197df4 Handle compound single dash options properly
So now

  nix-instantiate --eval -E '{x}: x' --argstr x -xyzzy

correctly prints "-xyzzy", rather than giving an error.

Issue NixOS/hydra#176.
2014-08-13 04:08:33 +02:00
Eelco Dolstra
47e185847e Refactor option handling 2014-08-13 03:50:44 +02:00
Eelco Dolstra
5bed74d1b0 Fix warning about non-existant -I directories 2014-08-13 02:57:59 +02:00
Eelco Dolstra
401ab50566 Remove pointless NIX_LOG_TYPE environment variable 2014-08-13 01:19:02 +02:00
Eelco Dolstra
98873ff7de Remove unnecessary call to addTempRoot() 2014-08-05 16:41:42 +02:00
Eelco Dolstra
f02c52e3d4 Doh 2014-08-05 10:19:57 +02:00
Eelco Dolstra
988bf59421 Move some options out of globals 2014-08-04 18:13:14 +02:00
Eelco Dolstra
daccd68999 Refactor 2014-08-04 18:02:29 +02:00
Eelco Dolstra
d5a076c36f Add option ‘build-extra-chroot-dirs’
This is useful for extending (rather than overriding) the default set
of chroot paths.
2014-08-04 18:00:00 +02:00
Eelco Dolstra
4d73e2e893 Get rid of "killing <pid>" message for unused build hooks 2014-08-04 17:27:45 +02:00
Eelco Dolstra
bb45092f72 Make chroot builds easier to set up
By default, we now include /bin/sh as a bind-mount of bash.
2014-08-04 17:09:26 +02:00
Eelco Dolstra
51485dcda2 Remove ugly hack for detecting build environment setup errors 2014-08-01 19:38:21 +02:00
Eelco Dolstra
4c4b219c07 Call commonChildInit() before doing chroot init
This ensures that daemon clients see error messages from the chroot
setup.
2014-08-01 19:29:03 +02:00
Eelco Dolstra
eea0401d7a Eliminate redundant copy 2014-08-01 17:30:51 +02:00
Eelco Dolstra
e0d7d0e45c findRoots(): Prevent a call to lstat()
This means that getting the roots from /nix/var/nix/.../hydra-roots
doesn't need any I/O other than reading the directory.
2014-08-01 17:20:25 +02:00
Eelco Dolstra
daf3f2c11f Make readDirectory() return inode / file type 2014-08-01 17:14:28 +02:00
Eelco Dolstra
1c208f2b7e Allow regular files as GC roots
If a root is a regular file, then its name must denote a store
path. For instance, the existence of the file

  /nix/var/nix/gcroots/per-user/eelco/hydra-roots/wzc3cy1wwwd6d0dgxpa77ijr1yp50s6v-libxml2-2.7.7

would cause

  /nix/store/wzc3cy1wwwd6d0dgxpa77ijr1yp50s6v-libxml2-2.7.7

to be a root.

This is useful because it involves less I/O (no need for a readlink()
call) and takes up less disk space (the symlink target typically takes
up a full disk block, while directory entries are packed more
efficiently). This is particularly important for hydra.nixos.org,
which has hundreds of thousands of roots, and where reading the roots
can take 25 minutes.
2014-08-01 17:14:28 +02:00
Eelco Dolstra
50dc1f5b71 Restore default SIGPIPE handler before invoking ‘man’
Fixes NixOS/nixpkgs#3410.
2014-07-31 10:31:17 +02:00
Eelco Dolstra
3d221a7bb1 Rename nixPath to __nixPath
The name ‘nixPath’ breaks existing code.
2014-07-30 11:28:39 +02:00
Eelco Dolstra
67937907ca nix-daemon: Pass on the user's $SSH_AUTH_SOCK to the SSH substituter 2014-07-25 18:02:48 +02:00
Eelco Dolstra
71a20d4d95 Change the default for use-ssh-substituter to ‘true’
Now you only have to pass ‘--option ssh-substituter-hosts
nix-ssh@bla’ to enable SSH substitution.
2014-07-25 12:57:12 +02:00
Eelco Dolstra
1a44f1cb65 nix-copy-closure: Drop --bzip2, --xz, --show-progress
These are too difficult to implement via nix-store --serve.

‘--show-progress’ could be re-implemented fairly easily via a
sink/source wrapper class.
2014-07-24 17:11:54 +02:00
Eelco Dolstra
03103c0a36 Implement nix-copy-closure --from via nix-store --serve 2014-07-24 16:19:41 +02:00
Eelco Dolstra
62309a2c56 build-remote.pl: Be less verbose on failing builds 2014-07-24 12:43:59 +02:00
Eelco Dolstra
d7a92ed4a9 nix-store --serve: Only monitor stdin during builds
Other operations cannot hang indefinitely (except when we're reading
from stdin, in which case we'll notice a client disconnect). But
monitoring works badly during compressed imports, since there the
client can close the connection before we've sent an ack.

http://hydra.nixos.org/build/12711638
2014-07-24 11:59:35 +02:00
Eelco Dolstra
0fae20c362 Use pthread_cancel instead of a signal
Signal handlers are process-wide, so sending SIGINT to the monitor
thread will cause the normal SIGINT handler to run. This sets the
isInterrupted flag, which is not what we want. So use pthread_cancel
instead.
2014-07-24 11:47:51 +02:00
Eelco Dolstra
aa1560ca07 Fix bogus pass by reference
http://hydra.nixos.org/build/12711659
2014-07-24 09:58:07 +02:00
Eelco Dolstra
24c6d992c6 More debugging 2014-07-24 01:21:56 +02:00
Eelco Dolstra
1eb0af7ed5 Add some assertions 2014-07-24 00:16:06 +02:00
Eelco Dolstra
d3c61d83be Remove some dead code 2014-07-24 00:00:53 +02:00
Eelco Dolstra
62ad3dfc43 Remove some obsolete files 2014-07-23 23:56:58 +02:00
Eelco Dolstra
bd91453bb1 Pass -pthread only for programs that need it 2014-07-23 19:48:18 +02:00
Eelco Dolstra
ece531d105 nix-daemon: Less verbosity 2014-07-23 19:43:46 +02:00
Eelco Dolstra
d0fad1779f nix-daemon: Simplify stderr handling 2014-07-23 19:37:40 +02:00
Eelco Dolstra
78224cd871 nix-store --serve: Monitor for client disconnects
This is necessary because build-remote.pl now builds via ‘nix-store
--serve’. So if a build hangs without writing to stdout/stderr, and
the client disconnects, then we need to detect that.
2014-07-23 19:26:34 +02:00
Eelco Dolstra
49fe9592a4 nix-daemon: Use a thread instead of SIGPOLL to catch client disconnects
The thread calls poll() to wait until a HUP (or other error event)
happens on the client connection. If so, it sends SIGINT to the main
thread, which is then cleaned up normally. This is much nicer than
messing around with SIGPOLL.
2014-07-23 19:21:00 +02:00
Eelco Dolstra
fdee1ced43 startProcess: Make writing error messages from the child more robust 2014-07-23 19:11:26 +02:00
Eelco Dolstra
5989966ed3 Remove dead code 2014-07-23 14:46:28 +02:00
Eelco Dolstra
ee3c5d7916 Revert old useBuildHook behaviour 2014-07-19 02:25:47 +02:00
Eelco Dolstra
2e77bd70fa Better fix for strcasecmp on Darwin 2014-07-18 12:54:30 +02:00
Eelco Dolstra
8ddffe7aac Ugly hack to fix building on old Darwin
http://hydra.nixos.org/build/12580878
2014-07-17 23:57:17 +02:00
Eelco Dolstra
049c0eb49c nix-daemon: Add trusted-users and allowed-users options
‘trusted-users’ is a list of users and groups that have elevated
rights, such as the ability to specify binary caches. It defaults to
‘root’. A typical value would be ‘@wheel’ to specify all users in the
wheel group.

‘allowed-users’ is a list of users and groups that are allowed to
connect to the daemon. It defaults to ‘*’. A typical value would be
‘@users’ to specify the ‘users’ group.
2014-07-17 16:57:07 +02:00
Eelco Dolstra
0c730887c4 nix-daemon: Show name of connecting user 2014-07-17 15:49:33 +02:00
Eelco Dolstra
77c972c898 nix-daemon: Only print connection info if we have SO_PEERCRED 2014-07-17 15:44:51 +02:00
Eelco Dolstra
8f72e702a1 nix-daemon: Fix compat with older clients 2014-07-17 15:23:31 +02:00
Eelco Dolstra
2304a7dd21 Get rid of a compiler warning 2014-07-16 16:32:26 +02:00
Eelco Dolstra
985f1595fe Be more strict about file names in NARs 2014-07-16 16:30:50 +02:00
Eelco Dolstra
276a40b31f Handle case collisions on case-insensitive systems
When running NixOps under Mac OS X, we need to be able to import store
paths built on Linux into the local Nix store. However, HFS+ is
usually case-insensitive, so if there are directories with file names
that differ only in case, then importing will fail.

The solution is to add a suffix ("~nix~case~hack~<integer>") to
colliding files. For instance, if we have a directory containing
xt_CONNMARK.h and xt_connmark.h, then the latter will be renamed to
"xt_connmark.h~nix~case~hack~1". If a store path is dumped as a NAR,
the suffixes are removed. Thus, importing and exporting via a
case-insensitive Nix store is round-tripping. So when NixOps calls
nix-copy-closure to copy the path to a Linux machine, you get the
original file names back.

Closes #119.
2014-07-16 16:02:05 +02:00
Eelco Dolstra
fa13d3f4f3 build-remote.pl: Fix building multiple output derivations
We were importing paths without sorting them topologically, leading to
"path is not valid" errors.

See e.g. http://hydra.nixos.org/build/12451761
2014-07-14 12:19:27 +02:00
Eelco Dolstra
a5c6347ff0 build-remote.pl: Use ‘nix-store --serve’ on the remote side
This makes things more efficient (we don't need to use an SSH master
connection, and we only start a single remote process) and gets rid of
locking issues (the remote nix-store process will keep inputs and
outputs locked as long as they're needed).

It also makes it more or less secure to connect directly to the root
account on the build machine, using a forced command
(e.g. ‘command="nix-store --serve --write"’). This bypasses the Nix
daemon and is therefore more efficient.

Also, don't call nix-store to import the output paths.
2014-07-11 16:22:24 +02:00
Eelco Dolstra
e196eecbe6 Allow $NIX_BUILD_HOOK to be relative to Nix libexec directory 2014-07-11 13:55:06 +02:00
Eelco Dolstra
d0eb970fb4 Fix broken Pid constructor 2014-07-10 21:48:21 +02:00
Eelco Dolstra
edbfe2232e Replace message "importing path <...>" with "exporting path <...>"
This causes nix-copy-closure to show what it's doing before rather
than after.
2014-07-10 21:30:22 +02:00
Eelco Dolstra
7bb632b024 nix-copy-closure -s: Do substitutions via ‘nix-store --serve’
This means we no longer need an SSH master connection, since we only
execute a single command on the remote host.
2014-07-10 20:43:04 +02:00
Eelco Dolstra
43b64f5038 Remove tabs 2014-07-10 17:32:21 +02:00
Eelco Dolstra
8e9140cfde Refactoring: Move all fork handling into a higher-order function
C++11 lambdas ftw.
2014-07-10 16:58:09 +02:00
Eelco Dolstra
1114c7bd57 nix-copy-closure: Restore compression and the progress viewer 2014-07-10 14:15:12 +02:00
Eelco Dolstra
7911e4c27a Remove maybeVfork 2014-07-10 13:35:44 +02:00
Eelco Dolstra
04170d06bf nix-copy-closure: Fix race condition
There is a long-standing race condition when copying a closure to a
remote machine, particularly affecting build-remote.pl: the client
first asks the remote machine which paths it already has, then copies
over the missing paths. If the garbage collector kicks in on the
remote machine between the first and second step, the already-present
paths may be deleted. The missing paths may then refer to deleted
paths, causing nix-copy-closure to fail. The client now performs both
steps using a single remote Nix call (using ‘nix-store --serve’),
locking all paths in the closure while querying.

I changed the --serve protocol a bit (getting rid of QueryCommand), so
this breaks the SSH substituter from older versions. But it was marked
experimental anyway.

Fixes #141.
2014-07-10 11:58:59 +02:00
Eelco Dolstra
2c3a8f787b Fix security hole in ‘nix-store --serve’
Since it didn't check that the path received from the client is a
store path, the client could dump any path in the file system.
2014-07-10 11:46:01 +02:00
Eelco Dolstra
0e5d0c1543 Fix compilation error on some versions of GCC
src/libexpr/primops.cc:42:8: error: looser throw specifier for 'virtual nix::InvalidPathError::~InvalidPathError()'
src/libexpr/nixexpr.hh:12:1: error:   overriding 'virtual nix::EvalError::~EvalError() noexcept (true)'

http://hydra.nixos.org/build/12385750
2014-07-09 12:14:40 +02:00
Eelco Dolstra
beaf3e90af Add builtin function ‘fromJSON’
Fixes #294.
2014-07-04 13:34:15 +02:00
Eelco Dolstra
e477f0e938 Style fix 2014-06-27 11:36:23 +02:00
Paul Colomiets
858b8f9760 Add --json argument to nix-instantiate 2014-06-27 11:23:40 +02:00
Eelco Dolstra
8504e7d604 allow-arbitrary-code-during-evaluation -> allow-unsafe-native-code-during-evaluation 2014-06-27 11:20:16 +02:00
Shea Levy
d62f46e500 Only add the importNative primop if the allow-arbitrary-code-during-evaluation option is true (default false) 2014-06-24 10:50:03 -04:00
Shea Levy
5cd022d6c0 Add importNative primop
This can be used to import a dynamic shared object and return an
arbitrary value, including new primops. This can be used both to test
new primops without having to recompile nix every time, and to build
specialized primops that probably don't belong upstream (e.g. a function
that calls out to gpg to decrypt a nixops secret as-needed).

The imported function should initialize the Value & as needed. A single
import can define multiple values by creating an attrset or list, of
course.

An example initialization function might look like:

extern "C" void initialize(nix::EvalState & state, nix::Value & v)
{
    v.type = nix::tPrimOp;
    v.primOp = NEW nix::PrimOp(myFun, 1, state.symbols.create("myFun"));
}

Then `builtins.importNative ./example.so "initialize"` will evaluate to
the primop defined in the myFun function.
2014-06-17 12:08:01 -04:00
Eelco Dolstra
9d0709e8c4 Don't use member initialisers
They're a little bit too recent (only supported since GCC 4.7).

http://hydra.nixos.org/build/11851475
2014-06-12 17:30:37 +02:00
Eelco Dolstra
48495f67ed Fix bogus warnings about dumping large paths
Also, yay for C++11 non-static initialisers.
2014-06-12 13:15:35 +02:00
Eelco Dolstra
0960d674d4 Drop ImportError and FindError
We're not catching these anywhere.
2014-06-12 13:00:54 +02:00
Shea Levy
718f20da6d findFile: Realise the context of the path attributes 2014-06-12 12:57:14 +02:00
Shea Levy
a8fb575c98 Share code between scopedImport and import
In addition to reducing duplication, this fixes both import from
derivation and import of derivation for scopedImport
2014-06-12 12:52:39 +02:00
Eelco Dolstra
ee7fe64c0a == operator: Ignore string context
There really is no case I can think of where taking the context into
account is useful. Mostly it's just very inconvenient.
2014-06-10 14:02:56 +02:00
Eelco Dolstra
b1beed97a0 Report daemon OOM better
When copying a large path causes the daemon to run out of memory, you
now get:

  error: Nix daemon out of memory

instead of:

  error: writing to file: Broken pipe
2014-06-10 13:45:50 +02:00
Eelco Dolstra
829af22759 Print a warning when loading a large path into memory
I.e. if you have a derivation with

  src = ./huge-directory;

you'll get a warning that this is not a good idea.
2014-06-10 13:30:09 +02:00
Eelco Dolstra
3c6b8a5215 nix-env -qa --json: Generate valid JSON even if there are invalid meta attrs 2014-06-02 17:58:43 +02:00
Eelco Dolstra
becc2b0167 Sort nixPath attributes 2014-05-29 19:02:14 +02:00
Eelco Dolstra
54a34119f3 Use std::unordered_set 2014-05-26 17:53:17 +02:00
Eelco Dolstra
d8c061e044 Remove ExprBuiltin
It's slower than ExprVar since it doesn't compute a static
displacement. Since we're not using the throw primop in the
implementation of <...> anymore, it's also not really needed.
2014-05-26 17:14:28 +02:00
Eelco Dolstra
62a6eeb1f3 Make the Nix search path declarative
Nix search path lookups like <nixpkgs> are now desugared to ‘findFile
nixPath <nixpkgs>’, where ‘findFile’ is a new primop. Thus you can
override the search path simply by saying

  let
    nixPath = [ { prefix = "nixpkgs"; path = "/my-nixpkgs"; } ];
  in ... <nixpkgs> ...

In conjunction with ‘scopedImport’ (commit
c273c15cb1), the Nix search path can be
propagated across imports, e.g.

  let

    overrides = {
      nixPath = [ ... ] ++ builtins.nixPath;
      import = fn: scopedImport overrides fn;
      scopedImport = attrs: fn: scopedImport (overrides // attrs) fn;
      builtins = builtins // overrides;
    };

  in scopedImport overrides ./nixos
2014-05-26 17:02:22 +02:00
Eelco Dolstra
39d72640c2 Ensure that -I flags get included in nixPath
Also fixes #261.
2014-05-26 16:52:31 +02:00
Eelco Dolstra
a8edf185a9 Add constant ‘nixPath’
It contains the Nix expression search path as a list of { prefix, path
} sets, e.g.

  [ { path = "/nix/var/nix/profiles/per-user/root/channels/nixos"; prefix = ""; }
    { path = "/etc/nixos/configuration.nix"; prefix = "nixos-config"; }
    { path = "/home/eelco/Dev/nix/inst/share/nix/corepkgs"; prefix = "nix"; }
  ]
2014-05-26 14:55:47 +02:00
Eelco Dolstra
c273c15cb1 Add primop ‘scopedImport’
‘scopedImport’ works like ‘import’, except that it takes a set of
attributes to be added to the lexical scope of the expression,
essentially extending or overriding the builtin variables.  For
instance, the expression

  scopedImport { x = 1; } ./foo.nix

where foo.nix contains ‘x’, will evaluate to 1.

This has a few applications:

* It allows getting rid of function argument specifications in package
  expressions. For instance, a package expression like:

    { stdenv, fetchurl, libfoo }:

    stdenv.mkDerivation { ... buildInputs = [ libfoo ]; }

  can now we written as just

    stdenv.mkDerivation { ... buildInputs = [ libfoo ]; }

  and imported in all-packages.nix as:

    bar = scopedImport pkgs ./bar.nix;

  So whereas we once had dependencies listed in three places
  (buildInputs, the function, and the call site), they now only need
  to appear in one place.

* It allows overriding builtin functions. For instance, to trace all
  calls to ‘map’:

  let
    overrides = {
      map = f: xs: builtins.trace "map called!" (map f xs);

      # Ensure that our override gets propagated by calls to
      # import/scopedImport.
      import = fn: scopedImport overrides fn;

      scopedImport = attrs: fn: scopedImport (overrides // attrs) fn;

      # Also update ‘builtins’.
      builtins = builtins // overrides;
    };
  in scopedImport overrides ./bla.nix

* Similarly, it allows extending the set of builtin functions. For
  instance, during Nixpkgs/NixOS evaluation, the Nixpkgs library
  functions could be added to the default scope.

There is a downside: calls to scopedImport are not memoized, unlike
import. So importing a file multiple times leads to multiple parsings
/ evaluations. It would be possible to construct the AST only once,
but that would require careful handling of variables/environments.
2014-05-26 14:26:29 +02:00
Eelco Dolstra
f0fdbd0897 Shut up some signedness warnings 2014-05-26 12:34:15 +02:00
Eelco Dolstra
0321ef9bb2 Ugly hack to allow --argstr values starting with a dash
Fixes #265.
2014-05-23 14:43:58 +02:00
Eelco Dolstra
9f9080e2c0 nix-store -l: Fetch build logs from the Internet
If a build log is not available locally, then ‘nix-store -l’ will now
try to download it from the servers listed in the ‘log-servers’ option
in nix.conf. For instance, if you have:

  log-servers = http://hydra.nixos.org/log

then it will try to get logs from http://hydra.nixos.org/log/<base
name of the store path>. So you can do things like:

  $ nix-store -l $(which xterm)

and get a log even if xterm wasn't built locally.
2014-05-21 17:19:36 +02:00
Shea Levy
eac5841970 Provide a more useful error message when a dynamic attr lookup fails 2014-05-15 17:56:24 +02:00
Eelco Dolstra
8d5f472f2c lvlInfo -> lvlTalkative 2014-05-15 11:37:44 +02:00
Eelco Dolstra
84813af5b9 nix-store --optimise: Remove bogus statistics 2014-05-15 11:33:46 +02:00
Eelco Dolstra
690adeb03d Remove tab 2014-05-15 11:19:16 +02:00
Eelco Dolstra
a1b66f316e Merge branch 'master' of github.com:wmertens/nix 2014-05-15 11:18:29 +02:00
Wout Mertens
3b9ea8452f Shortcut store files before lstat
readdir() already returns the inode numbers, so we don't need to call
lstat to know if a file was already linked or not.
2014-05-15 09:02:22 +02:00
Wout Mertens
d73ffc552f Use the inodes given by readdir directly 2014-05-14 22:52:10 +02:00
Wout Mertens
e974f20c98 Preload linked hashes to speed up lookups
By preloading all inodes in the /nix/store/.links directory, we can
quickly determine of a hardlinked file was already linked to the hashed
links.
This is tolerant of removing the .links directory, it will simply
recalculate all hashes in the store.
2014-05-13 23:10:06 +02:00
Eelco Dolstra
95501c4dee nix-instantiate --eval: Apply auto-arguments if the result is a function
Fixes #254.
2014-05-13 12:56:48 +02:00
wmertens
a84f503d86 Shortcut already-hardlinked files
If an inode in the Nix store has more than 1 link, it probably means that it was linked into .links/ by us. If so, skip.

There's a possibility that something else hardlinked the file, so it would be nice to be able to override this.

Also, by looking at the number of hardlinks for each of the files in .links/, you can get deduplication numbers and space savings.
2014-05-10 15:53:01 +02:00
Eelco Dolstra
696f960dee Set up directories and permissions for multi-user install automatically
This automatically creates /nix/var/nix/profiles/per-user and sets the
permissions/ownership on /nix/store to 1775 and root:nixbld.
2014-05-02 14:31:15 +02:00
Eelco Dolstra
de4cdd0d47 Set build-max-jobs to the number of available cores by default
More zero configuration.
2014-05-02 12:51:43 +02:00
Eelco Dolstra
ada3e3fa15 When running as root, use build users by default
This removes the need to have a nix.conf, and prevents people from
accidentally running Nix builds as root.
2014-05-02 12:46:03 +02:00
Ricardo M. Correia
700c678c2e nix-env: Minor change to '--delete-generations Nd' semantics
The option '--delete-generations Nd' deletes all generations older than N
days. However, most likely the user does not want to delete the
generation that was active N days ago.

For example, say that you have these 3 generations:

1: <30 days ago>
2: <15 days ago>
3: <1 hour ago>

If you do --delete-generations 7d (say, as part of a cron job), most
likely you still want to keep generation 2, i.e. the generation that was
active 7 days ago (and for most of the past 7 days, in fact).

This patch fixes this issue. Note that this also affects
'nix-collect-garbage --delete-older-than Nd'.

Thanks to @roconnor for noticing the issue!
2014-04-15 15:34:58 +02:00
Eelco Dolstra
dfa2f77d2e If a .drv cannot be parsed, show its path
Otherwise you just get ‘expected string `Derive(['’ which isn't very helpful.
2014-04-08 19:24:29 +02:00
Eelco Dolstra
8e5fbf4d73 Show position info in attribute selection errors 2014-04-04 22:52:14 +02:00
Eelco Dolstra
4c5faad994 Show position info in Boolean operations 2014-04-04 22:43:52 +02:00
Eelco Dolstra
bd9b1d97b4 Show position info in string concatenation / addition errors 2014-04-04 22:19:33 +02:00
Eelco Dolstra
a5fe730940 forceString: Show position info 2014-04-04 21:14:11 +02:00
Eelco Dolstra
27b44b8cf7 forceAttrs: Show position info 2014-04-04 19:11:40 +02:00
Eelco Dolstra
96b695ccab forceList: Show position info 2014-04-04 19:05:36 +02:00
Eelco Dolstra
b62d36963c forceInt: Show position info 2014-04-04 18:59:29 +02:00
Eelco Dolstra
c28de6d96e Pass position information to primop calls
For example:

  error: `tail' called on an empty list, at
    /home/eelco/Dev/nixpkgs/pkgs/applications/misc/hello/ex-2/default.nix:13:7
2014-04-04 18:59:29 +02:00
Eelco Dolstra
8b31ffd10d Remove unnecessary quotes around file names 2014-04-04 18:59:29 +02:00
Eelco Dolstra
b72c8d2e5b Include position info in function application
This allows error messages like:

  error: the anonymous function at `/etc/nixos/configuration.nix:1:1'
    called without required argument `foo', at
    `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/modules.nix:77:59'
2014-04-04 18:59:29 +02:00