Commit graph

69 commits

Author SHA1 Message Date
Eelco Dolstra
c0d4173263 Set default binary-caches-parallel-connections to 25
Some benchmarking suggested this as a good value. Running

  $ benchmark -f ... -t 25 -- sh -c 'rm -f /nix/var/nix/binary-cache*; nix-store -r /nix/store/x5z8a2yvz8h6ccmhwrwrp9igg03575jg-nixos-15.09.git.5fd87e1M.drv --dry-run --option binary-caches-parallel-connections <N>'

gave the following mean elapsed times for these values of N:

N=10:  3.3541
N=20:  2.9320
N=25:  2.6690
N=30:  2.9417
N=50:  3.2021
N=100: 3.5718
N=150: 4.2079

Memory usage is also reduced (N=150 used 186 MB, N=25 only 68 MB).

Closes #708.
2015-11-25 17:13:11 +01:00
Eelco Dolstra
0ab4d905e7 Merge branch 'p/sandbox-rename-minimal' of https://github.com/vcunat/nix 2015-11-25 14:53:42 +01:00
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
53dd97bb9d Document setting up signed binary caches 2015-06-01 17:14:16 +02:00
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
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
cffa7f80ab Typo 2015-02-23 16:02:50 +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
de8ed5c1d3 Typo 2015-02-04 18:17:06 +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
d44d923be9 Add option to disable binary cache certificate checking 2014-12-09 13:16:02 +01:00
Eelco Dolstra
e5891f2ea8 Use https://cache.nixos.org instead of http://cache.nixos.org 2014-12-09 13:16:02 +01:00
Rob Vermaas
328a80e60a 'build-cache-failures' -> 'build-cache-failure' in nix.conf documentation. 2014-11-24 13:16:45 +01:00
Eelco Dolstra
6f6b75cd09 Typo 2014-11-04 10:15:55 +01:00
Eelco Dolstra
54adf344a3 Fix references to version.txt 2014-09-16 14:57:45 +02:00
Mikey Ariel
8901acc976 Restructuring the Nix manual 2014-08-27 18:41:09 +02:00
Renamed from doc/manual/conf-file.xml (Browse further)