Commit graph

13709 commits

Author SHA1 Message Date
Eelco Dolstra
062a584f12 .dir-locals.el: Set c-block-comment-prefix 2020-07-10 11:21:06 +02:00
John Ericson
323d51a7a0 Merge branch 'master' of github.com:NixOS/nix into better-ca-parse-errors 2020-07-09 19:07:06 +00:00
Matthew Bauer
a7884970c5 Fix DerivationOutputExtensional name 2020-07-09 11:37:18 -04:00
Eelco Dolstra
a2c27022e9 LocalStore::addToStore(srcPath): Handle the flat case
This helps nix-prefetch-url when using a local store.
2020-07-09 15:54:32 +02:00
Eelco Dolstra
2dd8443e30
Merge pull request #3797 from nix-macos-perf-test/macos-perf-test
add temp CI job to test syspolicy impact
2020-07-09 11:59:22 +02:00
Travis A. Everett
cfe6ea746c
add temp CI job to test syspolicy impact
Starting in Catalina, macOS runs a syspolicyd "assessment" that hits the network for each binary/script executable. It does cache these results, but Nix tends to introduce many "new" executables per build. (You can read more about this at https://github.com/NixOS/nix/issues/3789).

This PR adds a temporary, redundant macOS job with these assessments disabled. I'm hoping you can adopt it for a few weeks to help me collect more data on how this affects real projects.
2020-07-08 20:10:22 -05:00
Matthew Bauer
06a4e15478 Fix build.cc on linux 2020-07-08 19:27:51 -04:00
Matthew Bauer
8e0d0689be Only store hash of fixed derivation output
we don’t need a full storepath for a fixedoutput derivation. So just
putting the ingestion method + the hash is sufficient.
2020-07-08 19:11:39 -04:00
Eelco Dolstra
b981e5aacf Cleanup 2020-07-08 22:07:21 +02:00
Eelco Dolstra
34f25124ba Make LocalStore::addToStore(srcPath) run in constant memory
This reduces memory consumption of

  nix-instantiate \
    -E 'with import <nixpkgs> {}; runCommand "foo" { src = ./blender; } "echo foo"' \
    --option nar-buffer-size 10000

(where ./blender is a 1.1 GiB tree) from 1716 to 36 MiB, while still
ensuring that we don't do any write I/O for small source paths (up to
'nar-buffer-size' bytes). The downside is that large paths are now
always written to a temporary location in the store, even if they
produce an already valid store path. Thus, adding large paths might be
slower and run out of disk space. ¯\_(ツ)_/¯ Of course, you can always
restore the old behaviour by setting 'nar-buffer-size' to a very high
value.
2020-07-08 22:07:21 +02:00
Matthew Bauer
af95a7c16b Add name to BasicDerivation
We always have a name for BasicDerivation, since we have a derivation
store path that has a name.
2020-07-08 15:38:01 -04:00
Eelco Dolstra
7d8d78f06a
upload-release.pl: Update latest-release branch 2020-07-08 17:01:20 +02:00
Eelco Dolstra
9223603908 Merge remote-tracking branch 'origin/master' into flakes 2020-07-08 15:55:19 +02:00
Eelco Dolstra
16ec7785ca Fix 'got unknown message type 1 from Nix daemon'
Example:

  $ nix-build -E 'with import <nixpkgs> {}; runCommand "foo" { x = runCommand "bar" {} "exit 1"; } "echo foo; exit 1"'
  warning: unknown setting 'auto-allocate-uids'
  these 2 derivations will be built:
    /nix/store/v4fbdbhcdi949929a67g8farwf72zgam-bar.drv
    /nix/store/k4fsvrjl7cp2xpz7927iv7g0dqj1zyhs-foo.drv
  warning: unknown setting 'auto-allocate-uids'
  building '/nix/store/v4fbdbhcdi949929a67g8farwf72zgam-bar.drv'...
  error: --- Error ----------------------------------------------------------------------------------------------------------------------------------------------------------------- nix-daemon
  builder for '/nix/store/v4fbdbhcdi949929a67g8farwf72zgam-bar.drv' failed with exit code 1
  error: --- Error ------------------------------------------------------------------------------------------------------------------------------------------------------------------ nix-build
  got unknown message type 1 from Nix daemon
2020-07-08 15:53:14 +02:00
Daniel Fitzpatrick
39859b853c merged systemd installer with non-systemd installer. 2020-07-07 15:08:23 -05:00
Eelco Dolstra
1ab9da9154 Merge remote-tracking branch 'origin/master' into flakes 2020-07-07 14:38:57 +02:00
Eelco Dolstra
4055cfee36 Fix coverage build 2020-07-07 14:37:47 +02:00
Eelco Dolstra
7c9ece5dca exportReferencesGraph: Fix support for non-top-level store paths
Fixes #3471.
2020-07-07 14:25:43 +02:00
Daniel Fitzpatrick
fd42176a21 Add a script to install nix on non-systemd systems. 2020-07-06 21:59:18 -05:00
Carlo Nucera
0f05a36e20 Merge branch 'master' of github.com:NixOS/nix into better-ca-parse-errors 2020-07-06 16:57:09 -04:00
Eelco Dolstra
c385535c18
Merge pull request #3783 from bburdette/macos-test
address failing addTrace test
2020-07-06 22:37:44 +02:00
Ben Burdette
efd6a8b230 bump 2020-07-06 11:54:53 -06:00
Ben Burdette
75bfcf8d15 revamp trace code and test 2020-07-06 10:51:48 -06:00
Eelco Dolstra
68f524d717 nix develop: Support derivations with multiple outputs 2020-07-06 18:34:58 +02:00
Eelco Dolstra
cd8eb8a7d1 nix develop: Fall back to "bash" if nixpkgs#bashInteractive is unavailable 2020-07-06 17:08:54 +02:00
Eelco Dolstra
54712aaf8a Merge remote-tracking branch 'origin/master' into flakes 2020-07-06 16:40:10 +02:00
Eelco Dolstra
7349f257da Only mount /sys in uid-range builds
Maybe this should be a separate system feature... /sys exposes a lot
of impure info about the host system.
2020-07-06 13:50:33 +02:00
Eelco Dolstra
8c4cce553c Fix macOS build 2020-07-06 13:50:33 +02:00
Eelco Dolstra
ba50c3efa3 Add "uid-range" and "systemd-cgroup" system features
"uid-range" provides 65536 UIDs to a build and runs the build as root
in its user namespace. "systemd-cgroup" allows the build to mount the
systemd cgroup controller (needed for running systemd-nspawn and NixOS
containers).

Also, add a configuration option "auto-allocate-uids" which is needed
to enable these features, and some experimental feature gates.

So to enable support for containers you need the following in
nix.conf:

  experimental-features = auto-allocate-uids systemd-cgroup
  auto-allocate-uids = true
  system-features = uid-range systemd-cgroup
2020-07-06 13:50:33 +02:00
Eelco Dolstra
570c443f56 Simplify cgroup creation 2020-07-06 13:50:33 +02:00
Eelco Dolstra
7bdcf43b40 Destroy the cgroup prior to building 2020-07-06 13:50:33 +02:00
Eelco Dolstra
ca2f64bcda Reduce # of UIDs per build to 65536
2^18 was overkill. The idea was to enable multiple containers to run
inside a build. However, those containers can use the same UID range -
we don't really care about perfect isolation between containers inside
a build.
2020-07-06 13:50:33 +02:00
Eelco Dolstra
f5fa3de759 Run builds in their own cgroup
Also, run builds in a cgroup namespace (ensuring /proc/self/cgroup
doesn't leak information about the outside world) and mount /sys. This
enables running systemd-nspawn and thus NixOS containers in a Nix
build.
2020-07-06 13:50:33 +02:00
Eelco Dolstra
c3e0a68c7e canonicalisePathMetaData(): Support a UID range 2020-07-06 13:50:33 +02:00
Eelco Dolstra
836573a9a2 Dynamically allocate UIDs
Rather than rely on a nixbld group, we now allocate UIDs/GIDs
dynamically starting at a configurable ID (872415232 by default).

Also, we allocate 2^18 UIDs and GIDs per build, and run the build as
root in its UID namespace. (This should not be the default since it
breaks some builds. We probably should enable this conditional on a
requiredSystemFeature.) The goal is to be able to run (NixOS)
containers in a build. However, this will also require some cgroup
initialisation.

The 2^18 UIDs/GIDs is intended to provide enough ID space to run
multiple containers per build, e.g. for distributed NixOS tests.
2020-07-06 13:50:33 +02:00
John Ericson
f1c7746eb4 See if setting -std=c++17 for perl bindings helps 2020-07-05 21:50:27 +00:00
John Ericson
a38ab99d57 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-07-05 21:49:01 +00:00
Ben Burdette
a168224464 spacing 2020-07-04 18:30:49 -06:00
John Ericson
465daa9396 Merge remote-tracking branch 'upstream/master' into add-body-to-network-errors 2020-07-03 17:08:39 +00:00
John Ericson
d4250fef23 Fix Perl, again... 2020-07-03 15:17:20 +00:00
John Ericson
d291be444b Fix Perl 2020-07-03 14:49:22 +00:00
Eelco Dolstra
14227aeb32 Merge branch 'add-trace' of https://github.com/bburdette/nix 2020-07-03 16:27:39 +02:00
John Ericson
3134db1a83 Merge branch 'hash-always-has-type' of github.com:obsidiansystems/nix into better-ca-parse-errors 2020-07-03 14:12:38 +00:00
John Ericson
dbffd309fe Merge branch 'master' of github.com:NixOS/nix into hash-always-has-type 2020-07-03 14:11:38 +00:00
Ben Burdette
b29a4ea1dc Merge branch 'master' into add-trace 2020-07-03 07:57:36 -06:00
Eelco Dolstra
c3c7aedbb5 nix develop: Fix bad regex
This was accepted by libstdc++ but not libc++.

https://hydra.nixos.org/build/123569154
2020-07-03 14:58:58 +02:00
Eelco Dolstra
6f8fd3a3f2 Shut up a clang warning 2020-07-03 14:50:07 +02:00
Eelco Dolstra
dfaad374ff
Merge pull request #3778 from tweag/parallel-tests
Parallel tests fixes
2020-07-03 13:17:10 +02:00
Eelco Dolstra
017efae01f Hopefully fix macOS test failure 2020-07-03 13:16:22 +02:00
regnat
223fbe644a Shorten the path to the test root
Fix a socket length failure on the OSX builders
2020-07-03 09:20:01 +02:00