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Switch to new Nix bindings, update Nix for that

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Implements support for Nix's new Perl bindings[1]. The current state
basically does `openStore()`, but always uses `auto` and doesn't support
stores at other URIs.

Even though the stores are cached inside the Perl implementation, I
decided to instantiate those once in the Nix helper module. That way
store openings aren't cluttered across the entire codebase. Also, there
are two stores used later on - MACHINE_LOCAL_STORE for `auto`,
BINARY_CACHE_STORE for the one from `store_uri` in `hydra.conf` - and
using consistent names should make the intent clearer then.

This doesn't contain any behavioral changes, i.e. the build product
availability issue from #1352 isn't fixed. This patch only contains the
migration to the new API.

[1] https://github.com/NixOS/nix/pull/9863
This commit is contained in:
Maximilian Bosch
2024-02-12 17:12:49 +01:00
parent 878c0f240e
commit e499509595
18 changed files with 50 additions and 58 deletions
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5
src/lib/Hydra/Helper/Nix.pm
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@ -40,8 +40,11 @@ our @EXPORT = qw(
registerRoot
restartBuilds
run
$MACHINE_LOCAL_STORE
);
our $MACHINE_LOCAL_STORE = Nix::Store->new();
sub getHydraHome {
my $dir = $ENV{"HYDRA_HOME"} or die "The HYDRA_HOME directory does not exist!\n";
@ -494,7 +497,7 @@ sub restartBuilds {
$builds = $builds->search({ finished => 1 });
foreach my $build ($builds->search({}, { columns => ["drvpath"] })) {
next if !isValidPath($build->drvpath);
next if !$MACHINE_LOCAL_STORE->isValidPath($build->drvpath);
registerRoot $build->drvpath;
}