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scmdiff: Hardcode --git-dir

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The newest version of git refuses to work on repositories not owned by
the current user. This leads to issues with the /api/scmdiff endpoint:

May 27 11:16:05 myhydra hydra-server[923698]: fatal: unsafe repository ('/var/lib/hydra/scm/git/57ea036ec7ecd85c8dd085e02ecc6f12dd5c079a6203d16aea49f586cadfb2be' is owned by someone else)
May 27 11:16:05 myhydra hydra-server[923698]: To add an exception for this directory, call:
May 27 11:16:05 myhydra hydra-server[923698]:         git config --global --add safe.directory /var/lib/hydra/scm/git/57ea036ec7ecd85c8dd085e02ecc6f12dd5c079a6203d16aea49f586cadfb2be
May 27 11:16:05 myhydra hydra-server[923701]: warning: Not a git repository. Use --no-index to compare two paths outside a working tree
May 27 11:16:05 myhydra hydra-server[923701]: usage: git diff --no-index [<options>] <path> <path>

I used the same solution that was used in NixOS/nix#6440.

Fixes #1214
This commit is contained in:
Josef Kemetmüller 2022-05-27 11:40:49 +02:00
parent 27023b514a
commit b6ea85a601
1 changed files with 2 additions and 2 deletions
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4
src/lib/Hydra/Controller/API.pm
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@ -216,8 +216,8 @@ sub scmdiff : Path('/api/scmdiff') Args(0) {
} elsif ($type eq "git") {
my $clonePath = getSCMCacheDir . "/git/" . sha256_hex($uri);
die if ! -d $clonePath;
$diff .= `(cd $clonePath; git log $rev1..$rev2)`;
$diff .= `(cd $clonePath; git diff $rev1..$rev2)`;
$diff .= `(cd $clonePath; git --git-dir .git log $rev1..$rev2)`;
$diff .= `(cd $clonePath; git --git-dir .git diff $rev1..$rev2)`;
}
$c->stash->{'plain'} = { data => (scalar $diff) || " " };