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authorMaximilian Bosch <maximilian@mbosch.me>2019-11-15 13:04:42 +0100
committerMaximilian Bosch <maximilian@mbosch.me>2020-02-19 14:00:36 +0100
commitc169ea59049f861aaba429f48b828d0820b74d1d (patch)
tree35cba935e99f9076193fef5982064677289ed15e /tests
parent144bb3ef7ddca6502ea3e1878f7fc0a3f9013aba (diff)
builtins.fetchGit: Fix build when fetching a git worktree
Worktrees[1] are a feature of git which allow you to check out a ref in a different directory. While playing around with flakes I realized that git repositories in a worktree checkout break when trying to build a flake: ``` $ git worktree add ../nixpkgs-flakes nixpkgs-flakes $ cd ../nixpkgs-flakes $ nix build .#hello error: opening directory '/home/ma27/Projects/nixpkgs-flakes/.git/refs/heads': Not a directory ``` This issue has been fixed by determining with `git rev-parse --git-common-dir` where the actual `.git` directory is. Please note that this issue only exists on the `flakes` branch, fetching worktree checkouts with Nix master seems to work fine. [1] https://git-scm.com/docs/git-worktree
Diffstat (limited to 'tests')
-rw-r--r--tests/fetchGit.sh8
1 files changed, 8 insertions, 0 deletions
diff --git a/tests/fetchGit.sh b/tests/fetchGit.sh
index ac0d78f12..d44586977 100644
--- a/tests/fetchGit.sh
+++ b/tests/fetchGit.sh
@@ -25,8 +25,16 @@ rev1=$(git -C $repo rev-parse HEAD)
echo world > $repo/hello
git -C $repo commit -m 'Bla2' -a
+git -C $repo worktree add $TEST_ROOT/worktree
+echo hello >> $TEST_ROOT/worktree/hello
rev2=$(git -C $repo rev-parse HEAD)
+# Fetch a worktree
+unset _NIX_FORCE_HTTP
+path0=$(nix eval --impure --raw --expr "(builtins.fetchGit file://$TEST_ROOT/worktree).outPath")
+export _NIX_FORCE_HTTP=1
+[[ $(tail -n 1 $path0/hello) = "hello" ]]
+
# Fetch the default branch.
path=$(nix eval --impure --raw --expr "(builtins.fetchGit file://$repo).outPath")
[[ $(cat $path/hello) = world ]]