A cached path to the superproject's gitdir might be added during 'git submodule add', but in some cases - like submodules which were created before 'git submodule add' learned to cache that info - it might be useful to update the cache. Let's do it during 'git submodule update', when we already have a handle to the superproject while calling operations on the submodules. Signed-off-by: Emily Shaffer <emilyshaffer@xxxxxxxxxx> --- git-submodule.sh | 9 +++++++++ t/t7406-submodule-update.sh | 10 ++++++++++ 2 files changed, 19 insertions(+) diff --git a/git-submodule.sh b/git-submodule.sh index eb90f18229..ddda751cfa 100755 --- a/git-submodule.sh +++ b/git-submodule.sh @@ -648,6 +648,15 @@ cmd_update() fi fi + # Cache a pointer to the superproject's gitdir. This may have + # changed, so rewrite it unconditionally. Writes it to worktree + # if applicable, otherwise to local. + + sp_gitdir="$(git rev-parse --absolute-git-dir)" + relative_gitdir="$(realpath --relative-to "$sm_path" "$sp_gitdir")" + git -C "$sm_path" config --worktree \ + submodule.superprojectgitdir "$relative_gitdir" + if test -n "$recursive" then ( diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh index ff3ba5422e..96023cbb6a 100755 --- a/t/t7406-submodule-update.sh +++ b/t/t7406-submodule-update.sh @@ -1037,4 +1037,14 @@ test_expect_success 'submodule update --quiet passes quietness to merge/rebase' ) ' +test_expect_success 'submodule update adds superproject gitdir to older repos' ' + (cd super && + git -C submodule config --unset submodule.superprojectGitdir && + git submodule update && + echo "../.git" >expect && + git -C submodule config submodule.superprojectGitdir >actual && + test_cmp expect actual + ) +' + test_done -- 2.32.0.272.g935e593368-goog
