From: Junio C Hamano Date: Sat, 8 Mar 2008 20:25:58 +0000 (-0800) Subject: filter-branch: handle "disappearing tree" case correctly in subdir filter X-Git-Tag: v1.5.5-rc0~49^2 X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=5b044ac3879b0950675f0e762f1dccbbb9f4001e;p=git.git filter-branch: handle "disappearing tree" case correctly in subdir filter The subdirectory filter had a bug to notice that the commit in question did not have anything in the path-limited part of the tree. $commit:$path does not name an empty tree when $path does not appear in $commit. This should fix it. The additional test in t7003 is originally from Kevin Ballard but with fixups. Signed-off-by: Junio C Hamano --- diff --git a/git-filter-branch.sh b/git-filter-branch.sh index 49e13f0bb..010353ad8 100755 --- a/git-filter-branch.sh +++ b/git-filter-branch.sh @@ -252,7 +252,16 @@ while read commit parents; do git read-tree -i -m $commit ;; *) - git read-tree -i -m $commit:"$filter_subdir" + # The commit may not have the subdirectory at all + err=$(git read-tree -i -m $commit:"$filter_subdir" 2>&1) || { + if ! git rev-parse --verify $commit:"$filter_subdir" 2>/dev/null + then + rm -f "$GIT_INDEX_FILE" + else + echo >&2 "$err" + false + fi + } esac || die "Could not initialize the index" GIT_COMMIT=$commit diff --git a/t/t7003-filter-branch.sh b/t/t7003-filter-branch.sh index 868babc4b..6e14bf1c7 100755 --- a/t/t7003-filter-branch.sh +++ b/t/t7003-filter-branch.sh @@ -179,4 +179,28 @@ test_expect_success 'Name needing quotes' ' ' +test_expect_success 'Subdirectory filter with disappearing trees' ' + git reset --hard && + git checkout master && + + mkdir foo && + touch foo/bar && + git add foo && + test_tick && + git commit -m "Adding foo" && + + git rm -r foo && + test_tick && + git commit -m "Removing foo" && + + mkdir foo && + touch foo/bar && + git add foo && + test_tick && + git commit -m "Re-adding foo" && + + git filter-branch -f --subdirectory-filter foo && + test $(git rev-list master | wc -l) = 3 +' + test_done