diff options
| -rw-r--r-- | Documentation/git-filter-branch.txt | 14 | ||||
| -rwxr-xr-x | git-filter-branch.sh | 2 | ||||
| -rwxr-xr-x | t/t7003-filter-branch.sh | 4 |
3 files changed, 10 insertions, 10 deletions
diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt index 0a09698c03..6e4bb02204 100644 --- a/Documentation/git-filter-branch.txt +++ b/Documentation/git-filter-branch.txt @@ -167,14 +167,12 @@ to other tags will be rewritten to point to the underlying commit. project root. Implies <<Remap_to_ancestor>>. --prune-empty:: - Some kind of filters will generate empty commits, that left the tree - untouched. This switch allow git-filter-branch to ignore such - commits. Though, this switch only applies for commits that have one - and only one parent, it will hence keep merges points. Also, this - option is not compatible with the use of `--commit-filter`. Though you - just need to use the function 'git_commit_non_empty_tree "$@"' instead - of the `git commit-tree "$@"` idiom in your commit filter to make that - happen. + Some filters will generate empty commits that leave the tree untouched. + This option instructs git-filter-branch to remove such commits if they + have exactly one or zero non-pruned parents; merge commits will + therefore remain intact. This option cannot be used together with + `--commit-filter`, though the same effect can be achieved by using the + provided `git_commit_non_empty_tree` function in a commit filter. --original <namespace>:: Use this option to set the namespace where the original commits diff --git a/git-filter-branch.sh b/git-filter-branch.sh index 86b2ff1e07..2b8cdba157 100755 --- a/git-filter-branch.sh +++ b/git-filter-branch.sh @@ -46,6 +46,8 @@ git_commit_non_empty_tree() { if test $# = 3 && test "$1" = $(git rev-parse "$3^{tree}"); then map "$3" + elif test $# = 1 && test "$1" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904; then + : else git commit-tree "$@" fi diff --git a/t/t7003-filter-branch.sh b/t/t7003-filter-branch.sh index 40526d1716..7cb60799be 100755 --- a/t/t7003-filter-branch.sh +++ b/t/t7003-filter-branch.sh @@ -362,7 +362,7 @@ test_expect_success 'prune empty works even without index/tree filters' ' test_cmp expect actual ' -test_expect_failure '--prune-empty is able to prune root commit' ' +test_expect_success '--prune-empty is able to prune root commit' ' git rev-list branch-no-a >expect && git branch testing H && git filter-branch -f --prune-empty --index-filter "git update-index --remove A.t" testing && @@ -371,7 +371,7 @@ test_expect_failure '--prune-empty is able to prune root commit' ' test_cmp expect actual ' -test_expect_failure '--prune-empty is able to prune entire branch' ' +test_expect_success '--prune-empty is able to prune entire branch' ' git branch prune-entire B && git filter-branch -f --prune-empty --index-filter "git update-index --remove A.t B.t" prune-entire && test_path_is_missing .git/refs/heads/prune-entire && |