From 597a97748924e8ce0b829f668acc8f7a6849b05f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ren=C3=A9=20Scharfe?= Date: Fri, 27 Aug 2021 20:35:35 +0200 Subject: [PATCH] branch: allow deleting dangling branches with --force MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit git branch only allows deleting branches that point to valid commits. Skip that check if --force is given, as the caller is indicating with it that they know what they are doing and accept the consequences. This allows deleting dangling branches, which previously had to be reset to a valid start-point using --force first. Reported-by: Ulrich Windl Helped-by: Ævar Arnfjörð Bjarmason Helped-by: Junio C Hamano Signed-off-by: René Scharfe Signed-off-by: Junio C Hamano --- Documentation/git-branch.txt | 3 ++- builtin/branch.c | 2 +- t/t3200-branch.sh | 13 +++++++++++++ 3 files changed, 16 insertions(+), 2 deletions(-) diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt index 94dc9a54f2..5449767121 100644 --- a/Documentation/git-branch.txt +++ b/Documentation/git-branch.txt @@ -118,7 +118,8 @@ OPTIONS Reset to , even if exists already. Without `-f`, 'git branch' refuses to change an existing branch. In combination with `-d` (or `--delete`), allow deleting the - branch irrespective of its merged status. In combination with + branch irrespective of its merged status, or whether it even + points to a valid commit. In combination with `-m` (or `--move`), allow renaming the branch even if the new branch name already exists, the same applies for `-c` (or `--copy`). diff --git a/builtin/branch.c b/builtin/branch.c index b23b1d1752..03c7b7253a 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -168,7 +168,7 @@ static int check_branch_commit(const char *branchname, const char *refname, int kinds, int force) { struct commit *rev = lookup_commit_reference(the_repository, oid); - if (!rev) { + if (!force && !rev) { error(_("Couldn't look up commit object for '%s'"), refname); return -1; } diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh index cc4b10236e..e575ffb4ff 100755 --- a/t/t3200-branch.sh +++ b/t/t3200-branch.sh @@ -1272,6 +1272,19 @@ test_expect_success 'attempt to delete a branch merged to its base' ' test_must_fail git branch -d my10 ' +test_expect_success 'branch --delete --force removes dangling branch' ' + git checkout main && + test_commit unstable && + hash=$(git rev-parse HEAD) && + objpath=$(echo $hash | sed -e "s|^..|.git/objects/&/|") && + git branch --no-track dangling && + mv $objpath $objpath.x && + test_when_finished "mv $objpath.x $objpath" && + git branch --delete --force dangling && + git for-each-ref refs/heads/dangling >actual && + test_must_be_empty actual +' + test_expect_success 'use --edit-description' ' write_script editor <<-\EOF && echo "New contents" >"$1"