From d9a93575722d9ea918f090892b06618ddf0d1d65 Mon Sep 17 00:00:00 2001 From: Chris Webb Date: Mon, 9 Jul 2012 19:53:26 +0100 Subject: [PATCH] Allow edit of empty message with commit --amend "git commit --amend" used on a commit with an empty message fails unless -m is given, whether or not --allow-empty-message is specified. Allow it to proceed to the editor with an empty commit message. Unless --allow-empty-message is in force, it will still abort later if an empty message is saved from the editor (this check was already necessary to prevent a non-empty commit message being edited to an empty one). Add a test for --amend --edit of an empty commit message which fails without this fix, as it's a rare case that won't get frequently tested otherwise. Signed-off-by: Chris Webb Signed-off-by: Junio C Hamano --- builtin/commit.c | 2 +- t/t7501-commit.sh | 15 +++++++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/builtin/commit.c b/builtin/commit.c index eae5a29ae..4b4e7e797 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -690,7 +690,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, hook_arg1 = "message"; } else if (use_message) { buffer = strstr(use_message_buffer, "\n\n"); - if (!buffer || buffer[2] == '\0') + if (!use_editor && (!buffer || buffer[2] == '\0')) die(_("commit has empty message")); strbuf_add(&sb, buffer + 2, strlen(buffer + 2)); hook_arg1 = "commit"; diff --git a/t/t7501-commit.sh b/t/t7501-commit.sh index 8bb38337a..19593f8fb 100755 --- a/t/t7501-commit.sh +++ b/t/t7501-commit.sh @@ -124,6 +124,21 @@ test_expect_success '--amend --edit' ' test_cmp expect msg ' +test_expect_success '--amend --edit of empty message' ' + cat >replace <<-\EOF && + #!/bin/sh + echo "amended" >"$1" + EOF + chmod 755 replace && + git commit --allow-empty --allow-empty-message -m "" && + echo more bongo >file && + git add file && + EDITOR=./replace git commit --edit --amend && + git diff-tree -s --format=%s HEAD >msg && + ./replace expect && + test_cmp expect msg +' + test_expect_success '-m --edit' ' echo amended >expect && git commit --allow-empty -m buffer && -- 2.26.2