From: Nguyễn Thái Ngọc Duy Date: Mon, 24 Oct 2016 10:42:21 +0000 (+0700) Subject: commit: fix empty commit creation when there's no changes but ita entries X-Git-Tag: v2.11.0-rc0~16^2~1 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=018ec3c8203ad1aee683840a580cfba7914419b6;p=git-core%2Fgit.git commit: fix empty commit creation when there's no changes but ita entries If i-t-a entries are present and there is no change between the index and HEAD i-t-a entries, index_differs_from() still returns "dirty, new entries" (aka, the resulting commit is not empty), but cache-tree will skip i-t-a entries and produce the exact same tree of current commit. index_differs_from() is supposed to catch this so we can abort git-commit (unless --no-empty is specified). Update it to optionally ignore i-t-a entries when doing a diff between the index and HEAD so that it would return "no change" in this case and abort commit. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- diff --git a/builtin/commit.c b/builtin/commit.c index 1cba3b75c..400d2a54e 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -910,7 +910,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, if (ignore_submodule_arg && !strcmp(ignore_submodule_arg, "all")) diff_flags |= DIFF_OPT_IGNORE_SUBMODULES; - commitable = index_differs_from(parent, diff_flags); + commitable = index_differs_from(parent, diff_flags, 1); } } strbuf_release(&committer_ident); diff --git a/diff-lib.c b/diff-lib.c index 27f12282b..52447466b 100644 --- a/diff-lib.c +++ b/diff-lib.c @@ -535,7 +535,8 @@ int do_diff_cache(const unsigned char *tree_sha1, struct diff_options *opt) return 0; } -int index_differs_from(const char *def, int diff_flags) +int index_differs_from(const char *def, int diff_flags, + int ita_invisible_in_index) { struct rev_info rev; struct setup_revision_opt opt; @@ -547,6 +548,7 @@ int index_differs_from(const char *def, int diff_flags) DIFF_OPT_SET(&rev.diffopt, QUICK); DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS); rev.diffopt.flags |= diff_flags; + rev.diffopt.ita_invisible_in_index = ita_invisible_in_index; run_diff_index(&rev, 1); if (rev.pending.alloc) free(rev.pending.objects); diff --git a/diff.h b/diff.h index ce3535e9a..94422e1e9 100644 --- a/diff.h +++ b/diff.h @@ -357,7 +357,7 @@ extern int diff_result_code(struct diff_options *, int); extern void diff_no_index(struct rev_info *, int, const char **); -extern int index_differs_from(const char *def, int diff_flags); +extern int index_differs_from(const char *def, int diff_flags, int ita_invisible_in_index); /* * Fill the contents of the filespec "df", respecting any textconv defined by diff --git a/sequencer.c b/sequencer.c index eec8a60d6..b0826353e 100644 --- a/sequencer.c +++ b/sequencer.c @@ -469,7 +469,7 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts) unborn = get_sha1("HEAD", head); if (unborn) hashcpy(head, EMPTY_TREE_SHA1_BIN); - if (index_differs_from(unborn ? EMPTY_TREE_SHA1_HEX : "HEAD", 0)) + if (index_differs_from(unborn ? EMPTY_TREE_SHA1_HEX : "HEAD", 0, 0)) return error_dirty_index(opts); } discard_cache(); @@ -1064,7 +1064,7 @@ static int sequencer_continue(struct replay_opts *opts) if (ret) return ret; } - if (index_differs_from("HEAD", 0)) + if (index_differs_from("HEAD", 0, 0)) return error_dirty_index(opts); todo_list = todo_list->next; return pick_commits(todo_list, opts); diff --git a/t/t2203-add-intent.sh b/t/t2203-add-intent.sh index 0e54f63cf..8652a96d8 100755 --- a/t/t2203-add-intent.sh +++ b/t/t2203-add-intent.sh @@ -129,5 +129,16 @@ test_expect_success 'cache-tree does skip dir that becomes empty' ' ) ' +test_expect_success 'commit: ita entries ignored in empty commit check' ' + git init empty-subsequent-commit && + ( + cd empty-subsequent-commit && + test_commit one && + : >two && + git add -N two && + test_must_fail git commit -m nothing-new-here + ) +' + test_done