From 66618a50f9c9f008d7aef751418f12ba9bfc6b85 Mon Sep 17 00:00:00 2001 From: Phillip Wood Date: Wed, 24 Jan 2018 12:34:22 +0000 Subject: sequencer: run 'prepare-commit-msg' hook Commit 356ee4659b ("sequencer: try to commit without forking 'git commit'", 2017-11-24) forgot to run the 'prepare-commit-msg' hook when creating the commit. Fix this by writing the commit message to a different file and running the hook. Using a different file means that if the commit is cancelled the original message file is unchanged. Also move the checks for an empty commit so the order matches 'git commit'. Reported-by: Dmitry Torokhov Helped-by: Ramsay Jones Signed-off-by: Phillip Wood Signed-off-by: Junio C Hamano --- builtin/commit.c | 2 -- sequencer.c | 69 +++++++++++++++++++++++++++++++------- sequencer.h | 1 + t/t7505-prepare-commit-msg-hook.sh | 8 ++--- 4 files changed, 61 insertions(+), 19 deletions(-) diff --git a/builtin/commit.c b/builtin/commit.c index 22d260197e..9f97ff8b98 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -66,8 +66,6 @@ N_("If you wish to skip this commit, use:\n" "Then \"git cherry-pick --continue\" will resume cherry-picking\n" "the remaining commits.\n"); -static GIT_PATH_FUNC(git_path_commit_editmsg, "COMMIT_EDITMSG") - static const char *use_message_buffer; static struct lock_file index_lock; /* real index */ static struct lock_file false_lock; /* used only for partial commits */ diff --git a/sequencer.c b/sequencer.c index 1b2599668f..86840b4bc1 100644 --- a/sequencer.c +++ b/sequencer.c @@ -29,6 +29,8 @@ const char sign_off_header[] = "Signed-off-by: "; static const char cherry_picked_prefix[] = "(cherry picked from commit "; +GIT_PATH_FUNC(git_path_commit_editmsg, "COMMIT_EDITMSG") + GIT_PATH_FUNC(git_path_seq_dir, "sequencer") static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo") @@ -888,6 +890,31 @@ void commit_post_rewrite(const struct commit *old_head, run_rewrite_hook(&old_head->object.oid, new_head); } +static int run_prepare_commit_msg_hook(struct strbuf *msg, const char *commit) +{ + struct argv_array hook_env = ARGV_ARRAY_INIT; + int ret; + const char *name; + + name = git_path_commit_editmsg(); + if (write_message(msg->buf, msg->len, name, 0)) + return -1; + + argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", get_index_file()); + argv_array_push(&hook_env, "GIT_EDITOR=:"); + if (commit) + ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name, + "commit", commit, NULL); + else + ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name, + "message", NULL); + if (ret) + ret = error(_("'prepare-commit-msg' hook failed")); + argv_array_clear(&hook_env); + + return ret; +} + static const char implicit_ident_advice_noconfig[] = N_("Your name and email address were configured automatically based\n" "on your username and hostname. Please check that they are accurate.\n" @@ -1048,8 +1075,9 @@ static int try_to_commit(struct strbuf *msg, const char *author, struct commit_list *parents = NULL; struct commit_extra_header *extra = NULL; struct strbuf err = STRBUF_INIT; - struct strbuf amend_msg = STRBUF_INIT; + struct strbuf commit_msg = STRBUF_INIT; char *amend_author = NULL; + const char *hook_commit = NULL; enum commit_msg_cleanup_mode cleanup; int res = 0; @@ -1066,8 +1094,9 @@ static int try_to_commit(struct strbuf *msg, const char *author, const char *orig_message = NULL; find_commit_subject(message, &orig_message); - msg = &amend_msg; + msg = &commit_msg; strbuf_addstr(msg, orig_message); + hook_commit = "HEAD"; } author = amend_author = get_author(message); unuse_commit_buffer(current_head, message); @@ -1081,16 +1110,6 @@ static int try_to_commit(struct strbuf *msg, const char *author, commit_list_insert(current_head, &parents); } - cleanup = (flags & CLEANUP_MSG) ? COMMIT_MSG_CLEANUP_ALL : - opts->default_msg_cleanup; - - if (cleanup != COMMIT_MSG_CLEANUP_NONE) - strbuf_stripspace(msg, cleanup == COMMIT_MSG_CLEANUP_ALL); - if (!opts->allow_empty_message && message_is_empty(msg, cleanup)) { - res = 1; /* run 'git commit' to display error message */ - goto out; - } - if (write_cache_as_tree(tree.hash, 0, NULL)) { res = error(_("git write-tree failed to write a tree")); goto out; @@ -1103,6 +1122,30 @@ static int try_to_commit(struct strbuf *msg, const char *author, goto out; } + if (find_hook("prepare-commit-msg")) { + res = run_prepare_commit_msg_hook(msg, hook_commit); + if (res) + goto out; + if (strbuf_read_file(&commit_msg, git_path_commit_editmsg(), + 2048) < 0) { + res = error_errno(_("unable to read commit message " + "from '%s'"), + git_path_commit_editmsg()); + goto out; + } + msg = &commit_msg; + } + + cleanup = (flags & CLEANUP_MSG) ? COMMIT_MSG_CLEANUP_ALL : + opts->default_msg_cleanup; + + if (cleanup != COMMIT_MSG_CLEANUP_NONE) + strbuf_stripspace(msg, cleanup == COMMIT_MSG_CLEANUP_ALL); + if (!opts->allow_empty_message && message_is_empty(msg, cleanup)) { + res = 1; /* run 'git commit' to display error message */ + goto out; + } + if (commit_tree_extended(msg->buf, msg->len, tree.hash, parents, oid->hash, author, opts->gpg_sign, extra)) { res = error(_("failed to write commit object")); @@ -1121,7 +1164,7 @@ static int try_to_commit(struct strbuf *msg, const char *author, out: free_commit_extra_headers(extra); strbuf_release(&err); - strbuf_release(&amend_msg); + strbuf_release(&commit_msg); free(amend_author); return res; diff --git a/sequencer.h b/sequencer.h index 3a5072c2ab..96c69482ad 100644 --- a/sequencer.h +++ b/sequencer.h @@ -1,6 +1,7 @@ #ifndef SEQUENCER_H #define SEQUENCER_H +const char *git_path_commit_editmsg(void); const char *git_path_seq_dir(void); #define APPEND_SIGNOFF_DEDUP (1u << 0) diff --git a/t/t7505-prepare-commit-msg-hook.sh b/t/t7505-prepare-commit-msg-hook.sh index c1f68cbcbf..1f43b3cd4c 100755 --- a/t/t7505-prepare-commit-msg-hook.sh +++ b/t/t7505-prepare-commit-msg-hook.sh @@ -252,10 +252,10 @@ test_rebase () { ' } -test_rebase failure -i -test_rebase failure -p +test_rebase success -i +test_rebase success -p -test_expect_failure 'with hook (cherry-pick)' ' +test_expect_success 'with hook (cherry-pick)' ' test_when_finished "git checkout -f master" && git checkout -B other b && git cherry-pick rebase-1 && @@ -310,7 +310,7 @@ test_expect_success 'with failing hook (merge)' ' ' -test_expect_failure C_LOCALE_OUTPUT 'with failing hook (cherry-pick)' ' +test_expect_success C_LOCALE_OUTPUT 'with failing hook (cherry-pick)' ' test_when_finished "git checkout -f master" && git checkout -B other b && test_must_fail git cherry-pick rebase-1 2>actual && -- cgit v1.2.1