[PATCH v2 2/3] sequencer: make commit options more extensible
- From
Johannes Schindelin <johannes.schindelin@gmx.de>
- Date
- Mar 23, 2017, 16:07 UTC
- Message-ID
- <75e2c4fe839602af19811ed3e251eb583ff6c8ad.1490285210.git.johannes.schindelin@gmx.de>
- In-Reply-To
- <cover.1490285210.git.johannes.schindelin@gmx.de>
It was pointed out during review of the sequencer-i patch series (which taught the sequencer to execute an interactive rebase) that it may be cumbersome to keep extending the signature of the run_git_commit() function whenever a new commit option is needed.
While that concern had merit, back then I was reluctant to change even more than was already asked for (which typically introduces regressions, this late in the review process, which is no fun for nobody).
Now, with fresh eyes, and with an actual need, is a good time to change the strategy from adding individual flag parameters to coalescing them into a single flags parameter.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> --- sequencer.c | 48 ++++++++++++++++++++++++++---------------------- 1 file changed, 26 insertions(+), 22 deletions(-)
diff --git a/sequencer.c b/sequencer.c index 8183a83c1fa..ce05d61a2ae 100644 --- a/sequencer.c +++ b/sequencer.c @@ -602,6 +602,11 @@ N_("you have staged changes in your working tree\n" "\n" " git rebase --continue\n"); +#define ALLOW_EMPTY (1<<0) +#define EDIT_MSG (1<<1) +#define AMEND_MSG (1<<2) +#define CLEANUP_MSG (1<<3) + /* * If we are cherry-pick, and if the merge did not result in * hand-editing, we will hit this commit and inherit the original @@ -615,8 +620,7 @@ N_("you have staged changes in your working tree\n" * author metadata. */ static int run_git_commit(const char *defmsg, struct replay_opts *opts, - int allow_empty, int edit, int amend, - int cleanup_commit_message) + unsigned int flags) { struct child_process cmd = CHILD_PROCESS_INIT; const char *value; @@ -624,7 +628,7 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts, cmd.git_cmd = 1; if (is_rebase_i(opts)) { - if (!edit) { + if (!(flags & EDIT_MSG)) { cmd.stdout_to_stderr = 1; cmd.err = -1; } @@ -640,7 +644,7 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts, argv_array_push(&cmd.args, "commit"); argv_array_push(&cmd.args, "-n"); - if (amend) + if ((flags & AMEND_MSG)) argv_array_push(&cmd.args, "--amend"); if (opts->gpg_sign) argv_array_pushf(&cmd.args, "-S%s", opts->gpg_sign); @@ -648,16 +652,16 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts, argv_array_push(&cmd.args, "-s"); if (defmsg) argv_array_pushl(&cmd.args, "-F", defmsg, NULL); - if (cleanup_commit_message) + if ((flags & CLEANUP_MSG)) argv_array_push(&cmd.args, "--cleanup=strip"); - if (edit) + if ((flags & EDIT_MSG)) argv_array_push(&cmd.args, "-e"); - else if (!cleanup_commit_message && + else if (!(flags & CLEANUP_MSG) && !opts->signoff && !opts->record_origin && git_config_get_value("commit.cleanup", &value)) argv_array_push(&cmd.args, "--cleanup=verbatim"); - if (allow_empty) + if ((flags & ALLOW_EMPTY)) argv_array_push(&cmd.args, "--allow-empty"); if (opts->allow_empty_message) @@ -926,14 +930,14 @@ static void record_in_rewritten(struct object_id *oid, static int do_pick_commit(enum todo_command command, struct commit *commit, struct replay_opts *opts, int final_fixup) { - int edit = opts->edit, cleanup_commit_message = 0; - const char *msg_file = edit ? NULL : git_path_merge_msg(); + unsigned int flags = opts->edit ? EDIT_MSG : 0, allow = 0; + const char *msg_file = opts->edit ? NULL : git_path_merge_msg(); unsigned char head[20]; struct commit *base, *next, *parent; const char *base_label, *next_label; struct commit_message msg = { NULL, NULL, NULL, NULL }; struct strbuf msgbuf = STRBUF_INIT; - int res, unborn = 0, amend = 0, allow = 0; + int res, unborn = 0; if (opts->no_commit) { /* @@ -991,7 +995,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, opts); if (res || command != TODO_REWORD) goto leave; - edit = amend = 1; + flags |= EDIT_MSG | AMEND_MSG; msg_file = NULL; goto fast_forward_edit; } @@ -1046,15 +1050,15 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, } if (command == TODO_REWORD) - edit = 1; + flags |= EDIT_MSG; else if (is_fixup(command)) { if (update_squash_messages(command, commit, opts)) return -1; - amend = 1; + flags |= AMEND_MSG; if (!final_fixup) msg_file = rebase_path_squash_msg(); else if (file_exists(rebase_path_fixup_msg())) { - cleanup_commit_message = 1; + flags |= CLEANUP_MSG; msg_file = rebase_path_fixup_msg(); } else { const char *dest = git_path("SQUASH_MSG"); @@ -1064,7 +1068,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, rebase_path_squash_msg(), dest); unlink(git_path("MERGE_MSG")); msg_file = dest; - edit = 1; + flags |= EDIT_MSG; } } @@ -1123,11 +1127,11 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, if (allow < 0) { res = allow; goto leave; - } + } else if (allow) + flags |= ALLOW_EMPTY; if (!opts->no_commit) fast_forward_edit: - res = run_git_commit(msg_file, opts, allow, edit, amend, - cleanup_commit_message); + res = run_git_commit(msg_file, opts, flags); if (!res && final_fixup) { unlink(rebase_path_fixup_msg()); @@ -2154,7 +2158,7 @@ static int continue_single_pick(void) static int commit_staged_changes(struct replay_opts *opts) { - int amend = 0; + unsigned int flags = ALLOW_EMPTY | EDIT_MSG; if (has_unstaged_changes(1)) return error(_("cannot rebase: You have unstaged changes.")); @@ -2184,10 +2188,10 @@ static int commit_staged_changes(struct replay_opts *opts) "--continue' again.")); strbuf_release(&rev); - amend = 1; + flags |= AMEND_MSG; } - if (run_git_commit(rebase_path_message(), opts, 1, 1, amend, 0)) + if (run_git_commit(rebase_path_message(), opts, flags)) return error(_("could not commit staged changes.")); unlink(rebase_path_amend()); return 0;
-- 2.12.1.windows.1