diff options
Diffstat (limited to 'sequencer.c')
| -rw-r--r-- | sequencer.c | 193 |
1 files changed, 146 insertions, 47 deletions
diff --git a/sequencer.c b/sequencer.c index f10033b9dc..6991bcb8a7 100644 --- a/sequencer.c +++ b/sequencer.c @@ -74,13 +74,6 @@ static GIT_PATH_FUNC(rebase_path_message, "rebase-merge/message") * previous commit and from the first squash/fixup commit are written * to it. The commit message for each subsequent squash/fixup commit * is appended to the file as it is processed. - * - * The first line of the file is of the form - * # This is a combination of $count commits. - * where $count is the number of commits whose messages have been - * written to the file so far (including the initial "pick" commit). - * Each time that a commit message is processed, this line is read and - * updated. It is deleted just before the combined commit is made. */ static GIT_PATH_FUNC(rebase_path_squash_msg, "rebase-merge/message-squash") /* @@ -92,6 +85,11 @@ static GIT_PATH_FUNC(rebase_path_squash_msg, "rebase-merge/message-squash") */ static GIT_PATH_FUNC(rebase_path_fixup_msg, "rebase-merge/message-fixup") /* + * This file contains the list fixup/squash commands that have been + * accumulated into message-fixup or message-squash so far. + */ +static GIT_PATH_FUNC(rebase_path_current_fixups, "rebase-merge/current-fixups") +/* * A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and * GIT_AUTHOR_DATE that will be used for the commit that is currently * being rebased. @@ -253,6 +251,7 @@ int sequencer_remove_state(struct replay_opts *opts) for (i = 0; i < opts->xopts_nr; i++) free(opts->xopts[i]); free(opts->xopts); + strbuf_release(&opts->current_fixups); strbuf_addstr(&dir, get_dir(opts)); remove_dir_recursively(&dir, 0); @@ -718,6 +717,8 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts, argv_array_pushf(&cmd.args, "-S%s", opts->gpg_sign); if (defmsg) argv_array_pushl(&cmd.args, "-F", defmsg, NULL); + else if (!(flags & EDIT_MSG)) + argv_array_pushl(&cmd.args, "-C", "HEAD", NULL); if ((flags & CLEANUP_MSG)) argv_array_push(&cmd.args, "--cleanup=strip"); if ((flags & EDIT_MSG)) @@ -1331,34 +1332,23 @@ static int update_squash_messages(enum todo_command command, struct commit *commit, struct replay_opts *opts) { struct strbuf buf = STRBUF_INIT; - int count, res; + int res; const char *message, *body; - if (file_exists(rebase_path_squash_msg())) { + if (opts->current_fixup_count > 0) { struct strbuf header = STRBUF_INIT; - char *eol, *p; + char *eol; - if (strbuf_read_file(&buf, rebase_path_squash_msg(), 2048) <= 0) + if (strbuf_read_file(&buf, rebase_path_squash_msg(), 9) <= 0) return error(_("could not read '%s'"), rebase_path_squash_msg()); - p = buf.buf + 1; - eol = strchrnul(buf.buf, '\n'); - if (buf.buf[0] != comment_line_char || - (p += strcspn(p, "0123456789\n")) == eol) - return error(_("unexpected 1st line of squash message:" - "\n\n\t%.*s"), - (int)(eol - buf.buf), buf.buf); - count = strtol(p, NULL, 10); - - if (count < 1) - return error(_("invalid 1st line of squash message:\n" - "\n\t%.*s"), - (int)(eol - buf.buf), buf.buf); + eol = buf.buf[0] != comment_line_char ? + buf.buf : strchrnul(buf.buf, '\n'); strbuf_addf(&header, "%c ", comment_line_char); - strbuf_addf(&header, - _("This is a combination of %d commits."), ++count); + strbuf_addf(&header, _("This is a combination of %d commits."), + opts->current_fixup_count + 2); strbuf_splice(&buf, 0, eol - buf.buf, header.buf, header.len); strbuf_release(&header); } else { @@ -1381,10 +1371,8 @@ static int update_squash_messages(enum todo_command command, rebase_path_fixup_msg()); } - count = 2; strbuf_addf(&buf, "%c ", comment_line_char); - strbuf_addf(&buf, _("This is a combination of %d commits."), - count); + strbuf_addf(&buf, _("This is a combination of %d commits."), 2); strbuf_addf(&buf, "\n%c ", comment_line_char); strbuf_addstr(&buf, _("This is the 1st commit message:")); strbuf_addstr(&buf, "\n\n"); @@ -1401,13 +1389,14 @@ static int update_squash_messages(enum todo_command command, if (command == TODO_SQUASH) { unlink(rebase_path_fixup_msg()); strbuf_addf(&buf, "\n%c ", comment_line_char); - strbuf_addf(&buf, _("This is the commit message #%d:"), count); + strbuf_addf(&buf, _("This is the commit message #%d:"), + ++opts->current_fixup_count); strbuf_addstr(&buf, "\n\n"); strbuf_addstr(&buf, body); } else if (command == TODO_FIXUP) { strbuf_addf(&buf, "\n%c ", comment_line_char); strbuf_addf(&buf, _("The commit message #%d will be skipped:"), - count); + ++opts->current_fixup_count); strbuf_addstr(&buf, "\n\n"); strbuf_add_commented_lines(&buf, body, strlen(body)); } else @@ -1416,6 +1405,17 @@ static int update_squash_messages(enum todo_command command, res = write_message(buf.buf, buf.len, rebase_path_squash_msg(), 0); strbuf_release(&buf); + + if (!res) { + strbuf_addf(&opts->current_fixups, "%s%s %s", + opts->current_fixups.len ? "\n" : "", + command_to_string(command), + oid_to_hex(&commit->object.oid)); + res = write_message(opts->current_fixups.buf, + opts->current_fixups.len, + rebase_path_current_fixups(), 0); + } + return res; } @@ -1678,6 +1678,9 @@ fast_forward_edit: if (!res && final_fixup) { unlink(rebase_path_fixup_msg()); unlink(rebase_path_squash_msg()); + unlink(rebase_path_current_fixups()); + strbuf_reset(&opts->current_fixups); + opts->current_fixup_count = 0; } leave: @@ -2054,6 +2057,16 @@ static int read_populate_opts(struct replay_opts *opts) read_strategy_opts(opts, &buf); strbuf_release(&buf); + if (read_oneliner(&opts->current_fixups, + rebase_path_current_fixups(), 1)) { + const char *p = opts->current_fixups.buf; + opts->current_fixup_count = 1; + while ((p = strchr(p, '\n'))) { + opts->current_fixup_count++; + p++; + } + } + return 0; } @@ -2400,10 +2413,9 @@ static int error_with_patch(struct commit *commit, static int error_failed_squash(struct commit *commit, struct replay_opts *opts, int subject_len, const char *subject) { - if (rename(rebase_path_squash_msg(), rebase_path_message())) - return error(_("could not rename '%s' to '%s'"), + if (copy_file(rebase_path_message(), rebase_path_squash_msg(), 0666)) + return error(_("could not copy '%s' to '%s'"), rebase_path_squash_msg(), rebase_path_message()); - unlink(rebase_path_fixup_msg()); unlink(git_path_merge_msg()); if (copy_file(git_path_merge_msg(), rebase_path_message(), 0666)) return error(_("could not copy '%s' to '%s'"), @@ -2769,19 +2781,16 @@ static int continue_single_pick(void) return run_command_v_opt(argv, RUN_GIT_CMD); } -static int commit_staged_changes(struct replay_opts *opts) +static int commit_staged_changes(struct replay_opts *opts, + struct todo_list *todo_list) { unsigned int flags = ALLOW_EMPTY | EDIT_MSG; + unsigned int final_fixup = 0, is_clean; if (has_unstaged_changes(1)) return error(_("cannot rebase: You have unstaged changes.")); - if (!has_uncommitted_changes(0)) { - const char *cherry_pick_head = git_path_cherry_pick_head(); - if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) - return error(_("could not remove CHERRY_PICK_HEAD")); - return 0; - } + is_clean = !has_uncommitted_changes(0); if (file_exists(rebase_path_amend())) { struct strbuf rev = STRBUF_INIT; @@ -2794,19 +2803,107 @@ static int commit_staged_changes(struct replay_opts *opts) if (get_oid_hex(rev.buf, &to_amend)) return error(_("invalid contents: '%s'"), rebase_path_amend()); - if (oidcmp(&head, &to_amend)) + if (!is_clean && oidcmp(&head, &to_amend)) return error(_("\nYou have uncommitted changes in your " "working tree. Please, commit them\n" "first and then run 'git rebase " "--continue' again.")); + /* + * When skipping a failed fixup/squash, we need to edit the + * commit message, the current fixup list and count, and if it + * was the last fixup/squash in the chain, we need to clean up + * the commit message and if there was a squash, let the user + * edit it. + */ + if (is_clean && !oidcmp(&head, &to_amend) && + opts->current_fixup_count > 0 && + file_exists(rebase_path_stopped_sha())) { + const char *p = opts->current_fixups.buf; + int len = opts->current_fixups.len; + + opts->current_fixup_count--; + if (!len) + BUG("Incorrect current_fixups:\n%s", p); + while (len && p[len - 1] != '\n') + len--; + strbuf_setlen(&opts->current_fixups, len); + if (write_message(p, len, rebase_path_current_fixups(), + 0) < 0) + return error(_("could not write file: '%s'"), + rebase_path_current_fixups()); + + /* + * If a fixup/squash in a fixup/squash chain failed, the + * commit message is already correct, no need to commit + * it again. + * + * Only if it is the final command in the fixup/squash + * chain, and only if the chain is longer than a single + * fixup/squash command (which was just skipped), do we + * actually need to re-commit with a cleaned up commit + * message. + */ + if (opts->current_fixup_count > 0 && + !is_fixup(peek_command(todo_list, 0))) { + final_fixup = 1; + /* + * If there was not a single "squash" in the + * chain, we only need to clean up the commit + * message, no need to bother the user with + * opening the commit message in the editor. + */ + if (!starts_with(p, "squash ") && + !strstr(p, "\nsquash ")) + flags = (flags & ~EDIT_MSG) | CLEANUP_MSG; + } else if (is_fixup(peek_command(todo_list, 0))) { + /* + * We need to update the squash message to skip + * the latest commit message. + */ + struct commit *commit; + const char *path = rebase_path_squash_msg(); + + if (parse_head(&commit) || + !(p = get_commit_buffer(commit, NULL)) || + write_message(p, strlen(p), path, 0)) { + unuse_commit_buffer(commit, p); + return error(_("could not write file: " + "'%s'"), path); + } + unuse_commit_buffer(commit, p); + } + } strbuf_release(&rev); flags |= AMEND_MSG; } - if (run_git_commit(rebase_path_message(), opts, flags)) + if (is_clean) { + const char *cherry_pick_head = git_path_cherry_pick_head(); + + if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) + return error(_("could not remove CHERRY_PICK_HEAD")); + if (!final_fixup) + return 0; + } + + if (run_git_commit(final_fixup ? NULL : rebase_path_message(), + opts, flags)) return error(_("could not commit staged changes.")); unlink(rebase_path_amend()); + if (final_fixup) { + unlink(rebase_path_fixup_msg()); + unlink(rebase_path_squash_msg()); + } + if (opts->current_fixup_count > 0) { + /* + * Whether final fixup or not, we just cleaned up the commit + * message... + */ + unlink(rebase_path_current_fixups()); + strbuf_reset(&opts->current_fixups); + opts->current_fixup_count = 0; + } return 0; } @@ -2818,14 +2915,16 @@ int sequencer_continue(struct replay_opts *opts) if (read_and_refresh_cache(opts)) return -1; + if (read_populate_opts(opts)) + return -1; if (is_rebase_i(opts)) { - if (commit_staged_changes(opts)) + if ((res = read_populate_todo(&todo_list, opts))) + goto release_todo_list; + if (commit_staged_changes(opts, &todo_list)) return -1; } else if (!file_exists(get_todo_path(opts))) return continue_single_pick(); - if (read_populate_opts(opts)) - return -1; - if ((res = read_populate_todo(&todo_list, opts))) + else if ((res = read_populate_todo(&todo_list, opts))) goto release_todo_list; if (!is_rebase_i(opts)) { |