示例#1
0
static int sequencer_continue(struct replay_opts *opts, int skip)
{
	struct commit_list *todo_list = NULL;

	if (!file_exists(git_path(SEQ_TODO_FILE)))
		return continue_single_pick();
	read_populate_opts(&opts);
	read_populate_todo(&todo_list, opts);
	if (opts->action == REPLAY_PICK)
		load_rewritten(&rewritten, git_path(SEQ_REWR_FILE));

	/* Verify that the conflict has been resolved */
	if (file_exists(git_path("CHERRY_PICK_HEAD")) ||
	    file_exists(git_path("REVERT_HEAD"))) {
		int ret = continue_single_pick();
		if (ret)
			return ret;
	}
	if (index_differs_from("HEAD", 0))
		return error_dirty_index(opts);
	if (opts->action == REPLAY_PICK && !skip) {
		unsigned char to[20];
		if (!read_ref("HEAD", to))
			add_rewritten(&rewritten, todo_list->item->object.sha1, to);
	}
	todo_list = todo_list->next;
	return pick_commits(todo_list, opts);
}
示例#2
0
文件: sequencer.c 项目: dindinw/git
int sequencer_continue(struct replay_opts *opts)
{
	struct todo_list todo_list = TODO_LIST_INIT;
	int res;

	if (read_and_refresh_cache(opts))
		return -1;

	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)))
		goto release_todo_list;

	/* Verify that the conflict has been resolved */
	if (file_exists(git_path_cherry_pick_head()) ||
	    file_exists(git_path_revert_head())) {
		res = continue_single_pick();
		if (res)
			goto release_todo_list;
	}
	if (index_differs_from("HEAD", 0, 0)) {
		res = error_dirty_index(opts);
		goto release_todo_list;
	}
	todo_list.current++;
	res = pick_commits(&todo_list, opts);
release_todo_list:
	todo_list_release(&todo_list);
	return res;
}
示例#3
0
文件: revert.c 项目: GunioRobot/git
static int pick_revisions(struct replay_opts *opts)
{
	struct commit_list *todo_list = NULL;
	unsigned char sha1[20];

	read_and_refresh_cache(opts);

	/*
	 * Decide what to do depending on the arguments; a fresh
	 * cherry-pick should be handled differently from an existing
	 * one that is being continued
	 */
	if (opts->subcommand == REPLAY_RESET) {
		remove_sequencer_state(1);
		return 0;
	} else if (opts->subcommand == REPLAY_CONTINUE) {
		if (!file_exists(git_path(SEQ_TODO_FILE)))
			goto error;
		read_populate_opts(&opts);
		read_populate_todo(&todo_list, opts);

		/* Verify that the conflict has been resolved */
		if (!index_differs_from("HEAD", 0))
			todo_list = todo_list->next;
	} else {
		/*
		 * Start a new cherry-pick/ revert sequence; but
		 * first, make sure that an existing one isn't in
		 * progress
		 */

		walk_revs_populate_todo(&todo_list, opts);
		if (create_seq_dir() < 0) {
			error(_("A cherry-pick or revert is in progress."));
			advise(_("Use --continue to continue the operation"));
			advise(_("or --reset to forget about it"));
			return -1;
		}
		if (get_sha1("HEAD", sha1)) {
			if (opts->action == REVERT)
				return error(_("Can't revert as initial commit"));
			return error(_("Can't cherry-pick into empty head"));
		}
		save_head(sha1_to_hex(sha1));
		save_opts(opts);
	}
	return pick_commits(todo_list, opts);
error:
	return error(_("No %s in progress"), action_name(opts));
}
示例#4
0
文件: sequencer.c 项目: 64octets/git
static int sequencer_continue(struct replay_opts *opts)
{
	struct commit_list *todo_list = NULL;

	if (!file_exists(git_path_todo_file()))
		return continue_single_pick();
	read_populate_opts(&opts);
	read_populate_todo(&todo_list, opts);

	/* Verify that the conflict has been resolved */
	if (file_exists(git_path_cherry_pick_head()) ||
	    file_exists(git_path_revert_head())) {
		int ret = continue_single_pick();
		if (ret)
			return ret;
	}
	if (index_differs_from("HEAD", 0))
		return error_dirty_index(opts);
	todo_list = todo_list->next;
	return pick_commits(todo_list, opts);
}
示例#5
0
文件: commit.c 项目: AresDice/git
static int prepare_to_commit(const char *index_file, const char *prefix,
			     struct commit *current_head,
			     struct wt_status *s,
			     struct strbuf *author_ident)
{
	struct stat statbuf;
	struct strbuf committer_ident = STRBUF_INIT;
	int commitable;
	struct strbuf sb = STRBUF_INIT;
	const char *hook_arg1 = NULL;
	const char *hook_arg2 = NULL;
	int clean_message_contents = (cleanup_mode != CLEANUP_NONE);
	int old_display_comment_prefix;

	/* This checks and barfs if author is badly specified */
	determine_author_info(author_ident);

	if (!no_verify && run_hook(index_file, "pre-commit", NULL))
		return 0;

	if (squash_message) {
		/*
		 * Insert the proper subject line before other commit
		 * message options add their content.
		 */
		if (use_message && !strcmp(use_message, squash_message))
			strbuf_addstr(&sb, "squash! ");
		else {
			struct pretty_print_context ctx = {0};
			struct commit *c;
			c = lookup_commit_reference_by_name(squash_message);
			if (!c)
				die(_("could not lookup commit %s"), squash_message);
			ctx.output_encoding = get_commit_output_encoding();
			format_commit_message(c, "squash! %s\n\n", &sb,
					      &ctx);
		}
	}

	if (message.len) {
		strbuf_addbuf(&sb, &message);
		hook_arg1 = "message";
	} else if (logfile && !strcmp(logfile, "-")) {
		if (isatty(0))
			fprintf(stderr, _("(reading log message from standard input)\n"));
		if (strbuf_read(&sb, 0, 0) < 0)
			die_errno(_("could not read log from standard input"));
		hook_arg1 = "message";
	} else if (logfile) {
		if (strbuf_read_file(&sb, logfile, 0) < 0)
			die_errno(_("could not read log file '%s'"),
				  logfile);
		hook_arg1 = "message";
	} else if (use_message) {
		char *buffer;
		buffer = strstr(use_message_buffer, "\n\n");
		if (!use_editor && (!buffer || buffer[2] == '\0'))
			die(_("commit has empty message"));
		strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
		hook_arg1 = "commit";
		hook_arg2 = use_message;
	} else if (fixup_message) {
		struct pretty_print_context ctx = {0};
		struct commit *commit;
		commit = lookup_commit_reference_by_name(fixup_message);
		if (!commit)
			die(_("could not lookup commit %s"), fixup_message);
		ctx.output_encoding = get_commit_output_encoding();
		format_commit_message(commit, "fixup! %s\n\n",
				      &sb, &ctx);
		hook_arg1 = "message";
	} else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
		if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
			die_errno(_("could not read MERGE_MSG"));
		hook_arg1 = "merge";
	} else if (!stat(git_path("SQUASH_MSG"), &statbuf)) {
		if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0)
			die_errno(_("could not read SQUASH_MSG"));
		hook_arg1 = "squash";
	} else if (template_file) {
		if (strbuf_read_file(&sb, template_file, 0) < 0)
			die_errno(_("could not read '%s'"), template_file);
		hook_arg1 = "template";
		clean_message_contents = 0;
	}

	/*
	 * The remaining cases don't modify the template message, but
	 * just set the argument(s) to the prepare-commit-msg hook.
	 */
	else if (whence == FROM_MERGE)
		hook_arg1 = "merge";
	else if (whence == FROM_CHERRY_PICK) {
		hook_arg1 = "commit";
		hook_arg2 = "CHERRY_PICK_HEAD";
	}

	if (squash_message) {
		/*
		 * If squash_commit was used for the commit subject,
		 * then we're possibly hijacking other commit log options.
		 * Reset the hook args to tell the real story.
		 */
		hook_arg1 = "message";
		hook_arg2 = "";
	}

	s->fp = fopen(git_path(commit_editmsg), "w");
	if (s->fp == NULL)
		die_errno(_("could not open '%s'"), git_path(commit_editmsg));

	/* Ignore status.displayCommentPrefix: we do need comments in COMMIT_EDITMSG. */
	old_display_comment_prefix = s->display_comment_prefix;
	s->display_comment_prefix = 1;

	/*
	 * Most hints are counter-productive when the commit has
	 * already started.
	 */
	s->hints = 0;

	if (clean_message_contents)
		stripspace(&sb, 0);

	if (signoff) {
		/*
		 * See if we have a Conflicts: block at the end. If yes, count
		 * its size, so we can ignore it.
		 */
		int ignore_footer = 0;
		int i, eol, previous = 0;
		const char *nl;

		for (i = 0; i < sb.len; i++) {
			nl = memchr(sb.buf + i, '\n', sb.len - i);
			if (nl)
				eol = nl - sb.buf;
			else
				eol = sb.len;
			if (starts_with(sb.buf + previous, "\nConflicts:\n")) {
				ignore_footer = sb.len - previous;
				break;
			}
			while (i < eol)
				i++;
			previous = eol;
		}

		append_signoff(&sb, ignore_footer, 0);
	}

	if (fwrite(sb.buf, 1, sb.len, s->fp) < sb.len)
		die_errno(_("could not write commit template"));

	strbuf_release(&sb);

	/* This checks if committer ident is explicitly given */
	strbuf_addstr(&committer_ident, git_committer_info(IDENT_STRICT));
	if (use_editor && include_status) {
		int ident_shown = 0;
		int saved_color_setting;
		char *ai_tmp, *ci_tmp;
		if (whence != FROM_COMMIT)
			status_printf_ln(s, GIT_COLOR_NORMAL,
			    whence == FROM_MERGE
				? _("\n"
					"It looks like you may be committing a merge.\n"
					"If this is not correct, please remove the file\n"
					"	%s\n"
					"and try again.\n")
				: _("\n"
					"It looks like you may be committing a cherry-pick.\n"
					"If this is not correct, please remove the file\n"
					"	%s\n"
					"and try again.\n"),
				git_path(whence == FROM_MERGE
					 ? "MERGE_HEAD"
					 : "CHERRY_PICK_HEAD"));

		fprintf(s->fp, "\n");
		if (cleanup_mode == CLEANUP_ALL)
			status_printf(s, GIT_COLOR_NORMAL,
				_("Please enter the commit message for your changes."
				  " Lines starting\nwith '%c' will be ignored, and an empty"
				  " message aborts the commit.\n"), comment_line_char);
		else /* CLEANUP_SPACE, that is. */
			status_printf(s, GIT_COLOR_NORMAL,
				_("Please enter the commit message for your changes."
				  " Lines starting\n"
				  "with '%c' will be kept; you may remove them"
				  " yourself if you want to.\n"
				  "An empty message aborts the commit.\n"), comment_line_char);
		if (only_include_assumed)
			status_printf_ln(s, GIT_COLOR_NORMAL,
					"%s", only_include_assumed);

		ai_tmp = cut_ident_timestamp_part(author_ident->buf);
		ci_tmp = cut_ident_timestamp_part(committer_ident.buf);
		if (strcmp(author_ident->buf, committer_ident.buf))
			status_printf_ln(s, GIT_COLOR_NORMAL,
				_("%s"
				"Author:    %s"),
				ident_shown++ ? "" : "\n",
				author_ident->buf);

		if (!committer_ident_sufficiently_given())
			status_printf_ln(s, GIT_COLOR_NORMAL,
				_("%s"
				"Committer: %s"),
				ident_shown++ ? "" : "\n",
				committer_ident.buf);

		if (ident_shown)
			status_printf_ln(s, GIT_COLOR_NORMAL, "");

		saved_color_setting = s->use_color;
		s->use_color = 0;
		commitable = run_status(s->fp, index_file, prefix, 1, s);
		s->use_color = saved_color_setting;

		*ai_tmp = ' ';
		*ci_tmp = ' ';
	} else {
		unsigned char sha1[20];
		const char *parent = "HEAD";

		if (!active_nr && read_cache() < 0)
			die(_("Cannot read index"));

		if (amend)
			parent = "HEAD^1";

		if (get_sha1(parent, sha1))
			commitable = !!active_nr;
		else
			commitable = index_differs_from(parent, 0);
	}
	strbuf_release(&committer_ident);

	fclose(s->fp);

	/*
	 * Reject an attempt to record a non-merge empty commit without
	 * explicit --allow-empty. In the cherry-pick case, it may be
	 * empty due to conflict resolution, which the user should okay.
	 */
	if (!commitable && whence != FROM_MERGE && !allow_empty &&
	    !(amend && is_a_merge(current_head))) {
		s->display_comment_prefix = old_display_comment_prefix;
		run_status(stdout, index_file, prefix, 0, s);
		if (amend)
			fputs(_(empty_amend_advice), stderr);
		else if (whence == FROM_CHERRY_PICK) {
			fputs(_(empty_cherry_pick_advice), stderr);
			if (!sequencer_in_use)
				fputs(_(empty_cherry_pick_advice_single), stderr);
			else
				fputs(_(empty_cherry_pick_advice_multi), stderr);
		}
		return 0;
	}

	/*
	 * Re-read the index as pre-commit hook could have updated it,
	 * and write it out as a tree.  We must do this before we invoke
	 * the editor and after we invoke run_status above.
	 */
	discard_cache();
	read_cache_from(index_file);
	if (update_main_cache_tree(0)) {
		error(_("Error building trees"));
		return 0;
	}

	if (run_hook(index_file, "prepare-commit-msg",
		     git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
		return 0;

	if (use_editor) {
		char index[PATH_MAX];
		const char *env[2] = { NULL };
		env[0] =  index;
		snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
		if (launch_editor(git_path(commit_editmsg), NULL, env)) {
			fprintf(stderr,
			_("Please supply the message using either -m or -F option.\n"));
			exit(1);
		}
	}

	if (!no_verify &&
	    run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
		return 0;
	}

	return 1;
}
示例#6
0
文件: sequencer.c 项目: 64octets/git
static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
{
	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, allow;

	if (opts->no_commit) {
		/*
		 * We do not intend to commit immediately.  We just want to
		 * merge the differences in, so let's compute the tree
		 * that represents the "current" state for merge-recursive
		 * to work on.
		 */
		if (write_cache_as_tree(head, 0, NULL))
			die (_("Your index file is unmerged."));
	} else {
		unborn = get_sha1("HEAD", head);
		if (unborn)
			hashcpy(head, EMPTY_TREE_SHA1_BIN);
		if (index_differs_from(unborn ? EMPTY_TREE_SHA1_HEX : "HEAD", 0))
			return error_dirty_index(opts);
	}
	discard_cache();

	if (!commit->parents) {
		parent = NULL;
	}
	else if (commit->parents->next) {
		/* Reverting or cherry-picking a merge commit */
		int cnt;
		struct commit_list *p;

		if (!opts->mainline)
			return error(_("Commit %s is a merge but no -m option was given."),
				oid_to_hex(&commit->object.oid));

		for (cnt = 1, p = commit->parents;
		     cnt != opts->mainline && p;
		     cnt++)
			p = p->next;
		if (cnt != opts->mainline || !p)
			return error(_("Commit %s does not have parent %d"),
				oid_to_hex(&commit->object.oid), opts->mainline);
		parent = p->item;
	} else if (0 < opts->mainline)
		return error(_("Mainline was specified but commit %s is not a merge."),
			oid_to_hex(&commit->object.oid));
	else
		parent = commit->parents->item;

	if (opts->allow_ff &&
	    ((parent && !hashcmp(parent->object.oid.hash, head)) ||
	     (!parent && unborn)))
		return fast_forward_to(commit->object.oid.hash, head, unborn, opts);

	if (parent && parse_commit(parent) < 0)
		/* TRANSLATORS: The first %s will be "revert" or
		   "cherry-pick", the second %s a SHA1 */
		return error(_("%s: cannot parse parent commit %s"),
			action_name(opts), oid_to_hex(&parent->object.oid));

	if (get_message(commit, &msg) != 0)
		return error(_("Cannot get commit message for %s"),
			oid_to_hex(&commit->object.oid));

	/*
	 * "commit" is an existing commit.  We would want to apply
	 * the difference it introduces since its first parent "prev"
	 * on top of the current HEAD if we are cherry-pick.  Or the
	 * reverse of it if we are revert.
	 */

	if (opts->action == REPLAY_REVERT) {
		base = commit;
		base_label = msg.label;
		next = parent;
		next_label = msg.parent_label;
		strbuf_addstr(&msgbuf, "Revert \"");
		strbuf_addstr(&msgbuf, msg.subject);
		strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit ");
		strbuf_addstr(&msgbuf, oid_to_hex(&commit->object.oid));

		if (commit->parents && commit->parents->next) {
			strbuf_addstr(&msgbuf, ", reversing\nchanges made to ");
			strbuf_addstr(&msgbuf, oid_to_hex(&parent->object.oid));
		}
		strbuf_addstr(&msgbuf, ".\n");
	} else {
		const char *p;

		base = parent;
		base_label = msg.parent_label;
		next = commit;
		next_label = msg.label;

		/*
		 * Append the commit log message to msgbuf; it starts
		 * after the tree, parent, author, committer
		 * information followed by "\n\n".
		 */
		p = strstr(msg.message, "\n\n");
		if (p)
			strbuf_addstr(&msgbuf, skip_blank_lines(p + 2));

		if (opts->record_origin) {
			if (!has_conforming_footer(&msgbuf, NULL, 0))
				strbuf_addch(&msgbuf, '\n');
			strbuf_addstr(&msgbuf, cherry_picked_prefix);
			strbuf_addstr(&msgbuf, oid_to_hex(&commit->object.oid));
			strbuf_addstr(&msgbuf, ")\n");
		}
	}

	if (!opts->strategy || !strcmp(opts->strategy, "recursive") || opts->action == REPLAY_REVERT) {
		res = do_recursive_merge(base, next, base_label, next_label,
					 head, &msgbuf, opts);
		write_message(&msgbuf, git_path_merge_msg());
	} else {
		struct commit_list *common = NULL;
		struct commit_list *remotes = NULL;

		write_message(&msgbuf, git_path_merge_msg());

		commit_list_insert(base, &common);
		commit_list_insert(next, &remotes);
		res = try_merge_command(opts->strategy, opts->xopts_nr, opts->xopts,
					common, sha1_to_hex(head), remotes);
		free_commit_list(common);
		free_commit_list(remotes);
	}

	/*
	 * If the merge was clean or if it failed due to conflict, we write
	 * CHERRY_PICK_HEAD for the subsequent invocation of commit to use.
	 * However, if the merge did not even start, then we don't want to
	 * write it at all.
	 */
	if (opts->action == REPLAY_PICK && !opts->no_commit && (res == 0 || res == 1))
		update_ref(NULL, "CHERRY_PICK_HEAD", commit->object.oid.hash, NULL,
			   REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);
	if (opts->action == REPLAY_REVERT && ((opts->no_commit && res == 0) || res == 1))
		update_ref(NULL, "REVERT_HEAD", commit->object.oid.hash, NULL,
			   REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);

	if (res) {
		error(opts->action == REPLAY_REVERT
		      ? _("could not revert %s... %s")
		      : _("could not apply %s... %s"),
		      find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV),
		      msg.subject);
		print_advice(res == 1, opts);
		rerere(opts->allow_rerere_auto);
		goto leave;
	}

	allow = allow_empty(opts, commit);
	if (allow < 0) {
		res = allow;
		goto leave;
	}
	if (!opts->no_commit)
		res = run_git_commit(git_path_merge_msg(), opts, allow);

leave:
	free_message(commit, &msg);

	return res;
}
示例#7
0
static int do_pick_commit(void)
{
	unsigned char head[20];
	struct commit *base, *next, *parent;
	const char *base_label, *next_label;
	struct commit_message msg = { NULL, NULL, NULL, NULL, NULL };
	char *defmsg = NULL;
	struct strbuf msgbuf = STRBUF_INIT;

	if (no_commit) {
		/*
		 * We do not intend to commit immediately.  We just want to
		 * merge the differences in, so let's compute the tree
		 * that represents the "current" state for merge-recursive
		 * to work on.
		 */
		if (write_cache_as_tree(head, 0, NULL))
			die ("Your index file is unmerged.");
	} else {
		if (get_sha1("HEAD", head))
			die ("You do not have a valid HEAD");
		if (index_differs_from("HEAD", 0))
			die_dirty_index(me);
	}
	discard_cache();

	if (!commit->parents) {
		if (action == REVERT)
			die ("Cannot revert a root commit");
		parent = NULL;
	}
	else if (commit->parents->next) {
		/* Reverting or cherry-picking a merge commit */
		int cnt;
		struct commit_list *p;

		if (!mainline)
			die("Commit %s is a merge but no -m option was given.",
			    sha1_to_hex(commit->object.sha1));

		for (cnt = 1, p = commit->parents;
		     cnt != mainline && p;
		     cnt++)
			p = p->next;
		if (cnt != mainline || !p)
			die("Commit %s does not have parent %d",
			    sha1_to_hex(commit->object.sha1), mainline);
		parent = p->item;
	} else if (0 < mainline)
		die("Mainline was specified but commit %s is not a merge.",
		    sha1_to_hex(commit->object.sha1));
	else
		parent = commit->parents->item;

	if (allow_ff && !hashcmp(parent->object.sha1, head))
		return fast_forward_to(commit->object.sha1, head);

	if (parent && parse_commit(parent) < 0)
		die("%s: cannot parse parent commit %s",
		    me, sha1_to_hex(parent->object.sha1));

	if (get_message(commit->buffer, &msg) != 0)
		die("Cannot get commit message for %s",
				sha1_to_hex(commit->object.sha1));

	/*
	 * "commit" is an existing commit.  We would want to apply
	 * the difference it introduces since its first parent "prev"
	 * on top of the current HEAD if we are cherry-pick.  Or the
	 * reverse of it if we are revert.
	 */

	defmsg = git_pathdup("MERGE_MSG");

	if (action == REVERT) {
		base = commit;
		base_label = msg.label;
		next = parent;
		next_label = msg.parent_label;
		strbuf_addstr(&msgbuf, "Revert \"");
		strbuf_addstr(&msgbuf, msg.subject);
		strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit ");
		strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1));

		if (commit->parents->next) {
			strbuf_addstr(&msgbuf, ", reversing\nchanges made to ");
			strbuf_addstr(&msgbuf, sha1_to_hex(parent->object.sha1));
		}
		strbuf_addstr(&msgbuf, ".\n");
	} else {
		base = parent;
		base_label = msg.parent_label;
		next = commit;
		next_label = msg.label;
		set_author_ident_env(msg.message);
		add_message_to_msg(&msgbuf, msg.message);
		if (no_replay) {
			strbuf_addstr(&msgbuf, "(cherry picked from commit ");
			strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1));
			strbuf_addstr(&msgbuf, ")\n");
		}
	}

	if (!strategy || !strcmp(strategy, "recursive") || action == REVERT)
		do_recursive_merge(base, next, base_label, next_label,
				   head, &msgbuf, defmsg);
	else {
		int res;
		struct commit_list *common = NULL;
		struct commit_list *remotes = NULL;
		write_message(&msgbuf, defmsg);
		commit_list_insert(base, &common);
		commit_list_insert(next, &remotes);
		res = try_merge_command(strategy, common,
					sha1_to_hex(head), remotes);
		free_commit_list(common);
		free_commit_list(remotes);
		if (res) {
			fprintf(stderr, "Automatic %s with strategy %s failed.%s\n",
				me, strategy, help_msg());
			rerere(allow_rerere_auto);
			exit(1);
		}
	}

	free_message(&msg);

	/*
	 *
	 * If we are cherry-pick, and if the merge did not result in
	 * hand-editing, we will hit this commit and inherit the original
	 * author date and name.
	 * If we are revert, or if our cherry-pick results in a hand merge,
	 * we had better say that the current user is responsible for that.
	 */

	if (!no_commit) {
		/* 6 is max possible length of our args array including NULL */
		const char *args[6];
		int res;
		int i = 0;

		args[i++] = "commit";
		args[i++] = "-n";
		if (signoff)
			args[i++] = "-s";
		if (!edit) {
			args[i++] = "-F";
			args[i++] = defmsg;
		}
		args[i] = NULL;
		res = run_command_v_opt(args, RUN_GIT_CMD);
		free(defmsg);

		return res;
	}

	free(defmsg);

	return 0;
}
示例#8
0
文件: commit.c 项目: pcmelone/git
static int prepare_to_commit(const char *index_file, const char *prefix,
			     struct wt_status *s)
{
	struct stat statbuf;
	int commitable, saved_color_setting;
	struct strbuf sb = STRBUF_INIT;
	char *buffer;
	FILE *fp;
	const char *hook_arg1 = NULL;
	const char *hook_arg2 = NULL;
	int ident_shown = 0;

	if (!no_verify && run_hook(index_file, "pre-commit", NULL))
		return 0;

	if (squash_message) {
		/*
		 * Insert the proper subject line before other commit
		 * message options add their content.
		 */
		if (use_message && !strcmp(use_message, squash_message))
			strbuf_addstr(&sb, "squash! ");
		else {
			struct pretty_print_context ctx = {0};
			struct commit *c;
			c = lookup_commit_reference_by_name(squash_message);
			if (!c)
				die("could not lookup commit %s", squash_message);
			ctx.output_encoding = get_commit_output_encoding();
			format_commit_message(c, "squash! %s\n\n", &sb,
					      &ctx);
		}
	}

	if (message.len) {
		strbuf_addbuf(&sb, &message);
		hook_arg1 = "message";
	} else if (logfile && !strcmp(logfile, "-")) {
		if (isatty(0))
			fprintf(stderr, "(reading log message from standard input)\n");
		if (strbuf_read(&sb, 0, 0) < 0)
			die_errno("could not read log from standard input");
		hook_arg1 = "message";
	} else if (logfile) {
		if (strbuf_read_file(&sb, logfile, 0) < 0)
			die_errno("could not read log file '%s'",
				  logfile);
		hook_arg1 = "message";
	} else if (use_message) {
		buffer = strstr(use_message_buffer, "\n\n");
		if (!buffer || buffer[2] == '\0')
			die("commit has empty message");
		strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
		hook_arg1 = "commit";
		hook_arg2 = use_message;
	} else if (fixup_message) {
		struct pretty_print_context ctx = {0};
		struct commit *commit;
		commit = lookup_commit_reference_by_name(fixup_message);
		if (!commit)
			die("could not lookup commit %s", fixup_message);
		ctx.output_encoding = get_commit_output_encoding();
		format_commit_message(commit, "fixup! %s\n\n",
				      &sb, &ctx);
		hook_arg1 = "message";
	} else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
		if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
			die_errno("could not read MERGE_MSG");
		hook_arg1 = "merge";
	} else if (!stat(git_path("SQUASH_MSG"), &statbuf)) {
		if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0)
			die_errno("could not read SQUASH_MSG");
		hook_arg1 = "squash";
	} else if (template_file && !stat(template_file, &statbuf)) {
		if (strbuf_read_file(&sb, template_file, 0) < 0)
			die_errno("could not read '%s'", template_file);
		hook_arg1 = "template";
	}

	/*
	 * This final case does not modify the template message,
	 * it just sets the argument to the prepare-commit-msg hook.
	 */
	else if (in_merge)
		hook_arg1 = "merge";

	if (squash_message) {
		/*
		 * If squash_commit was used for the commit subject,
		 * then we're possibly hijacking other commit log options.
		 * Reset the hook args to tell the real story.
		 */
		hook_arg1 = "message";
		hook_arg2 = "";
	}

	fp = fopen(git_path(commit_editmsg), "w");
	if (fp == NULL)
		die_errno("could not open '%s'", git_path(commit_editmsg));

	if (cleanup_mode != CLEANUP_NONE)
		stripspace(&sb, 0);

	if (signoff) {
		struct strbuf sob = STRBUF_INIT;
		int i;

		strbuf_addstr(&sob, sign_off_header);
		strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
					     getenv("GIT_COMMITTER_EMAIL")));
		strbuf_addch(&sob, '\n');
		for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--)
			; /* do nothing */
		if (prefixcmp(sb.buf + i, sob.buf)) {
			if (!i || !ends_rfc2822_footer(&sb))
				strbuf_addch(&sb, '\n');
			strbuf_addbuf(&sb, &sob);
		}
		strbuf_release(&sob);
	}

	if (fwrite(sb.buf, 1, sb.len, fp) < sb.len)
		die_errno("could not write commit template");

	strbuf_release(&sb);

	determine_author_info();

	/* This checks if committer ident is explicitly given */
	git_committer_info(0);
	if (use_editor && include_status) {
		char *author_ident;
		const char *committer_ident;

		if (in_merge)
			fprintf(fp,
				"#\n"
				"# It looks like you may be committing a MERGE.\n"
				"# If this is not correct, please remove the file\n"
				"#	%s\n"
				"# and try again.\n"
				"#\n",
				git_path("MERGE_HEAD"));

		fprintf(fp,
			"\n"
			"# Please enter the commit message for your changes.");
		if (cleanup_mode == CLEANUP_ALL)
			fprintf(fp,
				" Lines starting\n"
				"# with '#' will be ignored, and an empty"
				" message aborts the commit.\n");
		else /* CLEANUP_SPACE, that is. */
			fprintf(fp,
				" Lines starting\n"
				"# with '#' will be kept; you may remove them"
				" yourself if you want to.\n"
				"# An empty message aborts the commit.\n");
		if (only_include_assumed)
			fprintf(fp, "# %s\n", only_include_assumed);

		author_ident = xstrdup(fmt_name(author_name, author_email));
		committer_ident = fmt_name(getenv("GIT_COMMITTER_NAME"),
					   getenv("GIT_COMMITTER_EMAIL"));
		if (strcmp(author_ident, committer_ident))
			fprintf(fp,
				"%s"
				"# Author:    %s\n",
				ident_shown++ ? "" : "#\n",
				author_ident);
		free(author_ident);

		if (!user_ident_sufficiently_given())
			fprintf(fp,
				"%s"
				"# Committer: %s\n",
				ident_shown++ ? "" : "#\n",
				committer_ident);

		if (ident_shown)
			fprintf(fp, "#\n");

		saved_color_setting = s->use_color;
		s->use_color = 0;
		commitable = run_status(fp, index_file, prefix, 1, s);
		s->use_color = saved_color_setting;
	} else {
		unsigned char sha1[20];
		const char *parent = "HEAD";

		if (!active_nr && read_cache() < 0)
			die("Cannot read index");

		if (amend)
			parent = "HEAD^1";

		if (get_sha1(parent, sha1))
			commitable = !!active_nr;
		else
			commitable = index_differs_from(parent, 0);
	}

	fclose(fp);

	if (!commitable && !in_merge && !allow_empty &&
	    !(amend && is_a_merge(head_sha1))) {
		run_status(stdout, index_file, prefix, 0, s);
		if (amend)
			fputs(empty_amend_advice, stderr);
		return 0;
	}

	/*
	 * Re-read the index as pre-commit hook could have updated it,
	 * and write it out as a tree.  We must do this before we invoke
	 * the editor and after we invoke run_status above.
	 */
	discard_cache();
	read_cache_from(index_file);
	if (!active_cache_tree)
		active_cache_tree = cache_tree();
	if (cache_tree_update(active_cache_tree,
			      active_cache, active_nr, 0, 0) < 0) {
		error("Error building trees");
		return 0;
	}

	if (run_hook(index_file, "prepare-commit-msg",
		     git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
		return 0;

	if (use_editor) {
		char index[PATH_MAX];
		const char *env[2] = { NULL };
		env[0] =  index;
		snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
		if (launch_editor(git_path(commit_editmsg), NULL, env)) {
			fprintf(stderr,
			"Please supply the message using either -m or -F option.\n");
			exit(1);
		}
	}

	if (!no_verify &&
	    run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
		return 0;
	}

	return 1;
}
示例#9
0
文件: revert.c 项目: MikeBrWade/git
static int do_pick_commit(void)
{
	unsigned char head[20];
	struct commit *base, *next, *parent;
	const char *base_label, *next_label;
	struct commit_message msg = { NULL, NULL, NULL, NULL, NULL };
	char *defmsg = NULL;
	struct strbuf msgbuf = STRBUF_INIT;
	int res;

	if (no_commit) {
		/*
		 * We do not intend to commit immediately.  We just want to
		 * merge the differences in, so let's compute the tree
		 * that represents the "current" state for merge-recursive
		 * to work on.
		 */
		if (write_cache_as_tree(head, 0, NULL))
			die ("Your index file is unmerged.");
	} else {
		if (get_sha1("HEAD", head))
			die ("You do not have a valid HEAD");
		if (index_differs_from("HEAD", 0))
			die_dirty_index(me);
	}
	discard_cache();

	if (!commit->parents) {
		if (action == REVERT)
			die ("Cannot revert a root commit");
		parent = NULL;
	}
	else if (commit->parents->next) {
		/* Reverting or cherry-picking a merge commit */
		int cnt;
		struct commit_list *p;

		if (!mainline)
			die("Commit %s is a merge but no -m option was given.",
			    sha1_to_hex(commit->object.sha1));

		for (cnt = 1, p = commit->parents;
		     cnt != mainline && p;
		     cnt++)
			p = p->next;
		if (cnt != mainline || !p)
			die("Commit %s does not have parent %d",
			    sha1_to_hex(commit->object.sha1), mainline);
		parent = p->item;
	} else if (0 < mainline)
		die("Mainline was specified but commit %s is not a merge.",
		    sha1_to_hex(commit->object.sha1));
	else
		parent = commit->parents->item;

	if (allow_ff && parent && !hashcmp(parent->object.sha1, head))
		return fast_forward_to(commit->object.sha1, head);

	if (parent && parse_commit(parent) < 0)
		die("%s: cannot parse parent commit %s",
		    me, sha1_to_hex(parent->object.sha1));

	if (get_message(commit->buffer, &msg) != 0)
		die("Cannot get commit message for %s",
				sha1_to_hex(commit->object.sha1));

	/*
	 * "commit" is an existing commit.  We would want to apply
	 * the difference it introduces since its first parent "prev"
	 * on top of the current HEAD if we are cherry-pick.  Or the
	 * reverse of it if we are revert.
	 */

	defmsg = git_pathdup("MERGE_MSG");

	if (action == REVERT) {
		base = commit;
		base_label = msg.label;
		next = parent;
		next_label = msg.parent_label;
		strbuf_addstr(&msgbuf, "Revert \"");
		strbuf_addstr(&msgbuf, msg.subject);
		strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit ");
		strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1));

		if (commit->parents->next) {
			strbuf_addstr(&msgbuf, ", reversing\nchanges made to ");
			strbuf_addstr(&msgbuf, sha1_to_hex(parent->object.sha1));
		}
		strbuf_addstr(&msgbuf, ".\n");
	} else {
		base = parent;
		base_label = msg.parent_label;
		next = commit;
		next_label = msg.label;
		add_message_to_msg(&msgbuf, msg.message);
		if (no_replay) {
			strbuf_addstr(&msgbuf, "(cherry picked from commit ");
			strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1));
			strbuf_addstr(&msgbuf, ")\n");
		}
		if (!no_commit)
			write_cherry_pick_head();
	}

	if (!strategy || !strcmp(strategy, "recursive") || action == REVERT) {
		res = do_recursive_merge(base, next, base_label, next_label,
					 head, &msgbuf);
		write_message(&msgbuf, defmsg);
	} else {
		struct commit_list *common = NULL;
		struct commit_list *remotes = NULL;

		write_message(&msgbuf, defmsg);

		commit_list_insert(base, &common);
		commit_list_insert(next, &remotes);
		res = try_merge_command(strategy, xopts_nr, xopts, common,
					sha1_to_hex(head), remotes);
		free_commit_list(common);
		free_commit_list(remotes);
	}

	if (res) {
		error("could not %s %s... %s",
		      action == REVERT ? "revert" : "apply",
		      find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV),
		      msg.subject);
		print_advice();
		rerere(allow_rerere_auto);
	} else {
		if (!no_commit)
			res = run_git_commit(defmsg);
	}

	free_message(&msg);
	free(defmsg);

	return res;
}