1 files changed, 101 insertions, 88 deletions

diff --git a/sequencer.c b/sequencer.c
index fd7701c..d7db076 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -16,7 +16,7 @@
 #include "rerere.h"
 #include "merge-recursive.h"
 #include "refs.h"
-#include "argv-array.h"
+#include "strvec.h"
 #include "quote.h"
 #include "trailer.h"
 #include "log-tree.h"
@@ -355,7 +355,7 @@ static int get_message(struct commit *commit, struct commit_message *out)
 	subject_len = find_commit_subject(out->message, &subject);
 
 	out->subject = xmemdupz(subject, subject_len);
-	out->label = xstrfmt("%s... %s", abbrev, out->subject);
+	out->label = xstrfmt("%s (%s)", abbrev, out->subject);
 	out->parent_label = xstrfmt("parent of %s", out->label);
 
 	return 0;
@@ -381,7 +381,8 @@ static void print_advice(struct repository *r, int show_hint,
 		 * (typically rebase --interactive) wants to take care
 		 * of the commit itself so remove CHERRY_PICK_HEAD
 		 */
-		unlink(git_path_cherry_pick_head(r));
+		refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD",
+				NULL, 0);
 		return;
 	}
 
@@ -830,10 +831,10 @@ finish:
 
 /*
  * Read a GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL AND GIT_AUTHOR_DATE from a
- * file with shell quoting into struct argv_array. Returns -1 on
+ * file with shell quoting into struct strvec. Returns -1 on
  * error, 0 otherwise.
  */
-static int read_env_script(struct argv_array *env)
+static int read_env_script(struct strvec *env)
 {
 	char *name, *email, *date;
 
@@ -841,9 +842,9 @@ static int read_env_script(struct argv_array *env)
 			       &name, &email, &date, 0))
 		return -1;
 
-	argv_array_pushf(env, "GIT_AUTHOR_NAME=%s", name);
-	argv_array_pushf(env, "GIT_AUTHOR_EMAIL=%s", email);
-	argv_array_pushf(env, "GIT_AUTHOR_DATE=%s", date);
+	strvec_pushf(env, "GIT_AUTHOR_NAME=%s", name);
+	strvec_pushf(env, "GIT_AUTHOR_EMAIL=%s", email);
+	strvec_pushf(env, "GIT_AUTHOR_DATE=%s", date);
 	free(name);
 	free(email);
 	free(date);
@@ -929,34 +930,34 @@ static int run_git_commit(struct repository *r,
 			     gpg_opt, gpg_opt);
 	}
 
-	argv_array_push(&cmd.args, "commit");
+	strvec_push(&cmd.args, "commit");
 
 	if (!(flags & VERIFY_MSG))
-		argv_array_push(&cmd.args, "-n");
+		strvec_push(&cmd.args, "-n");
 	if ((flags & AMEND_MSG))
-		argv_array_push(&cmd.args, "--amend");
+		strvec_push(&cmd.args, "--amend");
 	if (opts->gpg_sign)
-		argv_array_pushf(&cmd.args, "-S%s", opts->gpg_sign);
+		strvec_pushf(&cmd.args, "-S%s", opts->gpg_sign);
 	else
-		argv_array_push(&cmd.args, "--no-gpg-sign");
+		strvec_push(&cmd.args, "--no-gpg-sign");
 	if (defmsg)
-		argv_array_pushl(&cmd.args, "-F", defmsg, NULL);
+		strvec_pushl(&cmd.args, "-F", defmsg, NULL);
 	else if (!(flags & EDIT_MSG))
-		argv_array_pushl(&cmd.args, "-C", "HEAD", NULL);
+		strvec_pushl(&cmd.args, "-C", "HEAD", NULL);
 	if ((flags & CLEANUP_MSG))
-		argv_array_push(&cmd.args, "--cleanup=strip");
+		strvec_push(&cmd.args, "--cleanup=strip");
 	if ((flags & EDIT_MSG))
-		argv_array_push(&cmd.args, "-e");
+		strvec_push(&cmd.args, "-e");
 	else if (!(flags & CLEANUP_MSG) &&
 		 !opts->signoff && !opts->record_origin &&
 		 !opts->explicit_cleanup)
-		argv_array_push(&cmd.args, "--cleanup=verbatim");
+		strvec_push(&cmd.args, "--cleanup=verbatim");
 
 	if ((flags & ALLOW_EMPTY))
-		argv_array_push(&cmd.args, "--allow-empty");
+		strvec_push(&cmd.args, "--allow-empty");
 
 	if (!(flags & EDIT_MSG))
-		argv_array_push(&cmd.args, "--allow-empty-message");
+		strvec_push(&cmd.args, "--allow-empty-message");
 
 	if (is_rebase_i(opts) && !(flags & EDIT_MSG))
 		return run_command_silent_on_success(&cmd);
@@ -1455,7 +1456,8 @@ static int do_commit(struct repository *r,
 				    author, opts, flags, &oid);
 		strbuf_release(&sb);
 		if (!res) {
-			unlink(git_path_cherry_pick_head(r));
+			refs_delete_ref(get_main_ref_store(r), "",
+					"CHERRY_PICK_HEAD", NULL, 0);
 			unlink(git_path_merge_msg(r));
 			if (!is_rebase_i(opts))
 				print_commit_summary(r, NULL, &oid,
@@ -1966,7 +1968,8 @@ static int do_pick_commit(struct repository *r,
 		flags |= ALLOW_EMPTY;
 	} else if (allow == 2) {
 		drop_commit = 1;
-		unlink(git_path_cherry_pick_head(r));
+		refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD",
+				NULL, 0);
 		unlink(git_path_merge_msg(r));
 		fprintf(stderr,
 			_("dropping %s %s -- patch contents already upstream\n"),
@@ -2305,15 +2308,19 @@ void sequencer_post_commit_cleanup(struct repository *r, int verbose)
 	struct replay_opts opts = REPLAY_OPTS_INIT;
 	int need_cleanup = 0;
 
-	if (file_exists(git_path_cherry_pick_head(r))) {
-		if (!unlink(git_path_cherry_pick_head(r)) && verbose)
+	if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD")) {
+		if (!refs_delete_ref(get_main_ref_store(r), "",
+				     "CHERRY_PICK_HEAD", NULL, 0) &&
+		    verbose)
 			warning(_("cancelling a cherry picking in progress"));
 		opts.action = REPLAY_PICK;
 		need_cleanup = 1;
 	}
 
-	if (file_exists(git_path_revert_head(r))) {
-		if (!unlink(git_path_revert_head(r)) && verbose)
+	if (refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) {
+		if (!refs_delete_ref(get_main_ref_store(r), "", "REVERT_HEAD",
+				     NULL, 0) &&
+		    verbose)
 			warning(_("cancelling a revert in progress"));
 		opts.action = REPLAY_REVERT;
 		need_cleanup = 1;
@@ -2671,8 +2678,9 @@ static int create_seq_dir(struct repository *r)
 	enum replay_action action;
 	const char *in_progress_error = NULL;
 	const char *in_progress_advice = NULL;
-	unsigned int advise_skip = file_exists(git_path_revert_head(r)) ||
-				file_exists(git_path_cherry_pick_head(r));
+	unsigned int advise_skip =
+		refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD") ||
+		refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD");
 
 	if (!sequencer_get_last_command(r, &action)) {
 		switch (action) {
@@ -2754,15 +2762,15 @@ static int rollback_is_safe(void)
 static int reset_merge(const struct object_id *oid)
 {
 	int ret;
-	struct argv_array argv = ARGV_ARRAY_INIT;
+	struct strvec argv = STRVEC_INIT;
 
-	argv_array_pushl(&argv, "reset", "--merge", NULL);
+	strvec_pushl(&argv, "reset", "--merge", NULL);
 
 	if (!is_null_oid(oid))
-		argv_array_push(&argv, oid_to_hex(oid));
+		strvec_push(&argv, oid_to_hex(oid));
 
-	ret = run_command_v_opt(argv.argv, RUN_GIT_CMD);
-	argv_array_clear(&argv);
+	ret = run_command_v_opt(argv.v, RUN_GIT_CMD);
+	strvec_clear(&argv);
 
 	return ret;
 }
@@ -2771,8 +2779,8 @@ static int rollback_single_pick(struct repository *r)
 {
 	struct object_id head_oid;
 
-	if (!file_exists(git_path_cherry_pick_head(r)) &&
-	    !file_exists(git_path_revert_head(r)))
+	if (!refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") &&
+	    !refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD"))
 		return error(_("no cherry-pick or revert in progress"));
 	if (read_ref_full("HEAD", 0, &head_oid, NULL))
 		return error(_("cannot resolve HEAD"));
@@ -2866,7 +2874,7 @@ int sequencer_skip(struct repository *r, struct replay_opts *opts)
 	 */
 	switch (opts->action) {
 	case REPLAY_REVERT:
-		if (!file_exists(git_path_revert_head(r))) {
+		if (!refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) {
 			if (action != REPLAY_REVERT)
 				return error(_("no revert in progress"));
 			if (!rollback_is_safe())
@@ -2874,7 +2882,8 @@ int sequencer_skip(struct repository *r, struct replay_opts *opts)
 		}
 		break;
 	case REPLAY_PICK:
-		if (!file_exists(git_path_cherry_pick_head(r))) {
+		if (!refs_ref_exists(get_main_ref_store(r),
+				     "CHERRY_PICK_HEAD")) {
 			if (action != REPLAY_PICK)
 				return error(_("no cherry-pick in progress"));
 			if (!rollback_is_safe())
@@ -3125,17 +3134,17 @@ static int error_failed_squash(struct repository *r,
 
 static int do_exec(struct repository *r, const char *command_line)
 {
-	struct argv_array child_env = ARGV_ARRAY_INIT;
+	struct strvec child_env = STRVEC_INIT;
 	const char *child_argv[] = { NULL, NULL };
 	int dirty, status;
 
 	fprintf(stderr, _("Executing: %s\n"), command_line);
 	child_argv[0] = command_line;
-	argv_array_pushf(&child_env, "GIT_DIR=%s", absolute_path(get_git_dir()));
-	argv_array_pushf(&child_env, "GIT_WORK_TREE=%s",
-			 absolute_path(get_git_work_tree()));
+	strvec_pushf(&child_env, "GIT_DIR=%s", absolute_path(get_git_dir()));
+	strvec_pushf(&child_env, "GIT_WORK_TREE=%s",
+		     absolute_path(get_git_work_tree()));
 	status = run_command_v_opt_cd_env(child_argv, RUN_USING_SHELL, NULL,
-					  child_env.argv);
+					  child_env.v);
 
 	/* force re-reading of the cache */
 	if (discard_index(r->index) < 0 || repo_read_index(r) < 0)
@@ -3165,7 +3174,7 @@ static int do_exec(struct repository *r, const char *command_line)
 		status = 1;
 	}
 
-	argv_array_clear(&child_env);
+	strvec_clear(&child_env);
 
 	return status;
 }
@@ -3544,32 +3553,33 @@ static int do_merge(struct repository *r,
 		}
 
 		cmd.git_cmd = 1;
-		argv_array_push(&cmd.args, "merge");
-		argv_array_push(&cmd.args, "-s");
+		strvec_push(&cmd.args, "merge");
+		strvec_push(&cmd.args, "-s");
 		if (!strategy)
-			argv_array_push(&cmd.args, "octopus");
+			strvec_push(&cmd.args, "octopus");
 		else {
-			argv_array_push(&cmd.args, strategy);
+			strvec_push(&cmd.args, strategy);
 			for (k = 0; k < opts->xopts_nr; k++)
-				argv_array_pushf(&cmd.args,
-						 "-X%s", opts->xopts[k]);
+				strvec_pushf(&cmd.args,
+					     "-X%s", opts->xopts[k]);
 		}
-		argv_array_push(&cmd.args, "--no-edit");
-		argv_array_push(&cmd.args, "--no-ff");
-		argv_array_push(&cmd.args, "--no-log");
-		argv_array_push(&cmd.args, "--no-stat");
-		argv_array_push(&cmd.args, "-F");
-		argv_array_push(&cmd.args, git_path_merge_msg(r));
+		strvec_push(&cmd.args, "--no-edit");
+		strvec_push(&cmd.args, "--no-ff");
+		strvec_push(&cmd.args, "--no-log");
+		strvec_push(&cmd.args, "--no-stat");
+		strvec_push(&cmd.args, "-F");
+		strvec_push(&cmd.args, git_path_merge_msg(r));
 		if (opts->gpg_sign)
-			argv_array_push(&cmd.args, opts->gpg_sign);
+			strvec_push(&cmd.args, opts->gpg_sign);
 
 		/* Add the tips to be merged */
 		for (j = to_merge; j; j = j->next)
-			argv_array_push(&cmd.args,
-					oid_to_hex(&j->item->object.oid));
+			strvec_push(&cmd.args,
+				    oid_to_hex(&j->item->object.oid));
 
 		strbuf_release(&ref_name);
-		unlink(git_path_cherry_pick_head(r));
+		refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD",
+				NULL, 0);
 		rollback_lock_file(&lock);
 
 		rollback_lock_file(&lock);
@@ -3694,8 +3704,8 @@ void create_autostash(struct repository *r, const char *path,
 		struct child_process stash = CHILD_PROCESS_INIT;
 		struct object_id oid;
 
-		argv_array_pushl(&stash.args,
-				 "stash", "create", "autostash", NULL);
+		strvec_pushl(&stash.args,
+			     "stash", "create", "autostash", NULL);
 		stash.git_cmd = 1;
 		stash.no_stdin = 1;
 		strbuf_reset(&buf);
@@ -3734,9 +3744,9 @@ static int apply_save_autostash_oid(const char *stash_oid, int attempt_apply)
 		child.git_cmd = 1;
 		child.no_stdout = 1;
 		child.no_stderr = 1;
-		argv_array_push(&child.args, "stash");
-		argv_array_push(&child.args, "apply");
-		argv_array_push(&child.args, stash_oid);
+		strvec_push(&child.args, "stash");
+		strvec_push(&child.args, "apply");
+		strvec_push(&child.args, stash_oid);
 		ret = run_command(&child);
 	}
 
@@ -3746,12 +3756,12 @@ static int apply_save_autostash_oid(const char *stash_oid, int attempt_apply)
 		struct child_process store = CHILD_PROCESS_INIT;
 
 		store.git_cmd = 1;
-		argv_array_push(&store.args, "stash");
-		argv_array_push(&store.args, "store");
-		argv_array_push(&store.args, "-m");
-		argv_array_push(&store.args, "autostash");
-		argv_array_push(&store.args, "-q");
-		argv_array_push(&store.args, stash_oid);
+		strvec_push(&store.args, "stash");
+		strvec_push(&store.args, "store");
+		strvec_push(&store.args, "-m");
+		strvec_push(&store.args, "autostash");
+		strvec_push(&store.args, "-q");
+		strvec_push(&store.args, stash_oid);
 		if (run_command(&store))
 			ret = error(_("cannot store %s"), stash_oid);
 		else
@@ -3831,9 +3841,9 @@ static int run_git_checkout(struct repository *r, struct replay_opts *opts,
 
 	cmd.git_cmd = 1;
 
-	argv_array_push(&cmd.args, "checkout");
-	argv_array_push(&cmd.args, commit);
-	argv_array_pushf(&cmd.env_array, GIT_REFLOG_ACTION "=%s", action);
+	strvec_push(&cmd.args, "checkout");
+	strvec_push(&cmd.args, commit);
+	strvec_pushf(&cmd.env_array, GIT_REFLOG_ACTION "=%s", action);
 
 	if (opts->verbose)
 		ret = run_command(&cmd);
@@ -4157,9 +4167,9 @@ cleanup_head_ref:
 
 			child.in = open(rebase_path_rewritten_list(), O_RDONLY);
 			child.git_cmd = 1;
-			argv_array_push(&child.args, "notes");
-			argv_array_push(&child.args, "copy");
-			argv_array_push(&child.args, "--for-rewrite=rebase");
+			strvec_push(&child.args, "notes");
+			strvec_push(&child.args, "copy");
+			strvec_push(&child.args, "--for-rewrite=rebase");
 			/* we don't care if this copying failed */
 			run_command(&child);
 
@@ -4170,8 +4180,8 @@ cleanup_head_ref:
 					O_RDONLY);
 				hook.stdout_to_stderr = 1;
 				hook.trace2_hook_name = "post-rewrite";
-				argv_array_push(&hook.args, post_rewrite_hook);
-				argv_array_push(&hook.args, "rebase");
+				strvec_push(&hook.args, post_rewrite_hook);
+				strvec_push(&hook.args, "rebase");
 				/* we don't care if this hook failed */
 				run_command(&hook);
 			}
@@ -4201,8 +4211,8 @@ static int continue_single_pick(struct repository *r)
 {
 	const char *argv[] = { "commit", NULL };
 
-	if (!file_exists(git_path_cherry_pick_head(r)) &&
-	    !file_exists(git_path_revert_head(r)))
+	if (!refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") &&
+	    !refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD"))
 		return error(_("no cherry-pick or revert in progress"));
 	return run_command_v_opt(argv, RUN_GIT_CMD);
 }
@@ -4318,9 +4328,10 @@ static int commit_staged_changes(struct repository *r,
 	}
 
 	if (is_clean) {
-		const char *cherry_pick_head = git_path_cherry_pick_head(r);
-
-		if (file_exists(cherry_pick_head) && unlink(cherry_pick_head))
+		if (refs_ref_exists(get_main_ref_store(r),
+				    "CHERRY_PICK_HEAD") &&
+		    refs_delete_ref(get_main_ref_store(r), "",
+				    "CHERRY_PICK_HEAD", NULL, 0))
 			return error(_("could not remove CHERRY_PICK_HEAD"));
 		if (!final_fixup)
 			return 0;
@@ -4379,8 +4390,9 @@ int sequencer_continue(struct repository *r, struct replay_opts *opts)
 
 	if (!is_rebase_i(opts)) {
 		/* Verify that the conflict has been resolved */
-		if (file_exists(git_path_cherry_pick_head(r)) ||
-		    file_exists(git_path_revert_head(r))) {
+		if (refs_ref_exists(get_main_ref_store(r),
+				    "CHERRY_PICK_HEAD") ||
+		    refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) {
 			res = continue_single_pick(r);
 			if (res)
 				goto release_todo_list;
@@ -5178,13 +5190,14 @@ int complete_action(struct repository *r, struct replay_opts *opts, unsigned fla
 		    struct string_list *commands, unsigned autosquash,
 		    struct todo_list *todo_list)
 {
-	const char *shortonto, *todo_file = rebase_path_todo();
+	char shortonto[GIT_MAX_HEXSZ + 1];
+	const char *todo_file = rebase_path_todo();
 	struct todo_list new_todo = TODO_LIST_INIT;
 	struct strbuf *buf = &todo_list->buf, buf2 = STRBUF_INIT;
 	struct object_id oid = onto->object.oid;
 	int res;
 
-	shortonto = find_unique_abbrev(&oid, DEFAULT_ABBREV);
+	find_unique_abbrev_r(shortonto, &oid, DEFAULT_ABBREV);
 
 	if (buf->len == 0) {
 		struct todo_item *item = append_new_todo(todo_list);
@@ -5442,7 +5455,7 @@ int todo_list_rearrange_squash(struct todo_list *todo_list)
 
 int sequencer_determine_whence(struct repository *r, enum commit_whence *whence)
 {
-	if (file_exists(git_path_cherry_pick_head(r))) {
+	if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD")) {
 		struct object_id cherry_pick_head, rebase_head;
 
 		if (file_exists(git_path_seq_dir()))