return 1;
}
-static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
+enum todo_command {
+ TODO_PICK = 0,
+ TODO_REVERT
+};
+
+static const char *todo_command_strings[] = {
+ "pick",
+ "revert"
+};
+
+static const char *command_to_string(const enum todo_command command)
+{
+ if (command < ARRAY_SIZE(todo_command_strings))
+ return todo_command_strings[command];
+ die("Unknown command: %d", command);
+}
+
+
+static int do_pick_commit(enum todo_command command, struct commit *commit,
+ struct replay_opts *opts)
{
unsigned char head[20];
struct commit *base, *next, *parent;
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 */
+ /* TRANSLATORS: The first %s will be a "todo" command like
+ "revert" or "pick", the second %s a SHA1. */
return error(_("%s: cannot parse parent commit %s"),
- action_name(opts), oid_to_hex(&parent->object.oid));
+ command_to_string(command),
+ oid_to_hex(&parent->object.oid));
if (get_message(commit, &msg) != 0)
return error(_("Cannot get commit message for %s"),
* reverse of it if we are revert.
*/
- if (opts->action == REPLAY_REVERT) {
+ if (command == TODO_REVERT) {
base = commit;
base_label = msg.label;
next = parent;
}
}
- if (!opts->strategy || !strcmp(opts->strategy, "recursive") || opts->action == REPLAY_REVERT) {
+ if (!opts->strategy || !strcmp(opts->strategy, "recursive") || command == TODO_REVERT) {
res = do_recursive_merge(base, next, base_label, next_label,
head, &msgbuf, opts);
if (res < 0)
* 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) &&
+ if (command == TODO_PICK && !opts->no_commit && (res == 0 || res == 1) &&
update_ref(NULL, "CHERRY_PICK_HEAD", commit->object.oid.hash, NULL,
REF_NODEREF, UPDATE_REFS_MSG_ON_ERR))
res = -1;
- if (opts->action == REPLAY_REVERT && ((opts->no_commit && res == 0) || res == 1) &&
+ if (command == TODO_REVERT && ((opts->no_commit && res == 0) || res == 1) &&
update_ref(NULL, "REVERT_HEAD", commit->object.oid.hash, NULL,
REF_NODEREF, UPDATE_REFS_MSG_ON_ERR))
res = -1;
if (res) {
- error(opts->action == REPLAY_REVERT
+ error(command == TODO_REVERT
? _("could not revert %s... %s")
: _("could not apply %s... %s"),
short_commit_name(commit), msg.subject);
return 0;
}
-static int format_todo(struct strbuf *buf, struct commit_list *todo_list,
- struct replay_opts *opts)
+struct todo_item {
+ enum todo_command command;
+ struct commit *commit;
+ size_t offset_in_buf;
+};
+
+struct todo_list {
+ struct strbuf buf;
+ struct todo_item *items;
+ int nr, alloc, current;
+};
+
+#define TODO_LIST_INIT { STRBUF_INIT }
+
+static void todo_list_release(struct todo_list *todo_list)
{
- struct commit_list *cur = NULL;
- const char *sha1_abbrev = NULL;
- const char *action_str = opts->action == REPLAY_REVERT ? "revert" : "pick";
- const char *subject;
- int subject_len;
+ strbuf_release(&todo_list->buf);
+ free(todo_list->items);
+ todo_list->items = NULL;
+ todo_list->nr = todo_list->alloc = 0;
+}
- for (cur = todo_list; cur; cur = cur->next) {
- const char *commit_buffer = get_commit_buffer(cur->item, NULL);
- sha1_abbrev = find_unique_abbrev(cur->item->object.oid.hash, DEFAULT_ABBREV);
- subject_len = find_commit_subject(commit_buffer, &subject);
- strbuf_addf(buf, "%s %s %.*s\n", action_str, sha1_abbrev,
- subject_len, subject);
- unuse_commit_buffer(cur->item, commit_buffer);
- }
- return 0;
+static struct todo_item *append_new_todo(struct todo_list *todo_list)
+{
+ ALLOC_GROW(todo_list->items, todo_list->nr + 1, todo_list->alloc);
+ return todo_list->items + todo_list->nr++;
}
-static struct commit *parse_insn_line(char *bol, char *eol, struct replay_opts *opts)
+static int parse_insn_line(struct todo_item *item, const char *bol, char *eol)
{
unsigned char commit_sha1[20];
- enum replay_action action;
char *end_of_object_name;
- int saved, status, padding;
-
- if (starts_with(bol, "pick")) {
- action = REPLAY_PICK;
- bol += strlen("pick");
- } else if (starts_with(bol, "revert")) {
- action = REPLAY_REVERT;
- bol += strlen("revert");
- } else
- return NULL;
+ int i, saved, status, padding;
+
+ for (i = 0; i < ARRAY_SIZE(todo_command_strings); i++)
+ if (skip_prefix(bol, todo_command_strings[i], &bol)) {
+ item->command = i;
+ break;
+ }
+ if (i >= ARRAY_SIZE(todo_command_strings))
+ return -1;
/* Eat up extra spaces/ tabs before object name */
padding = strspn(bol, " \t");
if (!padding)
- return NULL;
+ return -1;
bol += padding;
- end_of_object_name = bol + strcspn(bol, " \t\n");
+ end_of_object_name = (char *) bol + strcspn(bol, " \t\n");
saved = *end_of_object_name;
*end_of_object_name = '\0';
status = get_sha1(bol, commit_sha1);
*end_of_object_name = saved;
- /*
- * Verify that the action matches up with the one in
- * opts; we don't support arbitrary instructions
- */
- if (action != opts->action) {
- if (action == REPLAY_REVERT)
- error((opts->action == REPLAY_REVERT)
- ? _("Cannot revert during another revert.")
- : _("Cannot revert during a cherry-pick."));
- else
- error((opts->action == REPLAY_REVERT)
- ? _("Cannot cherry-pick during a revert.")
- : _("Cannot cherry-pick during another cherry-pick."));
- return NULL;
- }
-
if (status < 0)
- return NULL;
+ return -1;
- return lookup_commit_reference(commit_sha1);
+ item->commit = lookup_commit_reference(commit_sha1);
+ return !item->commit;
}
-static int parse_insn_buffer(char *buf, struct commit_list **todo_list,
- struct replay_opts *opts)
+static int parse_insn_buffer(char *buf, struct todo_list *todo_list)
{
- struct commit_list **next = todo_list;
- struct commit *commit;
- char *p = buf;
- int i;
+ struct todo_item *item;
+ char *p = buf, *next_p;
+ int i, res = 0;
- for (i = 1; *p; i++) {
+ for (i = 1; *p; i++, p = next_p) {
char *eol = strchrnul(p, '\n');
- commit = parse_insn_line(p, eol, opts);
- if (!commit)
- return error(_("Could not parse line %d."), i);
- next = commit_list_append(commit, next);
- p = *eol ? eol + 1 : eol;
+
+ next_p = *eol ? eol + 1 /* skip LF */ : eol;
+
+ item = append_new_todo(todo_list);
+ item->offset_in_buf = p - todo_list->buf.buf;
+ if (parse_insn_line(item, p, eol)) {
+ res = error(_("Invalid line %d: %.*s"),
+ i, (int)(eol - p), p);
+ item->command = -1;
+ }
}
- if (!*todo_list)
+ if (!todo_list->nr)
return error(_("No commits parsed."));
- return 0;
+ return res;
}
-static int read_populate_todo(struct commit_list **todo_list,
+static int read_populate_todo(struct todo_list *todo_list,
struct replay_opts *opts)
{
const char *todo_file = get_todo_path(opts);
- struct strbuf buf = STRBUF_INIT;
int fd, res;
+ strbuf_reset(&todo_list->buf);
fd = open(todo_file, O_RDONLY);
if (fd < 0)
return error_errno(_("Could not open %s"), todo_file);
- if (strbuf_read(&buf, fd, 0) < 0) {
+ if (strbuf_read(&todo_list->buf, fd, 0) < 0) {
close(fd);
- strbuf_release(&buf);
return error(_("Could not read %s."), todo_file);
}
close(fd);
- res = parse_insn_buffer(buf.buf, todo_list, opts);
- strbuf_release(&buf);
+ res = parse_insn_buffer(todo_list->buf.buf, todo_list);
+ if (!res) {
+ enum todo_command valid =
+ opts->action == REPLAY_PICK ? TODO_PICK : TODO_REVERT;
+ int i;
+
+ for (i = 0; i < todo_list->nr; i++)
+ if (valid == todo_list->items[i].command)
+ continue;
+ else if (valid == TODO_PICK)
+ return error(_("Cannot cherry-pick during a revert."));
+ else
+ return error(_("Cannot revert during a cherry-pick."));
+ }
+
if (res)
return error(_("Unusable instruction sheet: %s"), todo_file);
return 0;
return 0;
}
-static int walk_revs_populate_todo(struct commit_list **todo_list,
+static int walk_revs_populate_todo(struct todo_list *todo_list,
struct replay_opts *opts)
{
+ enum todo_command command = opts->action == REPLAY_PICK ?
+ TODO_PICK : TODO_REVERT;
+ const char *command_string = todo_command_strings[command];
struct commit *commit;
- struct commit_list **next;
if (prepare_revs(opts))
return -1;
- next = todo_list;
- while ((commit = get_revision(opts->revs)))
- next = commit_list_append(commit, next);
+ while ((commit = get_revision(opts->revs))) {
+ struct todo_item *item = append_new_todo(todo_list);
+ const char *commit_buffer = get_commit_buffer(commit, NULL);
+ const char *subject;
+ int subject_len;
+
+ item->command = command;
+ item->commit = commit;
+ item->offset_in_buf = todo_list->buf.len;
+ subject_len = find_commit_subject(commit_buffer, &subject);
+ strbuf_addf(&todo_list->buf, "%s %s %.*s\n", command_string,
+ short_commit_name(commit), subject_len, subject);
+ unuse_commit_buffer(commit, commit_buffer);
+ }
return 0;
}
return -1;
}
-static int save_todo(struct commit_list *todo_list, struct replay_opts *opts)
+static int save_todo(struct todo_list *todo_list, struct replay_opts *opts)
{
static struct lock_file todo_lock;
- struct strbuf buf = STRBUF_INIT;
- int fd;
+ const char *todo_path = get_todo_path(opts);
+ int next = todo_list->current, offset, fd;
- fd = hold_lock_file_for_update(&todo_lock, git_path_todo_file(), 0);
+ fd = hold_lock_file_for_update(&todo_lock, todo_path, 0);
if (fd < 0)
- return error_errno(_("Could not lock '%s'"),
- git_path_todo_file());
- if (format_todo(&buf, todo_list, opts) < 0) {
- strbuf_release(&buf);
- return error(_("Could not format %s."), git_path_todo_file());
- }
- if (write_in_full(fd, buf.buf, buf.len) < 0) {
- strbuf_release(&buf);
- return error_errno(_("Could not write to %s"),
- git_path_todo_file());
- }
- if (commit_lock_file(&todo_lock) < 0) {
- strbuf_release(&buf);
- return error(_("Error wrapping up %s."), git_path_todo_file());
- }
- strbuf_release(&buf);
+ return error_errno(_("Could not lock '%s'"), todo_path);
+ offset = next < todo_list->nr ?
+ todo_list->items[next].offset_in_buf : todo_list->buf.len;
+ if (write_in_full(fd, todo_list->buf.buf + offset,
+ todo_list->buf.len - offset) < 0)
+ return error_errno(_("Could not write to '%s'"), todo_path);
+ if (commit_lock_file(&todo_lock) < 0)
+ return error(_("Error wrapping up %s."), todo_path);
return 0;
}
return res;
}
-static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts)
+static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts)
{
- struct commit_list *cur;
int res;
setenv(GIT_REFLOG_ACTION, action_name(opts), 0);
if (read_and_refresh_cache(opts))
return -1;
- for (cur = todo_list; cur; cur = cur->next) {
- if (save_todo(cur, opts))
+ while (todo_list->current < todo_list->nr) {
+ struct todo_item *item = todo_list->items + todo_list->current;
+ if (save_todo(todo_list, opts))
return -1;
- res = do_pick_commit(cur->item, opts);
+ res = do_pick_commit(item->command, item->commit, opts);
+ todo_list->current++;
if (res)
return res;
}
static int sequencer_continue(struct replay_opts *opts)
{
- struct commit_list *todo_list = NULL;
+ struct todo_list todo_list = TODO_LIST_INIT;
+ int res;
if (!file_exists(get_todo_path(opts)))
return continue_single_pick();
- if (read_populate_opts(opts) ||
- read_populate_todo(&todo_list, opts))
+ 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())) {
- int ret = continue_single_pick();
- if (ret)
- return ret;
+ res = continue_single_pick();
+ if (res)
+ goto release_todo_list;
}
- if (index_differs_from("HEAD", 0))
- return error_dirty_index(opts);
- todo_list = todo_list->next;
- return pick_commits(todo_list, opts);
+ if (index_differs_from("HEAD", 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;
}
static int single_pick(struct commit *cmit, struct replay_opts *opts)
{
setenv(GIT_REFLOG_ACTION, action_name(opts), 0);
- return do_pick_commit(cmit, opts);
+ return do_pick_commit(opts->action == REPLAY_PICK ?
+ TODO_PICK : TODO_REVERT, cmit, opts);
}
int sequencer_pick_revisions(struct replay_opts *opts)
{
- struct commit_list *todo_list = NULL;
+ struct todo_list todo_list = TODO_LIST_INIT;
unsigned char sha1[20];
- int i;
+ int i, res;
if (opts->subcommand == REPLAY_NONE)
assert(opts->revs);
return -1;
if (save_opts(opts))
return -1;
- return pick_commits(todo_list, opts);
+ res = pick_commits(&todo_list, opts);
+ todo_list_release(&todo_list);
+ return res;
}
void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag)
projects / thirdparty / git.git / blobdiff