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-rw-r--r--sequencer.c323
1 files changed, 226 insertions, 97 deletions
diff --git a/sequencer.c b/sequencer.c
index 16c1411054..65d371c746 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -307,7 +307,7 @@ static const char *action_name(const struct replay_opts *opts)
case REPLAY_INTERACTIVE_REBASE:
return N_("rebase -i");
}
- die(_("Unknown action: %d"), opts->action);
+ die(_("unknown action: %d"), opts->action);
}
struct commit_message {
@@ -433,7 +433,7 @@ static int read_oneliner(struct strbuf *buf,
static struct tree *empty_tree(void)
{
- return lookup_tree(the_hash_algo->empty_tree);
+ return lookup_tree(the_repository, the_repository->hash_algo->empty_tree);
}
static int error_dirty_index(struct replay_opts *opts)
@@ -594,7 +594,7 @@ static int is_index_unchanged(void)
if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, &head_oid, NULL))
return error(_("could not resolve HEAD commit"));
- head_commit = lookup_commit(&head_oid);
+ head_commit = lookup_commit(the_repository, &head_oid);
/*
* If head_commit is NULL, check_commit, called from
@@ -654,6 +654,7 @@ missing_author:
strbuf_addch(&buf, *(message++));
else
strbuf_addf(&buf, "'\\\\%c'", *(message++));
+ strbuf_addch(&buf, '\'');
res = write_message(buf.buf, buf.len, rebase_path_author_script(), 1);
strbuf_release(&buf);
return res;
@@ -708,43 +709,51 @@ static const char *read_author_ident(struct strbuf *buf)
const char *keys[] = {
"GIT_AUTHOR_NAME=", "GIT_AUTHOR_EMAIL=", "GIT_AUTHOR_DATE="
};
- char *in, *out, *eol;
- int i = 0, len;
+ struct strbuf out = STRBUF_INIT;
+ char *in, *eol;
+ const char *val[3];
+ int i = 0;
if (strbuf_read_file(buf, rebase_path_author_script(), 256) <= 0)
return NULL;
/* dequote values and construct ident line in-place */
- for (in = out = buf->buf; i < 3 && in - buf->buf < buf->len; i++) {
+ for (in = buf->buf; i < 3 && in - buf->buf < buf->len; i++) {
if (!skip_prefix(in, keys[i], (const char **)&in)) {
- warning("could not parse '%s' (looking for '%s'",
+ warning(_("could not parse '%s' (looking for '%s'"),
rebase_path_author_script(), keys[i]);
return NULL;
}
eol = strchrnul(in, '\n');
*eol = '\0';
- sq_dequote(in);
- len = strlen(in);
-
- if (i > 0) /* separate values by spaces */
- *(out++) = ' ';
- if (i == 1) /* email needs to be surrounded by <...> */
- *(out++) = '<';
- memmove(out, in, len);
- out += len;
- if (i == 1) /* email needs to be surrounded by <...> */
- *(out++) = '>';
+ if (!sq_dequote(in)) {
+ warning(_("bad quoting on %s value in '%s'"),
+ keys[i], rebase_path_author_script());
+ return NULL;
+ }
+ val[i] = in;
in = eol + 1;
}
if (i < 3) {
- warning("could not parse '%s' (looking for '%s')",
+ warning(_("could not parse '%s' (looking for '%s')"),
rebase_path_author_script(), keys[i]);
return NULL;
}
- buf->len = out - buf->buf;
+ /* validate date since fmt_ident() will die() on bad value */
+ if (parse_date(val[2], &out)){
+ warning(_("invalid date format '%s' in '%s'"),
+ val[2], rebase_path_author_script());
+ strbuf_release(&out);
+ return NULL;
+ }
+
+ strbuf_reset(&out);
+ strbuf_addstr(&out, fmt_ident(val[0], val[1], val[2], 0));
+ strbuf_swap(buf, &out);
+ strbuf_release(&out);
return buf->buf;
}
@@ -1101,7 +1110,7 @@ void print_commit_summary(const char *prefix, const struct object_id *oid,
struct strbuf author_ident = STRBUF_INIT;
struct strbuf committer_ident = STRBUF_INIT;
- commit = lookup_commit(oid);
+ commit = lookup_commit(the_repository, oid);
if (!commit)
die(_("couldn't look up newly created commit"));
if (parse_commit(commit))
@@ -1176,7 +1185,7 @@ static int parse_head(struct commit **head)
if (get_oid("HEAD", &oid)) {
current_head = NULL;
} else {
- current_head = lookup_commit_reference(&oid);
+ current_head = lookup_commit_reference(the_repository, &oid);
if (!current_head)
return error(_("could not parse HEAD"));
if (oidcmp(&oid, &current_head->object.oid)) {
@@ -1244,7 +1253,7 @@ static int try_to_commit(struct strbuf *msg, const char *author,
commit_list_insert(current_head, &parents);
}
- if (write_cache_as_tree(&tree, 0, NULL)) {
+ if (write_index_as_tree(&tree, &the_index, get_index_file(), 0, NULL)) {
res = error(_("git write-tree failed to write a tree"));
goto out;
}
@@ -1445,7 +1454,7 @@ static const char *command_to_string(const enum todo_command command)
{
if (command < TODO_COMMENT)
return todo_command_info[command].str;
- die("Unknown command: %d", command);
+ die(_("unknown command: %d"), command);
}
static char command_to_char(const enum todo_command command)
@@ -1511,7 +1520,7 @@ static int update_squash_messages(enum todo_command command,
if (get_oid("HEAD", &head))
return error(_("need a HEAD to fixup"));
- if (!(head_commit = lookup_commit_reference(&head)))
+ if (!(head_commit = lookup_commit_reference(the_repository, &head)))
return error(_("could not read HEAD"));
if (!(head_message = get_commit_buffer(head_commit, NULL)))
return error(_("could not read HEAD's commit message"));
@@ -1543,13 +1552,13 @@ static int update_squash_messages(enum todo_command command,
unlink(rebase_path_fixup_msg());
strbuf_addf(&buf, "\n%c ", comment_line_char);
strbuf_addf(&buf, _("This is the commit message #%d:"),
- ++opts->current_fixup_count);
+ ++opts->current_fixup_count + 1);
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:"),
- ++opts->current_fixup_count);
+ ++opts->current_fixup_count + 1);
strbuf_addstr(&buf, "\n\n");
strbuf_add_commented_lines(&buf, body, strlen(body));
} else
@@ -1630,7 +1639,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
* that represents the "current" state for merge-recursive
* to work on.
*/
- if (write_cache_as_tree(&head, 0, NULL))
+ if (write_index_as_tree(&head, &the_index, get_index_file(), 0, NULL))
return error(_("your index file is unmerged."));
} else {
unborn = get_oid("HEAD", &head);
@@ -2007,7 +2016,7 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol)
if (status < 0)
return -1;
- item->commit = lookup_commit_reference(&commit_oid);
+ item->commit = lookup_commit_reference(the_repository, &commit_oid);
return !item->commit;
}
@@ -2601,23 +2610,39 @@ static int error_with_patch(struct commit *commit,
const char *subject, int subject_len,
struct replay_opts *opts, int exit_code, int to_amend)
{
- if (make_patch(commit, opts))
- return -1;
+ if (commit) {
+ if (make_patch(commit, opts))
+ return -1;
+ } else if (copy_file(rebase_path_message(),
+ git_path_merge_msg(the_repository), 0666))
+ return error(_("unable to copy '%s' to '%s'"),
+ git_path_merge_msg(the_repository), rebase_path_message());
if (to_amend) {
if (intend_to_amend())
return -1;
- fprintf(stderr, "You can amend the commit now, with\n"
- "\n"
- " git commit --amend %s\n"
- "\n"
- "Once you are satisfied with your changes, run\n"
- "\n"
- " git rebase --continue\n", gpg_sign_opt_quoted(opts));
- } else if (exit_code)
- fprintf(stderr, "Could not apply %s... %.*s\n",
- short_commit_name(commit), subject_len, subject);
+ fprintf(stderr,
+ _("You can amend the commit now, with\n"
+ "\n"
+ " git commit --amend %s\n"
+ "\n"
+ "Once you are satisfied with your changes, run\n"
+ "\n"
+ " git rebase --continue\n"),
+ gpg_sign_opt_quoted(opts));
+ } else if (exit_code) {
+ if (commit)
+ fprintf_ln(stderr, _("Could not apply %s... %.*s"),
+ short_commit_name(commit), subject_len, subject);
+ else
+ /*
+ * We don't have the hash of the parent so
+ * just print the line from the todo file.
+ */
+ fprintf_ln(stderr, _("Could not merge %.*s"),
+ subject_len, subject);
+ }
return exit_code;
}
@@ -2645,6 +2670,8 @@ static int do_exec(const char *command_line)
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()));
status = run_command_v_opt_cd_env(child_argv, RUN_USING_SHELL, NULL,
child_env.argv);
@@ -2728,7 +2755,7 @@ static int do_label(const char *name, int len)
struct object_id head_oid;
if (len == 1 && *name == '#')
- return error("Illegal label name: '%.*s'", len, name);
+ return error(_("illegal label name: '%.*s'"), len, name);
strbuf_addf(&ref_name, "refs/rewritten/%.*s", len, name);
strbuf_addf(&msg, "rebase -i (label) '%.*s'", len, name);
@@ -2850,6 +2877,26 @@ static int do_reset(const char *name, int len, struct replay_opts *opts)
return ret;
}
+static struct commit *lookup_label(const char *label, int len,
+ struct strbuf *buf)
+{
+ struct commit *commit;
+
+ strbuf_reset(buf);
+ strbuf_addf(buf, "refs/rewritten/%.*s", len, label);
+ commit = lookup_commit_reference_by_name(buf->buf);
+ if (!commit) {
+ /* fall back to non-rewritten ref or commit */
+ strbuf_splice(buf, 0, strlen("refs/rewritten/"), "", 0);
+ commit = lookup_commit_reference_by_name(buf->buf);
+ }
+
+ if (!commit)
+ error(_("could not resolve '%s'"), buf->buf);
+
+ return commit;
+}
+
static int do_merge(struct commit *commit, const char *arg, int arg_len,
int flags, struct replay_opts *opts)
{
@@ -2858,8 +2905,9 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
struct strbuf ref_name = STRBUF_INIT;
struct commit *head_commit, *merge_commit, *i;
struct commit_list *bases, *j, *reversed = NULL;
+ struct commit_list *to_merge = NULL, **tail = &to_merge;
struct merge_options o;
- int merge_arg_len, oneline_offset, can_fast_forward, ret;
+ int merge_arg_len, oneline_offset, can_fast_forward, ret, k;
static struct lock_file lock;
const char *p;
@@ -2874,26 +2922,34 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
goto leave_merge;
}
- oneline_offset = arg_len;
- merge_arg_len = strcspn(arg, " \t\n");
- p = arg + merge_arg_len;
- p += strspn(p, " \t\n");
- if (*p == '#' && (!p[1] || isspace(p[1]))) {
- p += 1 + strspn(p + 1, " \t\n");
- oneline_offset = p - arg;
- } else if (p - arg < arg_len)
- BUG("octopus merges are not supported yet: '%s'", p);
-
- strbuf_addf(&ref_name, "refs/rewritten/%.*s", merge_arg_len, arg);
- merge_commit = lookup_commit_reference_by_name(ref_name.buf);
- if (!merge_commit) {
- /* fall back to non-rewritten ref or commit */
- strbuf_splice(&ref_name, 0, strlen("refs/rewritten/"), "", 0);
- merge_commit = lookup_commit_reference_by_name(ref_name.buf);
+ /*
+ * For octopus merges, the arg starts with the list of revisions to be
+ * merged. The list is optionally followed by '#' and the oneline.
+ */
+ merge_arg_len = oneline_offset = arg_len;
+ for (p = arg; p - arg < arg_len; p += strspn(p, " \t\n")) {
+ if (!*p)
+ break;
+ if (*p == '#' && (!p[1] || isspace(p[1]))) {
+ p += 1 + strspn(p + 1, " \t\n");
+ oneline_offset = p - arg;
+ break;
+ }
+ k = strcspn(p, " \t\n");
+ if (!k)
+ continue;
+ merge_commit = lookup_label(p, k, &ref_name);
+ if (!merge_commit) {
+ ret = error(_("unable to parse '%.*s'"), k, p);
+ goto leave_merge;
+ }
+ tail = &commit_list_insert(merge_commit, tail)->next;
+ p += k;
+ merge_arg_len = p - arg;
}
- if (!merge_commit) {
- ret = error(_("could not resolve '%s'"), ref_name.buf);
+ if (!to_merge) {
+ ret = error(_("nothing to merge: '%.*s'"), arg_len, arg);
goto leave_merge;
}
@@ -2904,8 +2960,13 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
* "[new root]", let's simply fast-forward to the merge head.
*/
rollback_lock_file(&lock);
- ret = fast_forward_to(&merge_commit->object.oid,
- &head_commit->object.oid, 0, opts);
+ if (to_merge->next)
+ ret = error(_("octopus merge cannot be executed on "
+ "top of a [new root]"));
+ else
+ ret = fast_forward_to(&to_merge->item->object.oid,
+ &head_commit->object.oid, 0,
+ opts);
goto leave_merge;
}
@@ -2941,7 +3002,8 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
p = arg + oneline_offset;
len = arg_len - oneline_offset;
} else {
- strbuf_addf(&buf, "Merge branch '%.*s'",
+ strbuf_addf(&buf, "Merge %s '%.*s'",
+ to_merge->next ? "branches" : "branch",
merge_arg_len, arg);
p = buf.buf;
len = buf.len;
@@ -2965,28 +3027,76 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
&head_commit->object.oid);
/*
- * If the merge head is different from the original one, we cannot
+ * If any merge head is different from the original one, we cannot
* fast-forward.
*/
if (can_fast_forward) {
- struct commit_list *second_parent = commit->parents->next;
+ struct commit_list *p = commit->parents->next;
- if (second_parent && !second_parent->next &&
- oidcmp(&merge_commit->object.oid,
- &second_parent->item->object.oid))
+ for (j = to_merge; j && p; j = j->next, p = p->next)
+ if (oidcmp(&j->item->object.oid,
+ &p->item->object.oid)) {
+ can_fast_forward = 0;
+ break;
+ }
+ /*
+ * If the number of merge heads differs from the original merge
+ * commit, we cannot fast-forward.
+ */
+ if (j || p)
can_fast_forward = 0;
}
- if (can_fast_forward && commit->parents->next &&
- !commit->parents->next->next &&
- !oidcmp(&commit->parents->next->item->object.oid,
- &merge_commit->object.oid)) {
+ if (can_fast_forward) {
rollback_lock_file(&lock);
ret = fast_forward_to(&commit->object.oid,
&head_commit->object.oid, 0, opts);
goto leave_merge;
}
+ if (to_merge->next) {
+ /* Octopus merge */
+ struct child_process cmd = CHILD_PROCESS_INIT;
+
+ if (read_env_script(&cmd.env_array)) {
+ const char *gpg_opt = gpg_sign_opt_quoted(opts);
+
+ ret = error(_(staged_changes_advice), gpg_opt, gpg_opt);
+ goto leave_merge;
+ }
+
+ cmd.git_cmd = 1;
+ argv_array_push(&cmd.args, "merge");
+ argv_array_push(&cmd.args, "-s");
+ argv_array_push(&cmd.args, "octopus");
+ 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(the_repository));
+ if (opts->gpg_sign)
+ argv_array_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));
+
+ strbuf_release(&ref_name);
+ unlink(git_path_cherry_pick_head(the_repository));
+ rollback_lock_file(&lock);
+
+ rollback_lock_file(&lock);
+ ret = run_command(&cmd);
+
+ /* force re-reading of the cache */
+ if (!ret && (discard_cache() < 0 || read_cache() < 0))
+ ret = error(_("could not read index"));
+ goto leave_merge;
+ }
+
+ merge_commit = to_merge->item;
write_message(oid_to_hex(&merge_commit->object.oid), GIT_SHA1_HEXSZ,
git_path_merge_head(the_repository), 0);
write_message("no-ff", 5, git_path_merge_mode(the_repository), 0);
@@ -3049,6 +3159,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
leave_merge:
strbuf_release(&ref_name);
rollback_lock_file(&lock);
+ free_commit_list(to_merge);
return ret;
}
@@ -3634,7 +3745,7 @@ int sequencer_pick_revisions(struct replay_opts *opts)
continue;
if (!get_oid(name, &oid)) {
- if (!lookup_commit_reference_gently(&oid, 1)) {
+ if (!lookup_commit_reference_gently(the_repository, &oid, 1)) {
enum object_type type = oid_object_info(the_repository,
&oid,
NULL);
@@ -3905,7 +4016,6 @@ static int make_script_with_merges(struct pretty_print_context *pp,
*/
while ((commit = get_revision(revs))) {
struct commit_list *to_merge;
- int is_octopus;
const char *p1, *p2;
struct object_id *oid;
int is_empty;
@@ -3937,11 +4047,6 @@ static int make_script_with_merges(struct pretty_print_context *pp,
continue;
}
- is_octopus = to_merge && to_merge->next;
-
- if (is_octopus)
- BUG("Octopus merges not yet supported");
-
/* Create a label */
strbuf_reset(&label);
if (skip_prefix(oneline.buf, "Merge ", &p1) &&
@@ -3963,13 +4068,17 @@ static int make_script_with_merges(struct pretty_print_context *pp,
strbuf_addf(&buf, "%s -C %s",
cmd_merge, oid_to_hex(&commit->object.oid));
- /* label the tip of merged branch */
- oid = &to_merge->item->object.oid;
- strbuf_addch(&buf, ' ');
+ /* label the tips of merged branches */
+ for (; to_merge; to_merge = to_merge->next) {
+ oid = &to_merge->item->object.oid;
+ strbuf_addch(&buf, ' ');
+
+ if (!oidset_contains(&interesting, oid)) {
+ strbuf_addstr(&buf, label_oid(oid, NULL,
+ &state));
+ continue;
+ }
- if (!oidset_contains(&interesting, oid))
- strbuf_addstr(&buf, label_oid(oid, NULL, &state));
- else {
tips_tail = &commit_list_insert(to_merge->item,
tips_tail)->next;
@@ -4160,10 +4269,9 @@ int sequencer_add_exec_commands(const char *commands)
{
const char *todo_file = rebase_path_todo();
struct todo_list todo_list = TODO_LIST_INIT;
- struct todo_item *item;
struct strbuf *buf = &todo_list.buf;
size_t offset = 0, commands_len = strlen(commands);
- int i, first;
+ int i, insert;
if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
return error(_("could not read '%s'."), todo_file);
@@ -4173,19 +4281,40 @@ int sequencer_add_exec_commands(const char *commands)
return error(_("unusable todo list: '%s'"), todo_file);
}
- first = 1;
- /* insert <commands> before every pick except the first one */
- for (item = todo_list.items, i = 0; i < todo_list.nr; i++, item++) {
- if (item->command == TODO_PICK && !first) {
- strbuf_insert(buf, item->offset_in_buf + offset,
- commands, commands_len);
+ /*
+ * Insert <commands> after every pick. Here, fixup/squash chains
+ * are considered part of the pick, so we insert the commands *after*
+ * those chains if there are any.
+ */
+ insert = -1;
+ for (i = 0; i < todo_list.nr; i++) {
+ enum todo_command command = todo_list.items[i].command;
+
+ if (insert >= 0) {
+ /* skip fixup/squash chains */
+ if (command == TODO_COMMENT)
+ continue;
+ else if (is_fixup(command)) {
+ insert = i + 1;
+ continue;
+ }
+ strbuf_insert(buf,
+ todo_list.items[insert].offset_in_buf +
+ offset, commands, commands_len);
offset += commands_len;
+ insert = -1;
}
- first = 0;
+
+ if (command == TODO_PICK || command == TODO_MERGE)
+ insert = i + 1;
}
- /* append final <commands> */
- strbuf_add(buf, commands, commands_len);
+ /* insert or append final <commands> */
+ if (insert >= 0 && insert < todo_list.nr)
+ strbuf_insert(buf, todo_list.items[insert].offset_in_buf +
+ offset, commands, commands_len);
+ else if (insert >= 0 || !offset)
+ strbuf_add(buf, commands, commands_len);
i = write_message(buf->buf, buf->len, todo_file, 0);
todo_list_release(&todo_list);