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Diffstat (limited to 'builtin/rebase.c')
-rw-r--r--builtin/rebase.c290
1 files changed, 142 insertions, 148 deletions
diff --git a/builtin/rebase.c b/builtin/rebase.c
index 56e4214b44..5d855fd8f5 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -59,6 +59,26 @@ enum empty_type {
EMPTY_ASK
};
+enum action {
+ ACTION_NONE = 0,
+ ACTION_CONTINUE,
+ ACTION_SKIP,
+ ACTION_ABORT,
+ ACTION_QUIT,
+ ACTION_EDIT_TODO,
+ ACTION_SHOW_CURRENT_PATCH
+};
+
+static const char *action_names[] = {
+ "undefined",
+ "continue",
+ "skip",
+ "abort",
+ "quit",
+ "edit_todo",
+ "show_current_patch"
+};
+
struct rebase_options {
enum rebase_type type;
enum empty_type empty;
@@ -68,7 +88,7 @@ struct rebase_options {
const char *upstream_name;
const char *upstream_arg;
char *head_name;
- struct object_id orig_head;
+ struct commit *orig_head;
struct commit *onto;
const char *onto_name;
const char *revisions;
@@ -85,7 +105,7 @@ struct rebase_options {
REBASE_INTERACTIVE_EXPLICIT = 1<<4,
} flags;
struct strvec git_am_opts;
- const char *action;
+ enum action action;
int signoff;
int allow_rerere_autoupdate;
int keep_empty;
@@ -157,24 +177,6 @@ static struct replay_opts get_replay_opts(const struct rebase_options *opts)
return replay;
}
-enum action {
- ACTION_NONE = 0,
- ACTION_CONTINUE,
- ACTION_SKIP,
- ACTION_ABORT,
- ACTION_QUIT,
- ACTION_EDIT_TODO,
- ACTION_SHOW_CURRENT_PATCH
-};
-
-static const char *action_names[] = { "undefined",
- "continue",
- "skip",
- "abort",
- "quit",
- "edit_todo",
- "show_current_patch" };
-
static int edit_todo_file(unsigned flags)
{
const char *todo_file = rebase_path_todo();
@@ -261,13 +263,13 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags)
struct replay_opts replay = get_replay_opts(opts);
struct string_list commands = STRING_LIST_INIT_DUP;
- if (get_revision_ranges(opts->upstream, opts->onto, &opts->orig_head,
+ if (get_revision_ranges(opts->upstream, opts->onto, &opts->orig_head->object.oid,
&revisions, &shortrevisions))
return -1;
if (init_basic_state(&replay,
opts->head_name ? opts->head_name : "detached HEAD",
- opts->onto, &opts->orig_head)) {
+ opts->onto, &opts->orig_head->object.oid)) {
free(revisions);
free(shortrevisions);
@@ -298,9 +300,8 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags)
split_exec_commands(opts->cmd, &commands);
ret = complete_action(the_repository, &replay, flags,
shortrevisions, opts->onto_name, opts->onto,
- &opts->orig_head, &commands, opts->autosquash,
- opts->update_refs,
- &todo_list);
+ &opts->orig_head->object.oid, &commands,
+ opts->autosquash, opts->update_refs, &todo_list);
}
string_list_clear(&commands, 0);
@@ -312,8 +313,7 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags)
return ret;
}
-static int run_sequencer_rebase(struct rebase_options *opts,
- enum action command)
+static int run_sequencer_rebase(struct rebase_options *opts)
{
unsigned flags = 0;
int abbreviate_commands = 0, ret = 0;
@@ -328,7 +328,7 @@ static int run_sequencer_rebase(struct rebase_options *opts,
flags |= opts->reapply_cherry_picks ? TODO_LIST_REAPPLY_CHERRY_PICKS : 0;
flags |= opts->flags & REBASE_NO_QUIET ? TODO_LIST_WARN_SKIPPED_CHERRY_PICKS : 0;
- switch (command) {
+ switch (opts->action) {
case ACTION_NONE: {
if (!opts->onto && !opts->upstream)
die(_("a base commit must be provided with --upstream or --onto"));
@@ -361,7 +361,7 @@ static int run_sequencer_rebase(struct rebase_options *opts,
break;
}
default:
- BUG("invalid command '%d'", command);
+ BUG("invalid command '%d'", opts->action);
}
return ret;
@@ -431,9 +431,9 @@ static int read_basic_state(struct rebase_options *opts)
opts->head_name = starts_with(head_name.buf, "refs/") ?
xstrdup(head_name.buf) : NULL;
strbuf_release(&head_name);
- if (get_oid(buf.buf, &oid))
- return error(_("could not get 'onto': '%s'"), buf.buf);
- opts->onto = lookup_commit_or_die(&oid, buf.buf);
+ if (get_oid_hex(buf.buf, &oid) ||
+ !(opts->onto = lookup_commit_object(the_repository, &oid)))
+ return error(_("invalid onto: '%s'"), buf.buf);
/*
* We always write to orig-head, but interactive rebase used to write to
@@ -448,7 +448,8 @@ static int read_basic_state(struct rebase_options *opts)
} else if (!read_oneliner(&buf, state_dir_path("head", opts),
READ_ONELINER_WARN_MISSING))
return -1;
- if (get_oid(buf.buf, &opts->orig_head))
+ if (get_oid_hex(buf.buf, &oid) ||
+ !(opts->orig_head = lookup_commit_object(the_repository, &oid)))
return error(_("invalid orig-head: '%s'"), buf.buf);
if (file_exists(state_dir_path("quiet", opts)))
@@ -517,7 +518,7 @@ static int rebase_write_basic_state(struct rebase_options *opts)
write_file(state_dir_path("onto", opts), "%s",
opts->onto ? oid_to_hex(&opts->onto->object.oid) : "");
write_file(state_dir_path("orig-head", opts), "%s",
- oid_to_hex(&opts->orig_head));
+ oid_to_hex(&opts->orig_head->object.oid));
if (!(opts->flags & REBASE_NO_QUIET))
write_file(state_dir_path("quiet", opts), "%s", "");
if (opts->flags & REBASE_VERBOSE)
@@ -583,10 +584,11 @@ static int move_to_original_branch(struct rebase_options *opts)
if (!opts->onto)
BUG("move_to_original_branch without onto");
- strbuf_addf(&branch_reflog, "rebase finished: %s onto %s",
+ strbuf_addf(&branch_reflog, "%s (finish): %s onto %s",
+ getenv(GIT_REFLOG_ACTION_ENVIRONMENT),
opts->head_name, oid_to_hex(&opts->onto->object.oid));
- strbuf_addf(&head_reflog, "rebase finished: returning to %s",
- opts->head_name);
+ strbuf_addf(&head_reflog, "%s (finish): returning to %s",
+ getenv(GIT_REFLOG_ACTION_ENVIRONMENT), opts->head_name);
ropts.branch = opts->head_name;
ropts.flags = RESET_HEAD_REFS_ONLY;
ropts.branch_msg = branch_reflog.buf;
@@ -615,8 +617,9 @@ static int run_am(struct rebase_options *opts)
am.git_cmd = 1;
strvec_push(&am.args, "am");
-
- if (opts->action && !strcmp("continue", opts->action)) {
+ strvec_pushf(&am.env, GIT_REFLOG_ACTION_ENVIRONMENT "=%s (pick)",
+ getenv(GIT_REFLOG_ACTION_ENVIRONMENT));
+ if (opts->action == ACTION_CONTINUE) {
strvec_push(&am.args, "--resolved");
strvec_pushf(&am.args, "--resolvemsg=%s", resolvemsg);
if (opts->gpg_sign_opt)
@@ -627,7 +630,7 @@ static int run_am(struct rebase_options *opts)
return move_to_original_branch(opts);
}
- if (opts->action && !strcmp("skip", opts->action)) {
+ if (opts->action == ACTION_SKIP) {
strvec_push(&am.args, "--skip");
strvec_pushf(&am.args, "--resolvemsg=%s", resolvemsg);
status = run_command(&am);
@@ -636,7 +639,7 @@ static int run_am(struct rebase_options *opts)
return move_to_original_branch(opts);
}
- if (opts->action && !strcmp("show-current-patch", opts->action)) {
+ if (opts->action == ACTION_SHOW_CURRENT_PATCH) {
strvec_push(&am.args, "--show-current-patch");
return run_command(&am);
}
@@ -646,7 +649,7 @@ static int run_am(struct rebase_options *opts)
/* this is now equivalent to !opts->upstream */
&opts->onto->object.oid :
&opts->upstream->object.oid),
- oid_to_hex(&opts->orig_head));
+ oid_to_hex(&opts->orig_head->object.oid));
rebased_patches = xstrdup(git_path("rebased-patches"));
format_patch.out = open(rebased_patches,
@@ -680,7 +683,7 @@ static int run_am(struct rebase_options *opts)
free(rebased_patches);
strvec_clear(&am.args);
- ropts.oid = &opts->orig_head;
+ ropts.oid = &opts->orig_head->object.oid;
ropts.branch = opts->head_name;
ropts.default_reflog_action = DEFAULT_REFLOG_ACTION;
reset_head(the_repository, &ropts);
@@ -729,7 +732,7 @@ static int run_am(struct rebase_options *opts)
return status;
}
-static int run_specific_rebase(struct rebase_options *opts, enum action action)
+static int run_specific_rebase(struct rebase_options *opts)
{
int status;
@@ -747,7 +750,7 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
opts->gpg_sign_opt = tmp;
}
- status = run_sequencer_rebase(opts, action);
+ status = run_sequencer_rebase(opts);
} else if (opts->type == REBASE_APPLY)
status = run_am(opts);
else
@@ -833,7 +836,7 @@ static int checkout_up_to_date(struct rebase_options *options)
strbuf_addf(&buf, "%s: checkout %s",
getenv(GIT_REFLOG_ACTION_ENVIRONMENT),
options->switch_to);
- ropts.oid = &options->orig_head;
+ ropts.oid = &options->orig_head->object.oid;
ropts.branch = options->head_name;
ropts.flags = RESET_HEAD_RUN_POST_CHECKOUT_HOOK;
if (!ropts.branch)
@@ -866,32 +869,23 @@ static int is_linear_history(struct commit *from, struct commit *to)
static int can_fast_forward(struct commit *onto, struct commit *upstream,
struct commit *restrict_revision,
- struct object_id *head_oid, struct object_id *merge_base)
+ struct commit *head, struct object_id *branch_base)
{
- struct commit *head = lookup_commit(the_repository, head_oid);
struct commit_list *merge_bases = NULL;
int res = 0;
- if (!head)
- goto done;
+ if (is_null_oid(branch_base))
+ goto done; /* fill_branch_base() found multiple merge bases */
- merge_bases = get_merge_bases(onto, head);
- if (!merge_bases || merge_bases->next) {
- oidcpy(merge_base, null_oid());
+ if (!oideq(branch_base, &onto->object.oid))
goto done;
- }
- oidcpy(merge_base, &merge_bases->item->object.oid);
- if (!oideq(merge_base, &onto->object.oid))
- goto done;
-
- if (restrict_revision && !oideq(&restrict_revision->object.oid, merge_base))
+ if (restrict_revision && !oideq(&restrict_revision->object.oid, branch_base))
goto done;
if (!upstream)
goto done;
- free_commit_list(merge_bases);
merge_bases = get_merge_bases(upstream, head);
if (!merge_bases || merge_bases->next)
goto done;
@@ -906,6 +900,20 @@ done:
return res && is_linear_history(onto, head);
}
+static void fill_branch_base(struct rebase_options *options,
+ struct object_id *branch_base)
+{
+ struct commit_list *merge_bases = NULL;
+
+ merge_bases = get_merge_bases(options->onto, options->orig_head);
+ if (!merge_bases || merge_bases->next)
+ oidcpy(branch_base, null_oid());
+ else
+ oidcpy(branch_base, &merge_bases->item->object.oid);
+
+ free_commit_list(merge_bases);
+}
+
static int parse_opt_am(const struct option *opt, const char *arg, int unset)
{
struct rebase_options *opts = opt->value;
@@ -1000,23 +1008,6 @@ static void NORETURN error_on_missing_default_upstream(void)
exit(1);
}
-static void set_reflog_action(struct rebase_options *options)
-{
- const char *env;
- struct strbuf buf = STRBUF_INIT;
-
- if (!is_merge(options))
- return;
-
- env = getenv(GIT_REFLOG_ACTION_ENVIRONMENT);
- if (env && strcmp("rebase", env))
- return; /* only override it if it is "rebase" */
-
- strbuf_addf(&buf, "rebase (%s)", options->action);
- setenv(GIT_REFLOG_ACTION_ENVIRONMENT, buf.buf, 1);
- strbuf_release(&buf);
-}
-
static int check_exec_cmd(const char *cmd)
{
if (strchr(cmd, '\n'))
@@ -1039,9 +1030,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
struct strbuf msg = STRBUF_INIT;
struct strbuf revisions = STRBUF_INIT;
struct strbuf buf = STRBUF_INIT;
- struct object_id merge_base;
+ struct object_id branch_base;
int ignore_whitespace = 0;
- enum action action = ACTION_NONE;
const char *gpg_sign = NULL;
struct string_list exec = STRING_LIST_INIT_NODUP;
const char *rebase_merges = NULL;
@@ -1090,18 +1080,18 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
OPT_BIT(0, "no-ff", &options.flags,
N_("cherry-pick all commits, even if unchanged"),
REBASE_FORCE),
- OPT_CMDMODE(0, "continue", &action, N_("continue"),
+ OPT_CMDMODE(0, "continue", &options.action, N_("continue"),
ACTION_CONTINUE),
- OPT_CMDMODE(0, "skip", &action,
+ OPT_CMDMODE(0, "skip", &options.action,
N_("skip current patch and continue"), ACTION_SKIP),
- OPT_CMDMODE(0, "abort", &action,
+ OPT_CMDMODE(0, "abort", &options.action,
N_("abort and check out the original branch"),
ACTION_ABORT),
- OPT_CMDMODE(0, "quit", &action,
+ OPT_CMDMODE(0, "quit", &options.action,
N_("abort but keep HEAD where it is"), ACTION_QUIT),
- OPT_CMDMODE(0, "edit-todo", &action, N_("edit the todo list "
+ OPT_CMDMODE(0, "edit-todo", &options.action, N_("edit the todo list "
"during an interactive rebase"), ACTION_EDIT_TODO),
- OPT_CMDMODE(0, "show-current-patch", &action,
+ OPT_CMDMODE(0, "show-current-patch", &options.action,
N_("show the patch file being applied or merged"),
ACTION_SHOW_CURRENT_PATCH),
OPT_CALLBACK_F(0, "apply", &options, NULL,
@@ -1175,6 +1165,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
prepare_repo_settings(the_repository);
the_repository->settings.command_requires_full_index = 0;
+ options.reapply_cherry_picks = -1;
options.allow_empty_message = 1;
git_config(rebase_config, &options);
/* options.gpg_sign_opt will be either "-S" or NULL */
@@ -1192,7 +1183,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
} else if (is_directory(merge_dir())) {
strbuf_reset(&buf);
strbuf_addf(&buf, "%s/rewritten", merge_dir());
- if (!(action == ACTION_ABORT) && is_directory(buf.buf)) {
+ if (!(options.action == ACTION_ABORT) && is_directory(buf.buf)) {
die(_("`rebase --preserve-merges` (-p) is no longer supported.\n"
"Use `git rebase --abort` to terminate current rebase.\n"
"Or downgrade to v2.33, or earlier, to complete the rebase."));
@@ -1219,7 +1210,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
"Note: Your `pull.rebase` configuration may also be set to 'preserve',\n"
"which is no longer supported; use 'merges' instead"));
- if (action != ACTION_NONE && total_argc != 2) {
+ if (options.action != ACTION_NONE && total_argc != 2) {
usage_with_options(builtin_rebase_usage,
builtin_rebase_options);
}
@@ -1233,16 +1224,28 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
die(_("options '%s' and '%s' cannot be used together"), "--keep-base", "--onto");
if (options.root)
die(_("options '%s' and '%s' cannot be used together"), "--keep-base", "--root");
+ /*
+ * --keep-base defaults to --no-fork-point to keep the
+ * base the same.
+ */
+ if (options.fork_point < 0)
+ options.fork_point = 0;
}
+ /*
+ * --keep-base defaults to --reapply-cherry-picks to avoid losing
+ * commits when using this option.
+ */
+ if (options.reapply_cherry_picks < 0)
+ options.reapply_cherry_picks = keep_base;
if (options.root && options.fork_point > 0)
die(_("options '%s' and '%s' cannot be used together"), "--root", "--fork-point");
- if (action != ACTION_NONE && !in_progress)
+ if (options.action != ACTION_NONE && !in_progress)
die(_("No rebase in progress?"));
setenv(GIT_REFLOG_ACTION_ENVIRONMENT, "rebase", 0);
- if (action == ACTION_EDIT_TODO && !is_merge(&options))
+ if (options.action == ACTION_EDIT_TODO && !is_merge(&options))
die(_("The --edit-todo action can only be used during "
"interactive rebase."));
@@ -1252,18 +1255,15 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
else if (exec.nr)
trace2_cmd_mode("interactive-exec");
else
- trace2_cmd_mode(action_names[action]);
+ trace2_cmd_mode(action_names[options.action]);
}
- switch (action) {
+ switch (options.action) {
case ACTION_CONTINUE: {
struct object_id head;
struct lock_file lock_file = LOCK_INIT;
int fd;
- options.action = "continue";
- set_reflog_action(&options);
-
/* Sanity check */
if (get_oid("HEAD", &head))
die(_("Cannot read HEAD"));
@@ -1289,9 +1289,6 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
case ACTION_SKIP: {
struct string_list merge_rr = STRING_LIST_INIT_DUP;
- options.action = "skip";
- set_reflog_action(&options);
-
rerere_clear(the_repository, &merge_rr);
string_list_clear(&merge_rr, 1);
ropts.flags = RESET_HEAD_HARD;
@@ -1304,21 +1301,25 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
}
case ACTION_ABORT: {
struct string_list merge_rr = STRING_LIST_INIT_DUP;
- options.action = "abort";
- set_reflog_action(&options);
+ struct strbuf head_msg = STRBUF_INIT;
rerere_clear(the_repository, &merge_rr);
string_list_clear(&merge_rr, 1);
if (read_basic_state(&options))
exit(1);
- ropts.oid = &options.orig_head;
+
+ strbuf_addf(&head_msg, "%s (abort): returning to %s",
+ getenv(GIT_REFLOG_ACTION_ENVIRONMENT),
+ options.head_name ? options.head_name
+ : oid_to_hex(&options.orig_head->object.oid));
+ ropts.oid = &options.orig_head->object.oid;
+ ropts.head_msg = head_msg.buf;
ropts.branch = options.head_name;
ropts.flags = RESET_HEAD_HARD;
- ropts.default_reflog_action = DEFAULT_REFLOG_ACTION;
if (reset_head(the_repository, &ropts) < 0)
die(_("could not move back to %s"),
- oid_to_hex(&options.orig_head));
+ oid_to_hex(&options.orig_head->object.oid));
remove_branch_state(the_repository, 0);
ret = finish_rebase(&options);
goto cleanup;
@@ -1341,17 +1342,15 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
goto cleanup;
}
case ACTION_EDIT_TODO:
- options.action = "edit-todo";
options.dont_finish_rebase = 1;
goto run_rebase;
case ACTION_SHOW_CURRENT_PATCH:
- options.action = "show-current-patch";
options.dont_finish_rebase = 1;
goto run_rebase;
case ACTION_NONE:
break;
default:
- BUG("action: %d", action);
+ BUG("action: %d", options.action);
}
/* Make sure no rebase is in progress */
@@ -1375,7 +1374,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
}
if ((options.flags & REBASE_INTERACTIVE_EXPLICIT) ||
- (action != ACTION_NONE) ||
+ (options.action != ACTION_NONE) ||
(exec.nr > 0) ||
options.autosquash) {
allow_preemptive_ff = 0;
@@ -1410,7 +1409,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
if (options.empty != EMPTY_UNSPECIFIED)
imply_merge(&options, "--empty");
- if (options.reapply_cherry_picks)
+ /*
+ * --keep-base implements --reapply-cherry-picks by altering upstream so
+ * it works with both backends.
+ */
+ if (options.reapply_cherry_picks && !keep_base)
imply_merge(&options, "--reapply-cherry-picks");
if (gpg_sign)
@@ -1604,25 +1607,27 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
*/
if (argc == 1) {
/* Is it "rebase other branchname" or "rebase other commit"? */
+ struct object_id branch_oid;
branch_name = argv[0];
options.switch_to = argv[0];
/* Is it a local branch? */
strbuf_reset(&buf);
strbuf_addf(&buf, "refs/heads/%s", branch_name);
- if (!read_ref(buf.buf, &options.orig_head)) {
+ if (!read_ref(buf.buf, &branch_oid)) {
die_if_checked_out(buf.buf, 1);
options.head_name = xstrdup(buf.buf);
+ options.orig_head =
+ lookup_commit_object(the_repository,
+ &branch_oid);
/* If not is it a valid ref (branch or commit)? */
} else {
- struct commit *commit =
+ options.orig_head =
lookup_commit_reference_by_name(branch_name);
- if (!commit)
- die(_("no such branch/commit '%s'"),
- branch_name);
- oidcpy(&options.orig_head, &commit->object.oid);
options.head_name = NULL;
}
+ if (!options.orig_head)
+ die(_("no such branch/commit '%s'"), branch_name);
} else if (argc == 0) {
/* Do not need to switch branches, we are already on it. */
options.head_name =
@@ -1639,8 +1644,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
FREE_AND_NULL(options.head_name);
branch_name = "HEAD";
}
- if (get_oid("HEAD", &options.orig_head))
- die(_("Could not resolve HEAD to a revision"));
+ options.orig_head = lookup_commit_reference_by_name("HEAD");
+ if (!options.orig_head)
+ die(_("Could not resolve HEAD to a commit"));
} else
BUG("unexpected number of arguments left to parse");
@@ -1654,7 +1660,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
} else if (!options.onto_name)
options.onto_name = options.upstream_name;
if (strstr(options.onto_name, "...")) {
- if (get_oid_mb(options.onto_name, &merge_base) < 0) {
+ if (get_oid_mb(options.onto_name, &branch_base) < 0) {
if (keep_base)
die(_("'%s': need exactly one merge base with branch"),
options.upstream_name);
@@ -1662,7 +1668,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
die(_("'%s': need exactly one merge base"),
options.onto_name);
}
- options.onto = lookup_commit_or_die(&merge_base,
+ options.onto = lookup_commit_or_die(&branch_base,
options.onto_name);
} else {
options.onto =
@@ -1670,15 +1676,15 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
if (!options.onto)
die(_("Does not point to a valid commit '%s'"),
options.onto_name);
+ fill_branch_base(&options, &branch_base);
}
- if (options.fork_point > 0) {
- struct commit *head =
- lookup_commit_reference(the_repository,
- &options.orig_head);
+ if (keep_base && options.reapply_cherry_picks)
+ options.upstream = options.onto;
+
+ if (options.fork_point > 0)
options.restrict_revision =
- get_fork_point(options.upstream_name, head);
- }
+ get_fork_point(options.upstream_name, options.orig_head);
if (repo_read_index(the_repository) < 0)
die(_("could not read index"));
@@ -1703,13 +1709,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
* Check if we are already based on onto with linear history,
* in which case we could fast-forward without replacing the commits
* with new commits recreated by replaying their changes.
- *
- * Note that can_fast_forward() initializes merge_base, so we have to
- * call it before checking allow_preemptive_ff.
*/
- if (can_fast_forward(options.onto, options.upstream, options.restrict_revision,
- &options.orig_head, &merge_base) &&
- allow_preemptive_ff) {
+ if (allow_preemptive_ff &&
+ can_fast_forward(options.onto, options.upstream, options.restrict_revision,
+ options.orig_head, &branch_base)) {
int flag;
if (!(options.flags & REBASE_FORCE)) {
@@ -1750,12 +1753,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
struct diff_options opts;
if (options.flags & REBASE_VERBOSE) {
- if (is_null_oid(&merge_base))
+ if (is_null_oid(&branch_base))
printf(_("Changes to %s:\n"),
oid_to_hex(&options.onto->object.oid));
else
printf(_("Changes from %s to %s:\n"),
- oid_to_hex(&merge_base),
+ oid_to_hex(&branch_base),
oid_to_hex(&options.onto->object.oid));
}
@@ -1767,8 +1770,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
opts.detect_rename = DIFF_DETECT_RENAME;
diff_setup_done(&opts);
- diff_tree_oid(is_null_oid(&merge_base) ?
- the_hash_algo->empty_tree : &merge_base,
+ diff_tree_oid(is_null_oid(&branch_base) ?
+ the_hash_algo->empty_tree : &branch_base,
&options.onto->object.oid, "", &opts);
diffcore_std(&opts);
diff_flush(&opts);
@@ -1782,10 +1785,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
printf(_("First, rewinding head to replay your work on top of "
"it...\n"));
- strbuf_addf(&msg, "%s: checkout %s",
+ strbuf_addf(&msg, "%s (start): checkout %s",
getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name);
ropts.oid = &options.onto->object.oid;
- ropts.orig_head = &options.orig_head,
+ ropts.orig_head = &options.orig_head->object.oid,
ropts.flags = RESET_HEAD_DETACH | RESET_ORIG_HEAD |
RESET_HEAD_RUN_POST_CHECKOUT_HOOK;
ropts.head_msg = msg.buf;
@@ -1798,19 +1801,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
* If the onto is a proper descendant of the tip of the branch, then
* we just fast-forwarded.
*/
- strbuf_reset(&msg);
- if (oideq(&merge_base, &options.orig_head)) {
+ if (oideq(&branch_base, &options.orig_head->object.oid)) {
printf(_("Fast-forwarded %s to %s.\n"),
branch_name, options.onto_name);
- strbuf_addf(&msg, "rebase finished: %s onto %s",
- options.head_name ? options.head_name : "detached HEAD",
- oid_to_hex(&options.onto->object.oid));
- memset(&ropts, 0, sizeof(ropts));
- ropts.branch = options.head_name;
- ropts.flags = RESET_HEAD_REFS_ONLY;
- ropts.head_msg = msg.buf;
- reset_head(the_repository, &ropts);
- strbuf_release(&msg);
+ move_to_original_branch(&options);
ret = finish_rebase(&options);
goto cleanup;
}
@@ -1820,12 +1814,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
(options.restrict_revision ?
oid_to_hex(&options.restrict_revision->object.oid) :
oid_to_hex(&options.upstream->object.oid)),
- oid_to_hex(&options.orig_head));
+ oid_to_hex(&options.orig_head->object.oid));
options.revisions = revisions.buf;
run_rebase:
- ret = run_specific_rebase(&options, action);
+ ret = run_specific_rebase(&options);
cleanup:
strbuf_release(&buf);