*
* Fetch one or more remote refs and merge it/them into the current HEAD.
*/
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
#include "cache.h"
+#include "config.h"
#include "builtin.h"
#include "parse-options.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
#include "run-command.h"
#include "sha1-array.h"
#include "remote.h"
#include "dir.h"
#include "refs.h"
+#include "refspec.h"
#include "revision.h"
+#include "submodule.h"
+#include "submodule-config.h"
#include "tempfile.h"
#include "lockfile.h"
+#include "wt-status.h"
+#include "commit-reach.h"
+#include "sequencer.h"
enum rebase_type {
REBASE_INVALID = -1,
REBASE_FALSE = 0,
REBASE_TRUE,
REBASE_PRESERVE,
+ REBASE_MERGES,
REBASE_INTERACTIVE
};
/**
* Parses the value of --rebase. If value is a false value, returns
* REBASE_FALSE. If value is a true value, returns REBASE_TRUE. If value is
- * "preserve", returns REBASE_PRESERVE. If value is a invalid value, dies with
- * a fatal error if fatal is true, otherwise returns REBASE_INVALID.
+ * "merges", returns REBASE_MERGES. If value is "preserve", returns
+ * REBASE_PRESERVE. If value is a invalid value, dies with a fatal error if
+ * fatal is true, otherwise returns REBASE_INVALID.
*/
static enum rebase_type parse_config_rebase(const char *key, const char *value,
int fatal)
{
- int v = git_config_maybe_bool("pull.rebase", value);
+ int v = git_parse_maybe_bool(value);
if (!v)
return REBASE_FALSE;
else if (v > 0)
return REBASE_TRUE;
- else if (!strcmp(value, "preserve"))
+ else if (!strcmp(value, "preserve") || !strcmp(value, "p"))
return REBASE_PRESERVE;
- else if (!strcmp(value, "interactive"))
+ else if (!strcmp(value, "merges") || !strcmp(value, "m"))
+ return REBASE_MERGES;
+ else if (!strcmp(value, "interactive") || !strcmp(value, "i"))
return REBASE_INTERACTIVE;
+ /*
+ * Please update _git_config() in git-completion.bash when you
+ * add new rebase modes.
+ */
if (fatal)
die(_("Invalid value for %s: %s"), key, value);
/* Shared options */
static int opt_verbosity;
static char *opt_progress;
+static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
/* Options passed to git-merge or git-rebase */
static enum rebase_type opt_rebase = -1;
static char *opt_diffstat;
static char *opt_log;
+static char *opt_signoff;
static char *opt_squash;
static char *opt_commit;
static char *opt_edit;
+static char *cleanup_arg;
static char *opt_ff;
static char *opt_verify_signatures;
static int opt_autostash = -1;
static int opt_force;
static char *opt_tags;
static char *opt_prune;
-static char *opt_recurse_submodules;
static char *max_children;
static int opt_dry_run;
static char *opt_keep;
static char *opt_unshallow;
static char *opt_update_shallow;
static char *opt_refmap;
+static char *opt_ipv4;
+static char *opt_ipv6;
+static int opt_show_forced_updates = -1;
static struct option pull_options[] = {
/* Shared options */
OPT_PASSTHRU(0, "progress", &opt_progress, NULL,
N_("force progress reporting"),
PARSE_OPT_NOARG),
+ { OPTION_CALLBACK, 0, "recurse-submodules",
+ &recurse_submodules, N_("on-demand"),
+ N_("control for recursive fetching of submodules"),
+ PARSE_OPT_OPTARG, option_fetch_parse_recurse_submodules },
/* Options passed to git-merge or git-rebase */
OPT_GROUP(N_("Options related to merging")),
{ OPTION_CALLBACK, 'r', "rebase", &opt_rebase,
- "false|true|preserve|interactive",
+ "(false|true|merges|preserve|interactive)",
N_("incorporate changes by rebasing rather than merging"),
PARSE_OPT_OPTARG, parse_opt_rebase },
OPT_PASSTHRU('n', NULL, &opt_diffstat, NULL,
OPT_PASSTHRU(0, "log", &opt_log, N_("n"),
N_("add (at most <n>) entries from shortlog to merge commit message"),
PARSE_OPT_OPTARG),
+ OPT_PASSTHRU(0, "signoff", &opt_signoff, NULL,
+ N_("add Signed-off-by:"),
+ PARSE_OPT_OPTARG),
OPT_PASSTHRU(0, "squash", &opt_squash, NULL,
N_("create a single commit instead of doing a merge"),
PARSE_OPT_NOARG),
OPT_PASSTHRU(0, "edit", &opt_edit, NULL,
N_("edit message before committing"),
PARSE_OPT_NOARG),
+ OPT_CLEANUP(&cleanup_arg),
OPT_PASSTHRU(0, "ff", &opt_ff, NULL,
N_("allow fast-forward"),
PARSE_OPT_NOARG),
OPT_PASSTHRU(0, "upload-pack", &opt_upload_pack, N_("path"),
N_("path to upload pack on remote end"),
0),
- OPT__FORCE(&opt_force, N_("force overwrite of local branch")),
+ OPT__FORCE(&opt_force, N_("force overwrite of local branch"), 0),
OPT_PASSTHRU('t', "tags", &opt_tags, NULL,
N_("fetch all tags and associated objects"),
PARSE_OPT_NOARG),
OPT_PASSTHRU('p', "prune", &opt_prune, NULL,
N_("prune remote-tracking branches no longer on remote"),
PARSE_OPT_NOARG),
- OPT_PASSTHRU(0, "recurse-submodules", &opt_recurse_submodules,
- N_("on-demand"),
- N_("control recursive fetching of submodules"),
- PARSE_OPT_OPTARG),
OPT_PASSTHRU('j', "jobs", &max_children, N_("n"),
N_("number of submodules pulled in parallel"),
PARSE_OPT_OPTARG),
OPT_PASSTHRU(0, "refmap", &opt_refmap, N_("refmap"),
N_("specify fetch refmap"),
PARSE_OPT_NONEG),
+ OPT_PASSTHRU('4', "ipv4", &opt_ipv4, NULL,
+ N_("use IPv4 addresses only"),
+ PARSE_OPT_NOARG),
+ OPT_PASSTHRU('6', "ipv6", &opt_ipv6, NULL,
+ N_("use IPv6 addresses only"),
+ PARSE_OPT_NOARG),
+ OPT_BOOL(0, "show-forced-updates", &opt_show_forced_updates,
+ N_("check for forced-updates on all updated branches")),
OPT_END()
};
if (git_config_get_value("pull.ff", &value))
return NULL;
- switch (git_config_maybe_bool("pull.ff", value)) {
+ switch (git_parse_maybe_bool(value)) {
case 0:
return "--no-ff";
case 1:
if (!strcmp(var, "rebase.autostash")) {
config_autostash = git_config_bool(var, value);
return 0;
- }
- return git_default_config(var, value, cb);
-}
-
-/**
- * Returns 1 if there are unstaged changes, 0 otherwise.
- */
-static int has_unstaged_changes(const char *prefix)
-{
- struct rev_info rev_info;
- int result;
-
- init_revisions(&rev_info, prefix);
- DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
- DIFF_OPT_SET(&rev_info.diffopt, QUICK);
- diff_setup_done(&rev_info.diffopt);
- result = run_diff_files(&rev_info, 0);
- return diff_result_code(&rev_info.diffopt, result);
-}
-
-/**
- * Returns 1 if there are uncommitted changes, 0 otherwise.
- */
-static int has_uncommitted_changes(const char *prefix)
-{
- struct rev_info rev_info;
- int result;
-
- if (is_cache_unborn())
+ } else if (!strcmp(var, "submodule.recurse")) {
+ recurse_submodules = git_config_bool(var, value) ?
+ RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF;
return 0;
-
- init_revisions(&rev_info, prefix);
- DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
- DIFF_OPT_SET(&rev_info.diffopt, QUICK);
- add_head_to_pending(&rev_info);
- diff_setup_done(&rev_info.diffopt);
- result = run_diff_index(&rev_info, 1);
- return diff_result_code(&rev_info.diffopt, result);
-}
-
-/**
- * If the work tree has unstaged or uncommitted changes, dies with the
- * appropriate message.
- */
-static void die_on_unclean_work_tree(const char *prefix)
-{
- struct lock_file *lock_file = xcalloc(1, sizeof(*lock_file));
- int do_die = 0;
-
- hold_locked_index(lock_file, 0);
- refresh_cache(REFRESH_QUIET);
- update_index_if_able(&the_index, lock_file);
- rollback_lock_file(lock_file);
-
- if (has_unstaged_changes(prefix)) {
- error(_("Cannot pull with rebase: You have unstaged changes."));
- do_die = 1;
- }
-
- if (has_uncommitted_changes(prefix)) {
- if (do_die)
- error(_("Additionally, your index contains uncommitted changes."));
- else
- error(_("Cannot pull with rebase: Your index contains uncommitted changes."));
- do_die = 1;
}
-
- if (do_die)
- exit(1);
+ return git_default_config(var, value, cb);
}
/**
* Appends merge candidates from FETCH_HEAD that are not marked not-for-merge
* into merge_heads.
*/
-static void get_merge_heads(struct sha1_array *merge_heads)
+static void get_merge_heads(struct oid_array *merge_heads)
{
- const char *filename = git_path("FETCH_HEAD");
+ const char *filename = git_path_fetch_head(the_repository);
FILE *fp;
struct strbuf sb = STRBUF_INIT;
- unsigned char sha1[GIT_SHA1_RAWSZ];
+ struct object_id oid;
- if (!(fp = fopen(filename, "r")))
- die_errno(_("could not open '%s' for reading"), filename);
+ fp = xfopen(filename, "r");
while (strbuf_getline_lf(&sb, fp) != EOF) {
- if (get_sha1_hex(sb.buf, sha1))
- continue; /* invalid line: does not start with SHA1 */
- if (starts_with(sb.buf + GIT_SHA1_HEXSZ, "\tnot-for-merge\t"))
+ const char *p;
+ if (parse_oid_hex(sb.buf, &oid, &p))
+ continue; /* invalid line: does not start with object ID */
+ if (starts_with(p, "\tnot-for-merge\t"))
continue; /* ref is not-for-merge */
- sha1_array_append(merge_heads, sha1);
+ oid_array_append(merge_heads, &oid);
}
fclose(fp);
strbuf_release(&sb);
argv_array_push(&args, opt_tags);
if (opt_prune)
argv_array_push(&args, opt_prune);
- if (opt_recurse_submodules)
- argv_array_push(&args, opt_recurse_submodules);
+ if (recurse_submodules != RECURSE_SUBMODULES_DEFAULT)
+ switch (recurse_submodules) {
+ case RECURSE_SUBMODULES_ON:
+ argv_array_push(&args, "--recurse-submodules=on");
+ break;
+ case RECURSE_SUBMODULES_OFF:
+ argv_array_push(&args, "--recurse-submodules=no");
+ break;
+ case RECURSE_SUBMODULES_ON_DEMAND:
+ argv_array_push(&args, "--recurse-submodules=on-demand");
+ break;
+ default:
+ BUG("submodule recursion option not understood");
+ }
if (max_children)
argv_array_push(&args, max_children);
if (opt_dry_run)
argv_array_push(&args, opt_update_shallow);
if (opt_refmap)
argv_array_push(&args, opt_refmap);
+ if (opt_ipv4)
+ argv_array_push(&args, opt_ipv4);
+ if (opt_ipv6)
+ argv_array_push(&args, opt_ipv6);
+ if (opt_show_forced_updates > 0)
+ argv_array_push(&args, "--show-forced-updates");
+ else if (opt_show_forced_updates == 0)
+ argv_array_push(&args, "--no-show-forced-updates");
if (repo) {
argv_array_push(&args, repo);
argv_array_pushv(&args, refspecs);
} else if (*refspecs)
- die("BUG: refspecs without repo?");
+ BUG("refspecs without repo?");
ret = run_command_v_opt(args.argv, RUN_GIT_CMD);
argv_array_clear(&args);
return ret;
/**
* "Pulls into void" by branching off merge_head.
*/
-static int pull_into_void(const unsigned char *merge_head,
- const unsigned char *curr_head)
+static int pull_into_void(const struct object_id *merge_head,
+ const struct object_id *curr_head)
{
+ if (opt_verify_signatures) {
+ struct commit *commit;
+
+ commit = lookup_commit(the_repository, merge_head);
+ if (!commit)
+ die(_("unable to access commit %s"),
+ oid_to_hex(merge_head));
+
+ verify_merge_signature(commit, opt_verbosity);
+ }
+
/*
* Two-way merge: we treat the index as based on an empty tree,
* and try to fast-forward to HEAD. This ensures we will not lose
* index/worktree changes that the user already made on the unborn
* branch.
*/
- if (checkout_fast_forward(EMPTY_TREE_SHA1_BIN, merge_head, 0))
+ if (checkout_fast_forward(the_repository,
+ the_hash_algo->empty_tree,
+ merge_head, 0))
return 1;
if (update_ref("initial pull", "HEAD", merge_head, curr_head, 0, UPDATE_REFS_DIE_ON_ERR))
return 0;
}
+static int rebase_submodules(void)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ argv_array_pushl(&cp.args, "submodule", "update",
+ "--recursive", "--rebase", NULL);
+ argv_push_verbosity(&cp.args);
+
+ return run_command(&cp);
+}
+
+static int update_submodules(void)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ argv_array_pushl(&cp.args, "submodule", "update",
+ "--recursive", "--checkout", NULL);
+ argv_push_verbosity(&cp.args);
+
+ return run_command(&cp);
+}
+
/**
* Runs git-merge, returning its exit status.
*/
argv_array_push(&args, opt_diffstat);
if (opt_log)
argv_array_push(&args, opt_log);
+ if (opt_signoff)
+ argv_array_push(&args, opt_signoff);
if (opt_squash)
argv_array_push(&args, opt_squash);
if (opt_commit)
argv_array_push(&args, opt_commit);
if (opt_edit)
argv_array_push(&args, opt_edit);
+ if (cleanup_arg)
+ argv_array_pushf(&args, "--cleanup=%s", cleanup_arg);
if (opt_ff)
argv_array_push(&args, opt_ff);
if (opt_verify_signatures)
}
/**
- * Derives the remote tracking branch from the remote and refspec.
+ * Derives the remote-tracking branch from the remote and refspec.
*
* FIXME: The current implementation assumes the default mapping of
* refs/heads/<branch_name> to refs/remotes/<remote_name>/<branch_name>.
*/
static const char *get_tracking_branch(const char *remote, const char *refspec)
{
- struct refspec *spec;
+ struct refspec_item spec;
const char *spec_src;
const char *merge_branch;
- spec = parse_fetch_refspec(1, &refspec);
- spec_src = spec->src;
+ refspec_item_init_or_die(&spec, refspec, REFSPEC_FETCH);
+ spec_src = spec.src;
if (!*spec_src || !strcmp(spec_src, "HEAD"))
spec_src = "HEAD";
else if (skip_prefix(spec_src, "heads/", &spec_src))
} else
merge_branch = NULL;
- free_refspec(1, spec);
+ refspec_item_clear(&spec);
return merge_branch;
}
/**
* Given the repo and refspecs, sets fork_point to the point at which the
- * current branch forked from its remote tracking branch. Returns 0 on success,
+ * current branch forked from its remote-tracking branch. Returns 0 on success,
* -1 on failure.
*/
-static int get_rebase_fork_point(unsigned char *fork_point, const char *repo,
+static int get_rebase_fork_point(struct object_id *fork_point, const char *repo,
const char *refspec)
{
int ret;
cp.no_stderr = 1;
cp.git_cmd = 1;
- ret = capture_command(&cp, &sb, GIT_SHA1_HEXSZ);
+ ret = capture_command(&cp, &sb, GIT_MAX_HEXSZ);
if (ret)
goto cleanup;
- ret = get_sha1_hex(sb.buf, fork_point);
+ ret = get_oid_hex(sb.buf, fork_point);
if (ret)
goto cleanup;
* Sets merge_base to the octopus merge base of curr_head, merge_head and
* fork_point. Returns 0 if a merge base is found, 1 otherwise.
*/
-static int get_octopus_merge_base(unsigned char *merge_base,
- const unsigned char *curr_head,
- const unsigned char *merge_head,
- const unsigned char *fork_point)
+static int get_octopus_merge_base(struct object_id *merge_base,
+ const struct object_id *curr_head,
+ const struct object_id *merge_head,
+ const struct object_id *fork_point)
{
struct commit_list *revs = NULL, *result;
- commit_list_insert(lookup_commit_reference(curr_head), &revs);
- commit_list_insert(lookup_commit_reference(merge_head), &revs);
- if (!is_null_sha1(fork_point))
- commit_list_insert(lookup_commit_reference(fork_point), &revs);
+ commit_list_insert(lookup_commit_reference(the_repository, curr_head),
+ &revs);
+ commit_list_insert(lookup_commit_reference(the_repository, merge_head),
+ &revs);
+ if (!is_null_oid(fork_point))
+ commit_list_insert(lookup_commit_reference(the_repository, fork_point),
+ &revs);
- result = reduce_heads(get_octopus_merge_bases(revs));
+ result = get_octopus_merge_bases(revs);
free_commit_list(revs);
+ reduce_heads_replace(&result);
+
if (!result)
return 1;
- hashcpy(merge_base, result->item->object.oid.hash);
+ oidcpy(merge_base, &result->item->object.oid);
+ free_commit_list(result);
return 0;
}
/**
- * Given the current HEAD SHA1, the merge head returned from git-fetch and the
+ * Given the current HEAD oid, the merge head returned from git-fetch and the
* fork point calculated by get_rebase_fork_point(), runs git-rebase with the
* appropriate arguments and returns its exit status.
*/
-static int run_rebase(const unsigned char *curr_head,
- const unsigned char *merge_head,
- const unsigned char *fork_point)
+static int run_rebase(const struct object_id *curr_head,
+ const struct object_id *merge_head,
+ const struct object_id *fork_point)
{
int ret;
- unsigned char oct_merge_base[GIT_SHA1_RAWSZ];
+ struct object_id oct_merge_base;
struct argv_array args = ARGV_ARRAY_INIT;
- if (!get_octopus_merge_base(oct_merge_base, curr_head, merge_head, fork_point))
- if (!is_null_sha1(fork_point) && !hashcmp(oct_merge_base, fork_point))
+ if (!get_octopus_merge_base(&oct_merge_base, curr_head, merge_head, fork_point))
+ if (!is_null_oid(fork_point) && oideq(&oct_merge_base, fork_point))
fork_point = NULL;
argv_array_push(&args, "rebase");
argv_push_verbosity(&args);
/* Options passed to git-rebase */
- if (opt_rebase == REBASE_PRESERVE)
+ if (opt_rebase == REBASE_MERGES)
+ argv_array_push(&args, "--rebase-merges");
+ else if (opt_rebase == REBASE_PRESERVE)
argv_array_push(&args, "--preserve-merges");
else if (opt_rebase == REBASE_INTERACTIVE)
argv_array_push(&args, "--interactive");
warning(_("ignoring --verify-signatures for rebase"));
argv_array_push(&args, "--onto");
- argv_array_push(&args, sha1_to_hex(merge_head));
+ argv_array_push(&args, oid_to_hex(merge_head));
- if (fork_point && !is_null_sha1(fork_point))
- argv_array_push(&args, sha1_to_hex(fork_point));
+ if (fork_point && !is_null_oid(fork_point))
+ argv_array_push(&args, oid_to_hex(fork_point));
else
- argv_array_push(&args, sha1_to_hex(merge_head));
+ argv_array_push(&args, oid_to_hex(merge_head));
ret = run_command_v_opt(args.argv, RUN_GIT_CMD);
argv_array_clear(&args);
int cmd_pull(int argc, const char **argv, const char *prefix)
{
const char *repo, **refspecs;
- struct sha1_array merge_heads = SHA1_ARRAY_INIT;
- unsigned char orig_head[GIT_SHA1_RAWSZ], curr_head[GIT_SHA1_RAWSZ];
- unsigned char rebase_fork_point[GIT_SHA1_RAWSZ];
+ struct oid_array merge_heads = OID_ARRAY_INIT;
+ struct object_id orig_head, curr_head;
+ struct object_id rebase_fork_point;
+ int autostash;
if (!getenv("GIT_REFLOG_ACTION"))
set_reflog_message(argc, argv);
+ git_config(git_pull_config, NULL);
+
argc = parse_options(argc, argv, prefix, pull_options, pull_usage, 0);
+ if (cleanup_arg)
+ /*
+ * this only checks the validity of cleanup_arg; we don't need
+ * a valid value for use_editor
+ */
+ get_cleanup_mode(cleanup_arg, 0);
+
parse_repo_refspecs(argc, argv, &repo, &refspecs);
if (!opt_ff)
if (opt_rebase < 0)
opt_rebase = config_get_rebase();
- git_config(git_pull_config, NULL);
-
if (read_cache_unmerged())
die_resolve_conflict("pull");
- if (file_exists(git_path("MERGE_HEAD")))
+ if (file_exists(git_path_merge_head(the_repository)))
die_conclude_merge();
- if (get_sha1("HEAD", orig_head))
- hashclr(orig_head);
+ if (get_oid("HEAD", &orig_head))
+ oidclr(&orig_head);
if (!opt_rebase && opt_autostash != -1)
die(_("--[no-]autostash option is only valid with --rebase."));
+ autostash = config_autostash;
if (opt_rebase) {
- int autostash = config_autostash;
if (opt_autostash != -1)
autostash = opt_autostash;
- if (is_null_sha1(orig_head) && !is_cache_unborn())
+ if (is_null_oid(&orig_head) && !is_cache_unborn())
die(_("Updating an unborn branch with changes added to the index."));
if (!autostash)
- die_on_unclean_work_tree(prefix);
+ require_clean_work_tree(the_repository,
+ N_("pull with rebase"),
+ _("please commit or stash them."), 1, 0);
- if (get_rebase_fork_point(rebase_fork_point, repo, *refspecs))
- hashclr(rebase_fork_point);
+ if (get_rebase_fork_point(&rebase_fork_point, repo, *refspecs))
+ oidclr(&rebase_fork_point);
}
if (run_fetch(repo, refspecs))
if (opt_dry_run)
return 0;
- if (get_sha1("HEAD", curr_head))
- hashclr(curr_head);
+ if (get_oid("HEAD", &curr_head))
+ oidclr(&curr_head);
- if (!is_null_sha1(orig_head) && !is_null_sha1(curr_head) &&
- hashcmp(orig_head, curr_head)) {
+ if (!is_null_oid(&orig_head) && !is_null_oid(&curr_head) &&
+ !oideq(&orig_head, &curr_head)) {
/*
* The fetch involved updating the current branch.
*
warning(_("fetch updated the current branch head.\n"
"fast-forwarding your working tree from\n"
- "commit %s."), sha1_to_hex(orig_head));
+ "commit %s."), oid_to_hex(&orig_head));
- if (checkout_fast_forward(orig_head, curr_head, 0))
+ if (checkout_fast_forward(the_repository, &orig_head,
+ &curr_head, 0))
die(_("Cannot fast-forward your working tree.\n"
"After making sure that you saved anything precious from\n"
"$ git diff %s\n"
"output, run\n"
"$ git reset --hard\n"
- "to recover."), sha1_to_hex(orig_head));
+ "to recover."), oid_to_hex(&orig_head));
}
get_merge_heads(&merge_heads);
if (!merge_heads.nr)
die_no_merge_candidates(repo, refspecs);
- if (is_null_sha1(orig_head)) {
+ if (is_null_oid(&orig_head)) {
if (merge_heads.nr > 1)
die(_("Cannot merge multiple branches into empty head."));
- return pull_into_void(*merge_heads.sha1, curr_head);
- } else if (opt_rebase) {
- if (merge_heads.nr > 1)
- die(_("Cannot rebase onto multiple branches."));
- return run_rebase(curr_head, *merge_heads.sha1, rebase_fork_point);
- } else
- return run_merge();
+ return pull_into_void(merge_heads.oid, &curr_head);
+ }
+ if (opt_rebase && merge_heads.nr > 1)
+ die(_("Cannot rebase onto multiple branches."));
+
+ if (opt_rebase) {
+ int ret = 0;
+ if ((recurse_submodules == RECURSE_SUBMODULES_ON ||
+ recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND) &&
+ submodule_touches_in_range(the_repository, &rebase_fork_point, &curr_head))
+ die(_("cannot rebase with locally recorded submodule modifications"));
+ if (!autostash) {
+ struct commit_list *list = NULL;
+ struct commit *merge_head, *head;
+
+ head = lookup_commit_reference(the_repository,
+ &orig_head);
+ commit_list_insert(head, &list);
+ merge_head = lookup_commit_reference(the_repository,
+ &merge_heads.oid[0]);
+ if (is_descendant_of(merge_head, list)) {
+ /* we can fast-forward this without invoking rebase */
+ opt_ff = "--ff-only";
+ ret = run_merge();
+ }
+ }
+ ret = run_rebase(&curr_head, merge_heads.oid, &rebase_fork_point);
+
+ if (!ret && (recurse_submodules == RECURSE_SUBMODULES_ON ||
+ recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND))
+ ret = rebase_submodules();
+
+ return ret;
+ } else {
+ int ret = run_merge();
+ if (!ret && (recurse_submodules == RECURSE_SUBMODULES_ON ||
+ recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND))
+ ret = update_submodules();
+ return ret;
+ }
}