#include "diff.h"
#include "wt-status.h"
#include "revision.h"
+#include "commit-reach.h"
+#include "rerere.h"
+#include "branch.h"
static char const * const builtin_rebase_usage[] = {
N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] "
{
struct child_process cp = CHILD_PROCESS_INIT;
struct strbuf out = STRBUF_INIT;
- int ret;
+ int ret, env = git_env_bool("GIT_TEST_REBASE_USE_BUILTIN", -1);
+
+ if (env != -1)
+ return env;
argv_array_pushl(&cp.args,
"config", "--bool", "rebase.usebuiltin", NULL);
cp.git_cmd = 1;
if (capture_command(&cp, &out, 6)) {
strbuf_release(&out);
- return 0;
+ return 1;
}
strbuf_trim(&out);
return ret;
}
-static int apply_autostash(void)
-{
- warning("TODO");
- return 0;
-}
-
struct rebase_options {
enum rebase_type type;
const char *state_dir;
struct commit *onto;
const char *onto_name;
const char *revisions;
+ const char *switch_to;
int root;
+ struct object_id *squash_onto;
struct commit *restrict_revision;
int dont_finish_rebase;
enum {
REBASE_NO_QUIET = 1<<0,
REBASE_VERBOSE = 1<<1,
REBASE_DIFFSTAT = 1<<2,
+ REBASE_FORCE = 1<<3,
+ REBASE_INTERACTIVE_EXPLICIT = 1<<4,
} flags;
- struct strbuf git_am_opt;
+ struct argv_array git_am_opts;
+ const char *action;
+ int signoff;
+ int allow_rerere_autoupdate;
+ int keep_empty;
+ int autosquash;
+ char *gpg_sign_opt;
+ int autostash;
+ char *cmd;
+ int allow_empty_message;
+ int rebase_merges, rebase_cousins;
+ char *strategy, *strategy_opts;
+ struct strbuf git_format_patch_opt;
+ int reschedule_failed_exec;
};
static int is_interactive(struct rebase_options *opts)
opts->type == REBASE_PRESERVE_MERGES;
}
+static void imply_interactive(struct rebase_options *opts, const char *option)
+{
+ switch (opts->type) {
+ case REBASE_AM:
+ die(_("%s requires an interactive rebase"), option);
+ break;
+ case REBASE_INTERACTIVE:
+ case REBASE_PRESERVE_MERGES:
+ break;
+ case REBASE_MERGE:
+ /* we silently *upgrade* --merge to --interactive if needed */
+ default:
+ opts->type = REBASE_INTERACTIVE; /* implied */
+ break;
+ }
+}
+
/* Returns the filename prefixed by the state_dir */
static const char *state_dir_path(const char *filename, struct rebase_options *opts)
{
return path.buf;
}
+/* Read one file, then strip line endings */
+static int read_one(const char *path, struct strbuf *buf)
+{
+ if (strbuf_read_file(buf, path, 0) < 0)
+ return error_errno(_("could not read '%s'"), path);
+ strbuf_trim_trailing_newline(buf);
+ return 0;
+}
+
+/* Initialize the rebase options from the state directory. */
+static int read_basic_state(struct rebase_options *opts)
+{
+ struct strbuf head_name = STRBUF_INIT;
+ struct strbuf buf = STRBUF_INIT;
+ struct object_id oid;
+
+ if (read_one(state_dir_path("head-name", opts), &head_name) ||
+ read_one(state_dir_path("onto", opts), &buf))
+ return -1;
+ 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);
+
+ /*
+ * We always write to orig-head, but interactive rebase used to write to
+ * head. Fall back to reading from head to cover for the case that the
+ * user upgraded git with an ongoing interactive rebase.
+ */
+ strbuf_reset(&buf);
+ if (file_exists(state_dir_path("orig-head", opts))) {
+ if (read_one(state_dir_path("orig-head", opts), &buf))
+ return -1;
+ } else if (read_one(state_dir_path("head", opts), &buf))
+ return -1;
+ if (get_oid(buf.buf, &opts->orig_head))
+ return error(_("invalid orig-head: '%s'"), buf.buf);
+
+ strbuf_reset(&buf);
+ if (read_one(state_dir_path("quiet", opts), &buf))
+ return -1;
+ if (buf.len)
+ opts->flags &= ~REBASE_NO_QUIET;
+ else
+ opts->flags |= REBASE_NO_QUIET;
+
+ if (file_exists(state_dir_path("verbose", opts)))
+ opts->flags |= REBASE_VERBOSE;
+
+ if (file_exists(state_dir_path("signoff", opts))) {
+ opts->signoff = 1;
+ opts->flags |= REBASE_FORCE;
+ }
+
+ if (file_exists(state_dir_path("allow_rerere_autoupdate", opts))) {
+ strbuf_reset(&buf);
+ if (read_one(state_dir_path("allow_rerere_autoupdate", opts),
+ &buf))
+ return -1;
+ if (!strcmp(buf.buf, "--rerere-autoupdate"))
+ opts->allow_rerere_autoupdate = 1;
+ else if (!strcmp(buf.buf, "--no-rerere-autoupdate"))
+ opts->allow_rerere_autoupdate = 0;
+ else
+ warning(_("ignoring invalid allow_rerere_autoupdate: "
+ "'%s'"), buf.buf);
+ } else
+ opts->allow_rerere_autoupdate = -1;
+
+ if (file_exists(state_dir_path("gpg_sign_opt", opts))) {
+ strbuf_reset(&buf);
+ if (read_one(state_dir_path("gpg_sign_opt", opts),
+ &buf))
+ return -1;
+ free(opts->gpg_sign_opt);
+ opts->gpg_sign_opt = xstrdup(buf.buf);
+ }
+
+ if (file_exists(state_dir_path("strategy", opts))) {
+ strbuf_reset(&buf);
+ if (read_one(state_dir_path("strategy", opts), &buf))
+ return -1;
+ free(opts->strategy);
+ opts->strategy = xstrdup(buf.buf);
+ }
+
+ if (file_exists(state_dir_path("strategy_opts", opts))) {
+ strbuf_reset(&buf);
+ if (read_one(state_dir_path("strategy_opts", opts), &buf))
+ return -1;
+ free(opts->strategy_opts);
+ opts->strategy_opts = xstrdup(buf.buf);
+ }
+
+ strbuf_release(&buf);
+
+ return 0;
+}
+
+static int apply_autostash(struct rebase_options *opts)
+{
+ const char *path = state_dir_path("autostash", opts);
+ struct strbuf autostash = STRBUF_INIT;
+ struct child_process stash_apply = CHILD_PROCESS_INIT;
+
+ if (!file_exists(path))
+ return 0;
+
+ if (read_one(path, &autostash))
+ return error(_("Could not read '%s'"), path);
+ /* Ensure that the hash is not mistaken for a number */
+ strbuf_addstr(&autostash, "^0");
+ argv_array_pushl(&stash_apply.args,
+ "stash", "apply", autostash.buf, NULL);
+ stash_apply.git_cmd = 1;
+ stash_apply.no_stderr = stash_apply.no_stdout =
+ stash_apply.no_stdin = 1;
+ if (!run_command(&stash_apply))
+ printf(_("Applied autostash.\n"));
+ else {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ int res = 0;
+
+ argv_array_pushl(&args,
+ "stash", "store", "-m", "autostash", "-q",
+ autostash.buf, NULL);
+ if (run_command_v_opt(args.argv, RUN_GIT_CMD))
+ res = error(_("Cannot store %s"), autostash.buf);
+ argv_array_clear(&args);
+ strbuf_release(&autostash);
+ if (res)
+ return res;
+
+ fprintf(stderr,
+ _("Applying autostash resulted in conflicts.\n"
+ "Your changes are safe in the stash.\n"
+ "You can run \"git stash pop\" or \"git stash drop\" "
+ "at any time.\n"));
+ }
+
+ strbuf_release(&autostash);
+ return 0;
+}
+
static int finish_rebase(struct rebase_options *opts)
{
struct strbuf dir = STRBUF_INIT;
const char *argv_gc_auto[] = { "gc", "--auto", NULL };
delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF);
- apply_autostash();
+ apply_autostash(opts);
close_all_packs(the_repository->objects);
/*
* We ignore errors in 'gc --auto', since the
}
}
+static const char *resolvemsg =
+N_("Resolve all conflicts manually, mark them as resolved with\n"
+"\"git add/rm <conflicted_files>\", then run \"git rebase --continue\".\n"
+"You can instead skip this commit: run \"git rebase --skip\".\n"
+"To abort and get back to the state before \"git rebase\", run "
+"\"git rebase --abort\".");
+
static int run_specific_rebase(struct rebase_options *opts)
{
const char *argv[] = { NULL, NULL };
- struct strbuf script_snippet = STRBUF_INIT;
+ struct strbuf script_snippet = STRBUF_INIT, buf = STRBUF_INIT;
int status;
const char *backend, *backend_func;
+ if (opts->type == REBASE_INTERACTIVE) {
+ /* Run builtin interactive rebase */
+ struct child_process child = CHILD_PROCESS_INIT;
+
+ argv_array_pushf(&child.env_array, "GIT_CHERRY_PICK_HELP=%s",
+ resolvemsg);
+ if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) {
+ argv_array_push(&child.env_array, "GIT_EDITOR=:");
+ opts->autosquash = 0;
+ }
+
+ child.git_cmd = 1;
+ argv_array_push(&child.args, "rebase--interactive");
+
+ if (opts->action)
+ argv_array_pushf(&child.args, "--%s", opts->action);
+ if (opts->keep_empty)
+ argv_array_push(&child.args, "--keep-empty");
+ if (opts->rebase_merges)
+ argv_array_push(&child.args, "--rebase-merges");
+ if (opts->rebase_cousins)
+ argv_array_push(&child.args, "--rebase-cousins");
+ if (opts->autosquash)
+ argv_array_push(&child.args, "--autosquash");
+ if (opts->flags & REBASE_VERBOSE)
+ argv_array_push(&child.args, "--verbose");
+ if (opts->flags & REBASE_FORCE)
+ argv_array_push(&child.args, "--no-ff");
+ if (opts->restrict_revision)
+ argv_array_pushf(&child.args,
+ "--restrict-revision=^%s",
+ oid_to_hex(&opts->restrict_revision->object.oid));
+ if (opts->upstream)
+ argv_array_pushf(&child.args, "--upstream=%s",
+ oid_to_hex(&opts->upstream->object.oid));
+ if (opts->onto)
+ argv_array_pushf(&child.args, "--onto=%s",
+ oid_to_hex(&opts->onto->object.oid));
+ if (opts->squash_onto)
+ argv_array_pushf(&child.args, "--squash-onto=%s",
+ oid_to_hex(opts->squash_onto));
+ if (opts->onto_name)
+ argv_array_pushf(&child.args, "--onto-name=%s",
+ opts->onto_name);
+ argv_array_pushf(&child.args, "--head-name=%s",
+ opts->head_name ?
+ opts->head_name : "detached HEAD");
+ if (opts->strategy)
+ argv_array_pushf(&child.args, "--strategy=%s",
+ opts->strategy);
+ if (opts->strategy_opts)
+ argv_array_pushf(&child.args, "--strategy-opts=%s",
+ opts->strategy_opts);
+ if (opts->switch_to)
+ argv_array_pushf(&child.args, "--switch-to=%s",
+ opts->switch_to);
+ if (opts->cmd)
+ argv_array_pushf(&child.args, "--cmd=%s", opts->cmd);
+ if (opts->allow_empty_message)
+ argv_array_push(&child.args, "--allow-empty-message");
+ if (opts->allow_rerere_autoupdate > 0)
+ argv_array_push(&child.args, "--rerere-autoupdate");
+ else if (opts->allow_rerere_autoupdate == 0)
+ argv_array_push(&child.args, "--no-rerere-autoupdate");
+ if (opts->gpg_sign_opt)
+ argv_array_push(&child.args, opts->gpg_sign_opt);
+ if (opts->signoff)
+ argv_array_push(&child.args, "--signoff");
+ if (opts->reschedule_failed_exec)
+ argv_array_push(&child.args, "--reschedule-failed-exec");
+
+ status = run_command(&child);
+ goto finished_rebase;
+ }
+
add_var(&script_snippet, "GIT_DIR", absolute_path(get_git_dir()));
add_var(&script_snippet, "state_dir", opts->state_dir);
add_var(&script_snippet, "upstream_name", opts->upstream_name);
- add_var(&script_snippet, "upstream",
- oid_to_hex(&opts->upstream->object.oid));
- add_var(&script_snippet, "head_name", opts->head_name);
+ add_var(&script_snippet, "upstream", opts->upstream ?
+ oid_to_hex(&opts->upstream->object.oid) : NULL);
+ add_var(&script_snippet, "head_name",
+ opts->head_name ? opts->head_name : "detached HEAD");
add_var(&script_snippet, "orig_head", oid_to_hex(&opts->orig_head));
- add_var(&script_snippet, "onto", oid_to_hex(&opts->onto->object.oid));
+ add_var(&script_snippet, "onto", opts->onto ?
+ oid_to_hex(&opts->onto->object.oid) : NULL);
add_var(&script_snippet, "onto_name", opts->onto_name);
add_var(&script_snippet, "revisions", opts->revisions);
add_var(&script_snippet, "restrict_revision", opts->restrict_revision ?
oid_to_hex(&opts->restrict_revision->object.oid) : NULL);
add_var(&script_snippet, "GIT_QUIET",
opts->flags & REBASE_NO_QUIET ? "" : "t");
- add_var(&script_snippet, "git_am_opt", opts->git_am_opt.buf);
+ sq_quote_argv_pretty(&buf, opts->git_am_opts.argv);
+ add_var(&script_snippet, "git_am_opt", buf.buf);
+ strbuf_release(&buf);
add_var(&script_snippet, "verbose",
opts->flags & REBASE_VERBOSE ? "t" : "");
add_var(&script_snippet, "diffstat",
opts->flags & REBASE_DIFFSTAT ? "t" : "");
+ add_var(&script_snippet, "force_rebase",
+ opts->flags & REBASE_FORCE ? "t" : "");
+ if (opts->switch_to)
+ add_var(&script_snippet, "switch_to", opts->switch_to);
+ add_var(&script_snippet, "action", opts->action ? opts->action : "");
+ add_var(&script_snippet, "signoff", opts->signoff ? "--signoff" : "");
+ add_var(&script_snippet, "allow_rerere_autoupdate",
+ opts->allow_rerere_autoupdate < 0 ? "" :
+ opts->allow_rerere_autoupdate ?
+ "--rerere-autoupdate" : "--no-rerere-autoupdate");
+ add_var(&script_snippet, "keep_empty", opts->keep_empty ? "yes" : "");
+ add_var(&script_snippet, "autosquash", opts->autosquash ? "t" : "");
+ add_var(&script_snippet, "gpg_sign_opt", opts->gpg_sign_opt);
+ add_var(&script_snippet, "cmd", opts->cmd);
+ add_var(&script_snippet, "allow_empty_message",
+ opts->allow_empty_message ? "--allow-empty-message" : "");
+ add_var(&script_snippet, "rebase_merges",
+ opts->rebase_merges ? "t" : "");
+ add_var(&script_snippet, "rebase_cousins",
+ opts->rebase_cousins ? "t" : "");
+ add_var(&script_snippet, "strategy", opts->strategy);
+ add_var(&script_snippet, "strategy_opts", opts->strategy_opts);
+ add_var(&script_snippet, "rebase_root", opts->root ? "t" : "");
+ add_var(&script_snippet, "squash_onto",
+ opts->squash_onto ? oid_to_hex(opts->squash_onto) : "");
+ add_var(&script_snippet, "git_format_patch_opt",
+ opts->git_format_patch_opt.buf);
+
+ if (is_interactive(opts) &&
+ !(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) {
+ strbuf_addstr(&script_snippet,
+ "GIT_EDITOR=:; export GIT_EDITOR; ");
+ opts->autosquash = 0;
+ }
switch (opts->type) {
case REBASE_AM:
backend = "git-rebase--am";
backend_func = "git_rebase__am";
break;
- case REBASE_INTERACTIVE:
- backend = "git-rebase--interactive";
- backend_func = "git_rebase__interactive";
- break;
case REBASE_MERGE:
backend = "git-rebase--merge";
backend_func = "git_rebase__merge";
argv[0] = script_snippet.buf;
status = run_command_v_opt(argv, RUN_USING_SHELL);
+finished_rebase:
if (opts->dont_finish_rebase)
; /* do nothing */
+ else if (opts->type == REBASE_INTERACTIVE)
+ ; /* interactive rebase cleans up after itself */
else if (status == 0) {
if (!file_exists(state_dir_path("stopped-sha", opts)))
finish_rebase(opts);
} else if (status == 2) {
struct strbuf dir = STRBUF_INIT;
- apply_autostash();
+ apply_autostash(opts);
strbuf_addstr(&dir, opts->state_dir);
remove_dir_recursively(&dir, 0);
strbuf_release(&dir);
#define GIT_REFLOG_ACTION_ENVIRONMENT "GIT_REFLOG_ACTION"
+#define RESET_HEAD_DETACH (1<<0)
+#define RESET_HEAD_HARD (1<<1)
+
static int reset_head(struct object_id *oid, const char *action,
- const char *switch_to_branch, int detach_head)
+ const char *switch_to_branch, unsigned flags,
+ const char *reflog_orig_head, const char *reflog_head)
{
+ unsigned detach_head = flags & RESET_HEAD_DETACH;
+ unsigned reset_hard = flags & RESET_HEAD_HARD;
struct object_id head_oid;
- struct tree_desc desc;
+ struct tree_desc desc[2] = { { NULL }, { NULL } };
struct lock_file lock = LOCK_INIT;
struct unpack_trees_options unpack_tree_opts;
struct tree *tree;
size_t prefix_len;
struct object_id *orig = NULL, oid_orig,
*old_orig = NULL, oid_old_orig;
- int ret = 0;
+ int ret = 0, nr = 0;
- if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0)
- return -1;
+ if (switch_to_branch && !starts_with(switch_to_branch, "refs/"))
+ BUG("Not a fully qualified branch: '%s'", switch_to_branch);
- if (!oid) {
- if (get_oid("HEAD", &head_oid)) {
- rollback_lock_file(&lock);
- return error(_("could not determine HEAD revision"));
- }
- oid = &head_oid;
+ if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) {
+ ret = -1;
+ goto leave_reset_head;
+ }
+
+ if ((!oid || !reset_hard) && get_oid("HEAD", &head_oid)) {
+ ret = error(_("could not determine HEAD revision"));
+ goto leave_reset_head;
}
+ if (!oid)
+ oid = &head_oid;
+
memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts));
setup_unpack_trees_porcelain(&unpack_tree_opts, action);
unpack_tree_opts.head_idx = 1;
unpack_tree_opts.src_index = the_repository->index;
unpack_tree_opts.dst_index = the_repository->index;
- unpack_tree_opts.fn = oneway_merge;
+ unpack_tree_opts.fn = reset_hard ? oneway_merge : twoway_merge;
unpack_tree_opts.update = 1;
unpack_tree_opts.merge = 1;
if (!detach_head)
unpack_tree_opts.reset = 1;
if (read_index_unmerged(the_repository->index) < 0) {
- rollback_lock_file(&lock);
- return error(_("could not read index"));
+ ret = error(_("could not read index"));
+ goto leave_reset_head;
}
- if (!fill_tree_descriptor(&desc, oid)) {
- error(_("failed to find tree of %s"), oid_to_hex(oid));
- rollback_lock_file(&lock);
- free((void *)desc.buffer);
- return -1;
+ if (!reset_hard && !fill_tree_descriptor(&desc[nr++], &head_oid)) {
+ ret = error(_("failed to find tree of %s"),
+ oid_to_hex(&head_oid));
+ goto leave_reset_head;
}
- if (unpack_trees(1, &desc, &unpack_tree_opts)) {
- rollback_lock_file(&lock);
- free((void *)desc.buffer);
- return -1;
+ if (!fill_tree_descriptor(&desc[nr++], oid)) {
+ ret = error(_("failed to find tree of %s"), oid_to_hex(oid));
+ goto leave_reset_head;
+ }
+
+ if (unpack_trees(nr, desc, &unpack_tree_opts)) {
+ ret = -1;
+ goto leave_reset_head;
}
tree = parse_tree_indirect(oid);
prime_cache_tree(the_repository->index, tree);
- if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0)
+ if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0) {
ret = error(_("could not write index"));
- free((void *)desc.buffer);
-
- if (ret)
- return ret;
+ goto leave_reset_head;
+ }
reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT);
strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase");
old_orig = &oid_old_orig;
if (!get_oid("HEAD", &oid_orig)) {
orig = &oid_orig;
- strbuf_addstr(&msg, "updating ORIG_HEAD");
- update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0,
+ if (!reflog_orig_head) {
+ strbuf_addstr(&msg, "updating ORIG_HEAD");
+ reflog_orig_head = msg.buf;
+ }
+ update_ref(reflog_orig_head, "ORIG_HEAD", orig, old_orig, 0,
UPDATE_REFS_MSG_ON_ERR);
} else if (old_orig)
delete_ref(NULL, "ORIG_HEAD", old_orig, 0);
- strbuf_setlen(&msg, prefix_len);
- strbuf_addstr(&msg, "updating HEAD");
+ if (!reflog_head) {
+ strbuf_setlen(&msg, prefix_len);
+ strbuf_addstr(&msg, "updating HEAD");
+ reflog_head = msg.buf;
+ }
if (!switch_to_branch)
- ret = update_ref(msg.buf, "HEAD", oid, orig, REF_NO_DEREF,
+ ret = update_ref(reflog_head, "HEAD", oid, orig,
+ detach_head ? REF_NO_DEREF : 0,
UPDATE_REFS_MSG_ON_ERR);
else {
ret = create_symref("HEAD", switch_to_branch, msg.buf);
if (!ret)
- ret = update_ref(msg.buf, "HEAD", oid, NULL, 0,
+ ret = update_ref(reflog_head, "HEAD", oid, NULL, 0,
UPDATE_REFS_MSG_ON_ERR);
}
+leave_reset_head:
strbuf_release(&msg);
+ rollback_lock_file(&lock);
+ while (nr)
+ free((void *)desc[--nr].buffer);
return ret;
}
return 0;
}
+ if (!strcmp(var, "rebase.autosquash")) {
+ opts->autosquash = git_config_bool(var, value);
+ return 0;
+ }
+
+ if (!strcmp(var, "commit.gpgsign")) {
+ free(opts->gpg_sign_opt);
+ opts->gpg_sign_opt = git_config_bool(var, value) ?
+ xstrdup("-S") : NULL;
+ return 0;
+ }
+
+ if (!strcmp(var, "rebase.autostash")) {
+ opts->autostash = git_config_bool(var, value);
+ return 0;
+ }
+
+ if (!strcmp(var, "rebase.reschedulefailedexec")) {
+ opts->reschedule_failed_exec = git_config_bool(var, value);
+ return 0;
+ }
+
return git_default_config(var, value, data);
}
merge_bases = get_merge_bases(onto, head);
if (merge_bases && !merge_bases->next) {
oidcpy(merge_base, &merge_bases->item->object.oid);
- res = !oidcmp(merge_base, &onto->object.oid);
+ res = oideq(merge_base, &onto->object.oid);
} else {
oidcpy(merge_base, &null_oid);
res = 0;
return res && is_linear_history(onto, head);
}
+/* -i followed by -m is still -i */
+static int parse_opt_merge(const struct option *opt, const char *arg, int unset)
+{
+ struct rebase_options *opts = opt->value;
+
+ BUG_ON_OPT_NEG(unset);
+ BUG_ON_OPT_ARG(arg);
+
+ if (!is_interactive(opts))
+ opts->type = REBASE_MERGE;
+
+ return 0;
+}
+
+/* -i followed by -p is still explicitly interactive, but -p alone is not */
+static int parse_opt_interactive(const struct option *opt, const char *arg,
+ int unset)
+{
+ struct rebase_options *opts = opt->value;
+
+ BUG_ON_OPT_NEG(unset);
+ BUG_ON_OPT_ARG(arg);
+
+ opts->type = REBASE_INTERACTIVE;
+ opts->flags |= REBASE_INTERACTIVE_EXPLICIT;
+
+ return 0;
+}
+
+struct opt_y {
+ struct string_list *list;
+ struct rebase_options *options;
+};
+
+static int parse_opt_y(const struct option *opt, const char *arg, int unset)
+{
+ struct opt_y *o = opt->value;
+
+ if (unset || !arg)
+ return -1;
+
+ o->options->reschedule_failed_exec = 1;
+ string_list_append(o->list, arg);
+ return 0;
+}
+
+static void NORETURN error_on_missing_default_upstream(void)
+{
+ struct branch *current_branch = branch_get(NULL);
+
+ printf(_("%s\n"
+ "Please specify which branch you want to rebase against.\n"
+ "See git-rebase(1) for details.\n"
+ "\n"
+ " git rebase '<branch>'\n"
+ "\n"),
+ current_branch ? _("There is no tracking information for "
+ "the current branch.") :
+ _("You are not currently on a branch."));
+
+ if (current_branch) {
+ const char *remote = current_branch->remote_name;
+
+ if (!remote)
+ remote = _("<remote>");
+
+ printf(_("If you wish to set tracking information for this "
+ "branch you can do so with:\n"
+ "\n"
+ " git branch --set-upstream-to=%s/<branch> %s\n"
+ "\n"),
+ remote, current_branch->name);
+ }
+ exit(1);
+}
+
+static void set_reflog_action(struct rebase_options *options)
+{
+ const char *env;
+ struct strbuf buf = STRBUF_INIT;
+
+ if (!is_interactive(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 -i (%s)", options->action);
+ setenv(GIT_REFLOG_ACTION_ENVIRONMENT, buf.buf, 1);
+ strbuf_release(&buf);
+}
+
int cmd_rebase(int argc, const char **argv, const char *prefix)
{
struct rebase_options options = {
.type = REBASE_UNSPECIFIED,
.flags = REBASE_NO_QUIET,
- .git_am_opt = STRBUF_INIT,
+ .git_am_opts = ARGV_ARRAY_INIT,
+ .allow_rerere_autoupdate = -1,
+ .allow_empty_message = 1,
+ .git_format_patch_opt = STRBUF_INIT,
};
const char *branch_name;
- int ret, flags;
+ int ret, flags, total_argc, in_progress = 0;
int ok_to_skip_pre_rebase = 0;
struct strbuf msg = STRBUF_INIT;
struct strbuf revisions = STRBUF_INIT;
+ struct strbuf buf = STRBUF_INIT;
struct object_id merge_base;
+ enum {
+ NO_ACTION,
+ ACTION_CONTINUE,
+ ACTION_SKIP,
+ ACTION_ABORT,
+ ACTION_QUIT,
+ ACTION_EDIT_TODO,
+ ACTION_SHOW_CURRENT_PATCH,
+ } action = NO_ACTION;
+ const char *gpg_sign = NULL;
+ struct string_list exec = STRING_LIST_INIT_NODUP;
+ const char *rebase_merges = NULL;
+ int fork_point = -1;
+ struct string_list strategy_options = STRING_LIST_INIT_NODUP;
+ struct object_id squash_onto;
+ char *squash_onto_name = NULL;
+ struct opt_y opt_y = { .list = &exec, .options = &options };
struct option builtin_rebase_options[] = {
OPT_STRING(0, "onto", &options.onto_name,
N_("revision"),
{OPTION_NEGBIT, 'n', "no-stat", &options.flags, NULL,
N_("do not show diffstat of what changed upstream"),
PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT },
+ OPT_BOOL(0, "signoff", &options.signoff,
+ N_("add a Signed-off-by: line to each commit")),
+ OPT_PASSTHRU_ARGV(0, "ignore-whitespace", &options.git_am_opts,
+ NULL, N_("passed to 'git am'"),
+ PARSE_OPT_NOARG),
+ OPT_PASSTHRU_ARGV(0, "committer-date-is-author-date",
+ &options.git_am_opts, NULL,
+ N_("passed to 'git am'"), PARSE_OPT_NOARG),
+ OPT_PASSTHRU_ARGV(0, "ignore-date", &options.git_am_opts, NULL,
+ N_("passed to 'git am'"), PARSE_OPT_NOARG),
+ OPT_PASSTHRU_ARGV('C', NULL, &options.git_am_opts, N_("n"),
+ N_("passed to 'git apply'"), 0),
+ OPT_PASSTHRU_ARGV(0, "whitespace", &options.git_am_opts,
+ N_("action"), N_("passed to 'git apply'"), 0),
+ OPT_BIT('f', "force-rebase", &options.flags,
+ N_("cherry-pick all commits, even if unchanged"),
+ REBASE_FORCE),
+ OPT_BIT(0, "no-ff", &options.flags,
+ N_("cherry-pick all commits, even if unchanged"),
+ REBASE_FORCE),
+ OPT_CMDMODE(0, "continue", &action, N_("continue"),
+ ACTION_CONTINUE),
+ OPT_CMDMODE(0, "skip", &action,
+ N_("skip current patch and continue"), ACTION_SKIP),
+ OPT_CMDMODE(0, "abort", &action,
+ N_("abort and check out the original branch"),
+ ACTION_ABORT),
+ OPT_CMDMODE(0, "quit", &action,
+ N_("abort but keep HEAD where it is"), ACTION_QUIT),
+ OPT_CMDMODE(0, "edit-todo", &action, N_("edit the todo list "
+ "during an interactive rebase"), ACTION_EDIT_TODO),
+ OPT_CMDMODE(0, "show-current-patch", &action,
+ N_("show the patch file being applied or merged"),
+ ACTION_SHOW_CURRENT_PATCH),
+ { OPTION_CALLBACK, 'm', "merge", &options, NULL,
+ N_("use merging strategies to rebase"),
+ PARSE_OPT_NOARG | PARSE_OPT_NONEG,
+ parse_opt_merge },
+ { OPTION_CALLBACK, 'i', "interactive", &options, NULL,
+ N_("let the user edit the list of commits to rebase"),
+ PARSE_OPT_NOARG | PARSE_OPT_NONEG,
+ parse_opt_interactive },
+ OPT_SET_INT('p', "preserve-merges", &options.type,
+ N_("try to recreate merges instead of ignoring "
+ "them"), REBASE_PRESERVE_MERGES),
+ OPT_BOOL(0, "rerere-autoupdate",
+ &options.allow_rerere_autoupdate,
+ N_("allow rerere to update index with resolved "
+ "conflict")),
+ OPT_BOOL('k', "keep-empty", &options.keep_empty,
+ N_("preserve empty commits during rebase")),
+ OPT_BOOL(0, "autosquash", &options.autosquash,
+ N_("move commits that begin with "
+ "squash!/fixup! under -i")),
+ { OPTION_STRING, 'S', "gpg-sign", &gpg_sign, N_("key-id"),
+ N_("GPG-sign commits"),
+ PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
+ OPT_BOOL(0, "autostash", &options.autostash,
+ N_("automatically stash/stash pop before and after")),
+ OPT_STRING_LIST('x', "exec", &exec, N_("exec"),
+ N_("add exec lines after each commit of the "
+ "editable list")),
+ { OPTION_CALLBACK, 'y', NULL, &opt_y, N_("<cmd>"),
+ N_("same as --reschedule-failed-exec -x <cmd>"),
+ PARSE_OPT_NONEG, parse_opt_y },
+ OPT_BOOL(0, "allow-empty-message",
+ &options.allow_empty_message,
+ N_("allow rebasing commits with empty messages")),
+ {OPTION_STRING, 'r', "rebase-merges", &rebase_merges,
+ N_("mode"),
+ N_("try to rebase merges instead of skipping them"),
+ PARSE_OPT_OPTARG, NULL, (intptr_t)""},
+ OPT_BOOL(0, "fork-point", &fork_point,
+ N_("use 'merge-base --fork-point' to refine upstream")),
+ OPT_STRING('s', "strategy", &options.strategy,
+ N_("strategy"), N_("use the given merge strategy")),
+ OPT_STRING_LIST('X', "strategy-option", &strategy_options,
+ N_("option"),
+ N_("pass the argument through to the merge "
+ "strategy")),
+ OPT_BOOL(0, "root", &options.root,
+ N_("rebase all reachable commits up to the root(s)")),
+ OPT_BOOL(0, "reschedule-failed-exec",
+ &options.reschedule_failed_exec,
+ N_("automatically re-schedule any `exec` that fails")),
OPT_END(),
};
+ int i;
/*
* NEEDSWORK: Once the builtin rebase has been tested enough
git_config(rebase_config, &options);
+ strbuf_reset(&buf);
+ strbuf_addf(&buf, "%s/applying", apply_dir());
+ if(file_exists(buf.buf))
+ die(_("It looks like 'git am' is in progress. Cannot rebase."));
+
+ if (is_directory(apply_dir())) {
+ options.type = REBASE_AM;
+ options.state_dir = apply_dir();
+ } else if (is_directory(merge_dir())) {
+ strbuf_reset(&buf);
+ strbuf_addf(&buf, "%s/rewritten", merge_dir());
+ if (is_directory(buf.buf)) {
+ options.type = REBASE_PRESERVE_MERGES;
+ options.flags |= REBASE_INTERACTIVE_EXPLICIT;
+ } else {
+ strbuf_reset(&buf);
+ strbuf_addf(&buf, "%s/interactive", merge_dir());
+ if(file_exists(buf.buf)) {
+ options.type = REBASE_INTERACTIVE;
+ options.flags |= REBASE_INTERACTIVE_EXPLICIT;
+ } else
+ options.type = REBASE_MERGE;
+ }
+ options.state_dir = merge_dir();
+ }
+
+ if (options.type != REBASE_UNSPECIFIED)
+ in_progress = 1;
+
+ total_argc = argc;
argc = parse_options(argc, argv, prefix,
builtin_rebase_options,
builtin_rebase_usage, 0);
+ if (action != NO_ACTION && total_argc != 2) {
+ usage_with_options(builtin_rebase_usage,
+ builtin_rebase_options);
+ }
+
if (argc > 2)
usage_with_options(builtin_rebase_usage,
builtin_rebase_options);
+ if (action != NO_ACTION && !in_progress)
+ die(_("No rebase in progress?"));
+ setenv(GIT_REFLOG_ACTION_ENVIRONMENT, "rebase", 0);
+
+ if (action == ACTION_EDIT_TODO && !is_interactive(&options))
+ die(_("The --edit-todo action can only be used during "
+ "interactive rebase."));
+
+ switch (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"));
+
+ fd = hold_locked_index(&lock_file, 0);
+ if (read_index(the_repository->index) < 0)
+ die(_("could not read index"));
+ refresh_index(the_repository->index, REFRESH_QUIET, NULL, NULL,
+ NULL);
+ if (0 <= fd)
+ update_index_if_able(the_repository->index,
+ &lock_file);
+ rollback_lock_file(&lock_file);
+
+ if (has_unstaged_changes(1)) {
+ puts(_("You must edit all merge conflicts and then\n"
+ "mark them as resolved using git add"));
+ exit(1);
+ }
+ if (read_basic_state(&options))
+ exit(1);
+ goto run_rebase;
+ }
+ case ACTION_SKIP: {
+ struct string_list merge_rr = STRING_LIST_INIT_DUP;
+
+ options.action = "skip";
+ set_reflog_action(&options);
+
+ rerere_clear(&merge_rr);
+ string_list_clear(&merge_rr, 1);
+
+ if (reset_head(NULL, "reset", NULL, RESET_HEAD_HARD,
+ NULL, NULL) < 0)
+ die(_("could not discard worktree changes"));
+ remove_branch_state();
+ if (read_basic_state(&options))
+ exit(1);
+ goto run_rebase;
+ }
+ case ACTION_ABORT: {
+ struct string_list merge_rr = STRING_LIST_INIT_DUP;
+ options.action = "abort";
+ set_reflog_action(&options);
+
+ rerere_clear(&merge_rr);
+ string_list_clear(&merge_rr, 1);
+
+ if (read_basic_state(&options))
+ exit(1);
+ if (reset_head(&options.orig_head, "reset",
+ options.head_name, RESET_HEAD_HARD,
+ NULL, NULL) < 0)
+ die(_("could not move back to %s"),
+ oid_to_hex(&options.orig_head));
+ remove_branch_state();
+ ret = finish_rebase(&options);
+ goto cleanup;
+ }
+ case ACTION_QUIT: {
+ strbuf_reset(&buf);
+ strbuf_addstr(&buf, options.state_dir);
+ ret = !!remove_dir_recursively(&buf, 0);
+ if (ret)
+ die(_("could not remove '%s'"), options.state_dir);
+ 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 NO_ACTION:
+ break;
+ default:
+ BUG("action: %d", action);
+ }
+
+ /* Make sure no rebase is in progress */
+ if (in_progress) {
+ const char *last_slash = strrchr(options.state_dir, '/');
+ const char *state_dir_base =
+ last_slash ? last_slash + 1 : options.state_dir;
+ const char *cmd_live_rebase =
+ "git rebase (--continue | --abort | --skip)";
+ strbuf_reset(&buf);
+ strbuf_addf(&buf, "rm -fr \"%s\"", options.state_dir);
+ die(_("It seems that there is already a %s directory, and\n"
+ "I wonder if you are in the middle of another rebase. "
+ "If that is the\n"
+ "case, please try\n\t%s\n"
+ "If that is not the case, please\n\t%s\n"
+ "and run me again. I am stopping in case you still "
+ "have something\n"
+ "valuable there.\n"),
+ state_dir_base, cmd_live_rebase, buf.buf);
+ }
+
+ for (i = 0; i < options.git_am_opts.argc; i++) {
+ const char *option = options.git_am_opts.argv[i], *p;
+ if (!strcmp(option, "--committer-date-is-author-date") ||
+ !strcmp(option, "--ignore-date") ||
+ !strcmp(option, "--whitespace=fix") ||
+ !strcmp(option, "--whitespace=strip"))
+ options.flags |= REBASE_FORCE;
+ else if (skip_prefix(option, "-C", &p)) {
+ while (*p)
+ if (!isdigit(*(p++)))
+ die(_("switch `C' expects a "
+ "numerical value"));
+ } else if (skip_prefix(option, "--whitespace=", &p)) {
+ if (*p && strcmp(p, "warn") && strcmp(p, "nowarn") &&
+ strcmp(p, "error") && strcmp(p, "error-all"))
+ die("Invalid whitespace option: '%s'", p);
+ }
+ }
+
if (!(options.flags & REBASE_NO_QUIET))
- strbuf_addstr(&options.git_am_opt, " -q");
+ argv_array_push(&options.git_am_opts, "-q");
+
+ if (options.keep_empty)
+ imply_interactive(&options, "--keep-empty");
+
+ if (gpg_sign) {
+ free(options.gpg_sign_opt);
+ options.gpg_sign_opt = xstrfmt("-S%s", gpg_sign);
+ }
+
+ if (exec.nr) {
+ int i;
+
+ imply_interactive(&options, "--exec");
+
+ strbuf_reset(&buf);
+ for (i = 0; i < exec.nr; i++)
+ strbuf_addf(&buf, "exec %s\n", exec.items[i].string);
+ options.cmd = xstrdup(buf.buf);
+ }
+
+ if (rebase_merges) {
+ if (!*rebase_merges)
+ ; /* default mode; do nothing */
+ else if (!strcmp("rebase-cousins", rebase_merges))
+ options.rebase_cousins = 1;
+ else if (strcmp("no-rebase-cousins", rebase_merges))
+ die(_("Unknown mode: %s"), rebase_merges);
+ options.rebase_merges = 1;
+ imply_interactive(&options, "--rebase-merges");
+ }
+
+ if (strategy_options.nr) {
+ int i;
+
+ if (!options.strategy)
+ options.strategy = "recursive";
+
+ strbuf_reset(&buf);
+ for (i = 0; i < strategy_options.nr; i++)
+ strbuf_addf(&buf, " --%s",
+ strategy_options.items[i].string);
+ options.strategy_opts = xstrdup(buf.buf);
+ }
+
+ if (options.strategy) {
+ options.strategy = xstrdup(options.strategy);
+ switch (options.type) {
+ case REBASE_AM:
+ die(_("--strategy requires --merge or --interactive"));
+ case REBASE_MERGE:
+ case REBASE_INTERACTIVE:
+ case REBASE_PRESERVE_MERGES:
+ /* compatible */
+ break;
+ case REBASE_UNSPECIFIED:
+ options.type = REBASE_MERGE;
+ break;
+ default:
+ BUG("unhandled rebase type (%d)", options.type);
+ }
+ }
+
+ if (options.root && !options.onto_name)
+ imply_interactive(&options, "--root without --onto");
+
+ if (isatty(2) && options.flags & REBASE_NO_QUIET)
+ strbuf_addstr(&options.git_format_patch_opt, " --progress");
switch (options.type) {
case REBASE_MERGE:
break;
}
+ if (options.reschedule_failed_exec && !is_interactive(&options))
+ die(_("--reschedule-failed-exec requires an interactive rebase"));
+
+ if (options.git_am_opts.argc) {
+ /* all am options except -q are compatible only with --am */
+ for (i = options.git_am_opts.argc - 1; i >= 0; i--)
+ if (strcmp(options.git_am_opts.argv[i], "-q"))
+ break;
+
+ if (is_interactive(&options) && i >= 0)
+ die(_("error: cannot combine interactive options "
+ "(--interactive, --exec, --rebase-merges, "
+ "--preserve-merges, --keep-empty, --root + "
+ "--onto) with am options (%s)"), buf.buf);
+ if (options.type == REBASE_MERGE && i >= 0)
+ die(_("error: cannot combine merge options (--merge, "
+ "--strategy, --strategy-option) with am options "
+ "(%s)"), buf.buf);
+ }
+
+ if (options.signoff) {
+ if (options.type == REBASE_PRESERVE_MERGES)
+ die("cannot combine '--signoff' with "
+ "'--preserve-merges'");
+ argv_array_push(&options.git_am_opts, "--signoff");
+ options.flags |= REBASE_FORCE;
+ }
+
+ if (options.type == REBASE_PRESERVE_MERGES) {
+ /*
+ * Note: incompatibility with --signoff handled in signoff block above
+ * Note: incompatibility with --interactive is just a strong warning;
+ * git-rebase.txt caveats with "unless you know what you are doing"
+ */
+ if (options.rebase_merges)
+ die(_("error: cannot combine '--preserve-merges' with "
+ "'--rebase-merges'"));
+
+ if (options.reschedule_failed_exec)
+ die(_("error: cannot combine '--preserve-merges' with "
+ "'--reschedule-failed-exec'"));
+ }
+
+ if (options.rebase_merges) {
+ if (strategy_options.nr)
+ die(_("error: cannot combine '--rebase-merges' with "
+ "'--strategy-option'"));
+ if (options.strategy)
+ die(_("error: cannot combine '--rebase-merges' with "
+ "'--strategy'"));
+ }
+
if (!options.root) {
- if (argc < 1)
- die("TODO: handle @{upstream}");
- else {
+ if (argc < 1) {
+ struct branch *branch;
+
+ branch = branch_get(NULL);
+ options.upstream_name = branch_get_upstream(branch,
+ NULL);
+ if (!options.upstream_name)
+ error_on_missing_default_upstream();
+ if (fork_point < 0)
+ fork_point = 1;
+ } else {
options.upstream_name = argv[0];
argc--;
argv++;
if (!options.upstream)
die(_("invalid upstream '%s'"), options.upstream_name);
options.upstream_arg = options.upstream_name;
- } else
- die("TODO: upstream for --root");
+ } else {
+ if (!options.onto_name) {
+ if (commit_tree("", 0, the_hash_algo->empty_tree, NULL,
+ &squash_onto, NULL, NULL) < 0)
+ die(_("Could not create new root commit"));
+ options.squash_onto = &squash_onto;
+ options.onto_name = squash_onto_name =
+ xstrdup(oid_to_hex(&squash_onto));
+ }
+ options.upstream_name = NULL;
+ options.upstream = NULL;
+ if (argc > 1)
+ usage_with_options(builtin_rebase_usage,
+ builtin_rebase_options);
+ options.upstream_arg = "--root";
+ }
/* Make sure the branch to rebase onto is valid. */
if (!options.onto_name)
* branch_name -- branch/commit being rebased, or
* HEAD (already detached)
* orig_head -- commit object name of tip of the branch before rebasing
- * head_name -- refs/heads/<that-branch> or "detached HEAD"
+ * head_name -- refs/heads/<that-branch> or NULL (detached HEAD)
*/
- if (argc > 0)
- die("TODO: handle switch_to");
- else {
+ if (argc == 1) {
+ /* Is it "rebase other branchname" or "rebase other commit"? */
+ 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))
+ options.head_name = xstrdup(buf.buf);
+ /* If not is it a valid ref (branch or commit)? */
+ else if (!get_oid(branch_name, &options.orig_head))
+ options.head_name = NULL;
+ else
+ die(_("fatal: 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 =
xstrdup_or_null(resolve_ref_unsafe("HEAD", 0, NULL,
branch_name = options.head_name;
} else {
- options.head_name = xstrdup("detached HEAD");
+ free(options.head_name);
+ options.head_name = NULL;
branch_name = "HEAD";
}
if (get_oid("HEAD", &options.orig_head))
die(_("Could not resolve HEAD to a revision"));
+ } else
+ BUG("unexpected number of arguments left to parse");
+
+ if (fork_point > 0) {
+ struct commit *head =
+ lookup_commit_reference(the_repository,
+ &options.orig_head);
+ options.restrict_revision =
+ get_fork_point(options.upstream_name, head);
}
if (read_index(the_repository->index) < 0)
die(_("could not read index"));
+ if (options.autostash) {
+ struct lock_file lock_file = LOCK_INIT;
+ int fd;
+
+ fd = hold_locked_index(&lock_file, 0);
+ refresh_cache(REFRESH_QUIET);
+ if (0 <= fd)
+ update_index_if_able(&the_index, &lock_file);
+ rollback_lock_file(&lock_file);
+
+ if (has_unstaged_changes(1) || has_uncommitted_changes(1)) {
+ const char *autostash =
+ state_dir_path("autostash", &options);
+ struct child_process stash = CHILD_PROCESS_INIT;
+ struct object_id oid;
+ struct commit *head =
+ lookup_commit_reference(the_repository,
+ &options.orig_head);
+
+ argv_array_pushl(&stash.args,
+ "stash", "create", "autostash", NULL);
+ stash.git_cmd = 1;
+ stash.no_stdin = 1;
+ strbuf_reset(&buf);
+ if (capture_command(&stash, &buf, GIT_MAX_HEXSZ))
+ die(_("Cannot autostash"));
+ strbuf_trim_trailing_newline(&buf);
+ if (get_oid(buf.buf, &oid))
+ die(_("Unexpected stash response: '%s'"),
+ buf.buf);
+ strbuf_reset(&buf);
+ strbuf_add_unique_abbrev(&buf, &oid, DEFAULT_ABBREV);
+
+ if (safe_create_leading_directories_const(autostash))
+ die(_("Could not create directory for '%s'"),
+ options.state_dir);
+ write_file(autostash, "%s", oid_to_hex(&oid));
+ printf(_("Created autostash: %s\n"), buf.buf);
+ if (reset_head(&head->object.oid, "reset --hard",
+ NULL, RESET_HEAD_HARD, NULL, NULL) < 0)
+ die(_("could not reset --hard"));
+ printf(_("HEAD is now at %s"),
+ find_unique_abbrev(&head->object.oid,
+ DEFAULT_ABBREV));
+ strbuf_reset(&buf);
+ pp_commit_easy(CMIT_FMT_ONELINE, head, &buf);
+ if (buf.len > 0)
+ printf(" %s", buf.buf);
+ putchar('\n');
+
+ if (discard_index(the_repository->index) < 0 ||
+ read_index(the_repository->index) < 0)
+ die(_("could not read index"));
+ }
+ }
+
if (require_clean_work_tree("rebase",
_("Please commit or stash them."), 1, 1)) {
ret = 1;
*/
if (can_fast_forward(options.onto, &options.orig_head, &merge_base) &&
!is_interactive(&options) && !options.restrict_revision &&
+ options.upstream &&
!oidcmp(&options.upstream->object.oid, &options.onto->object.oid)) {
int flag;
- if (!(options.flags & REBASE_NO_QUIET))
+ if (!(options.flags & REBASE_FORCE)) {
+ /* Lazily switch to the target branch if needed... */
+ if (options.switch_to) {
+ struct object_id oid;
+
+ if (get_oid(options.switch_to, &oid) < 0) {
+ ret = !!error(_("could not parse '%s'"),
+ options.switch_to);
+ goto cleanup;
+ }
+
+ strbuf_reset(&buf);
+ strbuf_addf(&buf, "%s: checkout %s",
+ getenv(GIT_REFLOG_ACTION_ENVIRONMENT),
+ options.switch_to);
+ if (reset_head(&oid, "checkout",
+ options.head_name, 0,
+ NULL, buf.buf) < 0) {
+ ret = !!error(_("could not switch to "
+ "%s"),
+ options.switch_to);
+ goto cleanup;
+ }
+ }
+
+ if (!(options.flags & REBASE_NO_QUIET))
+ ; /* be quiet */
+ else if (!strcmp(branch_name, "HEAD") &&
+ resolve_ref_unsafe("HEAD", 0, NULL, &flag))
+ puts(_("HEAD is up to date."));
+ else
+ printf(_("Current branch %s is up to date.\n"),
+ branch_name);
+ ret = !!finish_rebase(&options);
+ goto cleanup;
+ } else if (!(options.flags & REBASE_NO_QUIET))
; /* be quiet */
else if (!strcmp(branch_name, "HEAD") &&
resolve_ref_unsafe("HEAD", 0, NULL, &flag))
if (options.flags & REBASE_DIFFSTAT) {
struct diff_options opts;
- if (options.flags & REBASE_VERBOSE)
- printf(_("Changes from %s to %s:\n"),
- oid_to_hex(&merge_base),
- oid_to_hex(&options.onto->object.oid));
+ if (options.flags & REBASE_VERBOSE) {
+ if (is_null_oid(&merge_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(&options.onto->object.oid));
+ }
/* We want color (if set), but no pager */
diff_setup(&opts);
DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
opts.detect_rename = DIFF_DETECT_RENAME;
diff_setup_done(&opts);
- diff_tree_oid(&merge_base, &options.onto->object.oid,
- "", &opts);
+ diff_tree_oid(is_null_oid(&merge_base) ?
+ the_hash_algo->empty_tree : &merge_base,
+ &options.onto->object.oid, "", &opts);
diffcore_std(&opts);
diff_flush(&opts);
}
+ if (is_interactive(&options))
+ goto run_rebase;
+
/* Detach HEAD and reset the tree */
if (options.flags & REBASE_NO_QUIET)
printf(_("First, rewinding head to replay your work on top of "
"it...\n"));
- strbuf_addf(&msg, "rebase: checkout %s", options.onto_name);
- if (reset_head(&options.onto->object.oid, "checkout", NULL, 1))
+ strbuf_addf(&msg, "%s: checkout %s",
+ getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name);
+ if (reset_head(&options.onto->object.oid, "checkout", NULL,
+ RESET_HEAD_DETACH, NULL, msg.buf))
die(_("Could not detach HEAD"));
strbuf_release(&msg);
+ /*
+ * If the onto is a proper descendant of the tip of the branch, then
+ * we just fast-forwarded.
+ */
+ strbuf_reset(&msg);
+ if (!oidcmp(&merge_base, &options.orig_head)) {
+ 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));
+ reset_head(NULL, "Fast-forwarded", options.head_name, 0,
+ "HEAD", msg.buf);
+ strbuf_release(&msg);
+ ret = !!finish_rebase(&options);
+ goto cleanup;
+ }
+
strbuf_addf(&revisions, "%s..%s",
options.root ? oid_to_hex(&options.onto->object.oid) :
(options.restrict_revision ?
options.revisions = revisions.buf;
+run_rebase:
ret = !!run_specific_rebase(&options);
cleanup:
strbuf_release(&revisions);
free(options.head_name);
+ free(options.gpg_sign_opt);
+ free(options.cmd);
+ free(squash_onto_name);
return ret;
}