#include "rebase-interactive.h"
static char const * const builtin_rebase_usage[] = {
- N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] "
- "[<upstream>] [<branch>]"),
+ N_("git rebase [-i] [options] [--exec <cmd>] "
+ "[--onto <newbase> | --keep-base] [<upstream> [<branch>]]"),
N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] "
"--root [<branch>]"),
N_("git rebase --continue | --abort | --skip | --edit-todo"),
const char *onto_name;
const char *revisions;
const char *switch_to;
- int root;
+ int root, root_with_onto;
struct object_id *squash_onto;
struct commit *restrict_revision;
int dont_finish_rebase;
char *strategy, *strategy_opts;
struct strbuf git_format_patch_opt;
int reschedule_failed_exec;
+ int use_legacy_rebase;
};
#define REBASE_OPTIONS_INIT { \
flags |= abbreviate_commands ? TODO_LIST_ABBREVIATE_CMDS : 0;
flags |= opts->rebase_merges ? TODO_LIST_REBASE_MERGES : 0;
flags |= opts->rebase_cousins > 0 ? TODO_LIST_REBASE_COUSINS : 0;
+ flags |= opts->root_with_onto ? TODO_LIST_ROOT_WITH_ONTO : 0;
flags |= command == ACTION_SHORTEN_OIDS ? TODO_LIST_SHORTEN_IDS : 0;
switch (command) {
if (argc == 1)
usage_with_options(builtin_rebase_interactive_usage, options);
- argc = parse_options(argc, argv, NULL, options,
+ argc = parse_options(argc, argv, prefix, options,
builtin_rebase_interactive_usage, PARSE_OPT_KEEP_ARGV0);
if (!is_null_oid(&squash_onto))
return !!run_rebase_interactive(&opts, command);
}
-static int use_builtin_rebase(void)
-{
- struct child_process cp = CHILD_PROCESS_INIT;
- struct strbuf out = STRBUF_INIT;
- 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 1;
- }
-
- strbuf_trim(&out);
- ret = !strcmp("true", out.buf);
- strbuf_release(&out);
- return ret;
-}
-
static int is_interactive(struct rebase_options *opts)
{
return opts->type == REBASE_INTERACTIVE ||
delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF);
apply_autostash(opts);
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
/*
* We ignore errors in 'gc --auto', since the
* user should see them.
#define RESET_HEAD_HARD (1<<1)
#define RESET_HEAD_RUN_POST_CHECKOUT_HOOK (1<<2)
#define RESET_HEAD_REFS_ONLY (1<<3)
+#define RESET_ORIG_HEAD (1<<4)
static int reset_head(struct object_id *oid, const char *action,
const char *switch_to_branch, unsigned flags,
unsigned reset_hard = flags & RESET_HEAD_HARD;
unsigned run_hook = flags & RESET_HEAD_RUN_POST_CHECKOUT_HOOK;
unsigned refs_only = flags & RESET_HEAD_REFS_ONLY;
+ unsigned update_orig_head = flags & RESET_ORIG_HEAD;
struct object_id head_oid;
struct tree_desc desc[2] = { { NULL }, { NULL } };
struct lock_file lock = LOCK_INIT;
goto leave_reset_head;
}
- if (!reset_hard && !fill_tree_descriptor(&desc[nr++], &head_oid)) {
+ if (!reset_hard && !fill_tree_descriptor(the_repository, &desc[nr++], &head_oid)) {
ret = error(_("failed to find tree of %s"),
oid_to_hex(&head_oid));
goto leave_reset_head;
}
- if (!fill_tree_descriptor(&desc[nr++], oid)) {
+ if (!fill_tree_descriptor(the_repository, &desc[nr++], oid)) {
ret = error(_("failed to find tree of %s"), oid_to_hex(oid));
goto leave_reset_head;
}
strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase");
prefix_len = msg.len;
- if (!get_oid("ORIG_HEAD", &oid_old_orig))
- old_orig = &oid_old_orig;
- if (!get_oid("HEAD", &oid_orig)) {
- orig = &oid_orig;
- 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);
+ if (update_orig_head) {
+ if (!get_oid("ORIG_HEAD", &oid_old_orig))
+ old_orig = &oid_old_orig;
+ if (!get_oid("HEAD", &oid_orig)) {
+ orig = &oid_orig;
+ 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);
+ }
+
if (!reflog_head) {
strbuf_setlen(&msg, prefix_len);
strbuf_addstr(&msg, "updating HEAD");
detach_head ? REF_NO_DEREF : 0,
UPDATE_REFS_MSG_ON_ERR);
else {
- ret = update_ref(reflog_orig_head, switch_to_branch, oid,
+ ret = update_ref(reflog_head, switch_to_branch, oid,
NULL, 0, UPDATE_REFS_MSG_ON_ERR);
if (!ret)
ret = create_symref("HEAD", switch_to_branch,
}
switch (opts->type) {
- case REBASE_AM:
- backend = "git-rebase--am";
- backend_func = "git_rebase__am";
- break;
case REBASE_PRESERVE_MERGES:
backend = "git-rebase--preserve-merges";
backend_func = "git_rebase__preserve_merges";
}
strbuf_addf(&script_snippet,
- ". git-sh-setup && . git-rebase--common &&"
- " . %s && %s", backend, backend_func);
+ ". git-sh-setup && . %s && %s", backend, backend_func);
argv[0] = script_snippet.buf;
status = run_command_v_opt(argv, RUN_USING_SHELL);
if (git_config_bool(var, value))
opts->flags |= REBASE_DIFFSTAT;
else
- opts->flags &= !REBASE_DIFFSTAT;
+ opts->flags &= ~REBASE_DIFFSTAT;
return 0;
}
return 0;
}
+ if (!strcmp(var, "rebase.usebuiltin")) {
+ opts->use_legacy_rebase = !git_config_bool(var, value);
+ return 0;
+ }
+
return git_default_config(var, value, data);
}
return 1;
}
-static int can_fast_forward(struct commit *onto, struct object_id *head_oid,
- struct object_id *merge_base)
+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 = lookup_commit(the_repository, head_oid);
- struct commit_list *merge_bases;
- int res;
+ struct commit_list *merge_bases = NULL;
+ int res = 0;
if (!head)
- return 0;
+ goto done;
merge_bases = get_merge_bases(onto, head);
- if (merge_bases && !merge_bases->next) {
- oidcpy(merge_base, &merge_bases->item->object.oid);
- res = oideq(merge_base, &onto->object.oid);
- } else {
+ if (!merge_bases || merge_bases->next) {
oidcpy(merge_base, &null_oid);
- res = 0;
+ 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))
+ 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;
+
+ if (!oideq(&onto->object.oid, &merge_bases->item->object.oid))
+ goto done;
+
+ res = 1;
+
+done:
free_commit_list(merge_bases);
return res && is_linear_history(onto, head);
}
struct rebase_options options = REBASE_OPTIONS_INIT;
const char *branch_name;
int ret, flags, total_argc, in_progress = 0;
+ int keep_base = 0;
int ok_to_skip_pre_rebase = 0;
struct strbuf msg = STRBUF_INIT;
struct strbuf revisions = STRBUF_INIT;
struct string_list strategy_options = STRING_LIST_INIT_NODUP;
struct object_id squash_onto;
char *squash_onto_name = NULL;
+ int reschedule_failed_exec = -1;
struct option builtin_rebase_options[] = {
OPT_STRING(0, "onto", &options.onto_name,
N_("revision"),
N_("rebase onto given branch instead of upstream")),
+ OPT_BOOL(0, "keep-base", &keep_base,
+ N_("use the merge-base of upstream and branch as the current base")),
OPT_BOOL(0, "no-verify", &ok_to_skip_pre_rebase,
N_("allow pre-rebase hook to run")),
OPT_NEGBIT('q', "quiet", &options.flags,
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),
+ N_("(DEPRECATED) try to recreate merges instead of "
+ "ignoring them"), REBASE_PRESERVE_MERGES),
OPT_RERERE_AUTOUPDATE(&options.allow_rerere_autoupdate),
OPT_BOOL('k', "keep-empty", &options.keep_empty,
N_("preserve empty commits during rebase")),
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,
+ &reschedule_failed_exec,
N_("automatically re-schedule any `exec` that fails")),
OPT_END(),
};
int i;
- /*
- * NEEDSWORK: Once the builtin rebase has been tested enough
- * and git-legacy-rebase.sh is retired to contrib/, this preamble
- * can be removed.
- */
-
- if (!use_builtin_rebase()) {
- const char *path = mkpath("%s/git-legacy-rebase",
- git_exec_path());
-
- if (sane_execvp(path, (char **)argv) < 0)
- die_errno(_("could not exec %s"), path);
- else
- BUG("sane_execvp() returned???");
- }
-
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(builtin_rebase_usage,
builtin_rebase_options);
- prefix = setup_git_directory();
- trace_repo_setup(prefix);
- setup_work_tree();
-
options.allow_empty_message = 1;
git_config(rebase_config, &options);
+ if (options.use_legacy_rebase ||
+ !git_env_bool("GIT_TEST_REBASE_USE_BUILTIN", -1))
+ warning(_("the rebase.useBuiltin support has been removed!\n"
+ "See its entry in 'git help config' for details."));
+
strbuf_reset(&buf);
strbuf_addf(&buf, "%s/applying", apply_dir());
if(file_exists(buf.buf))
usage_with_options(builtin_rebase_usage,
builtin_rebase_options);
+ if (options.type == REBASE_PRESERVE_MERGES)
+ warning(_("git rebase --preserve-merges is deprecated. "
+ "Use --rebase-merges instead."));
+
+ if (keep_base) {
+ if (options.onto_name)
+ die(_("cannot combine '--keep-base' with '--onto'"));
+ if (options.root)
+ die(_("cannot combine '--keep-base' with '--root'"));
+ }
+
if (action != ACTION_NONE && !in_progress)
die(_("No rebase in progress?"));
setenv(GIT_REFLOG_ACTION_ENVIRONMENT, "rebase", 0);
if (reset_head(NULL, "reset", NULL, RESET_HEAD_HARD,
NULL, NULL) < 0)
die(_("could not discard worktree changes"));
- remove_branch_state(the_repository);
+ remove_branch_state(the_repository, 0);
if (read_basic_state(&options))
exit(1);
goto run_rebase;
NULL, NULL) < 0)
die(_("could not move back to %s"),
oid_to_hex(&options.orig_head));
- remove_branch_state(the_repository);
+ remove_branch_state(the_repository, 0);
ret = !!finish_rebase(&options);
goto cleanup;
}
break;
}
- if (options.reschedule_failed_exec && !is_interactive(&options))
- die(_("%s requires an interactive rebase"), "--reschedule-failed-exec");
+ if (reschedule_failed_exec > 0 && !is_interactive(&options))
+ die(_("--reschedule-failed-exec requires "
+ "--exec or --interactive"));
+ if (reschedule_failed_exec >= 0)
+ options.reschedule_failed_exec = reschedule_failed_exec;
if (options.git_am_opts.argc) {
/* all am options except -q are compatible only with --am */
"'--reschedule-failed-exec'"));
}
- if (options.rebase_merges) {
- if (strategy_options.nr)
- die(_("cannot combine '--rebase-merges' with "
- "'--strategy-option'"));
- if (options.strategy)
- die(_("cannot combine '--rebase-merges' with "
- "'--strategy'"));
- }
-
if (!options.root) {
if (argc < 1) {
struct branch *branch;
options.squash_onto = &squash_onto;
options.onto_name = squash_onto_name =
xstrdup(oid_to_hex(&squash_onto));
- }
+ } else
+ options.root_with_onto = 1;
+
options.upstream_name = NULL;
options.upstream = NULL;
if (argc > 1)
}
/* Make sure the branch to rebase onto is valid. */
- if (!options.onto_name)
+ if (keep_base) {
+ strbuf_reset(&buf);
+ strbuf_addstr(&buf, options.upstream_name);
+ strbuf_addstr(&buf, "...");
+ options.onto_name = xstrdup(buf.buf);
+ } 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)
- die(_("'%s': need exactly one merge base"),
- options.onto_name);
+ if (get_oid_mb(options.onto_name, &merge_base) < 0) {
+ if (keep_base)
+ die(_("'%s': need exactly one merge base with branch"),
+ options.upstream_name);
+ else
+ die(_("'%s': need exactly one merge base"),
+ options.onto_name);
+ }
options.onto = lookup_commit_or_die(&merge_base,
options.onto_name);
} else {
branch_name = options.head_name;
} else {
- free(options.head_name);
- options.head_name = NULL;
+ FREE_AND_NULL(options.head_name);
branch_name = "HEAD";
}
if (get_oid("HEAD", &options.orig_head))
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);
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",
+ if (reset_head(NULL, "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 ||
repo_read_index(the_repository) < 0)
/*
* Check if we are already based on onto with linear history,
- * but this should be done only when upstream and onto are the same
- * and if this is not an interactive rebase.
+ * in which case we could fast-forward without replacing the commits
+ * with new commits recreated by replaying their changes. This
+ * optimization must not be done if this is an interactive rebase.
*/
- 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)) {
+ if (can_fast_forward(options.onto, options.upstream, options.restrict_revision,
+ &options.orig_head, &merge_base) &&
+ !is_interactive(&options)) {
int flag;
if (!(options.flags & REBASE_FORCE)) {
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 | RESET_HEAD_RUN_POST_CHECKOUT_HOOK,
+ RESET_HEAD_DETACH | RESET_ORIG_HEAD |
+ RESET_HEAD_RUN_POST_CHECKOUT_HOOK,
NULL, msg.buf))
die(_("Could not detach HEAD"));
strbuf_release(&msg);
* we just fast-forwarded.
*/
strbuf_reset(&msg);
- if (!oidcmp(&merge_base, &options.orig_head)) {
+ if (oideq(&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);
+ reset_head(NULL, "Fast-forwarded", options.head_name,
+ RESET_HEAD_REFS_ONLY, "HEAD", msg.buf);
strbuf_release(&msg);
ret = !!finish_rebase(&options);
goto cleanup;