#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);
#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 (switch_to_branch && !starts_with(switch_to_branch, "refs/"))
BUG("Not a fully qualified branch: '%s'", switch_to_branch);
- if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0)
- return -1;
+ if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) {
+ ret = -1;
+ goto leave_reset_head;
+ }
- if (!oid) {
- if (get_oid("HEAD", &head_oid)) {
- rollback_lock_file(&lock);
- return error(_("could not determine HEAD revision"));
- }
- oid = &head_oid;
+ 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"));
+ if (repo_read_index_unmerged(the_repository) < 0) {
+ 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);
+ prime_cache_tree(the_repository, 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");
reflog_head = msg.buf;
}
if (!switch_to_branch)
- ret = update_ref(reflog_head, "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);
UPDATE_REFS_MSG_ON_ERR);
}
+leave_reset_head:
strbuf_release(&msg);
+ rollback_lock_file(&lock);
+ while (nr)
+ free((void *)desc[--nr].buffer);
return ret;
}
{
struct rebase_options *opts = opt->value;
+ BUG_ON_OPT_NEG(unset);
+ BUG_ON_OPT_ARG(arg);
+
if (!is_interactive(opts))
opts->type = REBASE_MERGE;
{
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;
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 = {
"them"), REBASE_PRESERVE_MERGES),
OPT_BOOL(0, "rerere-autoupdate",
&options.allow_rerere_autoupdate,
- N_("allow rerere to update index with resolved "
+ N_("allow rerere to update index with resolved "
"conflict")),
OPT_BOOL('k', "keep-empty", &options.keep_empty,
N_("preserve empty commits during rebase")),
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 "
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)
+ if (repo_read_index(the_repository) < 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);
+ repo_update_index_if_able(the_repository, &lock_file);
rollback_lock_file(&lock_file);
- if (has_unstaged_changes(1)) {
+ if (has_unstaged_changes(the_repository, 1)) {
puts(_("You must edit all merge conflicts and then\n"
"mark them as resolved using git add"));
exit(1);
struct string_list merge_rr = STRING_LIST_INIT_DUP;
options.action = "skip";
+ set_reflog_action(&options);
- rerere_clear(&merge_rr);
+ rerere_clear(the_repository, &merge_rr);
string_list_clear(&merge_rr, 1);
- if (reset_head(NULL, "reset", NULL, 0, NULL, NULL) < 0)
+ if (reset_head(NULL, "reset", NULL, RESET_HEAD_HARD,
+ NULL, NULL) < 0)
die(_("could not discard worktree changes"));
+ remove_branch_state(the_repository);
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);
+ rerere_clear(the_repository, &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, 0, NULL, NULL) < 0)
+ 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(the_repository);
ret = finish_rebase(&options);
goto cleanup;
}
get_fork_point(options.upstream_name, head);
}
- if (read_index(the_repository->index) < 0)
+ if (repo_read_index(the_repository) < 0)
die(_("could not read index"));
if (options.autostash) {
fd = hold_locked_index(&lock_file, 0);
refresh_cache(REFRESH_QUIET);
if (0 <= fd)
- update_index_if_able(&the_index, &lock_file);
+ repo_update_index_if_able(the_repository, &lock_file);
rollback_lock_file(&lock_file);
- if (has_unstaged_changes(1) || has_uncommitted_changes(1)) {
+ if (has_unstaged_changes(the_repository, 1) ||
+ has_uncommitted_changes(the_repository, 1)) {
const char *autostash =
state_dir_path("autostash", &options);
struct child_process stash = CHILD_PROCESS_INIT;
write_file(autostash, "%s", oid_to_hex(&oid));
printf(_("Created autostash: %s\n"), buf.buf);
if (reset_head(&head->object.oid, "reset --hard",
- NULL, 0, NULL, NULL) < 0)
+ NULL, RESET_HEAD_HARD, NULL, NULL) < 0)
die(_("could not reset --hard"));
printf(_("HEAD is now at %s"),
find_unique_abbrev(&head->object.oid,
putchar('\n');
if (discard_index(the_repository->index) < 0 ||
- read_index(the_repository->index) < 0)
+ repo_read_index(the_repository) < 0)
die(_("could not read index"));
}
}
- if (require_clean_work_tree("rebase",
+ if (require_clean_work_tree(the_repository, "rebase",
_("Please commit or stash them."), 1, 1)) {
ret = 1;
goto cleanup;
}
strbuf_reset(&buf);
- strbuf_addf(&buf, "rebase: checkout %s",
+ strbuf_addf(&buf, "%s: checkout %s",
+ getenv(GIT_REFLOG_ACTION_ENVIRONMENT),
options.switch_to);
if (reset_head(&oid, "checkout",
options.head_name, 0,
- NULL, NULL) < 0) {
+ NULL, buf.buf) < 0) {
ret = !!error(_("could not switch to "
"%s"),
options.switch_to);
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);
}
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,
- NULL, msg.buf))
+ 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);
*/
strbuf_reset(&msg);
if (!oidcmp(&merge_base, &options.orig_head)) {
- printf(_("Fast-forwarded %s to %s. \n"),
+ 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",