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Diffstat (limited to 'builtin/rebase.c')
-rw-r--r--builtin/rebase.c612
1 files changed, 247 insertions, 365 deletions
diff --git a/builtin/rebase.c b/builtin/rebase.c
index 8081741f8a..8cbfc5106e 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -27,6 +27,9 @@
#include "branch.h"
#include "sequencer.h"
#include "rebase-interactive.h"
+#include "reset.h"
+
+#define DEFAULT_REFLOG_ACTION "rebase"
static char const * const builtin_rebase_usage[] = {
N_("git rebase [-i] [options] [--exec <cmd>] "
@@ -44,14 +47,22 @@ static GIT_PATH_FUNC(merge_dir, "rebase-merge")
enum rebase_type {
REBASE_UNSPECIFIED = -1,
- REBASE_AM,
+ REBASE_APPLY,
REBASE_MERGE,
- REBASE_INTERACTIVE,
REBASE_PRESERVE_MERGES
};
+enum empty_type {
+ EMPTY_UNSPECIFIED = -1,
+ EMPTY_DROP,
+ EMPTY_KEEP,
+ EMPTY_ASK
+};
+
struct rebase_options {
enum rebase_type type;
+ enum empty_type empty;
+ const char *default_backend;
const char *state_dir;
struct commit *upstream;
const char *upstream_name;
@@ -88,10 +99,14 @@ struct rebase_options {
struct strbuf git_format_patch_opt;
int reschedule_failed_exec;
int use_legacy_rebase;
+ int reapply_cherry_picks;
};
#define REBASE_OPTIONS_INIT { \
.type = REBASE_UNSPECIFIED, \
+ .empty = EMPTY_UNSPECIFIED, \
+ .keep_empty = 1, \
+ .default_backend = "merge", \
.flags = REBASE_NO_QUIET, \
.git_am_opts = ARGV_ARRAY_INIT, \
.git_format_patch_opt = STRBUF_INIT \
@@ -110,6 +125,9 @@ static struct replay_opts get_replay_opts(const struct rebase_options *opts)
replay.allow_rerere_auto = opts->allow_rerere_autoupdate;
replay.allow_empty = 1;
replay.allow_empty_message = opts->allow_empty_message;
+ replay.drop_redundant_commits = (opts->empty == EMPTY_DROP);
+ replay.keep_redundant_commits = (opts->empty == EMPTY_KEEP);
+ replay.quiet = !(opts->flags & REBASE_NO_QUIET);
replay.verbose = opts->flags & REBASE_VERBOSE;
replay.reschedule_failed_exec = opts->reschedule_failed_exec;
replay.gpg_sign = xstrdup_or_null(opts->gpg_sign_opt);
@@ -246,21 +264,17 @@ static int edit_todo_file(unsigned flags)
}
static int get_revision_ranges(struct commit *upstream, struct commit *onto,
- const char **head_hash,
+ struct object_id *orig_head, const char **head_hash,
char **revisions, char **shortrevisions)
{
struct commit *base_rev = upstream ? upstream : onto;
const char *shorthead;
- struct object_id orig_head;
-
- if (get_oid("HEAD", &orig_head))
- return error(_("no HEAD?"));
- *head_hash = find_unique_abbrev(&orig_head, GIT_MAX_HEXSZ);
+ *head_hash = find_unique_abbrev(orig_head, GIT_MAX_HEXSZ);
*revisions = xstrfmt("%s...%s", oid_to_hex(&base_rev->object.oid),
*head_hash);
- shorthead = find_unique_abbrev(&orig_head, DEFAULT_ABBREV);
+ shorthead = find_unique_abbrev(orig_head, DEFAULT_ABBREV);
if (upstream) {
const char *shortrev;
@@ -314,12 +328,8 @@ 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 (prepare_branch_to_be_rebased(the_repository, &replay,
- opts->switch_to))
- return -1;
-
- if (get_revision_ranges(opts->upstream, opts->onto, &head_hash,
- &revisions, &shortrevisions))
+ if (get_revision_ranges(opts->upstream, opts->onto, &opts->orig_head,
+ &head_hash, &revisions, &shortrevisions))
return -1;
if (init_basic_state(&replay,
@@ -337,8 +347,8 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags)
argv_array_pushl(&make_script_args, "", revisions, NULL);
if (opts->restrict_revision)
- argv_array_push(&make_script_args,
- oid_to_hex(&opts->restrict_revision->object.oid));
+ argv_array_pushf(&make_script_args, "^%s",
+ oid_to_hex(&opts->restrict_revision->object.oid));
ret = sequencer_make_script(the_repository, &todo_list.buf,
make_script_args.argc, make_script_args.argv,
@@ -367,7 +377,7 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags)
return ret;
}
-static int run_rebase_interactive(struct rebase_options *opts,
+static int run_sequencer_rebase(struct rebase_options *opts,
enum action command)
{
unsigned flags = 0;
@@ -381,6 +391,7 @@ static int run_rebase_interactive(struct rebase_options *opts,
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;
+ flags |= opts->reapply_cherry_picks ? TODO_LIST_REAPPLY_CHERRY_PICKS : 0;
switch (command) {
case ACTION_NONE: {
@@ -439,6 +450,20 @@ static int run_rebase_interactive(struct rebase_options *opts,
return ret;
}
+static void imply_merge(struct rebase_options *opts, const char *option);
+static int parse_opt_keep_empty(const struct option *opt, const char *arg,
+ int unset)
+{
+ struct rebase_options *opts = opt->value;
+
+ BUG_ON_OPT_ARG(arg);
+
+ imply_merge(opts, unset ? "--no-keep-empty" : "--keep-empty");
+ opts->keep_empty = !unset;
+ opts->type = REBASE_MERGE;
+ return 0;
+}
+
static const char * const builtin_rebase_interactive_usage[] = {
N_("git rebase--interactive [<options>]"),
NULL
@@ -452,9 +477,13 @@ int cmd_rebase__interactive(int argc, const char **argv, const char *prefix)
struct option options[] = {
OPT_NEGBIT(0, "ff", &opts.flags, N_("allow fast-forward"),
REBASE_FORCE),
- OPT_BOOL(0, "keep-empty", &opts.keep_empty, N_("keep empty commits")),
- OPT_BOOL(0, "allow-empty-message", &opts.allow_empty_message,
- N_("allow commits with empty messages")),
+ { OPTION_CALLBACK, 'k', "keep-empty", &options, NULL,
+ N_("keep commits which start empty"),
+ PARSE_OPT_NOARG | PARSE_OPT_HIDDEN,
+ parse_opt_keep_empty },
+ OPT_BOOL_F(0, "allow-empty-message", &opts.allow_empty_message,
+ N_("allow commits with empty messages"),
+ PARSE_OPT_HIDDEN),
OPT_BOOL(0, "rebase-merges", &opts.rebase_merges, N_("rebase merge commits")),
OPT_BOOL(0, "rebase-cousins", &opts.rebase_cousins,
N_("keep original branch points of cousins")),
@@ -524,28 +553,26 @@ int cmd_rebase__interactive(int argc, const char **argv, const char *prefix)
warning(_("--[no-]rebase-cousins has no effect without "
"--rebase-merges"));
- return !!run_rebase_interactive(&opts, command);
+ return !!run_sequencer_rebase(&opts, command);
}
-static int is_interactive(struct rebase_options *opts)
+static int is_merge(struct rebase_options *opts)
{
- return opts->type == REBASE_INTERACTIVE ||
+ return opts->type == REBASE_MERGE ||
opts->type == REBASE_PRESERVE_MERGES;
}
-static void imply_interactive(struct rebase_options *opts, const char *option)
+static void imply_merge(struct rebase_options *opts, const char *option)
{
switch (opts->type) {
- case REBASE_AM:
- die(_("%s requires an interactive rebase"), option);
+ case REBASE_APPLY:
+ die(_("%s requires the merge backend"), option);
break;
- case REBASE_INTERACTIVE:
+ case REBASE_MERGE:
case REBASE_PRESERVE_MERGES:
break;
- case REBASE_MERGE:
- /* we now implement --merge via --interactive */
default:
- opts->type = REBASE_INTERACTIVE; /* implied */
+ opts->type = REBASE_MERGE; /* implied */
break;
}
}
@@ -566,15 +593,6 @@ static const char *state_dir_path(const char *filename, struct rebase_options *o
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)
{
@@ -582,8 +600,10 @@ static int read_basic_state(struct rebase_options *opts)
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))
+ if (!read_oneliner(&head_name, state_dir_path("head-name", opts),
+ READ_ONELINER_WARN_MISSING) ||
+ !read_oneliner(&buf, state_dir_path("onto", opts),
+ READ_ONELINER_WARN_MISSING))
return -1;
opts->head_name = starts_with(head_name.buf, "refs/") ?
xstrdup(head_name.buf) : NULL;
@@ -599,9 +619,11 @@ static int read_basic_state(struct rebase_options *opts)
*/
strbuf_reset(&buf);
if (file_exists(state_dir_path("orig-head", opts))) {
- if (read_one(state_dir_path("orig-head", opts), &buf))
+ if (!read_oneliner(&buf, state_dir_path("orig-head", opts),
+ READ_ONELINER_WARN_MISSING))
return -1;
- } else if (read_one(state_dir_path("head", opts), &buf))
+ } else if (!read_oneliner(&buf, state_dir_path("head", opts),
+ READ_ONELINER_WARN_MISSING))
return -1;
if (get_oid(buf.buf, &opts->orig_head))
return error(_("invalid orig-head: '%s'"), buf.buf);
@@ -621,8 +643,8 @@ static int read_basic_state(struct rebase_options *opts)
if (file_exists(state_dir_path("allow_rerere_autoupdate", opts))) {
strbuf_reset(&buf);
- if (read_one(state_dir_path("allow_rerere_autoupdate", opts),
- &buf))
+ if (!read_oneliner(&buf, state_dir_path("allow_rerere_autoupdate", opts),
+ READ_ONELINER_WARN_MISSING))
return -1;
if (!strcmp(buf.buf, "--rerere-autoupdate"))
opts->allow_rerere_autoupdate = RERERE_AUTOUPDATE;
@@ -635,8 +657,8 @@ static int read_basic_state(struct rebase_options *opts)
if (file_exists(state_dir_path("gpg_sign_opt", opts))) {
strbuf_reset(&buf);
- if (read_one(state_dir_path("gpg_sign_opt", opts),
- &buf))
+ if (!read_oneliner(&buf, state_dir_path("gpg_sign_opt", opts),
+ READ_ONELINER_WARN_MISSING))
return -1;
free(opts->gpg_sign_opt);
opts->gpg_sign_opt = xstrdup(buf.buf);
@@ -644,7 +666,8 @@ static int read_basic_state(struct rebase_options *opts)
if (file_exists(state_dir_path("strategy", opts))) {
strbuf_reset(&buf);
- if (read_one(state_dir_path("strategy", opts), &buf))
+ if (!read_oneliner(&buf, state_dir_path("strategy", opts),
+ READ_ONELINER_WARN_MISSING))
return -1;
free(opts->strategy);
opts->strategy = xstrdup(buf.buf);
@@ -652,7 +675,8 @@ static int read_basic_state(struct rebase_options *opts)
if (file_exists(state_dir_path("strategy_opts", opts))) {
strbuf_reset(&buf);
- if (read_one(state_dir_path("strategy_opts", opts), &buf))
+ if (!read_oneliner(&buf, state_dir_path("strategy_opts", opts),
+ READ_ONELINER_WARN_MISSING))
return -1;
free(opts->strategy_opts);
opts->strategy_opts = xstrdup(buf.buf);
@@ -671,8 +695,8 @@ static int rebase_write_basic_state(struct rebase_options *opts)
opts->onto ? oid_to_hex(&opts->onto->object.oid) : "");
write_file(state_dir_path("orig-head", opts), "%s",
oid_to_hex(&opts->orig_head));
- write_file(state_dir_path("quiet", opts), "%s",
- opts->flags & REBASE_NO_QUIET ? "" : "t");
+ if (!(opts->flags & REBASE_NO_QUIET))
+ write_file(state_dir_path("quiet", opts), "%s", "");
if (opts->flags & REBASE_VERBOSE)
write_file(state_dir_path("verbose", opts), "%s", "");
if (opts->strategy)
@@ -695,51 +719,6 @@ static int rebase_write_basic_state(struct rebase_options *opts)
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;
@@ -747,14 +726,14 @@ static int finish_rebase(struct rebase_options *opts)
int ret = 0;
delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF);
- apply_autostash(opts);
+ apply_autostash(state_dir_path("autostash", opts));
close_object_store(the_repository->objects);
/*
* We ignore errors in 'gc --auto', since the
* user should see them.
*/
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
- if (opts->type == REBASE_INTERACTIVE) {
+ if (opts->type == REBASE_MERGE) {
struct replay_opts replay = REPLAY_OPTS_INIT;
replay.action = REPLAY_INTERACTIVE_REBASE;
@@ -792,143 +771,6 @@ static void add_var(struct strbuf *buf, const char *name, const char *value)
}
}
-#define GIT_REFLOG_ACTION_ENVIRONMENT "GIT_REFLOG_ACTION"
-
-#define RESET_HEAD_DETACH (1<<0)
-#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,
- const char *reflog_orig_head, const char *reflog_head)
-{
- unsigned detach_head = flags & RESET_HEAD_DETACH;
- 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;
- struct unpack_trees_options unpack_tree_opts;
- struct tree *tree;
- const char *reflog_action;
- struct strbuf msg = STRBUF_INIT;
- size_t prefix_len;
- struct object_id *orig = NULL, oid_orig,
- *old_orig = NULL, oid_old_orig;
- 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 (!refs_only && 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;
-
- if (refs_only)
- goto reset_head_refs;
-
- 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 = 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 (repo_read_index_unmerged(the_repository) < 0) {
- ret = error(_("could not read index"));
- goto leave_reset_head;
- }
-
- 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(the_repository, &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, the_repository->index, tree);
-
- if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0) {
- ret = error(_("could not write index"));
- goto leave_reset_head;
- }
-
-reset_head_refs:
- reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT);
- strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase");
- prefix_len = msg.len;
-
- 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");
- reflog_head = msg.buf;
- }
- if (!switch_to_branch)
- ret = update_ref(reflog_head, "HEAD", oid, orig,
- detach_head ? REF_NO_DEREF : 0,
- UPDATE_REFS_MSG_ON_ERR);
- else {
- 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,
- reflog_head);
- }
- if (run_hook)
- run_hook_le(NULL, "post-checkout",
- oid_to_hex(orig ? orig : &null_oid),
- oid_to_hex(oid), "1", NULL);
-
-leave_reset_head:
- strbuf_release(&msg);
- rollback_lock_file(&lock);
- while (nr)
- free((void *)desc[--nr].buffer);
- return ret;
-}
-
static int move_to_original_branch(struct rebase_options *opts)
{
struct strbuf orig_head_reflog = STRBUF_INIT, head_reflog = STRBUF_INIT;
@@ -944,8 +786,10 @@ static int move_to_original_branch(struct rebase_options *opts)
opts->head_name, oid_to_hex(&opts->onto->object.oid));
strbuf_addf(&head_reflog, "rebase finished: returning to %s",
opts->head_name);
- ret = reset_head(NULL, "", opts->head_name, RESET_HEAD_REFS_ONLY,
- orig_head_reflog.buf, head_reflog.buf);
+ ret = reset_head(the_repository, NULL, "", opts->head_name,
+ RESET_HEAD_REFS_ONLY,
+ orig_head_reflog.buf, head_reflog.buf,
+ DEFAULT_REFLOG_ACTION);
strbuf_release(&orig_head_reflog);
strbuf_release(&head_reflog);
@@ -1033,8 +877,9 @@ static int run_am(struct rebase_options *opts)
free(rebased_patches);
argv_array_clear(&am.args);
- reset_head(&opts->orig_head, "checkout", opts->head_name, 0,
- "HEAD", NULL);
+ reset_head(the_repository, &opts->orig_head, "checkout",
+ opts->head_name, 0,
+ "HEAD", NULL, DEFAULT_REFLOG_ACTION);
error(_("\ngit encountered an error while preparing the "
"patches to replay\n"
"these revisions:\n"
@@ -1087,8 +932,8 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
int status;
const char *backend, *backend_func;
- if (opts->type == REBASE_INTERACTIVE) {
- /* Run builtin interactive rebase */
+ if (opts->type == REBASE_MERGE) {
+ /* Run sequencer-based rebase */
setenv("GIT_CHERRY_PICK_HELP", resolvemsg, 1);
if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) {
setenv("GIT_SEQUENCE_EDITOR", ":", 1);
@@ -1101,11 +946,11 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
opts->gpg_sign_opt = tmp;
}
- status = run_rebase_interactive(opts, action);
+ status = run_sequencer_rebase(opts, action);
goto finished_rebase;
}
- if (opts->type == REBASE_AM) {
+ if (opts->type == REBASE_APPLY) {
status = run_am(opts);
goto finished_rebase;
}
@@ -1125,8 +970,6 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
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");
sq_quote_argv_pretty(&buf, opts->git_am_opts.argv);
add_var(&script_snippet, "git_am_opt", buf.buf);
strbuf_release(&buf);
@@ -1162,7 +1005,7 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
add_var(&script_snippet, "git_format_patch_opt",
opts->git_format_patch_opt.buf);
- if (is_interactive(opts) &&
+ if (is_merge(opts) &&
!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) {
strbuf_addstr(&script_snippet,
"GIT_SEQUENCE_EDITOR=:; export GIT_SEQUENCE_EDITOR; ");
@@ -1187,15 +1030,15 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
finished_rebase:
if (opts->dont_finish_rebase)
; /* do nothing */
- else if (opts->type == REBASE_INTERACTIVE)
- ; /* interactive rebase cleans up after itself */
+ else if (opts->type == REBASE_MERGE)
+ ; /* merge backend 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(opts);
+ apply_autostash(state_dir_path("autostash", opts));
strbuf_addstr(&dir, opts->state_dir);
remove_dir_recursively(&dir, 0);
strbuf_release(&dir);
@@ -1246,6 +1089,10 @@ static int rebase_config(const char *var, const char *value, void *data)
return 0;
}
+ if (!strcmp(var, "rebase.backend")) {
+ return git_config_string(&opts->default_backend, var, value);
+ }
+
return git_default_config(var, value, data);
}
@@ -1309,6 +1156,18 @@ done:
return res && is_linear_history(onto, head);
}
+static int parse_opt_am(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_APPLY;
+
+ return 0;
+}
+
/* -i followed by -m is still -i */
static int parse_opt_merge(const struct option *opt, const char *arg, int unset)
{
@@ -1317,7 +1176,7 @@ static int parse_opt_merge(const struct option *opt, const char *arg, int unset)
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
- if (!is_interactive(opts))
+ if (!is_merge(opts))
opts->type = REBASE_MERGE;
return 0;
@@ -1332,12 +1191,35 @@ static int parse_opt_interactive(const struct option *opt, const char *arg,
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
- opts->type = REBASE_INTERACTIVE;
+ opts->type = REBASE_MERGE;
opts->flags |= REBASE_INTERACTIVE_EXPLICIT;
return 0;
}
+static enum empty_type parse_empty_value(const char *value)
+{
+ if (!strcasecmp(value, "drop"))
+ return EMPTY_DROP;
+ else if (!strcasecmp(value, "keep"))
+ return EMPTY_KEEP;
+ else if (!strcasecmp(value, "ask"))
+ return EMPTY_ASK;
+
+ die(_("unrecognized empty type '%s'; valid values are \"drop\", \"keep\", and \"ask\"."), value);
+}
+
+static int parse_opt_empty(const struct option *opt, const char *arg, int unset)
+{
+ struct rebase_options *options = opt->value;
+ enum empty_type value = parse_empty_value(arg);
+
+ BUG_ON_OPT_NEG(unset);
+
+ options->empty = value;
+ return 0;
+}
+
static void NORETURN error_on_missing_default_upstream(void)
{
struct branch *current_branch = branch_get(NULL);
@@ -1373,14 +1255,14 @@ static void set_reflog_action(struct rebase_options *options)
const char *env;
struct strbuf buf = STRBUF_INIT;
- if (!is_interactive(options))
+ 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 -i (%s)", options->action);
+ strbuf_addf(&buf, "rebase (%s)", options->action);
setenv(GIT_REFLOG_ACTION_ENVIRONMENT, buf.buf, 1);
strbuf_release(&buf);
}
@@ -1397,7 +1279,6 @@ static int check_exec_cmd(const char *cmd)
return 0;
}
-
int cmd_rebase(int argc, const char **argv, const char *prefix)
{
struct rebase_options options = REBASE_OPTIONS_INIT;
@@ -1418,6 +1299,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
struct object_id squash_onto;
char *squash_onto_name = NULL;
int reschedule_failed_exec = -1;
+ int allow_preemptive_ff = 1;
struct option builtin_rebase_options[] = {
OPT_STRING(0, "onto", &options.onto_name,
N_("revision"),
@@ -1428,7 +1310,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
N_("allow pre-rebase hook to run")),
OPT_NEGBIT('q', "quiet", &options.flags,
N_("be quiet. implies --no-stat"),
- REBASE_NO_QUIET| REBASE_VERBOSE | REBASE_DIFFSTAT),
+ REBASE_NO_QUIET | REBASE_VERBOSE | REBASE_DIFFSTAT),
OPT_BIT('v', "verbose", &options.flags,
N_("display a diffstat of what changed upstream"),
REBASE_NO_QUIET | REBASE_VERBOSE | REBASE_DIFFSTAT),
@@ -1469,6 +1351,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
OPT_CMDMODE(0, "show-current-patch", &action,
N_("show the patch file being applied or merged"),
ACTION_SHOW_CURRENT_PATCH),
+ { OPTION_CALLBACK, 0, "apply", &options, NULL,
+ N_("use apply strategies to rebase"),
+ PARSE_OPT_NOARG | PARSE_OPT_NONEG,
+ parse_opt_am },
{ OPTION_CALLBACK, 'm', "merge", &options, NULL,
N_("use merging strategies to rebase"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
@@ -1482,22 +1368,27 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
"ignoring them"),
REBASE_PRESERVE_MERGES, PARSE_OPT_HIDDEN),
OPT_RERERE_AUTOUPDATE(&options.allow_rerere_autoupdate),
- OPT_BOOL('k', "keep-empty", &options.keep_empty,
- N_("preserve empty commits during rebase")),
+ OPT_CALLBACK_F(0, "empty", &options, "{drop,keep,ask}",
+ N_("how to handle commits that become empty"),
+ PARSE_OPT_NONEG, parse_opt_empty),
+ { OPTION_CALLBACK, 'k', "keep-empty", &options, NULL,
+ N_("keep commits which start empty"),
+ PARSE_OPT_NOARG | PARSE_OPT_HIDDEN,
+ parse_opt_keep_empty },
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_AUTOSTASH(&options.autostash),
OPT_STRING_LIST('x', "exec", &exec, N_("exec"),
N_("add exec lines after each commit of the "
"editable list")),
- OPT_BOOL(0, "allow-empty-message",
- &options.allow_empty_message,
- N_("allow rebasing commits with empty messages")),
+ OPT_BOOL_F(0, "allow-empty-message",
+ &options.allow_empty_message,
+ N_("allow rebasing commits with empty messages"),
+ PARSE_OPT_HIDDEN),
{OPTION_STRING, 'r', "rebase-merges", &rebase_merges,
N_("mode"),
N_("try to rebase merges instead of skipping them"),
@@ -1515,6 +1406,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
OPT_BOOL(0, "reschedule-failed-exec",
&reschedule_failed_exec,
N_("automatically re-schedule any `exec` that fails")),
+ OPT_BOOL(0, "reapply-cherry-picks", &options.reapply_cherry_picks,
+ N_("apply all changes, even those already present upstream")),
OPT_END(),
};
int i;
@@ -1525,6 +1418,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
options.allow_empty_message = 1;
git_config(rebase_config, &options);
+ /* options.gpg_sign_opt will be either "-S" or NULL */
+ gpg_sign = options.gpg_sign_opt ? "" : NULL;
+ FREE_AND_NULL(options.gpg_sign_opt);
if (options.use_legacy_rebase ||
!git_env_bool("GIT_TEST_REBASE_USE_BUILTIN", -1))
@@ -1537,7 +1433,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
die(_("It looks like 'git am' is in progress. Cannot rebase."));
if (is_directory(apply_dir())) {
- options.type = REBASE_AM;
+ options.type = REBASE_APPLY;
options.state_dir = apply_dir();
} else if (is_directory(merge_dir())) {
strbuf_reset(&buf);
@@ -1549,7 +1445,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
strbuf_reset(&buf);
strbuf_addf(&buf, "%s/interactive", merge_dir());
if(file_exists(buf.buf)) {
- options.type = REBASE_INTERACTIVE;
+ options.type = REBASE_MERGE;
options.flags |= REBASE_INTERACTIVE_EXPLICIT;
} else
options.type = REBASE_MERGE;
@@ -1585,16 +1481,19 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
die(_("cannot combine '--keep-base' with '--root'"));
}
+ if (options.root && fork_point > 0)
+ die(_("cannot combine '--root' with '--fork-point'"));
+
if (action != ACTION_NONE && !in_progress)
die(_("No rebase in progress?"));
setenv(GIT_REFLOG_ACTION_ENVIRONMENT, "rebase", 0);
- if (action == ACTION_EDIT_TODO && !is_interactive(&options))
+ if (action == ACTION_EDIT_TODO && !is_merge(&options))
die(_("The --edit-todo action can only be used during "
"interactive rebase."));
if (trace2_is_enabled()) {
- if (is_interactive(&options))
+ if (is_merge(&options))
trace2_cmd_mode("interactive");
else if (exec.nr)
trace2_cmd_mode("interactive-exec");
@@ -1642,8 +1541,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
rerere_clear(the_repository, &merge_rr);
string_list_clear(&merge_rr, 1);
- if (reset_head(NULL, "reset", NULL, RESET_HEAD_HARD,
- NULL, NULL) < 0)
+ if (reset_head(the_repository, NULL, "reset", NULL, RESET_HEAD_HARD,
+ NULL, NULL, DEFAULT_REFLOG_ACTION) < 0)
die(_("could not discard worktree changes"));
remove_branch_state(the_repository, 0);
if (read_basic_state(&options))
@@ -1660,9 +1559,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
if (read_basic_state(&options))
exit(1);
- if (reset_head(&options.orig_head, "reset",
+ if (reset_head(the_repository, &options.orig_head, "reset",
options.head_name, RESET_HEAD_HARD,
- NULL, NULL) < 0)
+ NULL, NULL, DEFAULT_REFLOG_ACTION) < 0)
die(_("could not move back to %s"),
oid_to_hex(&options.orig_head));
remove_branch_state(the_repository, 0);
@@ -1670,7 +1569,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
goto cleanup;
}
case ACTION_QUIT: {
- if (options.type == REBASE_INTERACTIVE) {
+ save_autostash(state_dir_path("autostash", &options));
+ if (options.type == REBASE_MERGE) {
struct replay_opts replay = REPLAY_OPTS_INIT;
replay.action = REPLAY_INTERACTIVE_REBASE;
@@ -1719,13 +1619,20 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
state_dir_base, cmd_live_rebase, buf.buf);
}
+ if ((options.flags & REBASE_INTERACTIVE_EXPLICIT) ||
+ (action != ACTION_NONE) ||
+ (exec.nr > 0) ||
+ options.autosquash) {
+ allow_preemptive_ff = 0;
+ }
+
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;
+ allow_preemptive_ff = 0;
else if (skip_prefix(option, "-C", &p)) {
while (*p)
if (!isdigit(*(p++)))
@@ -1745,18 +1652,19 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
if (!(options.flags & REBASE_NO_QUIET))
argv_array_push(&options.git_am_opts, "-q");
- if (options.keep_empty)
- imply_interactive(&options, "--keep-empty");
+ if (options.empty != EMPTY_UNSPECIFIED)
+ imply_merge(&options, "--empty");
+
+ if (options.reapply_cherry_picks)
+ imply_merge(&options, "--reapply-cherry-picks");
- if (gpg_sign) {
- free(options.gpg_sign_opt);
+ if (gpg_sign)
options.gpg_sign_opt = xstrfmt("-S%s", gpg_sign);
- }
if (exec.nr) {
int i;
- imply_interactive(&options, "--exec");
+ imply_merge(&options, "--exec");
strbuf_reset(&buf);
for (i = 0; i < exec.nr; i++)
@@ -1772,7 +1680,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
else if (strcmp("no-rebase-cousins", rebase_merges))
die(_("Unknown mode: %s"), rebase_merges);
options.rebase_merges = 1;
- imply_interactive(&options, "--rebase-merges");
+ imply_merge(&options, "--rebase-merges");
}
if (strategy_options.nr) {
@@ -1791,10 +1699,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
if (options.strategy) {
options.strategy = xstrdup(options.strategy);
switch (options.type) {
- case REBASE_AM:
+ case REBASE_APPLY:
die(_("--strategy requires --merge or --interactive"));
case REBASE_MERGE:
- case REBASE_INTERACTIVE:
case REBASE_PRESERVE_MERGES:
/* compatible */
break;
@@ -1807,47 +1714,65 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
}
if (options.type == REBASE_MERGE)
- imply_interactive(&options, "--merge");
+ imply_merge(&options, "--merge");
if (options.root && !options.onto_name)
- imply_interactive(&options, "--root without --onto");
+ imply_merge(&options, "--root without --onto");
if (isatty(2) && options.flags & REBASE_NO_QUIET)
strbuf_addstr(&options.git_format_patch_opt, " --progress");
+ if (options.git_am_opts.argc || options.type == REBASE_APPLY) {
+ /* all am options except -q are compatible only with --apply */
+ for (i = options.git_am_opts.argc - 1; i >= 0; i--)
+ if (strcmp(options.git_am_opts.argv[i], "-q"))
+ break;
+
+ if (i >= 0) {
+ if (is_merge(&options))
+ die(_("cannot combine apply options with "
+ "merge options"));
+ else
+ options.type = REBASE_APPLY;
+ }
+ }
+
+ if (options.type == REBASE_UNSPECIFIED) {
+ if (!strcmp(options.default_backend, "merge"))
+ imply_merge(&options, "--merge");
+ else if (!strcmp(options.default_backend, "apply"))
+ options.type = REBASE_APPLY;
+ else
+ die(_("Unknown rebase backend: %s"),
+ options.default_backend);
+ }
+
switch (options.type) {
case REBASE_MERGE:
- case REBASE_INTERACTIVE:
case REBASE_PRESERVE_MERGES:
options.state_dir = merge_dir();
break;
- case REBASE_AM:
+ case REBASE_APPLY:
options.state_dir = apply_dir();
break;
default:
- /* the default rebase backend is `--am` */
- options.type = REBASE_AM;
- options.state_dir = apply_dir();
- break;
+ BUG("options.type was just set above; should be unreachable.");
}
- if (reschedule_failed_exec > 0 && !is_interactive(&options))
+ if (options.empty == EMPTY_UNSPECIFIED) {
+ if (options.flags & REBASE_INTERACTIVE_EXPLICIT)
+ options.empty = EMPTY_ASK;
+ else if (exec.nr > 0)
+ options.empty = EMPTY_KEEP;
+ else
+ options.empty = EMPTY_DROP;
+ }
+ if (reschedule_failed_exec > 0 && !is_merge(&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 */
- 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(_("cannot combine am options with either "
- "interactive or merge options"));
- }
-
if (options.signoff) {
if (options.type == REBASE_PRESERVE_MERGES)
die("cannot combine '--signoff' with "
@@ -1953,10 +1878,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
/* 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, &options.orig_head)) {
+ die_if_checked_out(buf.buf, 1);
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))
+ } else if (!get_oid(branch_name, &options.orig_head))
options.head_name = NULL;
else
die(_("fatal: no such branch/commit '%s'"),
@@ -1994,49 +1920,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
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)
- repo_update_index_if_able(the_repository, &lock_file);
- rollback_lock_file(&lock_file);
-
- 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;
- struct object_id oid;
-
- 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(NULL, "reset --hard",
- NULL, RESET_HEAD_HARD, NULL, NULL) < 0)
- die(_("could not reset --hard"));
-
- if (discard_index(the_repository->index) < 0 ||
- repo_read_index(the_repository) < 0)
- die(_("could not read index"));
- }
+ create_autostash(the_repository, state_dir_path("autostash", &options),
+ DEFAULT_REFLOG_ACTION);
}
if (require_clean_work_tree(the_repository, "rebase",
@@ -2053,33 +1938,29 @@ 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. This
- * optimization must not be done if this is an interactive rebase.
+ * 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) &&
- !is_interactive(&options)) {
+ allow_preemptive_ff) {
int flag;
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",
+ if (reset_head(the_repository,
+ &options.orig_head, "checkout",
options.head_name,
RESET_HEAD_RUN_POST_CHECKOUT_HOOK,
- NULL, buf.buf) < 0) {
+ NULL, buf.buf,
+ DEFAULT_REFLOG_ACTION) < 0) {
ret = !!error(_("could not switch to "
"%s"),
options.switch_to);
@@ -2141,7 +2022,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
diff_flush(&opts);
}
- if (is_interactive(&options))
+ if (is_merge(&options))
goto run_rebase;
/* Detach HEAD and reset the tree */
@@ -2151,10 +2032,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
strbuf_addf(&msg, "%s: checkout %s",
getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name);
- if (reset_head(&options.onto->object.oid, "checkout", NULL,
+ if (reset_head(the_repository, &options.onto->object.oid, "checkout", NULL,
RESET_HEAD_DETACH | RESET_ORIG_HEAD |
RESET_HEAD_RUN_POST_CHECKOUT_HOOK,
- NULL, msg.buf))
+ NULL, msg.buf, DEFAULT_REFLOG_ACTION))
die(_("Could not detach HEAD"));
strbuf_release(&msg);
@@ -2169,8 +2050,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
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,
- RESET_HEAD_REFS_ONLY, "HEAD", msg.buf);
+ reset_head(the_repository, NULL, "Fast-forwarded", options.head_name,
+ RESET_HEAD_REFS_ONLY, "HEAD", msg.buf,
+ DEFAULT_REFLOG_ACTION);
strbuf_release(&msg);
ret = !!finish_rebase(&options);
goto cleanup;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 04:41:41 +0000