diff --git a/builtin/revert.c b/builtin/revert.c index d6c9f1dadb..50f72debe0 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -35,76 +35,94 @@ static const char * const cherry_pick_usage[] = { NULL }; -static int edit, record_origin, no_commit, mainline, signoff, allow_ff; -static enum { REVERT, CHERRY_PICK } action; -static int commit_argc; -static const char **commit_argv; -static int allow_rerere_auto; +enum replay_action { REVERT, CHERRY_PICK }; -static const char *me; +struct replay_opts { + enum replay_action action; -/* Merge strategy. */ -static const char *strategy; -static const char **xopts; -static size_t xopts_nr, xopts_alloc; + /* Boolean options */ + int edit; + int record_origin; + int no_commit; + int signoff; + int allow_ff; + int allow_rerere_auto; + + int mainline; + int commit_argc; + const char **commit_argv; + + /* Merge strategy */ + const char *strategy; + const char **xopts; + size_t xopts_nr, xopts_alloc; +}; #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" +static const char *action_name(const struct replay_opts *opts) +{ + return opts->action == REVERT ? "revert" : "cherry-pick"; +} + static char *get_encoding(const char *message); -static const char * const *revert_or_cherry_pick_usage(void) +static const char * const *revert_or_cherry_pick_usage(struct replay_opts *opts) { - return action == REVERT ? revert_usage : cherry_pick_usage; + return opts->action == REVERT ? revert_usage : cherry_pick_usage; } static int option_parse_x(const struct option *opt, const char *arg, int unset) { + struct replay_opts **opts_ptr = opt->value; + struct replay_opts *opts = *opts_ptr; + if (unset) return 0; - ALLOC_GROW(xopts, xopts_nr + 1, xopts_alloc); - xopts[xopts_nr++] = xstrdup(arg); + ALLOC_GROW(opts->xopts, opts->xopts_nr + 1, opts->xopts_alloc); + opts->xopts[opts->xopts_nr++] = xstrdup(arg); return 0; } -static void parse_args(int argc, const char **argv) +static void parse_args(int argc, const char **argv, struct replay_opts *opts) { - const char * const * usage_str = revert_or_cherry_pick_usage(); + const char * const * usage_str = revert_or_cherry_pick_usage(opts); int noop; struct option options[] = { - OPT_BOOLEAN('n', "no-commit", &no_commit, "don't automatically commit"), - OPT_BOOLEAN('e', "edit", &edit, "edit the commit message"), + OPT_BOOLEAN('n', "no-commit", &opts->no_commit, "don't automatically commit"), + OPT_BOOLEAN('e', "edit", &opts->edit, "edit the commit message"), { OPTION_BOOLEAN, 'r', NULL, &noop, NULL, "no-op (backward compatibility)", PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 0 }, - OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"), - OPT_INTEGER('m', "mainline", &mainline, "parent number"), - OPT_RERERE_AUTOUPDATE(&allow_rerere_auto), - OPT_STRING(0, "strategy", &strategy, "strategy", "merge strategy"), - OPT_CALLBACK('X', "strategy-option", &xopts, "option", + OPT_BOOLEAN('s', "signoff", &opts->signoff, "add Signed-off-by:"), + OPT_INTEGER('m', "mainline", &opts->mainline, "parent number"), + OPT_RERERE_AUTOUPDATE(&opts->allow_rerere_auto), + OPT_STRING(0, "strategy", &opts->strategy, "strategy", "merge strategy"), + OPT_CALLBACK('X', "strategy-option", &opts, "option", "option for merge strategy", option_parse_x), OPT_END(), OPT_END(), OPT_END(), }; - if (action == CHERRY_PICK) { + if (opts->action == CHERRY_PICK) { struct option cp_extra[] = { - OPT_BOOLEAN('x', NULL, &record_origin, "append commit name"), - OPT_BOOLEAN(0, "ff", &allow_ff, "allow fast-forward"), + OPT_BOOLEAN('x', NULL, &opts->record_origin, "append commit name"), + OPT_BOOLEAN(0, "ff", &opts->allow_ff, "allow fast-forward"), OPT_END(), }; if (parse_options_concat(options, ARRAY_SIZE(options), cp_extra)) die(_("program error")); } - commit_argc = parse_options(argc, argv, NULL, options, usage_str, - PARSE_OPT_KEEP_ARGV0 | - PARSE_OPT_KEEP_UNKNOWN); - if (commit_argc < 2) + opts->commit_argc = parse_options(argc, argv, NULL, options, usage_str, + PARSE_OPT_KEEP_ARGV0 | + PARSE_OPT_KEEP_UNKNOWN); + if (opts->commit_argc < 2) usage_with_options(usage_str, options); - commit_argv = argv; + opts->commit_argv = argv; } struct commit_message { @@ -240,20 +258,20 @@ static struct tree *empty_tree(void) return tree; } -static NORETURN void die_dirty_index(const char *me) +static NORETURN void die_dirty_index(struct replay_opts *opts) { if (read_cache_unmerged()) { - die_resolve_conflict(me); + die_resolve_conflict(action_name(opts)); } else { if (advice_commit_before_merge) { - if (action == REVERT) + if (opts->action == REVERT) die(_("Your local changes would be overwritten by revert.\n" "Please, commit your changes or stash them to proceed.")); else die(_("Your local changes would be overwritten by cherry-pick.\n" "Please, commit your changes or stash them to proceed.")); } else { - if (action == REVERT) + if (opts->action == REVERT) die(_("Your local changes would be overwritten by revert.\n")); else die(_("Your local changes would be overwritten by cherry-pick.\n")); @@ -274,7 +292,8 @@ static int fast_forward_to(const unsigned char *to, const unsigned char *from) static int do_recursive_merge(struct commit *base, struct commit *next, const char *base_label, const char *next_label, - unsigned char *head, struct strbuf *msgbuf) + unsigned char *head, struct strbuf *msgbuf, + struct replay_opts *opts) { struct merge_options o; struct tree *result, *next_tree, *base_tree, *head_tree; @@ -295,7 +314,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next, next_tree = next ? next->tree : empty_tree(); base_tree = base ? base->tree : empty_tree(); - for (xopt = xopts; xopt != xopts + xopts_nr; xopt++) + for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++) parse_merge_opt(&o, *xopt); clean = merge_trees(&o, @@ -306,7 +325,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next, (write_cache(index_fd, active_cache, active_nr) || commit_locked_index(&index_lock))) /* TRANSLATORS: %s will be "revert" or "cherry-pick" */ - die(_("%s: Unable to write new index file"), me); + die(_("%s: Unable to write new index file"), action_name(opts)); rollback_lock_file(&index_lock); if (!clean) { @@ -335,7 +354,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next, * If we are revert, or if our cherry-pick results in a hand merge, * we had better say that the current user is responsible for that. */ -static int run_git_commit(const char *defmsg) +static int run_git_commit(const char *defmsg, struct replay_opts *opts) { /* 6 is max possible length of our args array including NULL */ const char *args[6]; @@ -343,9 +362,9 @@ static int run_git_commit(const char *defmsg) args[i++] = "commit"; args[i++] = "-n"; - if (signoff) + if (opts->signoff) args[i++] = "-s"; - if (!edit) { + if (!opts->edit) { args[i++] = "-F"; args[i++] = defmsg; } @@ -354,7 +373,7 @@ static int run_git_commit(const char *defmsg) return run_command_v_opt(args, RUN_GIT_CMD); } -static int do_pick_commit(struct commit *commit) +static int do_pick_commit(struct commit *commit, struct replay_opts *opts) { unsigned char head[20]; struct commit *base, *next, *parent; @@ -364,7 +383,7 @@ static int do_pick_commit(struct commit *commit) struct strbuf msgbuf = STRBUF_INIT; int res; - if (no_commit) { + if (opts->no_commit) { /* * We do not intend to commit immediately. We just want to * merge the differences in, so let's compute the tree @@ -377,7 +396,7 @@ static int do_pick_commit(struct commit *commit) if (get_sha1("HEAD", head)) die (_("You do not have a valid HEAD")); if (index_differs_from("HEAD", 0)) - die_dirty_index(me); + die_dirty_index(opts); } discard_cache(); @@ -389,32 +408,32 @@ static int do_pick_commit(struct commit *commit) int cnt; struct commit_list *p; - if (!mainline) + if (!opts->mainline) die(_("Commit %s is a merge but no -m option was given."), sha1_to_hex(commit->object.sha1)); for (cnt = 1, p = commit->parents; - cnt != mainline && p; + cnt != opts->mainline && p; cnt++) p = p->next; - if (cnt != mainline || !p) + if (cnt != opts->mainline || !p) die(_("Commit %s does not have parent %d"), - sha1_to_hex(commit->object.sha1), mainline); + sha1_to_hex(commit->object.sha1), opts->mainline); parent = p->item; - } else if (0 < mainline) + } else if (0 < opts->mainline) die(_("Mainline was specified but commit %s is not a merge."), sha1_to_hex(commit->object.sha1)); else parent = commit->parents->item; - if (allow_ff && parent && !hashcmp(parent->object.sha1, head)) + if (opts->allow_ff && parent && !hashcmp(parent->object.sha1, head)) return fast_forward_to(commit->object.sha1, head); if (parent && parse_commit(parent) < 0) /* TRANSLATORS: The first %s will be "revert" or "cherry-pick", the second %s a SHA1 */ die(_("%s: cannot parse parent commit %s"), - me, sha1_to_hex(parent->object.sha1)); + action_name(opts), sha1_to_hex(parent->object.sha1)); if (get_message(commit, &msg) != 0) die(_("Cannot get commit message for %s"), @@ -429,7 +448,7 @@ static int do_pick_commit(struct commit *commit) defmsg = git_pathdup("MERGE_MSG"); - if (action == REVERT) { + if (opts->action == REVERT) { base = commit; base_label = msg.label; next = parent; @@ -463,18 +482,18 @@ static int do_pick_commit(struct commit *commit) strbuf_addstr(&msgbuf, p); } - if (record_origin) { + if (opts->record_origin) { strbuf_addstr(&msgbuf, "(cherry picked from commit "); strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1)); strbuf_addstr(&msgbuf, ")\n"); } - if (!no_commit) + if (!opts->no_commit) write_cherry_pick_head(commit); } - if (!strategy || !strcmp(strategy, "recursive") || action == REVERT) { + if (!opts->strategy || !strcmp(opts->strategy, "recursive") || opts->action == REVERT) { res = do_recursive_merge(base, next, base_label, next_label, - head, &msgbuf); + head, &msgbuf, opts); write_message(&msgbuf, defmsg); } else { struct commit_list *common = NULL; @@ -484,23 +503,23 @@ static int do_pick_commit(struct commit *commit) commit_list_insert(base, &common); commit_list_insert(next, &remotes); - res = try_merge_command(strategy, xopts_nr, xopts, common, - sha1_to_hex(head), remotes); + res = try_merge_command(opts->strategy, opts->xopts_nr, opts->xopts, + common, sha1_to_hex(head), remotes); free_commit_list(common); free_commit_list(remotes); } if (res) { - error(action == REVERT + error(opts->action == REVERT ? _("could not revert %s... %s") : _("could not apply %s... %s"), find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV), msg.subject); print_advice(); - rerere(allow_rerere_auto); + rerere(opts->allow_rerere_auto); } else { - if (!no_commit) - res = run_git_commit(defmsg); + if (!opts->no_commit) + res = run_git_commit(defmsg, opts); } free_message(&msg); @@ -509,18 +528,18 @@ static int do_pick_commit(struct commit *commit) return res; } -static void prepare_revs(struct rev_info *revs) +static void prepare_revs(struct rev_info *revs, struct replay_opts *opts) { int argc; init_revisions(revs, NULL); revs->no_walk = 1; - if (action != REVERT) + if (opts->action != REVERT) revs->reverse = 1; - argc = setup_revisions(commit_argc, commit_argv, revs, NULL); + argc = setup_revisions(opts->commit_argc, opts->commit_argv, revs, NULL); if (argc > 1) - usage(*revert_or_cherry_pick_usage()); + usage(*revert_or_cherry_pick_usage(opts)); if (prepare_revision_walk(revs)) die(_("revision walk setup failed")); @@ -529,48 +548,48 @@ static void prepare_revs(struct rev_info *revs) die(_("empty commit set passed")); } -static void read_and_refresh_cache(const char *me) +static void read_and_refresh_cache(struct replay_opts *opts) { static struct lock_file index_lock; int index_fd = hold_locked_index(&index_lock, 0); if (read_index_preload(&the_index, NULL) < 0) - die(_("git %s: failed to read the index"), me); + die(_("git %s: failed to read the index"), action_name(opts)); refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL); if (the_index.cache_changed) { if (write_index(&the_index, index_fd) || commit_locked_index(&index_lock)) - die(_("git %s: failed to refresh the index"), me); + die(_("git %s: failed to refresh the index"), action_name(opts)); } rollback_lock_file(&index_lock); } -static int revert_or_cherry_pick(int argc, const char **argv) +static int revert_or_cherry_pick(int argc, const char **argv, + struct replay_opts *opts) { struct rev_info revs; struct commit *commit; git_config(git_default_config, NULL); - me = action == REVERT ? "revert" : "cherry-pick"; - setenv(GIT_REFLOG_ACTION, me, 0); - parse_args(argc, argv); + setenv(GIT_REFLOG_ACTION, action_name(opts), 0); + parse_args(argc, argv, opts); - if (allow_ff) { - if (signoff) + if (opts->allow_ff) { + if (opts->signoff) die(_("cherry-pick --ff cannot be used with --signoff")); - if (no_commit) + if (opts->no_commit) die(_("cherry-pick --ff cannot be used with --no-commit")); - if (record_origin) + if (opts->record_origin) die(_("cherry-pick --ff cannot be used with -x")); - if (edit) + if (opts->edit) die(_("cherry-pick --ff cannot be used with --edit")); } - read_and_refresh_cache(me); + read_and_refresh_cache(opts); - prepare_revs(&revs); + prepare_revs(&revs, opts); while ((commit = get_revision(&revs))) { - int res = do_pick_commit(commit); + int res = do_pick_commit(commit, opts); if (res) return res; } @@ -580,14 +599,20 @@ static int revert_or_cherry_pick(int argc, const char **argv) int cmd_revert(int argc, const char **argv, const char *prefix) { + struct replay_opts opts; + + memset(&opts, 0, sizeof(opts)); if (isatty(0)) - edit = 1; - action = REVERT; - return revert_or_cherry_pick(argc, argv); + opts.edit = 1; + opts.action = REVERT; + return revert_or_cherry_pick(argc, argv, &opts); } int cmd_cherry_pick(int argc, const char **argv, const char *prefix) { - action = CHERRY_PICK; - return revert_or_cherry_pick(argc, argv); + struct replay_opts opts; + + memset(&opts, 0, sizeof(opts)); + opts.action = CHERRY_PICK; + return revert_or_cherry_pick(argc, argv, &opts); }