int cmd_stripspace(int argc, const char **argv, const char *prefix) { struct strbuf buf = STRBUF_INIT; enum stripspace_mode mode = STRIP_DEFAULT; const struct option options[] = { OPT_CMDMODE('s', "strip-comments", &mode, N_("skip and remove all lines starting with comment character"), STRIP_COMMENTS), OPT_CMDMODE('c', "comment-lines", &mode, N_("prepend comment character and space to each line"), COMMENT_LINES), OPT_END() }; argc = parse_options(argc, argv, prefix, options, stripspace_usage, 0); if (argc) usage_with_options(stripspace_usage, options); if (mode == STRIP_COMMENTS || mode == COMMENT_LINES) git_config(git_default_config, NULL); if (strbuf_read(&buf, 0, 1024) < 0) die_errno("could not read the input"); if (mode == STRIP_DEFAULT || mode == STRIP_COMMENTS) strbuf_stripspace(&buf, mode == STRIP_COMMENTS); else comment_lines(&buf); write_or_die(1, buf.buf, buf.len); strbuf_release(&buf); return 0; }
int cmd_merge_base(int argc, const char **argv, const char *prefix) { struct commit **rev; int rev_nr = 0; int show_all = 0; int cmdmode = 0; struct option options[] = { OPT_BOOL('a', "all", &show_all, N_("output all common ancestors")), OPT_CMDMODE(0, "octopus", &cmdmode, N_("find ancestors for a single n-way merge"), 'o'), OPT_CMDMODE(0, "independent", &cmdmode, N_("list revs not reachable from others"), 'r'), OPT_CMDMODE(0, "is-ancestor", &cmdmode, N_("is the first one ancestor of the other?"), 'a'), OPT_CMDMODE(0, "fork-point", &cmdmode, N_("find where <commit> forked from reflog of <ref>"), 'f'), OPT_END() }; git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, options, merge_base_usage, 0); if (cmdmode == 'a') { if (argc < 2) usage_with_options(merge_base_usage, options); if (show_all) die("--is-ancestor cannot be used with --all"); return handle_is_ancestor(argc, argv); } if (cmdmode == 'r' && show_all) die("--independent cannot be used with --all"); if (cmdmode == 'o') return handle_octopus(argc, argv, show_all); if (cmdmode == 'r') return handle_independent(argc, argv); if (cmdmode == 'f') { if (argc < 1 || 2 < argc) usage_with_options(merge_base_usage, options); return handle_fork_point(argc, argv); } if (argc < 2) usage_with_options(merge_base_usage, options); ALLOC_ARRAY(rev, argc); while (argc-- > 0) rev[rev_nr++] = get_commit_reference(*argv++); return show_merge_base(rev, rev_nr, show_all); }
static int run_sequencer(int argc, const char **argv, struct replay_opts *opts) { const char * const * usage_str = revert_or_cherry_pick_usage(opts); const char *me = action_name(opts); int cmd = 0; struct option base_options[] = { OPT_CMDMODE(0, "quit", &cmd, N_("end revert or cherry-pick sequence"), 'q'), OPT_CMDMODE(0, "continue", &cmd, N_("resume revert or cherry-pick sequence"), 'c'), OPT_CMDMODE(0, "abort", &cmd, N_("cancel revert or cherry-pick sequence"), 'a'), OPT_BOOL('n', "no-commit", &opts->no_commit, N_("don't automatically commit")), OPT_BOOL('e', "edit", &opts->edit, N_("edit the commit message")), OPT_NOOP_NOARG('r', NULL), OPT_BOOL('s', "signoff", &opts->signoff, N_("add Signed-off-by:")), OPT_CALLBACK('m', "mainline", opts, N_("parent-number"), N_("select mainline parent"), option_parse_m), OPT_RERERE_AUTOUPDATE(&opts->allow_rerere_auto), OPT_STRING(0, "strategy", &opts->strategy, N_("strategy"), N_("merge strategy")), OPT_CALLBACK('X', "strategy-option", &opts, N_("option"), N_("option for merge strategy"), option_parse_x), { OPTION_STRING, 'S', "gpg-sign", &opts->gpg_sign, N_("key-id"), N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, OPT_END() }; struct option *options = base_options; if (opts->action == REPLAY_PICK) { struct option cp_extra[] = { OPT_BOOL('x', NULL, &opts->record_origin, N_("append commit name")), OPT_BOOL(0, "ff", &opts->allow_ff, N_("allow fast-forward")), OPT_BOOL(0, "allow-empty", &opts->allow_empty, N_("preserve initially empty commits")), OPT_BOOL(0, "allow-empty-message", &opts->allow_empty_message, N_("allow commits with empty messages")), OPT_BOOL(0, "keep-redundant-commits", &opts->keep_redundant_commits, N_("keep redundant, empty commits")), OPT_END(), }; options = parse_options_concat(options, cp_extra); } argc = parse_options(argc, argv, NULL, options, usage_str, PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN); /* implies allow_empty */ if (opts->keep_redundant_commits) opts->allow_empty = 1; /* Check for incompatible command line arguments */ if (cmd) { char *this_operation; if (cmd == 'q') this_operation = "--quit"; else if (cmd == 'c') this_operation = "--continue"; else { assert(cmd == 'a'); this_operation = "--abort"; } verify_opt_compatible(me, this_operation, "--no-commit", opts->no_commit, "--signoff", opts->signoff, "--mainline", opts->mainline, "--strategy", opts->strategy ? 1 : 0, "--strategy-option", opts->xopts ? 1 : 0, "-x", opts->record_origin, "--ff", opts->allow_ff, "--rerere-autoupdate", opts->allow_rerere_auto == RERERE_AUTOUPDATE, "--no-rerere-autoupdate", opts->allow_rerere_auto == RERERE_NOAUTOUPDATE, NULL); } if (opts->allow_ff) verify_opt_compatible(me, "--ff", "--signoff", opts->signoff, "--no-commit", opts->no_commit, "-x", opts->record_origin, "--edit", opts->edit, NULL); if (cmd) { opts->revs = NULL; } else { struct setup_revision_opt s_r_opt; opts->revs = xmalloc(sizeof(*opts->revs)); init_revisions(opts->revs, NULL); opts->revs->no_walk = REVISION_WALK_NO_WALK_UNSORTED; if (argc < 2) usage_with_options(usage_str, options); if (!strcmp(argv[1], "-")) argv[1] = "@{-1}"; memset(&s_r_opt, 0, sizeof(s_r_opt)); s_r_opt.assume_dashdash = 1; argc = setup_revisions(argc, argv, opts->revs, &s_r_opt); } if (argc > 1) usage_with_options(usage_str, options); /* These option values will be free()d */ opts->gpg_sign = xstrdup_or_null(opts->gpg_sign); opts->strategy = xstrdup_or_null(opts->strategy); if (cmd == 'q') { int ret = sequencer_remove_state(opts); if (!ret) remove_branch_state(); return ret; } if (cmd == 'c') return sequencer_continue(opts); if (cmd == 'a') return sequencer_rollback(opts); return sequencer_pick_revisions(opts); }
static void parse_args(int argc, const char **argv, struct replay_opts *opts) { const char * const * usage_str = revert_or_cherry_pick_usage(opts); const char *me = action_name(opts); int cmd = 0; struct option options[] = { OPT_CMDMODE(0, "quit", &cmd, N_("end revert or cherry-pick sequence"), 'q'), OPT_CMDMODE(0, "continue", &cmd, N_("resume revert or cherry-pick sequence"), 'c'), OPT_CMDMODE(0, "abort", &cmd, N_("cancel revert or cherry-pick sequence"), 'a'), OPT_BOOL('n', "no-commit", &opts->no_commit, N_("don't automatically commit")), OPT_BOOL('e', "edit", &opts->edit, N_("edit the commit message")), OPT_NOOP_NOARG('r', NULL), OPT_BOOL('s', "signoff", &opts->signoff, N_("add Signed-off-by:")), OPT_INTEGER('m', "mainline", &opts->mainline, N_("parent number")), OPT_RERERE_AUTOUPDATE(&opts->allow_rerere_auto), OPT_STRING(0, "strategy", &opts->strategy, N_("strategy"), N_("merge strategy")), OPT_CALLBACK('X', "strategy-option", &opts, N_("option"), N_("option for merge strategy"), option_parse_x), OPT_END(), OPT_END(), OPT_END(), OPT_END(), OPT_END(), OPT_END(), }; if (opts->action == REPLAY_PICK) { struct option cp_extra[] = { OPT_BOOL('x', NULL, &opts->record_origin, N_("append commit name")), OPT_BOOL(0, "ff", &opts->allow_ff, N_("allow fast-forward")), OPT_BOOL(0, "allow-empty", &opts->allow_empty, N_("preserve initially empty commits")), OPT_BOOL(0, "allow-empty-message", &opts->allow_empty_message, N_("allow commits with empty messages")), OPT_BOOL(0, "keep-redundant-commits", &opts->keep_redundant_commits, N_("keep redundant, empty commits")), OPT_END(), }; if (parse_options_concat(options, ARRAY_SIZE(options), cp_extra)) die(_("program error")); } argc = parse_options(argc, argv, NULL, options, usage_str, PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN); /* implies allow_empty */ if (opts->keep_redundant_commits) opts->allow_empty = 1; /* Set the subcommand */ if (cmd == 'q') opts->subcommand = REPLAY_REMOVE_STATE; else if (cmd == 'c') opts->subcommand = REPLAY_CONTINUE; else if (cmd == 'a') opts->subcommand = REPLAY_ROLLBACK; else opts->subcommand = REPLAY_NONE; /* Check for incompatible command line arguments */ if (opts->subcommand != REPLAY_NONE) { char *this_operation; if (opts->subcommand == REPLAY_REMOVE_STATE) this_operation = "--quit"; else if (opts->subcommand == REPLAY_CONTINUE) this_operation = "--continue"; else { assert(opts->subcommand == REPLAY_ROLLBACK); this_operation = "--abort"; } verify_opt_compatible(me, this_operation, "--no-commit", opts->no_commit, "--signoff", opts->signoff, "--mainline", opts->mainline, "--strategy", opts->strategy ? 1 : 0, "--strategy-option", opts->xopts ? 1 : 0, "-x", opts->record_origin, "--ff", opts->allow_ff, NULL); } if (opts->allow_ff) verify_opt_compatible(me, "--ff", "--signoff", opts->signoff, "--no-commit", opts->no_commit, "-x", opts->record_origin, "--edit", opts->edit, NULL); if (opts->subcommand != REPLAY_NONE) { opts->revs = NULL; } else { struct setup_revision_opt s_r_opt; opts->revs = xmalloc(sizeof(*opts->revs)); init_revisions(opts->revs, NULL); opts->revs->no_walk = REVISION_WALK_NO_WALK_UNSORTED; if (argc < 2) usage_with_options(usage_str, options); if (!strcmp(argv[1], "-")) argv[1] = "@{-1}"; memset(&s_r_opt, 0, sizeof(s_r_opt)); s_r_opt.assume_dashdash = 1; argc = setup_revisions(argc, argv, opts->revs, &s_r_opt); } if (argc > 1) usage_with_options(usage_str, options); }
int cmd_replace(int argc, const char **argv, const char *prefix) { int force = 0; int raw = 0; const char *format = NULL; enum { MODE_UNSPECIFIED = 0, MODE_LIST, MODE_DELETE, MODE_EDIT, MODE_GRAFT, MODE_CONVERT_GRAFT_FILE, MODE_REPLACE } cmdmode = MODE_UNSPECIFIED; struct option options[] = { OPT_CMDMODE('l', "list", &cmdmode, N_("list replace refs"), MODE_LIST), OPT_CMDMODE('d', "delete", &cmdmode, N_("delete replace refs"), MODE_DELETE), OPT_CMDMODE('e', "edit", &cmdmode, N_("edit existing object"), MODE_EDIT), OPT_CMDMODE('g', "graft", &cmdmode, N_("change a commit's parents"), MODE_GRAFT), OPT_CMDMODE(0, "convert-graft-file", &cmdmode, N_("convert existing graft file"), MODE_CONVERT_GRAFT_FILE), OPT_BOOL_F('f', "force", &force, N_("replace the ref if it exists"), PARSE_OPT_NOCOMPLETE), OPT_BOOL(0, "raw", &raw, N_("do not pretty-print contents for --edit")), OPT_STRING(0, "format", &format, N_("format"), N_("use this format")), OPT_END() }; check_replace_refs = 0; git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, options, git_replace_usage, 0); if (!cmdmode) cmdmode = argc ? MODE_REPLACE : MODE_LIST; if (format && cmdmode != MODE_LIST) usage_msg_opt("--format cannot be used when not listing", git_replace_usage, options); if (force && cmdmode != MODE_REPLACE && cmdmode != MODE_EDIT && cmdmode != MODE_GRAFT && cmdmode != MODE_CONVERT_GRAFT_FILE) usage_msg_opt("-f only makes sense when writing a replacement", git_replace_usage, options); if (raw && cmdmode != MODE_EDIT) usage_msg_opt("--raw only makes sense with --edit", git_replace_usage, options); switch (cmdmode) { case MODE_DELETE: if (argc < 1) usage_msg_opt("-d needs at least one argument", git_replace_usage, options); return for_each_replace_name(argv, delete_replace_ref); case MODE_REPLACE: if (argc != 2) usage_msg_opt("bad number of arguments", git_replace_usage, options); return replace_object(argv[0], argv[1], force); case MODE_EDIT: if (argc != 1) usage_msg_opt("-e needs exactly one argument", git_replace_usage, options); return edit_and_replace(argv[0], force, raw); case MODE_GRAFT: if (argc < 1) usage_msg_opt("-g needs at least one argument", git_replace_usage, options); return create_graft(argc, argv, force, 0); case MODE_CONVERT_GRAFT_FILE: if (argc != 0) usage_msg_opt("--convert-graft-file takes no argument", git_replace_usage, options); return !!convert_graft_file(force); case MODE_LIST: if (argc > 1) usage_msg_opt("only one pattern can be given with -l", git_replace_usage, options); return list_replace_refs(argv[0], format); default: BUG("invalid cmdmode %d", (int)cmdmode); } }
int cmd_bisect__helper(int argc, const char **argv, const char *prefix) { enum { NEXT_ALL = 1, WRITE_TERMS, BISECT_CLEAN_STATE, CHECK_EXPECTED_REVS, BISECT_RESET, BISECT_WRITE, CHECK_AND_SET_TERMS, BISECT_NEXT_CHECK, BISECT_TERMS, BISECT_START } cmdmode = 0; int no_checkout = 0, res = 0, nolog = 0; struct option options[] = { OPT_CMDMODE(0, "next-all", &cmdmode, N_("perform 'git bisect next'"), NEXT_ALL), OPT_CMDMODE(0, "write-terms", &cmdmode, N_("write the terms to .git/BISECT_TERMS"), WRITE_TERMS), OPT_CMDMODE(0, "bisect-clean-state", &cmdmode, N_("cleanup the bisection state"), BISECT_CLEAN_STATE), OPT_CMDMODE(0, "check-expected-revs", &cmdmode, N_("check for expected revs"), CHECK_EXPECTED_REVS), OPT_CMDMODE(0, "bisect-reset", &cmdmode, N_("reset the bisection state"), BISECT_RESET), OPT_CMDMODE(0, "bisect-write", &cmdmode, N_("write out the bisection state in BISECT_LOG"), BISECT_WRITE), OPT_CMDMODE(0, "check-and-set-terms", &cmdmode, N_("check and set terms in a bisection state"), CHECK_AND_SET_TERMS), OPT_CMDMODE(0, "bisect-next-check", &cmdmode, N_("check whether bad or good terms exist"), BISECT_NEXT_CHECK), OPT_CMDMODE(0, "bisect-terms", &cmdmode, N_("print out the bisect terms"), BISECT_TERMS), OPT_CMDMODE(0, "bisect-start", &cmdmode, N_("start the bisect session"), BISECT_START), OPT_BOOL(0, "no-checkout", &no_checkout, N_("update BISECT_HEAD instead of checking out the current commit")), OPT_BOOL(0, "no-log", &nolog, N_("no log for BISECT_WRITE ")), OPT_END() }; struct bisect_terms terms = { .term_good = NULL, .term_bad = NULL }; argc = parse_options(argc, argv, prefix, options, git_bisect_helper_usage, PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_UNKNOWN); if (!cmdmode) usage_with_options(git_bisect_helper_usage, options); switch (cmdmode) { case NEXT_ALL: return bisect_next_all(the_repository, prefix, no_checkout); case WRITE_TERMS: if (argc != 2) return error(_("--write-terms requires two arguments")); return write_terms(argv[0], argv[1]); case BISECT_CLEAN_STATE: if (argc != 0) return error(_("--bisect-clean-state requires no arguments")); return bisect_clean_state(); case CHECK_EXPECTED_REVS: check_expected_revs(argv, argc); return 0; case BISECT_RESET: if (argc > 1) return error(_("--bisect-reset requires either no argument or a commit")); return !!bisect_reset(argc ? argv[0] : NULL); case BISECT_WRITE: if (argc != 4 && argc != 5) return error(_("--bisect-write requires either 4 or 5 arguments")); set_terms(&terms, argv[3], argv[2]); res = bisect_write(argv[0], argv[1], &terms, nolog); break; case CHECK_AND_SET_TERMS: if (argc != 3) return error(_("--check-and-set-terms requires 3 arguments")); set_terms(&terms, argv[2], argv[1]); res = check_and_set_terms(&terms, argv[0]); break; case BISECT_NEXT_CHECK: if (argc != 2 && argc != 3) return error(_("--bisect-next-check requires 2 or 3 arguments")); set_terms(&terms, argv[1], argv[0]); res = bisect_next_check(&terms, argc == 3 ? argv[2] : NULL); break; case BISECT_TERMS: if (argc > 1) return error(_("--bisect-terms requires 0 or 1 argument")); res = bisect_terms(&terms, argc == 1 ? argv[0] : NULL); break; case BISECT_START: set_terms(&terms, "bad", "good"); res = bisect_start(&terms, no_checkout, argv, argc); break; default: return error("BUG: unknown subcommand '%d'", cmdmode); } free_terms(&terms); return !!res; }
int cmd_tag(int argc, const char **argv, const char *prefix) { struct strbuf buf = STRBUF_INIT; struct strbuf ref = STRBUF_INIT; unsigned char object[20], prev[20]; const char *object_ref, *tag; struct create_tag_options opt; char *cleanup_arg = NULL; int create_reflog = 0; int annotate = 0, force = 0; int cmdmode = 0, create_tag_object = 0; const char *msgfile = NULL, *keyid = NULL; struct msg_arg msg = { 0, STRBUF_INIT }; struct ref_transaction *transaction; struct strbuf err = STRBUF_INIT; struct ref_filter filter; static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting; const char *format = NULL; struct option options[] = { OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'), { OPTION_INTEGER, 'n', NULL, &filter.lines, N_("n"), N_("print <n> lines of each tag message"), PARSE_OPT_OPTARG, NULL, 1 }, OPT_CMDMODE('d', "delete", &cmdmode, N_("delete tags"), 'd'), OPT_CMDMODE('v', "verify", &cmdmode, N_("verify tags"), 'v'), OPT_GROUP(N_("Tag creation options")), OPT_BOOL('a', "annotate", &annotate, N_("annotated tag, needs a message")), OPT_CALLBACK('m', "message", &msg, N_("message"), N_("tag message"), parse_msg_arg), OPT_FILENAME('F', "file", &msgfile, N_("read message from file")), OPT_BOOL('s', "sign", &opt.sign, N_("annotated and GPG-signed tag")), OPT_STRING(0, "cleanup", &cleanup_arg, N_("mode"), N_("how to strip spaces and #comments from message")), OPT_STRING('u', "local-user", &keyid, N_("key-id"), N_("use another key to sign the tag")), OPT__FORCE(&force, N_("replace the tag if exists")), OPT_BOOL(0, "create-reflog", &create_reflog, N_("create a reflog")), OPT_GROUP(N_("Tag listing options")), OPT_COLUMN(0, "column", &colopts, N_("show tag list in columns")), OPT_CONTAINS(&filter.with_commit, N_("print only tags that contain the commit")), OPT_WITH(&filter.with_commit, N_("print only tags that contain the commit")), OPT_MERGED(&filter, N_("print only tags that are merged")), OPT_NO_MERGED(&filter, N_("print only tags that are not merged")), OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"), N_("field name to sort on"), &parse_opt_ref_sorting), { OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"), N_("print only tags of the object"), 0, parse_opt_object_name }, OPT_STRING( 0 , "format", &format, N_("format"), N_("format to use for the output")), OPT_END() }; git_config(git_tag_config, sorting_tail); memset(&opt, 0, sizeof(opt)); memset(&filter, 0, sizeof(filter)); filter.lines = -1; argc = parse_options(argc, argv, prefix, options, git_tag_usage, 0); if (keyid) { opt.sign = 1; set_signing_key(keyid); } create_tag_object = (opt.sign || annotate || msg.given || msgfile); if (argc == 0 && !cmdmode) cmdmode = 'l'; if ((create_tag_object || force) && (cmdmode != 0)) usage_with_options(git_tag_usage, options); finalize_colopts(&colopts, -1); if (cmdmode == 'l' && filter.lines != -1) { if (explicitly_enable_column(colopts)) die(_("--column and -n are incompatible")); colopts = 0; } if (!sorting) sorting = ref_default_sorting(); if (cmdmode == 'l') { int ret; if (column_active(colopts)) { struct column_options copts; memset(&copts, 0, sizeof(copts)); copts.padding = 2; run_column_filter(colopts, &copts); } filter.name_patterns = argv; ret = list_tags(&filter, sorting, format); if (column_active(colopts)) stop_column_filter(); return ret; } if (filter.lines != -1) die(_("-n option is only allowed with -l.")); if (filter.with_commit) die(_("--contains option is only allowed with -l.")); if (filter.points_at.nr) die(_("--points-at option is only allowed with -l.")); if (filter.merge_commit) die(_("--merged and --no-merged option are only allowed with -l")); if (cmdmode == 'd') return for_each_tag_name(argv, delete_tag); if (cmdmode == 'v') return for_each_tag_name(argv, verify_tag); if (msg.given || msgfile) { if (msg.given && msgfile) die(_("only one -F or -m option is allowed.")); if (msg.given) strbuf_addbuf(&buf, &(msg.buf)); else { if (!strcmp(msgfile, "-")) { if (strbuf_read(&buf, 0, 1024) < 0) die_errno(_("cannot read '%s'"), msgfile); } else { if (strbuf_read_file(&buf, msgfile, 1024) < 0) die_errno(_("could not open or read '%s'"), msgfile); } } } tag = argv[0]; object_ref = argc == 2 ? argv[1] : "HEAD"; if (argc > 2) die(_("too many params")); if (get_sha1(object_ref, object)) die(_("Failed to resolve '%s' as a valid ref."), object_ref); if (strbuf_check_tag_ref(&ref, tag)) die(_("'%s' is not a valid tag name."), tag); if (read_ref(ref.buf, prev)) hashclr(prev); else if (!force) die(_("tag '%s' already exists"), tag); opt.message_given = msg.given || msgfile; if (!cleanup_arg || !strcmp(cleanup_arg, "strip")) opt.cleanup_mode = CLEANUP_ALL; else if (!strcmp(cleanup_arg, "verbatim")) opt.cleanup_mode = CLEANUP_NONE; else if (!strcmp(cleanup_arg, "whitespace")) opt.cleanup_mode = CLEANUP_SPACE; else die(_("Invalid cleanup mode %s"), cleanup_arg); if (create_tag_object) { if (force_sign_annotate && !annotate) opt.sign = 1; create_tag(object, tag, &buf, &opt, prev, object); } transaction = ref_transaction_begin(&err); if (!transaction || ref_transaction_update(transaction, ref.buf, object, prev, create_reflog ? REF_FORCE_CREATE_REFLOG : 0, NULL, &err) || ref_transaction_commit(transaction, &err)) die("%s", err.buf); ref_transaction_free(transaction); if (force && !is_null_sha1(prev) && hashcmp(prev, object)) printf(_("Updated tag '%s' (was %s)\n"), tag, find_unique_abbrev(prev, DEFAULT_ABBREV)); strbuf_release(&err); strbuf_release(&buf); strbuf_release(&ref); return 0; }