diff options
Diffstat (limited to 'third_party/git/builtin/rev-parse.c')
| -rw-r--r-- | third_party/git/builtin/rev-parse.c | 979 |
1 files changed, 979 insertions, 0 deletions
diff --git a/third_party/git/builtin/rev-parse.c b/third_party/git/builtin/rev-parse.c new file mode 100644 index 000000000000..7a00da820355 --- /dev/null +++ b/third_party/git/builtin/rev-parse.c @@ -0,0 +1,979 @@ +/* + * rev-parse.c + * + * Copyright (C) Linus Torvalds, 2005 + */ +#define USE_THE_INDEX_COMPATIBILITY_MACROS +#include "cache.h" +#include "config.h" +#include "commit.h" +#include "refs.h" +#include "quote.h" +#include "builtin.h" +#include "parse-options.h" +#include "diff.h" +#include "revision.h" +#include "split-index.h" +#include "submodule.h" +#include "commit-reach.h" + +#define DO_REVS 1 +#define DO_NOREV 2 +#define DO_FLAGS 4 +#define DO_NONFLAGS 8 +static int filter = ~0; + +static const char *def; + +#define NORMAL 0 +#define REVERSED 1 +static int show_type = NORMAL; + +#define SHOW_SYMBOLIC_ASIS 1 +#define SHOW_SYMBOLIC_FULL 2 +static int symbolic; +static int abbrev; +static int abbrev_ref; +static int abbrev_ref_strict; +static int output_sq; + +static int stuck_long; +static struct string_list *ref_excludes; + +/* + * Some arguments are relevant "revision" arguments, + * others are about output format or other details. + * This sorts it all out. + */ +static int is_rev_argument(const char *arg) +{ + static const char *rev_args[] = { + "--all", + "--bisect", + "--dense", + "--branches=", + "--branches", + "--header", + "--ignore-missing", + "--max-age=", + "--max-count=", + "--min-age=", + "--no-merges", + "--min-parents=", + "--no-min-parents", + "--max-parents=", + "--no-max-parents", + "--objects", + "--objects-edge", + "--parents", + "--pretty", + "--remotes=", + "--remotes", + "--glob=", + "--sparse", + "--tags=", + "--tags", + "--topo-order", + "--date-order", + "--unpacked", + NULL + }; + const char **p = rev_args; + + /* accept -<digit>, like traditional "head" */ + if ((*arg == '-') && isdigit(arg[1])) + return 1; + + for (;;) { + const char *str = *p++; + int len; + if (!str) + return 0; + len = strlen(str); + if (!strcmp(arg, str) || + (str[len-1] == '=' && !strncmp(arg, str, len))) + return 1; + } +} + +/* Output argument as a string, either SQ or normal */ +static void show(const char *arg) +{ + if (output_sq) { + int sq = '\'', ch; + + putchar(sq); + while ((ch = *arg++)) { + if (ch == sq) + fputs("'\\'", stdout); + putchar(ch); + } + putchar(sq); + putchar(' '); + } + else + puts(arg); +} + +/* Like show(), but with a negation prefix according to type */ +static void show_with_type(int type, const char *arg) +{ + if (type != show_type) + putchar('^'); + show(arg); +} + +/* Output a revision, only if filter allows it */ +static void show_rev(int type, const struct object_id *oid, const char *name) +{ + if (!(filter & DO_REVS)) + return; + def = NULL; + + if ((symbolic || abbrev_ref) && name) { + if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) { + struct object_id discard; + char *full; + + switch (dwim_ref(name, strlen(name), &discard, &full)) { + case 0: + /* + * Not found -- not a ref. We could + * emit "name" here, but symbolic-full + * users are interested in finding the + * refs spelled in full, and they would + * need to filter non-refs if we did so. + */ + break; + case 1: /* happy */ + if (abbrev_ref) + full = shorten_unambiguous_ref(full, + abbrev_ref_strict); + show_with_type(type, full); + break; + default: /* ambiguous */ + error("refname '%s' is ambiguous", name); + break; + } + free(full); + } else { + show_with_type(type, name); + } + } + else if (abbrev) + show_with_type(type, find_unique_abbrev(oid, abbrev)); + else + show_with_type(type, oid_to_hex(oid)); +} + +/* Output a flag, only if filter allows it. */ +static int show_flag(const char *arg) +{ + if (!(filter & DO_FLAGS)) + return 0; + if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV)) { + show(arg); + return 1; + } + return 0; +} + +static int show_default(void) +{ + const char *s = def; + + if (s) { + struct object_id oid; + + def = NULL; + if (!get_oid(s, &oid)) { + show_rev(NORMAL, &oid, s); + return 1; + } + } + return 0; +} + +static int show_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) +{ + if (ref_excluded(ref_excludes, refname)) + return 0; + show_rev(NORMAL, oid, refname); + return 0; +} + +static int anti_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) +{ + show_rev(REVERSED, oid, refname); + return 0; +} + +static int show_abbrev(const struct object_id *oid, void *cb_data) +{ + show_rev(NORMAL, oid, NULL); + return 0; +} + +static void show_datestring(const char *flag, const char *datestr) +{ + char *buffer; + + /* date handling requires both flags and revs */ + if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS)) + return; + buffer = xstrfmt("%s%"PRItime, flag, approxidate(datestr)); + show(buffer); + free(buffer); +} + +static int show_file(const char *arg, int output_prefix) +{ + show_default(); + if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) { + if (output_prefix) { + const char *prefix = startup_info->prefix; + char *fname = prefix_filename(prefix, arg); + show(fname); + free(fname); + } else + show(arg); + return 1; + } + return 0; +} + +static int try_difference(const char *arg) +{ + char *dotdot; + struct object_id start_oid; + struct object_id end_oid; + const char *end; + const char *start; + int symmetric; + static const char head_by_default[] = "HEAD"; + + if (!(dotdot = strstr(arg, ".."))) + return 0; + end = dotdot + 2; + start = arg; + symmetric = (*end == '.'); + + *dotdot = 0; + end += symmetric; + + if (!*end) + end = head_by_default; + if (dotdot == arg) + start = head_by_default; + + if (start == head_by_default && end == head_by_default && + !symmetric) { + /* + * Just ".."? That is not a range but the + * pathspec for the parent directory. + */ + *dotdot = '.'; + return 0; + } + + if (!get_oid_committish(start, &start_oid) && !get_oid_committish(end, &end_oid)) { + show_rev(NORMAL, &end_oid, end); + show_rev(symmetric ? NORMAL : REVERSED, &start_oid, start); + if (symmetric) { + struct commit_list *exclude; + struct commit *a, *b; + a = lookup_commit_reference(the_repository, &start_oid); + b = lookup_commit_reference(the_repository, &end_oid); + if (!a || !b) { + *dotdot = '.'; + return 0; + } + exclude = get_merge_bases(a, b); + while (exclude) { + struct commit *commit = pop_commit(&exclude); + show_rev(REVERSED, &commit->object.oid, NULL); + } + } + *dotdot = '.'; + return 1; + } + *dotdot = '.'; + return 0; +} + +static int try_parent_shorthands(const char *arg) +{ + char *dotdot; + struct object_id oid; + struct commit *commit; + struct commit_list *parents; + int parent_number; + int include_rev = 0; + int include_parents = 0; + int exclude_parent = 0; + + if ((dotdot = strstr(arg, "^!"))) { + include_rev = 1; + if (dotdot[2]) + return 0; + } else if ((dotdot = strstr(arg, "^@"))) { + include_parents = 1; + if (dotdot[2]) + return 0; + } else if ((dotdot = strstr(arg, "^-"))) { + include_rev = 1; + exclude_parent = 1; + + if (dotdot[2]) { + char *end; + exclude_parent = strtoul(dotdot + 2, &end, 10); + if (*end != '\0' || !exclude_parent) + return 0; + } + } else + return 0; + + *dotdot = 0; + if (get_oid_committish(arg, &oid) || + !(commit = lookup_commit_reference(the_repository, &oid))) { + *dotdot = '^'; + return 0; + } + + if (exclude_parent && + exclude_parent > commit_list_count(commit->parents)) { + *dotdot = '^'; + return 0; + } + + if (include_rev) + show_rev(NORMAL, &oid, arg); + for (parents = commit->parents, parent_number = 1; + parents; + parents = parents->next, parent_number++) { + char *name = NULL; + + if (exclude_parent && parent_number != exclude_parent) + continue; + + if (symbolic) + name = xstrfmt("%s^%d", arg, parent_number); + show_rev(include_parents ? NORMAL : REVERSED, + &parents->item->object.oid, name); + free(name); + } + + *dotdot = '^'; + return 1; +} + +static int parseopt_dump(const struct option *o, const char *arg, int unset) +{ + struct strbuf *parsed = o->value; + if (unset) + strbuf_addf(parsed, " --no-%s", o->long_name); + else if (o->short_name && (o->long_name == NULL || !stuck_long)) + strbuf_addf(parsed, " -%c", o->short_name); + else + strbuf_addf(parsed, " --%s", o->long_name); + if (arg) { + if (!stuck_long) + strbuf_addch(parsed, ' '); + else if (o->long_name) + strbuf_addch(parsed, '='); + sq_quote_buf(parsed, arg); + } + return 0; +} + +static const char *skipspaces(const char *s) +{ + while (isspace(*s)) + s++; + return s; +} + +static char *findspace(const char *s) +{ + for (; *s; s++) + if (isspace(*s)) + return (char*)s; + return NULL; +} + +static int cmd_parseopt(int argc, const char **argv, const char *prefix) +{ + static int keep_dashdash = 0, stop_at_non_option = 0; + static char const * const parseopt_usage[] = { + N_("git rev-parse --parseopt [<options>] -- [<args>...]"), + NULL + }; + static struct option parseopt_opts[] = { + OPT_BOOL(0, "keep-dashdash", &keep_dashdash, + N_("keep the `--` passed as an arg")), + OPT_BOOL(0, "stop-at-non-option", &stop_at_non_option, + N_("stop parsing after the " + "first non-option argument")), + OPT_BOOL(0, "stuck-long", &stuck_long, + N_("output in stuck long form")), + OPT_END(), + }; + static const char * const flag_chars = "*=?!"; + + struct strbuf sb = STRBUF_INIT, parsed = STRBUF_INIT; + const char **usage = NULL; + struct option *opts = NULL; + int onb = 0, osz = 0, unb = 0, usz = 0; + + strbuf_addstr(&parsed, "set --"); + argc = parse_options(argc, argv, prefix, parseopt_opts, parseopt_usage, + PARSE_OPT_KEEP_DASHDASH); + if (argc < 1 || strcmp(argv[0], "--")) + usage_with_options(parseopt_usage, parseopt_opts); + + /* get the usage up to the first line with a -- on it */ + for (;;) { + if (strbuf_getline(&sb, stdin) == EOF) + die("premature end of input"); + ALLOC_GROW(usage, unb + 1, usz); + if (!strcmp("--", sb.buf)) { + if (unb < 1) + die("no usage string given before the `--' separator"); + usage[unb] = NULL; + break; + } + usage[unb++] = strbuf_detach(&sb, NULL); + } + + /* parse: (<short>|<short>,<long>|<long>)[*=?!]*<arghint>? SP+ <help> */ + while (strbuf_getline(&sb, stdin) != EOF) { + const char *s; + char *help; + struct option *o; + + if (!sb.len) + continue; + + ALLOC_GROW(opts, onb + 1, osz); + memset(opts + onb, 0, sizeof(opts[onb])); + + o = &opts[onb++]; + help = findspace(sb.buf); + if (!help || sb.buf == help) { + o->type = OPTION_GROUP; + o->help = xstrdup(skipspaces(sb.buf)); + continue; + } + + *help = '\0'; + + o->type = OPTION_CALLBACK; + o->help = xstrdup(skipspaces(help+1)); + o->value = &parsed; + o->flags = PARSE_OPT_NOARG; + o->callback = &parseopt_dump; + + /* name(s) */ + s = strpbrk(sb.buf, flag_chars); + if (s == NULL) + s = help; + + if (s - sb.buf == 1) /* short option only */ + o->short_name = *sb.buf; + else if (sb.buf[1] != ',') /* long option only */ + o->long_name = xmemdupz(sb.buf, s - sb.buf); + else { + o->short_name = *sb.buf; + o->long_name = xmemdupz(sb.buf + 2, s - sb.buf - 2); + } + + /* flags */ + while (s < help) { + switch (*s++) { + case '=': + o->flags &= ~PARSE_OPT_NOARG; + continue; + case '?': + o->flags &= ~PARSE_OPT_NOARG; + o->flags |= PARSE_OPT_OPTARG; + continue; + case '!': + o->flags |= PARSE_OPT_NONEG; + continue; + case '*': + o->flags |= PARSE_OPT_HIDDEN; + continue; + } + s--; + break; + } + + if (s < help) + o->argh = xmemdupz(s, help - s); + } + strbuf_release(&sb); + + /* put an OPT_END() */ + ALLOC_GROW(opts, onb + 1, osz); + memset(opts + onb, 0, sizeof(opts[onb])); + argc = parse_options(argc, argv, prefix, opts, usage, + (keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0) | + (stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0) | + PARSE_OPT_SHELL_EVAL); + + strbuf_addstr(&parsed, " --"); + sq_quote_argv(&parsed, argv); + puts(parsed.buf); + return 0; +} + +static int cmd_sq_quote(int argc, const char **argv) +{ + struct strbuf buf = STRBUF_INIT; + + if (argc) + sq_quote_argv(&buf, argv); + printf("%s\n", buf.buf); + strbuf_release(&buf); + + return 0; +} + +static void die_no_single_rev(int quiet) +{ + if (quiet) + exit(1); + else + die("Needed a single revision"); +} + +static const char builtin_rev_parse_usage[] = +N_("git rev-parse --parseopt [<options>] -- [<args>...]\n" + " or: git rev-parse --sq-quote [<arg>...]\n" + " or: git rev-parse [<options>] [<arg>...]\n" + "\n" + "Run \"git rev-parse --parseopt -h\" for more information on the first usage."); + +/* + * Parse "opt" or "opt=<value>", setting value respectively to either + * NULL or the string after "=". + */ +static int opt_with_value(const char *arg, const char *opt, const char **value) +{ + if (skip_prefix(arg, opt, &arg)) { + if (!*arg) { + *value = NULL; + return 1; + } + if (*arg++ == '=') { + *value = arg; + return 1; + } + } + return 0; +} + +static void handle_ref_opt(const char *pattern, const char *prefix) +{ + if (pattern) + for_each_glob_ref_in(show_reference, pattern, prefix, NULL); + else + for_each_ref_in(prefix, show_reference, NULL); + clear_ref_exclusion(&ref_excludes); +} + +int cmd_rev_parse(int argc, const char **argv, const char *prefix) +{ + int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0; + int did_repo_setup = 0; + int has_dashdash = 0; + int output_prefix = 0; + struct object_id oid; + unsigned int flags = 0; + const char *name = NULL; + struct object_context unused; + struct strbuf buf = STRBUF_INIT; + const int hexsz = the_hash_algo->hexsz; + + if (argc > 1 && !strcmp("--parseopt", argv[1])) + return cmd_parseopt(argc - 1, argv + 1, prefix); + + if (argc > 1 && !strcmp("--sq-quote", argv[1])) + return cmd_sq_quote(argc - 2, argv + 2); + + if (argc > 1 && !strcmp("-h", argv[1])) + usage(builtin_rev_parse_usage); + + for (i = 1; i < argc; i++) { + if (!strcmp(argv[i], "--")) { + has_dashdash = 1; + break; + } + } + + /* No options; just report on whether we're in a git repo or not. */ + if (argc == 1) { + setup_git_directory(); + git_config(git_default_config, NULL); + return 0; + } + + for (i = 1; i < argc; i++) { + const char *arg = argv[i]; + + if (!strcmp(arg, "--local-env-vars")) { + int i; + for (i = 0; local_repo_env[i]; i++) + printf("%s\n", local_repo_env[i]); + continue; + } + if (!strcmp(arg, "--resolve-git-dir")) { + const char *gitdir = argv[++i]; + if (!gitdir) + die("--resolve-git-dir requires an argument"); + gitdir = resolve_gitdir(gitdir); + if (!gitdir) + die("not a gitdir '%s'", argv[i]); + puts(gitdir); + continue; + } + + /* The rest of the options require a git repository. */ + if (!did_repo_setup) { + prefix = setup_git_directory(); + git_config(git_default_config, NULL); + did_repo_setup = 1; + } + + if (!strcmp(arg, "--git-path")) { + if (!argv[i + 1]) + die("--git-path requires an argument"); + strbuf_reset(&buf); + puts(relative_path(git_path("%s", argv[i + 1]), + prefix, &buf)); + i++; + continue; + } + if (as_is) { + if (show_file(arg, output_prefix) && as_is < 2) + verify_filename(prefix, arg, 0); + continue; + } + if (!strcmp(arg,"-n")) { + if (++i >= argc) + die("-n requires an argument"); + if ((filter & DO_FLAGS) && (filter & DO_REVS)) { + show(arg); + show(argv[i]); + } + continue; + } + if (starts_with(arg, "-n")) { + if ((filter & DO_FLAGS) && (filter & DO_REVS)) + show(arg); + continue; + } + + if (*arg == '-') { + if (!strcmp(arg, "--")) { + as_is = 2; + /* Pass on the "--" if we show anything but files.. */ + if (filter & (DO_FLAGS | DO_REVS)) + show_file(arg, 0); + continue; + } + if (!strcmp(arg, "--default")) { + def = argv[++i]; + if (!def) + die("--default requires an argument"); + continue; + } + if (!strcmp(arg, "--prefix")) { + prefix = argv[++i]; + if (!prefix) + die("--prefix requires an argument"); + startup_info->prefix = prefix; + output_prefix = 1; + continue; + } + if (!strcmp(arg, "--revs-only")) { + filter &= ~DO_NOREV; + continue; + } + if (!strcmp(arg, "--no-revs")) { + filter &= ~DO_REVS; + continue; + } + if (!strcmp(arg, "--flags")) { + filter &= ~DO_NONFLAGS; + continue; + } + if (!strcmp(arg, "--no-flags")) { + filter &= ~DO_FLAGS; + continue; + } + if (!strcmp(arg, "--verify")) { + filter &= ~(DO_FLAGS|DO_NOREV); + verify = 1; + continue; + } + if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { + quiet = 1; + flags |= GET_OID_QUIETLY; + continue; + } + if (opt_with_value(arg, "--short", &arg)) { + filter &= ~(DO_FLAGS|DO_NOREV); + verify = 1; + abbrev = DEFAULT_ABBREV; + if (!arg) + continue; + abbrev = strtoul(arg, NULL, 10); + if (abbrev < MINIMUM_ABBREV) + abbrev = MINIMUM_ABBREV; + else if (hexsz <= abbrev) + abbrev = hexsz; + continue; + } + if (!strcmp(arg, "--sq")) { + output_sq = 1; + continue; + } + if (!strcmp(arg, "--not")) { + show_type ^= REVERSED; + continue; + } + if (!strcmp(arg, "--symbolic")) { + symbolic = SHOW_SYMBOLIC_ASIS; + continue; + } + if (!strcmp(arg, "--symbolic-full-name")) { + symbolic = SHOW_SYMBOLIC_FULL; + continue; + } + if (opt_with_value(arg, "--abbrev-ref", &arg)) { + abbrev_ref = 1; + abbrev_ref_strict = warn_ambiguous_refs; + if (arg) { + if (!strcmp(arg, "strict")) + abbrev_ref_strict = 1; + else if (!strcmp(arg, "loose")) + abbrev_ref_strict = 0; + else + die("unknown mode for --abbrev-ref: %s", + arg); + } + continue; + } + if (!strcmp(arg, "--all")) { + for_each_ref(show_reference, NULL); + clear_ref_exclusion(&ref_excludes); + continue; + } + if (skip_prefix(arg, "--disambiguate=", &arg)) { + for_each_abbrev(arg, show_abbrev, NULL); + continue; + } + if (!strcmp(arg, "--bisect")) { + for_each_fullref_in("refs/bisect/bad", show_reference, NULL, 0); + for_each_fullref_in("refs/bisect/good", anti_reference, NULL, 0); + continue; + } + if (opt_with_value(arg, "--branches", &arg)) { + handle_ref_opt(arg, "refs/heads/"); + continue; + } + if (opt_with_value(arg, "--tags", &arg)) { + handle_ref_opt(arg, "refs/tags/"); + continue; + } + if (skip_prefix(arg, "--glob=", &arg)) { + handle_ref_opt(arg, NULL); + continue; + } + if (opt_with_value(arg, "--remotes", &arg)) { + handle_ref_opt(arg, "refs/remotes/"); + continue; + } + if (skip_prefix(arg, "--exclude=", &arg)) { + add_ref_exclusion(&ref_excludes, arg); + continue; + } + if (!strcmp(arg, "--show-toplevel")) { + const char *work_tree = get_git_work_tree(); + if (work_tree) + puts(work_tree); + else + die("this operation must be run in a work tree"); + continue; + } + if (!strcmp(arg, "--show-superproject-working-tree")) { + const char *superproject = get_superproject_working_tree(); + if (superproject) + puts(superproject); + continue; + } + if (!strcmp(arg, "--show-prefix")) { + if (prefix) + puts(prefix); + else + putchar('\n'); + continue; + } + if (!strcmp(arg, "--show-cdup")) { + const char *pfx = prefix; + if (!is_inside_work_tree()) { + const char *work_tree = + get_git_work_tree(); + if (work_tree) + printf("%s\n", work_tree); + continue; + } + while (pfx) { + pfx = strchr(pfx, '/'); + if (pfx) { + pfx++; + printf("../"); + } + } + putchar('\n'); + continue; + } + if (!strcmp(arg, "--git-dir") || + !strcmp(arg, "--absolute-git-dir")) { + const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); + char *cwd; + int len; + if (arg[2] == 'g') { /* --git-dir */ + if (gitdir) { + puts(gitdir); + continue; + } + if (!prefix) { + puts(".git"); + continue; + } + } else { /* --absolute-git-dir */ + if (!gitdir && !prefix) + gitdir = ".git"; + if (gitdir) { + puts(real_path(gitdir)); + continue; + } + } + cwd = xgetcwd(); + len = strlen(cwd); + printf("%s%s.git\n", cwd, len && cwd[len-1] != '/' ? "/" : ""); + free(cwd); + continue; + } + if (!strcmp(arg, "--git-common-dir")) { + strbuf_reset(&buf); + puts(relative_path(get_git_common_dir(), + prefix, &buf)); + continue; + } + if (!strcmp(arg, "--is-inside-git-dir")) { + printf("%s\n", is_inside_git_dir() ? "true" + : "false"); + continue; + } + if (!strcmp(arg, "--is-inside-work-tree")) { + printf("%s\n", is_inside_work_tree() ? "true" + : "false"); + continue; + } + if (!strcmp(arg, "--is-bare-repository")) { + printf("%s\n", is_bare_repository() ? "true" + : "false"); + continue; + } + if (!strcmp(arg, "--is-shallow-repository")) { + printf("%s\n", + is_repository_shallow(the_repository) ? "true" + : "false"); + continue; + } + if (!strcmp(arg, "--shared-index-path")) { + if (read_cache() < 0) + die(_("Could not read the index")); + if (the_index.split_index) { + const struct object_id *oid = &the_index.split_index->base_oid; + const char *path = git_path("sharedindex.%s", oid_to_hex(oid)); + strbuf_reset(&buf); + puts(relative_path(path, prefix, &buf)); + } + continue; + } + if (skip_prefix(arg, "--since=", &arg)) { + show_datestring("--max-age=", arg); + continue; + } + if (skip_prefix(arg, "--after=", &arg)) { + show_datestring("--max-age=", arg); + continue; + } + if (skip_prefix(arg, "--before=", &arg)) { + show_datestring("--min-age=", arg); + continue; + } + if (skip_prefix(arg, "--until=", &arg)) { + show_datestring("--min-age=", arg); + continue; + } + if (opt_with_value(arg, "--show-object-format", &arg)) { + const char *val = arg ? arg : "storage"; + + if (strcmp(val, "storage") && + strcmp(val, "input") && + strcmp(val, "output")) + die("unknown mode for --show-object-format: %s", + arg); + puts(the_hash_algo->name); + continue; + } + if (show_flag(arg) && verify) + die_no_single_rev(quiet); + continue; + } + + /* Not a flag argument */ + if (try_difference(arg)) + continue; + if (try_parent_shorthands(arg)) + continue; + name = arg; + type = NORMAL; + if (*arg == '^') { + name++; + type = REVERSED; + } + if (!get_oid_with_context(the_repository, name, + flags, &oid, &unused)) { + if (verify) + revs_count++; + else + show_rev(type, &oid, name); + continue; + } + if (verify) + die_no_single_rev(quiet); + if (has_dashdash) + die("bad revision '%s'", arg); + as_is = 1; + if (!show_file(arg, output_prefix)) + continue; + verify_filename(prefix, arg, 1); + } + strbuf_release(&buf); + if (verify) { + if (revs_count == 1) { + show_rev(type, &oid, name); + return 0; + } else if (revs_count == 0 && show_default()) + return 0; + die_no_single_rev(quiet); + } else + show_default(); + return 0; +} |