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-rw-r--r--builtin/rev-parse.c1096
1 files changed, 1096 insertions, 0 deletions
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
new file mode 100644
index 0000000..1c344d7
--- /dev/null
+++ b/builtin/rev-parse.c
@@ -0,0 +1,1096 @@
+/*
+ * rev-parse.c
+ *
+ * Copyright (C) Linus Torvalds, 2005
+ */
+#define USE_THE_INDEX_VARIABLE
+#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"
+#include "shallow.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 ref_exclusions ref_excludes = REF_EXCLUSIONS_INIT;
+
+/*
+ * 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, 0)) {
+ 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 UNUSED, void *cb_data UNUSED)
+{
+ 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 UNUSED, void *cb_data UNUSED)
+{
+ 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)
+ s = help;
+
+ if (s == sb.buf)
+ die(_("missing opt-spec before option flags"));
+
+ 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_exclusions(&ref_excludes);
+}
+
+enum format_type {
+ /* We would like a relative path. */
+ FORMAT_RELATIVE,
+ /* We would like a canonical absolute path. */
+ FORMAT_CANONICAL,
+ /* We would like the default behavior. */
+ FORMAT_DEFAULT,
+};
+
+enum default_type {
+ /* Our default is a relative path. */
+ DEFAULT_RELATIVE,
+ /* Our default is a relative path if there's a shared root. */
+ DEFAULT_RELATIVE_IF_SHARED,
+ /* Our default is a canonical absolute path. */
+ DEFAULT_CANONICAL,
+ /* Our default is not to modify the item. */
+ DEFAULT_UNMODIFIED,
+};
+
+static void print_path(const char *path, const char *prefix, enum format_type format, enum default_type def)
+{
+ char *cwd = NULL;
+ /*
+ * We don't ever produce a relative path if prefix is NULL, so set the
+ * prefix to the current directory so that we can produce a relative
+ * path whenever possible. If we're using RELATIVE_IF_SHARED mode, then
+ * we want an absolute path unless the two share a common prefix, so don't
+ * set it in that case, since doing so causes a relative path to always
+ * be produced if possible.
+ */
+ if (!prefix && (format != FORMAT_DEFAULT || def != DEFAULT_RELATIVE_IF_SHARED))
+ prefix = cwd = xgetcwd();
+ if (format == FORMAT_DEFAULT && def == DEFAULT_UNMODIFIED) {
+ puts(path);
+ } else if (format == FORMAT_RELATIVE ||
+ (format == FORMAT_DEFAULT && def == DEFAULT_RELATIVE)) {
+ /*
+ * In order for relative_path to work as expected, we need to
+ * make sure that both paths are absolute paths. If we don't,
+ * we can end up with an unexpected absolute path that the user
+ * didn't want.
+ */
+ struct strbuf buf = STRBUF_INIT, realbuf = STRBUF_INIT, prefixbuf = STRBUF_INIT;
+ if (!is_absolute_path(path)) {
+ strbuf_realpath_forgiving(&realbuf, path, 1);
+ path = realbuf.buf;
+ }
+ if (!is_absolute_path(prefix)) {
+ strbuf_realpath_forgiving(&prefixbuf, prefix, 1);
+ prefix = prefixbuf.buf;
+ }
+ puts(relative_path(path, prefix, &buf));
+ strbuf_release(&buf);
+ strbuf_release(&realbuf);
+ strbuf_release(&prefixbuf);
+ } else if (format == FORMAT_DEFAULT && def == DEFAULT_RELATIVE_IF_SHARED) {
+ struct strbuf buf = STRBUF_INIT;
+ puts(relative_path(path, prefix, &buf));
+ strbuf_release(&buf);
+ } else {
+ struct strbuf buf = STRBUF_INIT;
+ strbuf_realpath_forgiving(&buf, path, 1);
+ puts(buf.buf);
+ strbuf_release(&buf);
+ }
+ free(cwd);
+}
+
+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;
+ int seen_end_of_options = 0;
+ enum format_type format = FORMAT_DEFAULT;
+
+ 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 (as_is) {
+ if (show_file(arg, output_prefix) && as_is < 2)
+ verify_filename(prefix, arg, 0);
+ continue;
+ }
+
+ if (!seen_end_of_options) {
+ 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;
+
+ prepare_repo_settings(the_repository);
+ the_repository->settings.command_requires_full_index = 0;
+ }
+
+ 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 (!seen_end_of_options && *arg == '-') {
+ if (!strcmp(arg, "--git-path")) {
+ if (!argv[i + 1])
+ die(_("--git-path requires an argument"));
+ strbuf_reset(&buf);
+ print_path(git_path("%s", argv[i + 1]), prefix,
+ format,
+ DEFAULT_RELATIVE_IF_SHARED);
+ i++;
+ 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 (opt_with_value(arg, "--path-format", &arg)) {
+ if (!arg)
+ die(_("--path-format requires an argument"));
+ if (!strcmp(arg, "absolute")) {
+ format = FORMAT_CANONICAL;
+ } else if (!strcmp(arg, "relative")) {
+ format = FORMAT_RELATIVE;
+ } else {
+ die(_("unknown argument to --path-format: %s"), arg);
+ }
+ 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_exclusions(&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);
+ for_each_fullref_in("refs/bisect/good", anti_reference, NULL);
+ continue;
+ }
+ if (opt_with_value(arg, "--branches", &arg)) {
+ if (ref_excludes.hidden_refs_configured)
+ return error(_("--exclude-hidden cannot be used together with --branches"));
+ handle_ref_opt(arg, "refs/heads/");
+ continue;
+ }
+ if (opt_with_value(arg, "--tags", &arg)) {
+ if (ref_excludes.hidden_refs_configured)
+ return error(_("--exclude-hidden cannot be used together with --tags"));
+ 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)) {
+ if (ref_excludes.hidden_refs_configured)
+ return error(_("--exclude-hidden cannot be used together with --remotes"));
+ handle_ref_opt(arg, "refs/remotes/");
+ continue;
+ }
+ if (skip_prefix(arg, "--exclude=", &arg)) {
+ add_ref_exclusion(&ref_excludes, arg);
+ continue;
+ }
+ if (skip_prefix(arg, "--exclude-hidden=", &arg)) {
+ exclude_hidden_refs(&ref_excludes, arg);
+ continue;
+ }
+ if (!strcmp(arg, "--show-toplevel")) {
+ const char *work_tree = get_git_work_tree();
+ if (work_tree)
+ print_path(work_tree, prefix, format, DEFAULT_UNMODIFIED);
+ else
+ die(_("this operation must be run in a work tree"));
+ continue;
+ }
+ if (!strcmp(arg, "--show-superproject-working-tree")) {
+ struct strbuf superproject = STRBUF_INIT;
+ if (get_superproject_working_tree(&superproject))
+ print_path(superproject.buf, prefix, format, DEFAULT_UNMODIFIED);
+ strbuf_release(&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;
+ enum format_type wanted = format;
+ if (arg[2] == 'g') { /* --git-dir */
+ if (gitdir) {
+ print_path(gitdir, prefix, format, DEFAULT_UNMODIFIED);
+ continue;
+ }
+ if (!prefix) {
+ print_path(".git", prefix, format, DEFAULT_UNMODIFIED);
+ continue;
+ }
+ } else { /* --absolute-git-dir */
+ wanted = FORMAT_CANONICAL;
+ if (!gitdir && !prefix)
+ gitdir = ".git";
+ if (gitdir) {
+ struct strbuf realpath = STRBUF_INIT;
+ strbuf_realpath(&realpath, gitdir, 1);
+ puts(realpath.buf);
+ strbuf_release(&realpath);
+ continue;
+ }
+ }
+ cwd = xgetcwd();
+ len = strlen(cwd);
+ strbuf_reset(&buf);
+ strbuf_addf(&buf, "%s%s.git", cwd, len && cwd[len-1] != '/' ? "/" : "");
+ free(cwd);
+ print_path(buf.buf, prefix, wanted, DEFAULT_CANONICAL);
+ continue;
+ }
+ if (!strcmp(arg, "--git-common-dir")) {
+ print_path(get_git_common_dir(), prefix, format, DEFAULT_RELATIVE_IF_SHARED);
+ 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 (repo_read_index(the_repository) < 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));
+ print_path(path, prefix, format, DEFAULT_RELATIVE);
+ }
+ 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 (!strcmp(arg, "--end-of-options")) {
+ seen_end_of_options = 1;
+ if (filter & (DO_FLAGS | DO_REVS))
+ show_file(arg, 0);
+ 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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 09:30:02 +0000