diff options
Diffstat (limited to 'builtin-rev-parse.c')
| -rw-r--r-- | builtin-rev-parse.c | 674 |
1 files changed, 0 insertions, 674 deletions
diff --git a/builtin-rev-parse.c b/builtin-rev-parse.c deleted file mode 100644 index 45bead6545..0000000000 --- a/builtin-rev-parse.c +++ /dev/null @@ -1,674 +0,0 @@ -/* - * rev-parse.c - * - * Copyright (C) Linus Torvalds, 2005 - */ -#include "cache.h" -#include "commit.h" -#include "refs.h" -#include "quote.h" -#include "builtin.h" -#include "parse-options.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; - -/* - * 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", - "--header", - "--max-age=", - "--max-count=", - "--min-age=", - "--no-merges", - "--objects", - "--objects-edge", - "--parents", - "--pretty", - "--remotes", - "--sparse", - "--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 unsigned char *sha1, const char *name) -{ - if (!(filter & DO_REVS)) - return; - def = NULL; - - if ((symbolic || abbrev_ref) && name) { - if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) { - unsigned char discard[20]; - 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; - } - } else { - show_with_type(type, name); - } - } - else if (abbrev) - show_with_type(type, find_unique_abbrev(sha1, abbrev)); - else - show_with_type(type, sha1_to_hex(sha1)); -} - -/* 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) { - unsigned char sha1[20]; - - def = NULL; - if (!get_sha1(s, sha1)) { - show_rev(NORMAL, sha1, s); - return 1; - } - } - return 0; -} - -static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) -{ - show_rev(NORMAL, sha1, refname); - return 0; -} - -static void show_datestring(const char *flag, const char *datestr) -{ - static char buffer[100]; - - /* date handling requires both flags and revs */ - if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS)) - return; - snprintf(buffer, sizeof(buffer), "%s%lu", flag, approxidate(datestr)); - show(buffer); -} - -static int show_file(const char *arg) -{ - show_default(); - if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) { - show(arg); - return 1; - } - return 0; -} - -static int try_difference(const char *arg) -{ - char *dotdot; - unsigned char sha1[20]; - unsigned char end[20]; - const char *next; - const char *this; - int symmetric; - - if (!(dotdot = strstr(arg, ".."))) - return 0; - next = dotdot + 2; - this = arg; - symmetric = (*next == '.'); - - *dotdot = 0; - next += symmetric; - - if (!*next) - next = "HEAD"; - if (dotdot == arg) - this = "HEAD"; - if (!get_sha1(this, sha1) && !get_sha1(next, end)) { - show_rev(NORMAL, end, next); - show_rev(symmetric ? NORMAL : REVERSED, sha1, this); - if (symmetric) { - struct commit_list *exclude; - struct commit *a, *b; - a = lookup_commit_reference(sha1); - b = lookup_commit_reference(end); - exclude = get_merge_bases(a, b, 1); - while (exclude) { - struct commit_list *n = exclude->next; - show_rev(REVERSED, - exclude->item->object.sha1,NULL); - free(exclude); - exclude = n; - } - } - return 1; - } - *dotdot = '.'; - return 0; -} - -static int try_parent_shorthands(const char *arg) -{ - char *dotdot; - unsigned char sha1[20]; - struct commit *commit; - struct commit_list *parents; - int parents_only; - - if ((dotdot = strstr(arg, "^!"))) - parents_only = 0; - else if ((dotdot = strstr(arg, "^@"))) - parents_only = 1; - - if (!dotdot || dotdot[2]) - return 0; - - *dotdot = 0; - if (get_sha1(arg, sha1)) - return 0; - - if (!parents_only) - show_rev(NORMAL, sha1, arg); - commit = lookup_commit_reference(sha1); - for (parents = commit->parents; parents; parents = parents->next) - show_rev(parents_only ? NORMAL : REVERSED, - parents->item->object.sha1, arg); - - 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) - strbuf_addf(parsed, " -%c", o->short_name); - else - strbuf_addf(parsed, " --%s", o->long_name); - if (arg) { - strbuf_addch(parsed, ' '); - sq_quote_buf(parsed, arg); - } - return 0; -} - -static const char *skipspaces(const char *s) -{ - while (isspace(*s)) - s++; - return s; -} - -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[] = { - "git rev-parse --parseopt [options] -- [<args>...]", - NULL - }; - static struct option parseopt_opts[] = { - OPT_BOOLEAN(0, "keep-dashdash", &keep_dashdash, - "keep the `--` passed as an arg"), - OPT_BOOLEAN(0, "stop-at-non-option", &stop_at_non_option, - "stop parsing after the " - "first non-option argument"), - OPT_END(), - }; - - 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, '\n') == 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>)[=?]? SP+ <help> */ - while (strbuf_getline(&sb, stdin, '\n') != EOF) { - const char *s; - struct option *o; - - if (!sb.len) - continue; - - ALLOC_GROW(opts, onb + 1, osz); - memset(opts + onb, 0, sizeof(opts[onb])); - - o = &opts[onb++]; - s = strchr(sb.buf, ' '); - if (!s || *sb.buf == ' ') { - o->type = OPTION_GROUP; - o->help = xstrdup(skipspaces(sb.buf)); - continue; - } - - o->type = OPTION_CALLBACK; - o->help = xstrdup(skipspaces(s)); - o->value = &parsed; - o->flags = PARSE_OPT_NOARG; - o->callback = &parseopt_dump; - while (s > sb.buf && strchr("*=?!", s[-1])) { - switch (*--s) { - case '=': - o->flags &= ~PARSE_OPT_NOARG; - break; - case '?': - o->flags &= ~PARSE_OPT_NOARG; - o->flags |= PARSE_OPT_OPTARG; - break; - case '!': - o->flags |= PARSE_OPT_NONEG; - break; - case '*': - o->flags |= PARSE_OPT_HIDDEN; - break; - } - } - - 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); - } - } - 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); - - strbuf_addf(&parsed, " --"); - sq_quote_argv(&parsed, argv, 0); - 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, 0); - 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"); -} - -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; - unsigned char sha1[20]; - const char *name = NULL; - - 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); - - prefix = setup_git_directory(); - git_config(git_default_config, NULL); - for (i = 1; i < argc; i++) { - const char *arg = argv[i]; - - if (as_is) { - if (show_file(arg) && as_is < 2) - verify_filename(prefix, arg); - 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 (!prefixcmp(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); - continue; - } - if (!strcmp(arg, "--default")) { - def = argv[i+1]; - i++; - 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; - continue; - } - if (!strcmp(arg, "--short") || - !prefixcmp(arg, "--short=")) { - filter &= ~(DO_FLAGS|DO_NOREV); - verify = 1; - abbrev = DEFAULT_ABBREV; - if (arg[7] == '=') - abbrev = strtoul(arg + 8, NULL, 10); - if (abbrev < MINIMUM_ABBREV) - abbrev = MINIMUM_ABBREV; - else if (40 <= abbrev) - abbrev = 40; - 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 (!prefixcmp(arg, "--abbrev-ref") && - (!arg[12] || arg[12] == '=')) { - abbrev_ref = 1; - abbrev_ref_strict = warn_ambiguous_refs; - if (arg[12] == '=') { - if (!strcmp(arg + 13, "strict")) - abbrev_ref_strict = 1; - else if (!strcmp(arg + 13, "loose")) - abbrev_ref_strict = 0; - else - die("unknown mode for %s", arg); - } - continue; - } - if (!strcmp(arg, "--all")) { - for_each_ref(show_reference, NULL); - continue; - } - if (!strcmp(arg, "--branches")) { - for_each_branch_ref(show_reference, NULL); - continue; - } - if (!strcmp(arg, "--tags")) { - for_each_tag_ref(show_reference, NULL); - continue; - } - if (!strcmp(arg, "--remotes")) { - for_each_remote_ref(show_reference, NULL); - continue; - } - if (!strcmp(arg, "--show-prefix")) { - if (prefix) - puts(prefix); - 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")) { - const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); - static char cwd[PATH_MAX]; - if (gitdir) { - puts(gitdir); - continue; - } - if (!prefix) { - puts(".git"); - continue; - } - if (!getcwd(cwd, PATH_MAX)) - die_errno("unable to get current working directory"); - printf("%s/.git\n", cwd); - 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 (!prefixcmp(arg, "--since=")) { - show_datestring("--max-age=", arg+8); - continue; - } - if (!prefixcmp(arg, "--after=")) { - show_datestring("--max-age=", arg+8); - continue; - } - if (!prefixcmp(arg, "--before=")) { - show_datestring("--min-age=", arg+9); - continue; - } - if (!prefixcmp(arg, "--until=")) { - show_datestring("--min-age=", arg+8); - 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_sha1(name, sha1)) { - if (verify) - revs_count++; - else - show_rev(type, sha1, name); - continue; - } - if (verify) - die_no_single_rev(quiet); - as_is = 1; - if (!show_file(arg)) - continue; - verify_filename(prefix, arg); - } - if (verify) { - if (revs_count == 1) { - show_rev(type, sha1, name); - return 0; - } else if (revs_count == 0 && show_default()) - return 0; - die_no_single_rev(quiet); - } else - show_default(); - return 0; -} |