diff options
Diffstat (limited to 'rev-parse.c')
| -rw-r--r-- | rev-parse.c | 347 |
1 files changed, 0 insertions, 347 deletions
diff --git a/rev-parse.c b/rev-parse.c deleted file mode 100644 index f90e999e60..0000000000 --- a/rev-parse.c +++ /dev/null @@ -1,347 +0,0 @@ -/* - * rev-parse.c - * - * Copyright (C) Linus Torvalds, 2005 - */ -#include "cache.h" -#include "commit.h" -#include "refs.h" -#include "quote.h" - -#define DO_REVS 1 -#define DO_NOREV 2 -#define DO_FLAGS 4 -#define DO_NONFLAGS 8 -static int filter = ~0; - -static char *def = NULL; - -#define NORMAL 0 -#define REVERSED 1 -static int show_type = NORMAL; -static int symbolic = 0; -static int abbrev = 0; -static int output_sq = 0; - -static int revs_count = 0; - -/* - * 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", - "--header", - "--max-age=", - "--max-count=", - "--min-age=", - "--no-merges", - "--objects", - "--objects-edge", - "--parents", - "--pretty", - "--sparse", - "--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); -} - -/* 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; - revs_count++; - - if (type != show_type) - putchar('^'); - if (symbolic && name) - show(name); - else if (abbrev) - show(find_unique_abbrev(sha1, abbrev)); - else - show(sha1_to_hex(sha1)); -} - -/* Output a flag, only if filter allows it. */ -static int show_flag(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 void show_default(void) -{ - char *s = def; - - if (s) { - unsigned char sha1[20]; - - def = NULL; - if (!get_sha1(s, sha1)) { - show_rev(NORMAL, sha1, s); - return; - } - } -} - -static int show_reference(const char *refname, const unsigned char *sha1) -{ - 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; -} - -int main(int argc, char **argv) -{ - int i, as_is = 0, verify = 0; - unsigned char sha1[20]; - const char *prefix = setup_git_directory(); - - for (i = 1; i < argc; i++) { - struct stat st; - char *arg = argv[i]; - char *dotdot; - - if (as_is) { - show_file(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 (!strncmp(arg,"-n",2)) { - if ((filter & DO_FLAGS) && (filter & DO_REVS)) - show(arg); - continue; - } - - if (*arg == '-') { - if (!strcmp(arg, "--")) { - as_is = 1; - /* 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, "--short") || - !strncmp(arg, "--short=", 8)) { - 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 = 1; - continue; - } - if (!strcmp(arg, "--all")) { - for_each_ref(show_reference); - continue; - } - if (!strcmp(arg, "--show-prefix")) { - if (prefix) - puts(prefix); - continue; - } - if (!strcmp(arg, "--show-cdup")) { - const char *pfx = prefix; - 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("unable to get current working directory"); - printf("%s/.git\n", cwd); - continue; - } - if (!strncmp(arg, "--since=", 8)) { - show_datestring("--max-age=", arg+8); - continue; - } - if (!strncmp(arg, "--after=", 8)) { - show_datestring("--max-age=", arg+8); - continue; - } - if (!strncmp(arg, "--before=", 9)) { - show_datestring("--min-age=", arg+9); - continue; - } - if (!strncmp(arg, "--until=", 8)) { - show_datestring("--min-age=", arg+8); - continue; - } - if (show_flag(arg) && verify) - die("Needed a single revision"); - continue; - } - - /* Not a flag argument */ - dotdot = strstr(arg, ".."); - if (dotdot) { - unsigned char end[20]; - char *n = dotdot+2; - *dotdot = 0; - if (!get_sha1(arg, sha1)) { - if (!*n) - n = "HEAD"; - if (!get_sha1(n, end)) { - show_rev(NORMAL, end, n); - show_rev(REVERSED, sha1, arg); - continue; - } - } - *dotdot = '.'; - } - if (!get_sha1(arg, sha1)) { - show_rev(NORMAL, sha1, arg); - continue; - } - if (*arg == '^' && !get_sha1(arg+1, sha1)) { - show_rev(REVERSED, sha1, arg+1); - continue; - } - as_is = 1; - if (!show_file(arg)) - continue; - if (verify) - die("Needed a single revision"); - if (lstat(arg, &st) < 0) - die("'%s': %s", arg, strerror(errno)); - } - show_default(); - if (verify && revs_count != 1) - die("Needed a single revision"); - return 0; -} |