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![Junio C Hamano](/assets/img/avatar_default.png)
This makes sure that many commands that take refs on the command line to honor core.warnambiguousrefs configuration. Earlier, the commands affected by this patch did not read the configuration file. Signed-off-by: Junio C Hamano <junkio@cox.net>
164 lines
3.4 KiB
C
164 lines
3.4 KiB
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "cache.h"
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#include "exec_cmd.h"
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static void flush_buffer(const char *buf, unsigned long size)
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{
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while (size > 0) {
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long ret = xwrite(1, buf, size);
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if (ret < 0) {
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/* Ignore epipe */
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if (errno == EPIPE)
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break;
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die("git-cat-file: %s", strerror(errno));
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} else if (!ret) {
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die("git-cat-file: disk full?");
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}
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size -= ret;
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buf += ret;
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}
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}
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static int pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size)
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{
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/* the parser in tag.c is useless here. */
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const char *endp = buf + size;
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const char *cp = buf;
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while (cp < endp) {
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char c = *cp++;
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if (c != '\n')
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continue;
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if (7 <= endp - cp && !memcmp("tagger ", cp, 7)) {
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const char *tagger = cp;
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/* Found the tagger line. Copy out the contents
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* of the buffer so far.
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*/
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flush_buffer(buf, cp - buf);
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/*
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* Do something intelligent, like pretty-printing
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* the date.
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*/
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while (cp < endp) {
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if (*cp++ == '\n') {
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/* tagger to cp is a line
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* that has ident and time.
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*/
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const char *sp = tagger;
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char *ep;
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unsigned long date;
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long tz;
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while (sp < cp && *sp != '>')
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sp++;
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if (sp == cp) {
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/* give up */
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flush_buffer(tagger,
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cp - tagger);
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break;
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}
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while (sp < cp &&
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!('0' <= *sp && *sp <= '9'))
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sp++;
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flush_buffer(tagger, sp - tagger);
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date = strtoul(sp, &ep, 10);
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tz = strtol(ep, NULL, 10);
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sp = show_date(date, tz);
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flush_buffer(sp, strlen(sp));
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xwrite(1, "\n", 1);
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break;
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}
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}
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break;
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}
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if (cp < endp && *cp == '\n')
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/* end of header */
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break;
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}
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/* At this point, we have copied out the header up to the end of
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* the tagger line and cp points at one past \n. It could be the
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* next header line after the tagger line, or it could be another
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* \n that marks the end of the headers. We need to copy out the
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* remainder as is.
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*/
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if (cp < endp)
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flush_buffer(cp, endp - cp);
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return 0;
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}
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int main(int argc, char **argv)
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{
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unsigned char sha1[20];
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char type[20];
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void *buf;
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unsigned long size;
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int opt;
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setup_git_directory();
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git_config(git_default_config);
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if (argc != 3 || get_sha1(argv[2], sha1))
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usage("git-cat-file [-t|-s|-e|-p|<type>] <sha1>");
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opt = 0;
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if ( argv[1][0] == '-' ) {
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opt = argv[1][1];
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if ( !opt || argv[1][2] )
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opt = -1; /* Not a single character option */
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}
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buf = NULL;
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switch (opt) {
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case 't':
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if (!sha1_object_info(sha1, type, NULL)) {
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printf("%s\n", type);
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return 0;
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}
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break;
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case 's':
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if (!sha1_object_info(sha1, type, &size)) {
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printf("%lu\n", size);
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return 0;
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}
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break;
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case 'e':
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return !has_sha1_file(sha1);
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case 'p':
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if (get_sha1(argv[2], sha1) ||
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sha1_object_info(sha1, type, NULL))
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die("Not a valid object name %s", argv[2]);
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/* custom pretty-print here */
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if (!strcmp(type, "tree"))
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return execl_git_cmd("ls-tree", argv[2], NULL);
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buf = read_sha1_file(sha1, type, &size);
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if (!buf)
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die("Cannot read object %s", argv[2]);
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if (!strcmp(type, "tag"))
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return pprint_tag(sha1, buf, size);
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/* otherwise just spit out the data */
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break;
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case 0:
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buf = read_object_with_reference(sha1, argv[1], &size, NULL);
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break;
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default:
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die("git-cat-file: unknown option: %s\n", argv[1]);
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}
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if (!buf)
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die("git-cat-file %s: bad file", argv[2]);
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flush_buffer(buf, size);
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return 0;
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}
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