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-rw-r--r--cat-file.c119
-rwxr-xr-xgit-verify-tag.sh21
2 files changed, 125 insertions, 15 deletions
diff --git a/cat-file.c b/cat-file.c
index 96d66b430..1a613f3ee 100644
--- a/cat-file.c
+++ b/cat-file.c
@@ -4,6 +4,92 @@
* Copyright (C) Linus Torvalds, 2005
*/
#include "cache.h"
+#include "exec_cmd.h"
+
+static void flush_buffer(const char *buf, unsigned long size)
+{
+ while (size > 0) {
+ long ret = xwrite(1, buf, size);
+ if (ret < 0) {
+ /* Ignore epipe */
+ if (errno == EPIPE)
+ break;
+ die("git-cat-file: %s", strerror(errno));
+ } else if (!ret) {
+ die("git-cat-file: disk full?");
+ }
+ size -= ret;
+ buf += ret;
+ }
+}
+
+static int pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size)
+{
+ /* the parser in tag.c is useless here. */
+ const char *endp = buf + size;
+ const char *cp = buf;
+
+ while (cp < endp) {
+ char c = *cp++;
+ if (c != '\n')
+ continue;
+ if (7 <= endp - cp && !memcmp("tagger ", cp, 7)) {
+ const char *tagger = cp;
+
+ /* Found the tagger line. Copy out the contents
+ * of the buffer so far.
+ */
+ flush_buffer(buf, cp - buf);
+
+ /*
+ * Do something intelligent, like pretty-printing
+ * the date.
+ */
+ while (cp < endp) {
+ if (*cp++ == '\n') {
+ /* tagger to cp is a line
+ * that has ident and time.
+ */
+ const char *sp = tagger;
+ char *ep;
+ unsigned long date;
+ long tz;
+ while (sp < cp && *sp != '>')
+ sp++;
+ if (sp == cp) {
+ /* give up */
+ flush_buffer(tagger,
+ cp - tagger);
+ break;
+ }
+ while (sp < cp &&
+ !('0' <= *sp && *sp <= '9'))
+ sp++;
+ flush_buffer(tagger, sp - tagger);
+ date = strtoul(sp, &ep, 10);
+ tz = strtol(ep, NULL, 10);
+ sp = show_date(date, tz);
+ flush_buffer(sp, strlen(sp));
+ xwrite(1, "\n", 1);
+ break;
+ }
+ }
+ break;
+ }
+ if (cp < endp && *cp == '\n')
+ /* end of header */
+ break;
+ }
+ /* At this point, we have copied out the header up to the end of
+ * the tagger line and cp points at one past \n. It could be the
+ * next header line after the tagger line, or it could be another
+ * \n that marks the end of the headers. We need to copy out the
+ * remainder as is.
+ */
+ if (cp < endp)
+ flush_buffer(cp, endp - cp);
+ return 0;
+}
int main(int argc, char **argv)
{
@@ -15,7 +101,7 @@ int main(int argc, char **argv)
setup_git_directory();
if (argc != 3 || get_sha1(argv[2], sha1))
- usage("git-cat-file [-t|-s|-e|<type>] <sha1>");
+ usage("git-cat-file [-t|-s|-e|-p|<type>] <sha1>");
opt = 0;
if ( argv[1][0] == '-' ) {
@@ -43,6 +129,23 @@ int main(int argc, char **argv)
case 'e':
return !has_sha1_file(sha1);
+ case 'p':
+ if (get_sha1(argv[2], sha1) ||
+ sha1_object_info(sha1, type, NULL))
+ die("Not a valid object name %s", argv[2]);
+
+ /* custom pretty-print here */
+ if (!strcmp(type, "tree"))
+ return execl_git_cmd("ls-tree", argv[2], NULL);
+
+ buf = read_sha1_file(sha1, type, &size);
+ if (!buf)
+ die("Cannot read object %s", argv[2]);
+ if (!strcmp(type, "tag"))
+ return pprint_tag(sha1, buf, size);
+
+ /* otherwise just spit out the data */
+ break;
case 0:
buf = read_object_with_reference(sha1, argv[1], &size, NULL);
break;
@@ -54,18 +157,6 @@ int main(int argc, char **argv)
if (!buf)
die("git-cat-file %s: bad file", argv[2]);
- while (size > 0) {
- long ret = xwrite(1, buf, size);
- if (ret < 0) {
- /* Ignore epipe */
- if (errno == EPIPE)
- break;
- die("git-cat-file: %s", strerror(errno));
- } else if (!ret) {
- die("git-cat-file: disk full?");
- }
- size -= ret;
- buf += ret;
- }
+ flush_buffer(buf, size);
return 0;
}
diff --git a/git-verify-tag.sh b/git-verify-tag.sh
index 726b1e706..36f171b30 100755
--- a/git-verify-tag.sh
+++ b/git-verify-tag.sh
@@ -4,9 +4,21 @@ USAGE='<tag>'
SUBDIRECTORY_OK='Yes'
. git-sh-setup
+verbose=
+while case $# in 0) break;; esac
+do
+ case "$1" in
+ -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
+ verbose=t ;;
+ *)
+ break ;;
+ esac
+ shift
+done
+
if [ "$#" != "1" ]
then
- usage
+ usage
fi
type="$(git-cat-file -t "$1" 2>/dev/null)" ||
@@ -15,6 +27,13 @@ type="$(git-cat-file -t "$1" 2>/dev/null)" ||
test "$type" = tag ||
die "$1: cannot verify a non-tag object of type $type."
+case "$verbose" in
+t)
+ git-cat-file -p "$1" |
+ sed -n -e '/^-----BEGIN PGP SIGNATURE-----/q' -e p
+ ;;
+esac
+
git-cat-file tag "$1" >"$GIT_DIR/.tmp-vtag" || exit 1
cat "$GIT_DIR/.tmp-vtag" |
sed '/-----BEGIN PGP/Q' |