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[PATCH] Use read_object_with_reference() in tar-tree

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This patch replaces the usage of read_tree_with_tree_or_commit_sha1()
with read_object_with_reference() in tar-tree.  As a result the code
that tries to figure out the commit time doesn't need to open the commit
object 'by hand' any more.

Signed-off-by: Rene Scharfe <lsrfire.ath.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Rene Scharfe 2005-04-28 22:19:02 -07:00 committed by Linus Torvalds
parent 40469ee9c6
commit db413479f1
1 changed files with 25 additions and 29 deletions
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54
tar-tree.c
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@ -291,35 +291,28 @@ static void traverse_tree(void *buffer, unsigned long size,
}
/* get commit time from committer line of commit object */
time_t commit_time(const unsigned char *sha1)
time_t commit_time(void * buffer, unsigned long size)
{
char type[20];
void *buffer;
unsigned long size;
time_t result = 0;
char *p = buffer;
buffer = read_sha1_file(sha1, type, &size);
if (buffer) {
char *p = buffer;
while (size > 0) {
char *endp = memchr(p, '\n', size);
if (!endp || endp == p)
while (size > 0) {
char *endp = memchr(p, '\n', size);
if (!endp || endp == p)
break;
*endp = '\0';
if (endp - p > 10 && !memcmp(p, "committer ", 10)) {
char *nump = strrchr(p, '>');
if (!nump)
break;
*endp = '\0';
if (endp - p > 10 && !memcmp(p, "committer ", 10)) {
char *nump = strrchr(p, '>');
if (!nump)
break;
nump++;
result = strtoul(nump, &endp, 10);
if (*endp != ' ')
result = 0;
break;
}
size -= endp - p - 1;
p = endp + 1;
nump++;
result = strtoul(nump, &endp, 10);
if (*endp != ' ')
result = 0;
break;
}
free(buffer);
size -= endp - p - 1;
p = endp + 1;
}
return result;
}
@ -329,7 +322,6 @@ int main(int argc, char **argv)
unsigned char sha1[20];
void *buffer;
unsigned long size;
unsigned char tree_sha1[20];
switch (argc) {
case 3:
@ -347,11 +339,15 @@ int main(int argc, char **argv)
if (!sha1_file_directory)
sha1_file_directory = DEFAULT_DB_ENVIRONMENT;
buffer = read_tree_with_tree_or_commit_sha1(sha1, &size, tree_sha1);
buffer = read_object_with_reference(sha1, "commit", &size, NULL);
if (buffer) {
archive_time = commit_time(buffer, size);
free(buffer);
}
buffer = read_object_with_reference(sha1, "tree", &size, NULL);
if (!buffer)
die("unable to read sha1 file");
if (memcmp(sha1, tree_sha1, 20)) /* is sha1 a commit object? */
archive_time = commit_time(sha1);
die("not a reference to a tag, commit or tree object: %s",
sha1_to_hex(sha1));
if (!archive_time)
archive_time = time(NULL);
if (basedir)