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authorLibravatar Linus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 12:40:18 -0700
committerLibravatar Linus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 12:40:18 -0700
commit7d60ad7cc948b1b9e1066a3e740c91651bdc7e8d (patch)
tree7108636195bd22054fc889ab6eb87b2a0eb98e4a
parentDo a very simple "merge-base" that finds the most recent common (diff)
downloadtgif-7d60ad7cc948b1b9e1066a3e740c91651bdc7e8d.tar.xz
Make "parse_commit" return the "struct revision" for the commit.
Also, make it a fatal error to pass in a non-commit object. The callers never checked, so better check here. This simplifies merge-base further. It's now so trivial that it's almost ridiculous.
-rw-r--r--merge-base.c5
-rw-r--r--revision.h6
2 files changed, 4 insertions, 7 deletions
diff --git a/merge-base.c b/merge-base.c
index 36ac42008c..dac5e4b5e0 100644
--- a/merge-base.c
+++ b/merge-base.c
@@ -46,10 +46,7 @@ int main(int argc, char **argv)
* That's some time off, though, and in the meantime we know
* that we have a solution to the eventual expense.
*/
- parse_commit(rev1);
- parse_commit(rev2);
-
- common = common_parent(lookup_rev(rev1), lookup_rev(rev2));
+ common = common_parent(parse_commit(rev1), parse_commit(rev2));
if (!common)
die("no common parent found");
printf("%s\n", sha1_to_hex(common->sha1));
diff --git a/revision.h b/revision.h
index f965f3fc5f..482729575c 100644
--- a/revision.h
+++ b/revision.h
@@ -129,7 +129,7 @@ static unsigned long parse_commit_date(const char *buf)
return date;
}
-static int parse_commit(unsigned char *sha1)
+static struct revision * parse_commit(unsigned char *sha1)
{
struct revision *rev = lookup_rev(sha1);
@@ -142,7 +142,7 @@ static int parse_commit(unsigned char *sha1)
rev->flags |= SEEN;
buffer = bufptr = read_sha1_file(sha1, type, &size);
if (!buffer || strcmp(type, "commit"))
- return -1;
+ die("%s is not a commit object", sha1_to_hex(sha1));
bufptr += 46; /* "tree " + "hex sha1" + "\n" */
while (!memcmp(bufptr, "parent ", 7) && !get_sha1_hex(bufptr+7, parent)) {
add_relationship(rev, parent);
@@ -152,7 +152,7 @@ static int parse_commit(unsigned char *sha1)
rev->date = parse_commit_date(bufptr);
free(buffer);
}
- return 0;
+ return rev;
}
#endif /* REVISION_H */