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cat-file --batch / --batch-check: do not exit if hashes are missing

Previously, cat-file --batch / --batch-check would silently exit if it
was passed a non-existent SHA1 on stdin.  Now it prints "<SHA1>
missing" as in all other cases (and as advertised in the
documentation).

Note that cat-file --batch-check (but not --batch) will still output
"error: unable to find <SHA1>" on stderr if a non-existent SHA1 is
passed, but this does not affect parsing its stdout.

Also, type <= 0 was previously using the potentially uninitialized
type variable (relying on it being 0); it is now being initialized.

Signed-off-by: Lea Wiemann <LeWiemann@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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commit 3c076dbe3cffee3b5cbf34759d627c47a417c145 1 parent 4e44ae4
Lea Wiemann authored gitster committed
Showing with 27 additions and 6 deletions.
  1. +6 −3 builtin-cat-file.c
  2. +21 −3 t/t1006-cat-file.sh
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9 builtin-cat-file.c
@@ -150,7 +150,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
static int batch_one_object(const char *obj_name, int print_contents)
{
unsigned char sha1[20];
- enum object_type type;
+ enum object_type type = 0;
unsigned long size;
void *contents = contents;
@@ -168,8 +168,11 @@ static int batch_one_object(const char *obj_name, int print_contents)
else
type = sha1_object_info(sha1, &size);
- if (type <= 0)
- return 1;
+ if (type <= 0) {
+ printf("%s missing\n", obj_name);
+ fflush(stdout);
+ return 0;
+ }
printf("%s %s %lu\n", sha1_to_hex(sha1), typename(type), size);
fflush(stdout);
View
24 t/t1006-cat-file.sh
@@ -174,9 +174,27 @@ do
'
done
-test_expect_success "--batch-check for a non-existent object" '
- test "deadbeef missing" = \
- "$(echo_without_newline deadbeef | git cat-file --batch-check)"
+test_expect_success "--batch-check for a non-existent named object" '
+ test "foobar42 missing
+foobar84 missing" = \
+ "$( ( echo foobar42; echo_without_newline foobar84; ) | git cat-file --batch-check)"
+'
+
+test_expect_success "--batch-check for a non-existent hash" '
+ test "0000000000000000000000000000000000000042 missing
+0000000000000000000000000000000000000084 missing" = \
+ "$( ( echo 0000000000000000000000000000000000000042;
+ echo_without_newline 0000000000000000000000000000000000000084; ) \
+ | git cat-file --batch-check)"
+'
+
+test_expect_success "--batch for an existent and a non-existent hash" '
+ test "$tag_sha1 tag $tag_size
+$tag_content
+0000000000000000000000000000000000000000 missing" = \
+ "$( ( echo $tag_sha1;
+ echo_without_newline 0000000000000000000000000000000000000000; ) \
+ | git cat-file --batch)"
'
test_expect_success "--batch-check for an emtpy line" '
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