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authorNicolas Pitre <nico@cam.org>2007-04-09 21:32:03 (GMT)
committerJunio C Hamano <junkio@cox.net>2007-04-10 19:48:14 (GMT)
commit4ba7d711539122c21bd44af06b6cab4fc4f65a74 (patch)
treec3a073216a0007c1461bcd9f433efe0386c80290 /index-pack.c
parent8c681e07c91b544756e2631493ebc15abd1e8589 (diff)
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allow forcing index v2 and 64-bit offset treshold
This is necessary for testing the new capabilities in some automated way without having an actual 4GB+ pack. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'index-pack.c')
-rw-r--r--index-pack.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/index-pack.c b/index-pack.c
index a833f64..7aad261 100644
--- a/index-pack.c
+++ b/index-pack.c
@@ -671,6 +671,9 @@ static void readjust_pack_header_and_sha1(unsigned char *sha1)
write_or_die(output_fd, sha1, 20);
}
+static uint32_t index_default_version = 1;
+static uint32_t index_off32_limit = 0x7fffffff;
+
static int sha1_compare(const void *_a, const void *_b)
{
struct object_entry *a = *(struct object_entry **)_a;
@@ -719,7 +722,7 @@ static const char *write_index_file(const char *index_name, unsigned char *sha1)
f = sha1fd(fd, index_name);
/* if last object's offset is >= 2^31 we should use index V2 */
- index_version = (objects[nr_objects-1].offset >> 31) ? 2 : 1;
+ index_version = (objects[nr_objects-1].offset >> 31) ? 2 : index_default_version;
/* index versions 2 and above need a header */
if (index_version >= 2) {
@@ -779,7 +782,7 @@ static const char *write_index_file(const char *index_name, unsigned char *sha1)
list = sorted_by_sha;
for (i = 0; i < nr_objects; i++) {
struct object_entry *obj = *list++;
- uint32_t offset = (obj->offset <= 0x7fffffff) ?
+ uint32_t offset = (obj->offset <= index_off32_limit) ?
obj->offset : (0x80000000 | nr_large_offset++);
offset = htonl(offset);
sha1write(f, &offset, 4);
@@ -790,7 +793,7 @@ static const char *write_index_file(const char *index_name, unsigned char *sha1)
while (nr_large_offset) {
struct object_entry *obj = *list++;
uint64_t offset = obj->offset;
- if (offset > 0x7fffffff) {
+ if (offset > index_off32_limit) {
uint32_t split[2];
split[0] = htonl(offset >> 32);
split[1] = htonl(offset & 0xffffffff);
@@ -929,6 +932,15 @@ int main(int argc, char **argv)
if (index_name || (i+1) >= argc)
usage(index_pack_usage);
index_name = argv[++i];
+ } else if (!prefixcmp(arg, "--index-version=")) {
+ char *c;
+ index_default_version = strtoul(arg + 16, &c, 10);
+ if (index_default_version > 2)
+ die("bad %s", arg);
+ if (*c == ',')
+ index_off32_limit = strtoul(c+1, &c, 0);
+ if (*c || index_off32_limit & 0x80000000)
+ die("bad %s", arg);
} else
usage(index_pack_usage);
continue;