diff --git a/pack-objects.c b/pack-objects.c
index fc969e342a80c99a7455daf32696c828123ad1b9..ed24a33300e6baa2b64c5f6c28594494a0b3ebdf 100644 (file)
--- a/pack-objects.c
+++ b/pack-objects.c
#include "pack.h"
#include "csum-file.h"
-static const char pack_usage[] = "git-pack-objects [--window=N] [--depth=N] {--stdout | base-name} < object-list";
+static const char pack_usage[] = "git-pack-objects [--incremental] [--window=N] [--depth=N] {--stdout | base-name} < object-list";
struct object_entry {
unsigned char sha1[20];
struct object_entry *delta;
};
+static unsigned char object_list_sha1[20];
+static int non_empty = 0;
+static int incremental = 0;
static struct object_entry **sorted_by_sha, **sorted_by_type;
static struct object_entry *objects = NULL;
static int nr_objects = 0, nr_alloc = 0;
if (!otherbuf)
die("unable to read %s", sha1_to_hex(entry->delta->sha1));
delta_buf = diff_delta(otherbuf, othersize,
- buf, size, &delta_size, ~0UL);
+ buf, size, &delta_size, 0);
if (!delta_buf || delta_size != entry->delta_size)
die("delta size changed");
free(buf);
if (!base_name)
f = sha1fd(1, "<stdout>");
else
- f = sha1create("%s.%s", base_name, "pack");
+ f = sha1create("%s-%s.%s", base_name, sha1_to_hex(object_list_sha1), "pack");
hdr.hdr_signature = htonl(PACK_SIGNATURE);
hdr.hdr_version = htonl(PACK_VERSION);
hdr.hdr_entries = htonl(nr_objects);
static void write_index_file(void)
{
int i;
- struct sha1file *f = sha1create("%s.%s", base_name, "idx");
+ struct sha1file *f = sha1create("%s-%s.%s", base_name, sha1_to_hex(object_list_sha1), "idx");
struct object_entry **list = sorted_by_sha;
struct object_entry **last = list + nr_objects;
unsigned int array[256];
sha1close(f, NULL, 1);
}
-static void add_object_entry(unsigned char *sha1, unsigned int hash)
+static int add_object_entry(unsigned char *sha1, unsigned int hash)
{
unsigned int idx = nr_objects;
struct object_entry *entry;
+ if (incremental && has_sha1_pack(sha1))
+ return 0;
+
if (idx >= nr_alloc) {
unsigned int needed = (idx + 1024) * 3 / 2;
objects = xrealloc(objects, needed * sizeof(*entry));
memcpy(entry->sha1, sha1, 20);
entry->hash = hash;
nr_objects = idx+1;
+ return 1;
}
static void check_object(struct object_entry *entry)
int main(int argc, char **argv)
{
+ SHA_CTX ctx;
char line[PATH_MAX + 20];
int window = 10, depth = 10, pack_to_stdout = 0;
int i;
const char *arg = argv[i];
if (*arg == '-') {
+ if (!strcmp("--non-empty", arg)) {
+ non_empty = 1;
+ continue;
+ }
+ if (!strcmp("--incremental", arg)) {
+ incremental = 1;
+ continue;
+ }
if (!strncmp("--window=", arg, 9)) {
char *end;
window = strtoul(arg+9, &end, 0);
if (pack_to_stdout != !base_name)
usage(pack_usage);
+ SHA1_Init(&ctx);
while (fgets(line, sizeof(line), stdin) != NULL) {
unsigned int hash;
char *p;
continue;
hash = hash * 11 + c;
}
- add_object_entry(sha1, hash);
+ if (add_object_entry(sha1, hash))
+ SHA1_Update(&ctx, sha1, 20);
}
+ SHA1_Final(object_list_sha1, &ctx);
+ if (non_empty && !nr_objects)
+ return 0;
get_object_details();
fprintf(stderr, "Packing %d objects\n", nr_objects);
find_deltas(sorted_by_type, window+1, depth);
write_pack_file();
- if (!pack_to_stdout)
+ if (!pack_to_stdout) {
write_index_file();
+ puts(sha1_to_hex(object_list_sha1));
+ }
return 0;
}