diff options
Diffstat (limited to 'upload-pack.c')
| -rw-r--r-- | upload-pack.c | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/upload-pack.c b/upload-pack.c index 18b8e1a..b454c9e 100644 --- a/upload-pack.c +++ b/upload-pack.c @@ -4,11 +4,37 @@ static const char upload_pack_usage[] = "git-upload-pack <dir>"; +#define MAX_HAS (16) +#define MAX_NEEDS (16) +static int nr_has = 0, nr_needs = 0; +static unsigned char has_sha1[MAX_HAS][20]; +static unsigned char needs_sha1[MAX_NEEDS][20]; + +static void create_pack_file(void) +{ + /* + * Here, we should do + * + * git-rev-list --objects needs_sha1 --not has_sha1 | + * git-pack-objects --stdout + * + * but we don't. + */ +} + static int got_sha1(char *hex, unsigned char *sha1) { + int nr; if (get_sha1_hex(hex, sha1)) die("git-upload-pack: expected SHA1 object, got '%s'", hex); - return has_sha1_file(sha1); + if (!has_sha1_file(sha1)) + return 0; + nr = nr_has; + if (nr < MAX_HAS) { + memcpy(has_sha1[nr], sha1, 20); + nr_has = nr+1; + } + return 1; } static int get_common_commits(void) @@ -55,6 +81,29 @@ static int get_common_commits(void) return 0; } +static int receive_needs(void) +{ + static char line[1000]; + int len, needs; + + needs = 0; + for (;;) { + len = packet_read_line(0, line, sizeof(line)); + if (!len) + return needs; + + /* + * This is purely theoretical right now: git-fetch-pack only + * ever asks for a single HEAD + */ + if (needs >= MAX_NEEDS) + die("I'm only doing a max of %d requests", MAX_NEEDS); + if (strncmp("want ", line, 5) || get_sha1_hex(line+5, needs_sha1[needs])) + die("git-upload-pack: protocol error, expected to get sha, not '%s'", line); + needs++; + } +} + static int send_ref(const char *refname, const unsigned char *sha1) { packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname); @@ -65,7 +114,11 @@ static int upload_pack(void) { for_each_ref(send_ref); packet_flush(1); + nr_needs = receive_needs(); + if (!nr_needs) + return 0; get_common_commits(); + create_pack_file(); return 0; } |