#include "cache.h"
#include "refs.h"
#include "pkt-line.h"
+#include "tag.h"
+#include "object.h"
-static const char upload_pack_usage[] = "git-upload-pack <dir>";
+static const char upload_pack_usage[] = "git-upload-pack [--strict] [--timeout=nn] <dir>";
-#define MAX_HAS (16)
-#define MAX_NEEDS (256)
-static int nr_has = 0, nr_needs = 0;
+#define OUR_REF (1U << 1)
+#define WANTED (1U << 2)
+#define MAX_HAS 256
+#define MAX_NEEDS 256
+static int nr_has = 0, nr_needs = 0, nr_our_refs = 0;
static unsigned char has_sha1[MAX_HAS][20];
static unsigned char needs_sha1[MAX_NEEDS][20];
+static unsigned int timeout = 0;
+
+static void reset_timeout(void)
+{
+ alarm(timeout);
+}
static int strip(char *line, int len)
{
{
int fd[2];
pid_t pid;
+ int create_full_pack = (nr_our_refs == nr_needs && !nr_has);
if (pipe(fd) < 0)
die("git-upload-pack: unable to create pipe");
if (!pid) {
int i;
- int args = nr_has + nr_needs + 5;
- char **argv = xmalloc(args * sizeof(char *));
- char *buf = xmalloc(args * 45);
- char **p = argv;
+ int args;
+ char **argv;
+ char *buf;
+ char **p;
+
+ if (create_full_pack)
+ args = 10;
+ else
+ args = nr_has + nr_needs + 5;
+ argv = xmalloc(args * sizeof(char *));
+ buf = xmalloc(args * 45);
+ p = argv;
dup2(fd[1], 1);
close(0);
close(fd[1]);
*p++ = "git-rev-list";
*p++ = "--objects";
- for (i = 0; i < nr_needs; i++) {
- *p++ = buf;
- memcpy(buf, sha1_to_hex(needs_sha1[i]), 41);
- buf += 41;
- }
- for (i = 0; i < nr_has; i++) {
- *p++ = buf;
- *buf++ = '^';
- memcpy(buf, sha1_to_hex(has_sha1[i]), 41);
- buf += 41;
+ if (create_full_pack || MAX_NEEDS <= nr_needs)
+ *p++ = "--all";
+ else {
+ for (i = 0; i < nr_needs; i++) {
+ *p++ = buf;
+ memcpy(buf, sha1_to_hex(needs_sha1[i]), 41);
+ buf += 41;
+ }
}
+ if (!create_full_pack)
+ for (i = 0; i < nr_has; i++) {
+ *p++ = buf;
+ *buf++ = '^';
+ memcpy(buf, sha1_to_hex(has_sha1[i]), 41);
+ buf += 41;
+ }
*p++ = NULL;
execvp("git-rev-list", argv);
die("git-upload-pack: unable to exec git-rev-list");
for(;;) {
len = packet_read_line(0, line, sizeof(line));
+ reset_timeout();
if (!len) {
packet_write(1, "NAK\n");
for (;;) {
len = packet_read_line(0, line, sizeof(line));
+ reset_timeout();
if (!len)
continue;
len = strip(line, len);
needs = 0;
for (;;) {
+ struct object *o;
+ unsigned char dummy[20], *sha1_buf;
len = packet_read_line(0, line, sizeof(line));
+ reset_timeout();
if (!len)
return needs;
- /*
- * This is purely theoretical right now: git-fetch-pack only
- * ever asks for a single HEAD
+ sha1_buf = dummy;
+ if (needs == MAX_NEEDS) {
+ fprintf(stderr,
+ "warning: supporting only a max of %d requests. "
+ "sending everything instead.\n",
+ MAX_NEEDS);
+ }
+ else if (needs < MAX_NEEDS)
+ sha1_buf = needs_sha1[needs];
+
+ if (strncmp("want ", line, 5) || get_sha1_hex(line+5, sha1_buf))
+ die("git-upload-pack: protocol error, "
+ "expected to get sha, not '%s'", line);
+
+ /* We have sent all our refs already, and the other end
+ * should have chosen out of them; otherwise they are
+ * asking for nonsense.
+ *
+ * Hmph. We may later want to allow "want" line that
+ * asks for something like "master~10" (symbolic)...
+ * would it make sense? I don't know.
*/
- 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++;
+ o = lookup_object(sha1_buf);
+ if (!o || !(o->flags & OUR_REF))
+ die("git-upload-pack: not our ref %s", line+5);
+ if (!(o->flags & WANTED)) {
+ o->flags |= WANTED;
+ needs++;
+ }
}
}
static int send_ref(const char *refname, const unsigned char *sha1)
{
+ struct object *o = parse_object(sha1);
+
packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname);
+ if (!(o->flags & OUR_REF)) {
+ o->flags |= OUR_REF;
+ nr_our_refs++;
+ }
+ if (o->type == tag_type) {
+ o = deref_tag(o);
+ packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname);
+ }
return 0;
}
static int upload_pack(void)
{
+ reset_timeout();
head_ref(send_ref);
for_each_ref(send_ref);
packet_flush(1);
int main(int argc, char **argv)
{
const char *dir;
- if (argc != 2)
+ int i;
+ int strict = 0;
+
+ for (i = 1; i < argc; i++) {
+ char *arg = argv[i];
+
+ if (arg[0] != '-')
+ break;
+ if (!strcmp(arg, "--strict")) {
+ strict = 1;
+ continue;
+ }
+ if (!strncmp(arg, "--timeout=", 10)) {
+ timeout = atoi(arg+10);
+ continue;
+ }
+ if (!strcmp(arg, "--")) {
+ i++;
+ break;
+ }
+ }
+
+ if (i != argc-1)
usage(upload_pack_usage);
- dir = argv[1];
+ dir = argv[i];
/* chdir to the directory. If that fails, try appending ".git" */
if (chdir(dir) < 0) {
- if (chdir(mkpath("%s.git", dir)) < 0)
+ if (strict || chdir(mkpath("%s.git", dir)) < 0)
die("git-upload-pack unable to chdir to %s", dir);
}
- chdir(".git");
+ if (!strict)
+ chdir(".git");
+
if (access("objects", X_OK) || access("refs", X_OK))
die("git-upload-pack: %s doesn't seem to be a git archive", dir);
+
putenv("GIT_DIR=.");
upload_pack();
return 0;
projects / git.git / blobdiff