#include "cache.h"
#include "refs.h"
#include "pkt-line.h"
-#include <sys/wait.h>
-static int quiet;
-static int keep_pack;
-static const char clone_pack_usage[] = "git-clone-pack [-q] [--exec=<git-upload-pack>] [<host>:]<directory> [<heads>]*";
+static const char clone_pack_usage[] =
+"git-clone-pack [--exec=<git-upload-pack>] [<host>:]<directory> [<heads>]*";
static const char *exec = "git-upload-pack";
+static int quiet = 0;
+
static void clone_handshake(int fd[2], struct ref *ref)
{
unsigned char sha1[20];
int fd;
char *hex;
+ if (!strncmp(ref->name, "refs/", 5) &&
+ check_ref_format(ref->name + 5)) {
+ error("refusing to create funny ref '%s' locally", ref->name);
+ return;
+ }
+
if (safe_create_leading_directories(path))
die("unable to create leading directory for %s", ref->name);
fd = open(path, O_CREAT | O_EXCL | O_WRONLY, 0666);
free(head_path);
}
-static int clone_by_unpack(int fd[2])
-{
- int status;
- pid_t pid;
-
- pid = fork();
- if (pid < 0)
- die("git-clone-pack: unable to fork off git-unpack-objects");
- if (!pid) {
- dup2(fd[0], 0);
- close(fd[0]);
- close(fd[1]);
- execlp("git-unpack-objects", "git-unpack-objects",
- quiet ? "-q" : NULL, NULL);
- die("git-unpack-objects exec failed");
- }
- close(fd[0]);
- close(fd[1]);
- while (waitpid(pid, &status, 0) < 0) {
- if (errno != EINTR)
- die("waiting for git-unpack-objects: %s", strerror(errno));
- }
- if (WIFEXITED(status)) {
- int code = WEXITSTATUS(status);
- if (code)
- die("git-unpack-objects died with error code %d", code);
- return 0;
- }
- if (WIFSIGNALED(status)) {
- int sig = WTERMSIG(status);
- die("git-unpack-objects died of signal %d", sig);
- }
- die("Sherlock Holmes! git-unpack-objects died of unnatural causes %d!", status);
-}
-
-static int finish_pack(const char *pack_tmp_name)
-{
- int pipe_fd[2];
- pid_t pid;
- char idx[PATH_MAX];
- char final[PATH_MAX];
- char hash[41];
- unsigned char sha1[20];
- char *cp;
- int err = 0;
-
- if (pipe(pipe_fd) < 0)
- die("git-clone-pack: unable to set up pipe");
-
- strcpy(idx, pack_tmp_name); /* ".git/objects/pack-XXXXXX" */
- cp = strrchr(idx, '/');
- memcpy(cp, "/pidx", 5);
-
- pid = fork();
- if (pid < 0)
- die("git-clone-pack: unable to fork off git-index-pack");
- if (!pid) {
- close(0);
- dup2(pipe_fd[1], 1);
- close(pipe_fd[0]);
- close(pipe_fd[1]);
- execlp("git-index-pack","git-index-pack",
- "-o", idx, pack_tmp_name, NULL);
- error("cannot exec git-index-pack <%s> <%s>",
- idx, pack_tmp_name);
- exit(1);
- }
- close(pipe_fd[1]);
- if (read(pipe_fd[0], hash, 40) != 40) {
- error("git-clone-pack: unable to read from git-index-pack");
- err = 1;
- }
- close(pipe_fd[0]);
-
- for (;;) {
- int status, code;
- int retval = waitpid(pid, &status, 0);
-
- if (retval < 0) {
- if (errno == EINTR)
- continue;
- error("waitpid failed (%s)", strerror(retval));
- goto error_die;
- }
- if (WIFSIGNALED(status)) {
- int sig = WTERMSIG(status);
- error("git-index-pack died of signal %d", sig);
- goto error_die;
- }
- if (!WIFEXITED(status)) {
- error("git-index-pack died of unnatural causes %d",
- status);
- goto error_die;
- }
- code = WEXITSTATUS(status);
- if (code) {
- error("git-index-pack died with error code %d", code);
- goto error_die;
- }
- if (err)
- goto error_die;
- break;
- }
- hash[40] = 0;
- if (get_sha1_hex(hash, sha1)) {
- error("git-index-pack reported nonsense '%s'", hash);
- goto error_die;
- }
- /* Now we have pack in pack_tmp_name[], and
- * idx in idx[]; rename them to their final names.
- */
- snprintf(final, sizeof(final),
- "%s/pack/pack-%s.pack", get_object_directory(), hash);
- move_temp_to_file(pack_tmp_name, final);
- snprintf(final, sizeof(final),
- "%s/pack/pack-%s.idx", get_object_directory(), hash);
- move_temp_to_file(idx, final);
- return 0;
-
- error_die:
- unlink(idx);
- unlink(pack_tmp_name);
- exit(1);
-}
-
-static int clone_without_unpack(int fd[2])
-{
- char tmpfile[PATH_MAX];
- int ofd, ifd;
-
- ifd = fd[0];
- snprintf(tmpfile, sizeof(tmpfile),
- "%s/pack-XXXXXX", get_object_directory());
- ofd = mkstemp(tmpfile);
- if (ofd < 0)
- return error("unable to create temporary file %s", tmpfile);
-
- while (1) {
- char buf[8192];
- ssize_t sz, wsz, pos;
- sz = read(ifd, buf, sizeof(buf));
- if (sz == 0)
- break;
- if (sz < 0) {
- error("error reading pack (%s)", strerror(errno));
- close(ofd);
- unlink(tmpfile);
- return -1;
- }
- pos = 0;
- while (pos < sz) {
- wsz = write(ofd, buf + pos, sz - pos);
- if (wsz < 0) {
- error("error writing pack (%s)",
- strerror(errno));
- close(ofd);
- unlink(tmpfile);
- return -1;
- }
- pos += wsz;
- }
- }
- close(ofd);
- return finish_pack(tmpfile);
-}
-
static int clone_pack(int fd[2], int nr_match, char **match)
{
struct ref *refs;
int status;
- get_remote_heads(fd[0], &refs, nr_match, match);
+ get_remote_heads(fd[0], &refs, nr_match, match, 1);
if (!refs) {
packet_flush(fd[1]);
die("no matching remote head");
}
clone_handshake(fd, refs);
- if (keep_pack)
- status = clone_without_unpack(fd);
- else
- status = clone_by_unpack(fd);
-
- if (!status)
- write_refs(refs);
- return status;
-}
-
-static int clone_options(const char *var, const char *value)
-{
- if (!strcmp("clone.keeppack", var)) {
- keep_pack = git_config_bool(var, value);
- return 0;
- }
- if (!strcmp("clone.quiet", var)) {
- quiet = git_config_bool(var, value);
- return 0;
+ status = receive_keep_pack(fd, "git-clone-pack", quiet);
+ if (!quiet)
+ fprintf(stderr, "\n");
+
+ if (!status) {
+ if (nr_match == 0)
+ write_refs(refs);
+ else
+ while (refs) {
+ printf("%s %s\n",
+ sha1_to_hex(refs->old_sha1),
+ refs->name);
+ refs = refs->next;
+ }
}
- /*
- * Put other local option parsing for this program
- * here ...
- */
-
- /* Fall back on the default ones */
- return git_default_config(var, value);
+ return status;
}
int main(int argc, char **argv)
int fd[2];
pid_t pid;
- git_config(clone_options);
+ setup_git_directory();
+
nr_heads = 0;
heads = NULL;
for (i = 1; i < argc; i++) {
exec = arg + 7;
continue;
}
- if (!strcmp("--keep", arg)) {
- keep_pack = 1;
- continue;
- }
usage(clone_pack_usage);
}
dest = arg;