git-tar-tree: no more void pointer arithmetic

[git.git] / clone-pack.c

diff --git a/clone-pack.c b/clone-pack.c
index 9609219..a4370f5 100644 (file)
--- a/clone-pack.c
+++ b/clone-pack.c
@@ -1,12 +1,13 @@
 #include "cache.h"
 #include "refs.h"
 #include "pkt-line.h"
-#include <sys/wait.h>
 
 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];
@@ -112,139 +113,6 @@ static void write_refs(struct ref *ref)
        free(head_path);
 }
 
-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);
-       chmod(final, 0444);
-       snprintf(final, sizeof(final),
-                "%s/pack/pack-%s.idx", get_object_directory(), hash);
-       move_temp_to_file(idx, final);
-       chmod(final, 0444);
-       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/tmp-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;
@@ -257,10 +125,21 @@ static int clone_pack(int fd[2], int nr_match, char **match)
        }
        clone_handshake(fd, refs);
 
-       status = clone_without_unpack(fd);
-
-       if (!status)
-               write_refs(refs);
+       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;
+                       }
+       }
        return status;
 }
 
@@ -271,20 +150,22 @@ int main(int argc, char **argv)
        int fd[2];
        pid_t pid;
 
+       setup_git_directory();
+
        nr_heads = 0;
        heads = NULL;
        for (i = 1; i < argc; i++) {
                char *arg = argv[i];
 
                if (*arg == '-') {
-                       if (!strcmp("-q", arg))
+                       if (!strcmp("-q", arg)) {
+                               quiet = 1;
                                continue;
+                       }
                        if (!strncmp("--exec=", arg, 7)) {
                                exec = arg + 7;
                                continue;
                        }
-                       if (!strcmp("--keep", arg))
-                               continue;
                        usage(clone_pack_usage);
                }
                dest = arg;