Code

git-checkout: Test for relative path use.
[git.git] / send-pack.c
index d5b51628dfbcc44b22b5069df19eeac67dda1e57..b74fd454f2f09d23ffde7db015d4a7458dfcd348 100644 (file)
@@ -4,15 +4,17 @@
 #include "refs.h"
 #include "pkt-line.h"
 #include "run-command.h"
+#include "remote.h"
 
 static const char send_pack_usage[] =
-"git-send-pack [--all] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
+"git-send-pack [--all] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
 "  --all and explicit <ref> specification are mutually exclusive.";
 static const char *receivepack = "git-receive-pack";
 static int verbose;
 static int send_all;
 static int force_update;
 static int use_thin_pack;
+static int dry_run;
 
 /*
  * Make a pack stream and spit it out into file descriptor fd
@@ -176,7 +178,36 @@ static int receive_status(int in)
        return ret;
 }
 
-static int send_pack(int in, int out, int nr_refspec, char **refspec)
+static void update_tracking_ref(struct remote *remote, struct ref *ref)
+{
+       struct refspec rs;
+       int will_delete_ref;
+
+       rs.src = ref->name;
+       rs.dst = NULL;
+
+       if (!ref->peer_ref)
+               return;
+
+       will_delete_ref = is_null_sha1(ref->peer_ref->new_sha1);
+
+       if (!will_delete_ref &&
+                       !hashcmp(ref->old_sha1, ref->peer_ref->new_sha1))
+               return;
+
+       if (!remote_find_tracking(remote, &rs)) {
+               fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
+               if (is_null_sha1(ref->peer_ref->new_sha1)) {
+                       if (delete_ref(rs.dst, NULL))
+                               error("Failed to delete");
+               } else
+                       update_ref("update by push", rs.dst,
+                                       ref->new_sha1, NULL, 0, 0);
+               free(rs.dst);
+       }
+}
+
+static int send_pack(int in, int out, struct remote *remote, int nr_refspec, char **refspec)
 {
        struct ref *ref;
        int new_refs;
@@ -203,7 +234,8 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
                return -1;
 
        if (!remote_refs) {
-               fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
+               fprintf(stderr, "No refs in common and none specified; doing nothing.\n"
+                       "Perhaps you should specify a branch such as 'master'.\n");
                return 0;
        }
 
@@ -213,18 +245,19 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
        new_refs = 0;
        for (ref = remote_refs; ref; ref = ref->next) {
                char old_hex[60], *new_hex;
-               int delete_ref;
+               int will_delete_ref;
 
                if (!ref->peer_ref)
                        continue;
 
-               delete_ref = is_null_sha1(ref->peer_ref->new_sha1);
-               if (delete_ref && !allow_deleting_refs) {
+
+               will_delete_ref = is_null_sha1(ref->peer_ref->new_sha1);
+               if (will_delete_ref && !allow_deleting_refs) {
                        error("remote does not support deleting refs");
                        ret = -2;
                        continue;
                }
-               if (!delete_ref &&
+               if (!will_delete_ref &&
                    !hashcmp(ref->old_sha1, ref->peer_ref->new_sha1)) {
                        if (verbose)
                                fprintf(stderr, "'%s': up-to-date\n", ref->name);
@@ -251,7 +284,7 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
                 */
 
                if (!force_update &&
-                   !delete_ref &&
+                   !will_delete_ref &&
                    !is_null_sha1(ref->old_sha1) &&
                    !ref->force) {
                        if (!has_sha1_file(ref->old_sha1) ||
@@ -264,9 +297,9 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
                                 * commits at the remote end and likely
                                 * we were not up to date to begin with.
                                 */
-                               error("remote '%s' is not a strict "
-                                     "subset of local ref '%s'. "
-                                     "maybe you are not up-to-date and "
+                               error("remote '%s' is not an ancestor of\n"
+                                     " local  '%s'.\n"
+                                     " Maybe you are not up-to-date and "
                                      "need to pull first?",
                                      ref->name,
                                      ref->peer_ref->name);
@@ -275,22 +308,24 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
                        }
                }
                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
-               if (!delete_ref)
+               if (!will_delete_ref)
                        new_refs++;
                strcpy(old_hex, sha1_to_hex(ref->old_sha1));
                new_hex = sha1_to_hex(ref->new_sha1);
 
-               if (ask_for_status_report) {
-                       packet_write(out, "%s %s %s%c%s",
-                                    old_hex, new_hex, ref->name, 0,
-                                    "report-status");
-                       ask_for_status_report = 0;
-                       expect_status_report = 1;
+               if (!dry_run) {
+                       if (ask_for_status_report) {
+                               packet_write(out, "%s %s %s%c%s",
+                                       old_hex, new_hex, ref->name, 0,
+                                       "report-status");
+                               ask_for_status_report = 0;
+                               expect_status_report = 1;
+                       }
+                       else
+                               packet_write(out, "%s %s %s",
+                                       old_hex, new_hex, ref->name);
                }
-               else
-                       packet_write(out, "%s %s %s",
-                                    old_hex, new_hex, ref->name);
-               if (delete_ref)
+               if (will_delete_ref)
                        fprintf(stderr, "deleting '%s'\n", ref->name);
                else {
                        fprintf(stderr, "updating '%s'", ref->name);
@@ -303,7 +338,7 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
        }
 
        packet_flush(out);
-       if (new_refs)
+       if (new_refs && !dry_run)
                ret = pack_objects(out, remote_refs);
        close(out);
 
@@ -312,6 +347,11 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
                        ret = -4;
        }
 
+       if (!dry_run && remote && ret == 0) {
+               for (ref = remote_refs; ref; ref = ref->next)
+                       update_tracking_ref(remote, ref);
+       }
+
        if (!new_refs && ret == 0)
                fprintf(stderr, "Everything up-to-date\n");
        return ret;
@@ -330,6 +370,7 @@ static void verify_remote_names(int nr_heads, char **heads)
                case -2: /* ok but a single level -- that is fine for
                          * a match pattern.
                          */
+               case -3: /* ok but ends with a pattern-match character */
                        continue;
                }
                die("remote part of refspec is not a valid name in %s",
@@ -343,7 +384,9 @@ int main(int argc, char **argv)
        char *dest = NULL;
        char **heads = NULL;
        int fd[2], ret;
-       pid_t pid;
+       struct child_process *conn;
+       char *remote_name = NULL;
+       struct remote *remote = NULL;
 
        setup_git_directory();
        git_config(git_default_config);
@@ -361,10 +404,18 @@ int main(int argc, char **argv)
                                receivepack = arg + 7;
                                continue;
                        }
+                       if (!prefixcmp(arg, "--remote=")) {
+                               remote_name = arg + 9;
+                               continue;
+                       }
                        if (!strcmp(arg, "--all")) {
                                send_all = 1;
                                continue;
                        }
+                       if (!strcmp(arg, "--dry-run")) {
+                               dry_run = 1;
+                               continue;
+                       }
                        if (!strcmp(arg, "--force")) {
                                force_update = 1;
                                continue;
@@ -393,12 +444,18 @@ int main(int argc, char **argv)
                usage(send_pack_usage);
        verify_remote_names(nr_heads, heads);
 
-       pid = git_connect(fd, dest, receivepack);
-       if (pid < 0)
-               return 1;
-       ret = send_pack(fd[0], fd[1], nr_heads, heads);
+       if (remote_name) {
+               remote = remote_get(remote_name);
+               if (!remote_has_url(remote, dest)) {
+                       die("Destination %s is not a uri for %s",
+                           dest, remote_name);
+               }
+       }
+
+       conn = git_connect(fd, dest, receivepack, verbose ? CONNECT_VERBOSE : 0);
+       ret = send_pack(fd[0], fd[1], remote, nr_heads, heads);
        close(fd[0]);
        close(fd[1]);
-       ret |= finish_connect(pid);
+       ret |= finish_connect(conn);
        return !!ret;
 }