Use GIT_SSH environment to specify alternate ssh binary.

[git.git] / connect.c

diff --git a/connect.c b/connect.c
index 3953a1a..a6657b1 100644 (file)
--- a/connect.c
+++ b/connect.c
@@ -133,6 +133,20 @@ static void link_dst_tail(struct ref *ref, struct ref ***tail)
        **tail = NULL;
 }
 
+static struct ref *try_explicit_object_name(const char *name)
+{
+       unsigned char sha1[20];
+       struct ref *ref;
+       int len;
+       if (get_sha1(name, sha1))
+               return NULL;
+       len = strlen(name) + 1;
+       ref = xcalloc(1, sizeof(*ref) + len);
+       memcpy(ref->name, name, len);
+       memcpy(ref->new_sha1, sha1, 20);
+       return ref;
+}
+
 static int match_explicit_refs(struct ref *src, struct ref *dst,
                               struct ref ***dst_tail, struct refspec *rs)
 {
@@ -145,8 +159,15 @@ static int match_explicit_refs(struct ref *src, struct ref *dst,
                case 1:
                        break;
                case 0:
+                       /* The source could be in the get_sha1() format
+                        * not a reference name.
+                        */
+                       matched_src = try_explicit_object_name(rs[i].src);
+                       if (matched_src)
+                               break;
                        errs = 1;
-                       error("src refspec %s does not match any.");
+                       error("src refspec %s does not match any.",
+                             rs[i].src);
                        break;
                default:
                        errs = 1;
@@ -190,13 +211,6 @@ static int match_explicit_refs(struct ref *src, struct ref *dst,
                }
                if (errs)
                        continue;
-               if (matched_src->peer_ref) {
-                       errs = 1;
-                       error("src ref %s is sent to more than one dst.",
-                             matched_src->name);
-               }
-               else
-                       matched_src->peer_ref = matched_dst;
                if (matched_dst->peer_ref) {
                        errs = 1;
                        error("dst ref %s receives from more than one src.",
@@ -368,8 +382,15 @@ int git_connect(int fd[2], char *url, const char *prog)
                close(pipefd[0][1]);
                close(pipefd[1][0]);
                close(pipefd[1][1]);
-               if (protocol == PROTO_SSH)
-                       execlp("ssh", "ssh", host, command, NULL);
+               if (protocol == PROTO_SSH) {
+                       const char *ssh = getenv("GIT_SSH") ? : "ssh";
+                       const char *ssh_basename = strrchr(ssh, '/');
+                       if (!ssh_basename)
+                               ssh_basename = ssh;
+                       else
+                               ssh_basename++;
+                       execlp(ssh, ssh_basename, host, command, NULL);
+               }
                else
                        execlp("sh", "sh", "-c", command, NULL);
                die("exec failed");