git-p4: better message for "git-p4 sync" when not cloned

diff --git a/contrib/fast-import/git-p4 b/contrib/fast-import/git-p4
index 6b847c4cb8edb51808b38fd80754535b0ad728b3..04e6c3dcba8c68c443fc61c1d009afac6eff76fa 100755 (executable)
--- a/contrib/fast-import/git-p4
+++ b/contrib/fast-import/git-p4
@@ -1676,6 +1676,8 @@ class P4Sync(Command):
 
                 changes.sort()
             else:
+                if not self.p4BranchesInGit:
+                    die("No remote p4 branches.  Perhaps you never did \"git p4 clone\" in here.");
                 if self.verbose:
                     print "Getting p4 changes for %s...%s" % (', '.join(self.depotPaths),
                                                               self.changeRange)