Skip fetching in bdep-sync configurations not known in project (GH issue #391)

1 files changed, 10 insertions, 1 deletions

diff --git a/bdep/sync.cxx b/bdep/sync.cxx
index b7e71fb..d92d86a 100644
--- a/bdep/sync.cxx
+++ b/bdep/sync.cxx
@@ -2777,7 +2777,16 @@ namespace bdep
       if (fetch)
       {
         for (const sync_config& c: ocfgs)
-          cmd_fetch (o, prj, c, o.fetch_full ());
+        {
+          // Make sure this configuration is known in this project and has
+          // some of its packages initialized. Failed, that, the project
+          // repository we are trying to fetch will not be know in this
+          // configuration and we will fail (see GitHub issue 391 for
+          // details).
+          //
+          if (c != nullptr && !c->packages.empty ())
+            cmd_fetch (o, prj, c, o.fetch_full ());
+        }
       }
 
       // Increase verbosity for bpkg-fetch command in cmd_sync() if we perform