Handle git submodules in version module

1 files changed, 4 insertions, 2 deletions

diff --git a/build2/version/snapshot.cxx b/build2/version/snapshot.cxx
index 00528c7..143c200 100644
--- a/build2/version/snapshot.cxx
+++ b/build2/version/snapshot.cxx
@@ -15,14 +15,16 @@ namespace build2
     snapshot
     extract_snapshot_git (const dir_path&);
 
-    static const dir_path git (".git");
+    static const path git (".git");
 
     snapshot
     extract_snapshot (const scope& rs)
     {
       const dir_path& src_root (rs.src_path ());
 
-      if (exists (src_root / git))
+      // .git can be either a directory or a file in case of a submodule.
+      //
+      if (build2::entry_exists (src_root / git, /* follow_symlinks */ true))
         return extract_snapshot_git (src_root);
 
       return snapshot ();