Support building flakes from a shallow Git repo

Fixes #3756.
2020-07-01 14:57:59 +02:00
parent 26cf0c674f
commit 7d554f295c
2 changed files with 5 additions and 0 deletions
@@ -142,6 +142,9 @@ std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
                    parsedURL.query.insert_or_assign("dir", subdir);
                }

+                if (pathExists(flakeRoot + "/.git/shallow"))
+                    parsedURL.query.insert_or_assign("shallow", "1");
+
                return std::make_pair(
                    FlakeRef(Input::fromURL(parsedURL), get(parsedURL.query, "dir").value_or("")),
                    fragment);