diff --git a/npm/private/utils.bzl b/npm/private/utils.bzl
index 211df428a..87c06c2ce 100644
--- a/npm/private/utils.bzl
+++ b/npm/private/utils.bzl
@@ -134,6 +134,41 @@ def _convert_v5_importers(importers):
         )
     return result
 
+def _convert_v5_v6_file_package(package_path, package_snapshot):
+    if "name" not in package_snapshot:
+        msg = "expected package {} to have a name field".format(package_path)
+        fail(msg)
+
+    name = package_snapshot["name"]
+    version = package_path
+    if _is_vendored_tarfile(package_snapshot):
+        package = package_snapshot["name"]
+        if "version" in package_snapshot:
+            version = package_snapshot["version"]
+        package_key = "{}@{}".format(package, version)
+        friendly_version = version
+    else:
+        package = package_path
+        friendly_version = package_snapshot["version"] if "version" in package_snapshot else version
+        package_key = package
+
+    return package_key, package, name, version, friendly_version
+
+def _convert_v5_v6_default_package(package_path, package_snapshot):
+    package = package_path
+    if "name" not in package_snapshot:
+        msg = "expected package {} to have a name field".format(package_path)
+        fail(msg)
+    if "version" not in package_snapshot:
+        msg = "expected package {} to have a version field".format(package_path)
+        fail(msg)
+    name = package_snapshot["name"]
+    version = package_path
+    friendly_version = package_snapshot["version"]
+    package_key = package
+
+    return package_key, package, name, version, friendly_version
+
 def _convert_v5_packages(packages):
     result = {}
     for package_path, package_snapshot in packages.items():
@@ -148,34 +183,10 @@ def _convert_v5_packages(packages):
             friendly_version = version
             package_key = "{}@{}".format(name, version)
         elif package_path.startswith("file:"):
-            if "name" not in package_snapshot:
-                msg = "expected package {} to have a name field".format(package_path)
-                fail(msg)
-
-            name = package_snapshot["name"]
-            version = package_path
-            if _is_vendored_tarfile(package_snapshot):
-                package = package_snapshot["name"]
-                if "version" in package_snapshot:
-                    version = package_snapshot["version"]
-                package_key = "{}@{}".format(package, version)
-                friendly_version = version
-            else:
-                package = package_path
-                friendly_version = package_snapshot["version"] if "version" in package_snapshot else version
-                package_key = package
+            # direct reference to file
+            package_key, package, name, version, friendly_version = _convert_v5_v6_file_package(package_path, package_snapshot)
         else:
-            package = package_path
-            if "name" not in package_snapshot:
-                msg = "expected package {} to have a name field".format(package_path)
-                fail(msg)
-            if "version" not in package_snapshot:
-                msg = "expected package {} to have a version field".format(package_path)
-                fail(msg)
-            name = package_snapshot["name"]
-            version = package_path
-            friendly_version = package_snapshot["version"]
-            package_key = package
+            package_key, package, name, version, friendly_version = _convert_v5_v6_default_package(package_path, package_snapshot)
 
         result[package_key] = _new_package_info(
             id = package_snapshot["id"] if "id" in package_snapshot else None,
@@ -288,34 +299,10 @@ def _convert_v6_packages(packages):
             friendly_version = version
             package_key = "{}@{}".format(name, version)
         elif package_path.startswith("file:"):
-            if "name" not in package_snapshot:
-                msg = "expected package {} to have a name field".format(package_path)
-                fail(msg)
-
-            name = package_snapshot["name"]
-            version = package_path
-            if _is_vendored_tarfile(package_snapshot):
-                package = package_snapshot["name"]
-                if "version" in package_snapshot:
-                    version = package_snapshot["version"]
-                package_key = "{}@{}".format(package, version)
-                friendly_version = version
-            else:
-                package = package_path
-                friendly_version = package_snapshot["version"] if "version" in package_snapshot else version
-                package_key = package
+            # direct reference to file
+            package_key, package, name, version, friendly_version = _convert_v5_v6_file_package(package_path, package_snapshot)
         else:
-            package = package_path
-            if "name" not in package_snapshot:
-                msg = "expected package {} to have a name field".format(package_path)
-                fail(msg)
-            if "version" not in package_snapshot:
-                msg = "expected package {} to have a version field".format(package_path)
-                fail(msg)
-            name = package_snapshot["name"]
-            version = package_path
-            friendly_version = package_snapshot["version"]
-            package_key = package
+            package_key, package, name, version, friendly_version = _convert_v5_v6_default_package(package_path, package_snapshot)
 
         result[package_key] = _new_package_info(
             id = package_snapshot["id"] if "id" in package_snapshot else None,