get: recoup cache optimal location

dvc/external_repo.py

@@ -33,7 +33,7 @@ def external_repo(url=None, rev=None, rev_lock=None, cache_dir=None):
     repo.close()
 
 
-def cached_clone(url, rev=None, clone_path=None, **_ignored_kwargs):
+def cached_clone(url, rev=None, **_ignored_kwargs):
     """Clone an external git repo to a temporary directory.
 
     Returns the path to a local temporary directory with the specified
@@ -44,7 +44,7 @@ def cached_clone(url, rev=None, clone_path=None, **_ignored_kwargs):
 
     """
 
-    new_path = clone_path or tempfile.mkdtemp("dvc-erepo")
+    new_path = tempfile.mkdtemp("dvc-erepo")
 
     # Copy and adjust existing clean clone
     if (url, None, None) in REPO_CACHE:

dvc/repo/get.py

@@ -3,6 +3,8 @@ import os
 
 import shortuuid
 
+from dvc.cache import CacheConfig
+from dvc.config import Config
 from dvc.exceptions import (
     DvcException,
     NotDvcRepoError,
@@ -49,9 +51,11 @@ def get(url, path, out=None, rev=None):
     dpath = os.path.dirname(os.path.abspath(out))
     tmp_dir = os.path.join(dpath, "." + str(shortuuid.uuid()))
     try:
-        cached_clone(url, rev=rev, clone_path=tmp_dir)
+        clone_dir = cached_clone(url, rev=rev)
         try:
-            repo = Repo(tmp_dir)
+            repo = Repo(clone_dir)
+            cache_config = CacheConfig(repo.config)
+            cache_config.set_dir(tmp_dir, level=Config.LEVEL_LOCAL)
 
             # Try any links possible to avoid data duplication.
             #
@@ -78,12 +82,13 @@ def get(url, path, out=None, rev=None):
         if os.path.isabs(path):
             raise FileNotFoundError
 
-        fs_copy(os.path.join(tmp_dir, path), out)
+        fs_copy(os.path.join(clone_dir, path), out)
 
     except (OutputNotFoundError, FileNotFoundError):
         raise PathMissingError(path, url)
     finally:
         remove(tmp_dir)
+        remove(clone_dir)
 
 
 def _get_cached(repo, output, out):