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4 changes: 4 additions & 0 deletions dvc/external_repo.py
Original file line number Diff line number Diff line change
Expand Up @@ -194,6 +194,7 @@ def _cached_clone(url, rev, for_write=False):

# Copy to a new dir to keep the clone clean
repo_path = tempfile.mkdtemp("dvc-erepo")
logger.debug("erepo: making a copy of {} clone", url)
copy_tree(clone_path, repo_path)

# Check out the specified revision
Expand All @@ -219,8 +220,10 @@ def _clone_default_branch(url, rev):
git = Git(clone_path)
# Do not pull for known shas, branches and tags might move
if not Git.is_sha(rev) or not git.has_rev(rev):
logger.debug("erepo: git pull {}", url)
git.pull()
else:
logger.debug("erepo: git clone {} to a temporary dir", url)
clone_path = tempfile.mkdtemp("dvc-clone")
git = Git.clone(url, clone_path)
CLONES[url] = clone_path
Expand All @@ -232,6 +235,7 @@ def _clone_default_branch(url, rev):


def _git_checkout(repo_path, rev):
logger.debug("erepo: git checkout {}@{}", repo_path, rev)
git = Git(repo_path)
try:
git.checkout(rev)
Expand Down