From 21971f7fbf702a0e9e35a3716b999ade7d02dd34 Mon Sep 17 00:00:00 2001
From: Scott Worley <scottworley@scottworley.com>
Date: Fri, 9 Jul 2021 15:56:29 -0700
Subject: [PATCH 1/1] Suppress git's init.defaultBranch hints

---
 Changelog         |  2 ++
 git_cache.py      | 10 ++++++++--
 test_git_cache.py |  3 ++-
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/Changelog b/Changelog
index e21bfc1..ca29a36 100644
--- a/Changelog
+++ b/Changelog
@@ -1,4 +1,6 @@
 ## [Unreleased]
+### Changed
+- Suppress git's init.defaultBranch hints
 
 
 ## [1.4.0] - 2021-06-21
diff --git a/git_cache.py b/git_cache.py
index d54041b..1ed2601 100644
--- a/git_cache.py
+++ b/git_cache.py
@@ -176,8 +176,14 @@ def fetch(repo: Repo, ref: Ref, force: bool = False) -> Tuple[Path, Rev]:
     cachedir = git_cachedir(repo)
     if not os.path.exists(cachedir):
         logging.debug("Initializing git repo")
-        subprocess.run(['git', 'init', '--bare', cachedir],
-                       check=True, stdout=sys.stderr)
+        subprocess.run(['git',
+                        '-c',
+                        'init.defaultBranch=git-cache--no-default-branch',
+                        'init',
+                        '--bare',
+                        cachedir],
+                       check=True,
+                       stdout=sys.stderr)
 
     logging.debug('Fetching ref "%s" from %s', ref, repo)
     _git_fetch(cachedir, repo, ref, force=force)
diff --git a/test_git_cache.py b/test_git_cache.py
index 2990f56..7cd232d 100644
--- a/test_git_cache.py
+++ b/test_git_cache.py
@@ -56,7 +56,8 @@ class TestGitCache(unittest.TestCase):
 
         self.tempdir = tempfile.TemporaryDirectory(prefix='git_cache_test-')
         self.upstream = os.path.join(self.tempdir.name, 'upstream')
-        subprocess.run(['git', 'init', self.upstream], check=True)
+        subprocess.run(['git', '-c', 'init.defaultBranch=master',
+                       'init', self.upstream], check=True)
         _commit_file(self.upstream, 'file', 'Contents', 'First commit')
 
     def tearDown(self) -> None:
-- 
2.44.1