Enable use of REPO_CONFIG_DIR to customize .repoconfig location

For use cases with multiple instances of repo, eg some CI environments.

Bug: https://crbug.com/gerrit/15803
Change-Id: I65c1cfc8f6a98adfeb5efefc7ac6b45bf8e134de
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/356719
Tested-by: Gavin Mak <gavinmak@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>

1 files changed, 9 insertions, 4 deletions

diff --git a/git_config.py b/git_config.py
index 029beb4d..9ad979ad 100644
--- a/git_config.py
+++ b/git_config.py
@@ -69,8 +69,6 @@ def _key(name):
 class GitConfig(object):
   _ForUser = None
 
-  _USER_CONFIG = '~/.gitconfig'
-
   _ForSystem = None
   _SYSTEM_CONFIG = '/etc/gitconfig'
 
@@ -83,9 +81,13 @@ class GitConfig(object):
   @classmethod
   def ForUser(cls):
     if cls._ForUser is None:
-      cls._ForUser = cls(configfile=os.path.expanduser(cls._USER_CONFIG))
+      cls._ForUser = cls(configfile=cls._getUserConfig())
     return cls._ForUser
 
+  @staticmethod
+  def _getUserConfig():
+    return os.path.expanduser('~/.gitconfig')
+
   @classmethod
   def ForRepository(cls, gitdir, defaults=None):
     return cls(configfile=os.path.join(gitdir, 'config'),
@@ -415,7 +417,10 @@ class GitConfig(object):
 class RepoConfig(GitConfig):
   """User settings for repo itself."""
 
-  _USER_CONFIG = '~/.repoconfig/config'
+  @staticmethod
+  def _getUserConfig():
+    repo_config_dir = os.getenv('REPO_CONFIG_DIR', os.path.expanduser('~'))
+    return os.path.join(repo_config_dir, '.repoconfig/config')
 
 
 class RefSpec(object):