Try Git Safe Directory to Resolve fatal: not in a git directory

src/config.py

@@ -27,13 +27,15 @@ class ActionEnvironment(NamedTuple):
     repository: str
     base_branch: str
     event_name: str
+    github_workspace: str
 
     @classmethod
     def from_env(cls, env: Mapping[str, str]) -> "ActionEnvironment":
         return cls(
             repository=env["GITHUB_REPOSITORY"],
             base_branch=env["GITHUB_REF"],
             event_name=env["GITHUB_EVENT_NAME"],
+            github_workspace=env["GITHUB_WORKSPACE"],
         )
 
 

src/main.py

@@ -22,6 +22,7 @@
 )
 from .run_git import (
     configure_git_author,
+    configure_safe_directory,
     create_new_git_branch,
     git_commit_changes,
     git_has_changes,
@@ -442,6 +443,9 @@ def _get_all_actions(self, data: Any) -> Generator[str, None, None]:
         gha_utils.echo("Using Configuration:")
         gha_utils.echo(pprint.pformat(user_configuration._asdict()))
 
+    # Configure Git Safe Directory
+    configure_safe_directory(action_environment.github_workspace)
+
     # Configure Git Author
     configure_git_author(
         user_configuration.git_committer_username,

src/run_git.py

@@ -15,6 +15,16 @@ def configure_git_author(username: str, email: str) -> None:
         run_subprocess_command(["git", "config", "user.email", email])
 
 
+def configure_safe_directory(directory: str) -> None:
+    """
+    Configure git safe.directory.
+    """
+    with gha_utils.group("Configure Git Safe Directory"):
+        run_subprocess_command(
+            ["git", "config", "--global", "--add", "safe.directory", directory]
+        )
+
+
 def create_new_git_branch(base_branch_name: str, new_branch_name: str) -> None:
     """
     Create a new git branch from base branch.