From 5afeb29c9454a0aa9f696e21f943fe4269eff29b Mon Sep 17 00:00:00 2001
From: Paul Gauthier <paul@geomagical.com>
Date: Mon, 8 May 2023 20:57:19 -0700
Subject: [PATCH] Add set_repo() function to set self.repo to the single
 repository that all the files belong to.

---
 coder.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/coder.py b/coder.py
index 14606b3ba..aef053f21 100755
--- a/coder.py
+++ b/coder.py
@@ -68,8 +68,21 @@ class Coder:
 
             self.fnames[str(fname)] = fname.stat().st_mtime
 
+        self.set_repo()
         self.check_for_local_edits(True)
 
+    def set_repo(self):
+        repo_paths = set(
+            git.Repo(fname, search_parent_directories=True).git_dir
+            for fname in self.fnames
+        )
+
+        if len(repo_paths) > 1:
+            repo_paths = " ".join(repo_paths)
+            raise ValueError(f"Files must all be in one git repo, not: {repo_paths}")
+
+        self.repo = git.Repo(repo_paths.pop())
+
         self.pretty = pretty
 
     def quoted_file(self, fname):