gcc-changelog: new error for quoted utf8 filenames

contrib/ChangeLog:

	* gcc-changelog/git_commit.py: Add new error for quoted
	filenames.
	* gcc-changelog/test_email.py: Test it.
	* gcc-changelog/test_patches.txt: Test it.

1 files changed, 8 insertions, 0 deletions

diff --git a/contrib/gcc-changelog/git_commit.py b/contrib/gcc-changelog/git_commit.py
index 01f4987..f9cb8cb 100755
--- a/contrib/gcc-changelog/git_commit.py
+++ b/contrib/gcc-changelog/git_commit.py
@@ -299,6 +299,14 @@ class GitCommit:
                                      'separately from normal commits'))
             return
 
+        # check for an encoded utf-8 filename
+        hint = 'git config --global core.quotepath false'
+        for modified, _ in self.info.modified_files:
+            if modified.startswith('"') or modified.endswith('"'):
+                self.errors.append(Error('Quoted UTF8 filename, please set: '
+                                         f'"{hint}"', modified))
+                return
+
         all_are_ignored = (len(project_files) + len(ignored_files)
                            == len(self.info.modified_files))
         self.parse_lines(all_are_ignored)