gitbug: Correctly expand user home directory

Previously, providing '~' as part of the path to a gitbug remote would
not correctly expand to the user's home directory and error out with
directory not found.

This commit fixes the behavior to correctly expand the path instead,
aligning behavior with that of the taskrc configuration option and other
services' path expansion.

bugwarrior/services/gitbug.py

@@ -1,6 +1,5 @@
 import logging
 import os
-import pathlib
 import signal
 import subprocess
 import sys
@@ -17,7 +16,7 @@
 class GitBugConfig(config.ServiceConfig):
     service: typing_extensions.Literal['gitbug']
 
-    path: pathlib.Path
+    path: config.ExpandedPath
 
     import_labels_as_tags: bool = False
     label_template: str = '{{label}}'

tests/test_gitbug.py

@@ -4,9 +4,9 @@
 import dateutil
 import pydantic
 
-from bugwarrior.services.gitbug import GitBugClient, GitBugService
+from bugwarrior.services.gitbug import GitBugClient, GitBugConfig, GitBugService
 
-from .base import AbstractServiceTest, ServiceTest
+from .base import AbstractServiceTest, ConfigTest, ServiceTest
 
 
 # NOTE: replace with stdlib dataclasses.dataclass once python-3.6 is dropped
@@ -83,3 +83,13 @@ def test_issues(self):
         }
 
         self.assertEqual(issue.get_taskwarrior_record(), expected)
+
+
+class TestGitBugConfig(ConfigTest):
+    def setUp(self):
+        super().setUp()
+        self.config = GitBugConfig(service="gitbug", path="~/custom-gitbug-repo")
+
+    def test_home_path_expansion(self):
+        expected = self.tempdir + "/custom-gitbug-repo"
+        self.assertEqual(self.config.path, expected)