refactor: use shopen instead of manual launch_editor (ported from insanum#767)

Replace the hand-rolled launch_editor utility (which tried editor/EDITOR/
xdg-open/open in sequence) with the shopen library. Removes subprocess
and os imports from utils.py. Conflict-resolved against main.

Co-Authored-By: David Barnett <noreply@github.com>
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: 3 people

gcalcli/cli.py

@@ -40,6 +40,8 @@
 from argparse import ArgumentTypeError
 from collections import namedtuple
 
+import shopen
+
 from . import config, env, utils
 from .argparsers import get_argument_parser, handle_unparsed
 from .exceptions import GcalcliError
@@ -347,7 +349,7 @@ def main():
                     config_filepath.parent.mkdir(parents=True, exist_ok=True)
                     with open(config_filepath, 'w') as f:
                         f.write(EMPTY_CONFIG_TOML)
-                utils.launch_editor(config_filepath)
+                shopen.open(config_filepath, 'edit')
 
         elif parsed_args.command == 'util':
             if parsed_args.subcommand == 'config-schema':

gcalcli/utils.py

@@ -2,11 +2,9 @@
 from collections import OrderedDict
 import json
 import locale
-import os
 import pathlib
 import pickle
 import re
-import subprocess
 import time
 from datetime import datetime, timedelta
 from typing import Any, Tuple
@@ -207,26 +205,6 @@ def localize_datetime(dt):
         return dt.astimezone(tzlocal())
 
 
-def launch_editor(path: str | os.PathLike):
-    if hasattr(os, 'startfile'):
-        os.startfile(path, 'edit')
-        return
-    for editor in (
-        'editor',
-        os.environ.get('EDITOR', None),
-        'xdg-open',
-        'open',
-    ):
-        if not editor:
-            continue
-        try:
-            subprocess.call((editor, path))
-            return
-        except OSError:
-            pass
-    raise OSError(f'No editor/launcher detected on your system to edit {path}')
-
-
 def shorten_path(path: pathlib.Path) -> pathlib.Path:
     """Try to shorten path using special characters like ~.
 

pyproject.toml

@@ -35,6 +35,7 @@ dependencies = [
   "platformdirs",
   "pydantic",
   "python-dateutil",
+  "shopen >= 0.2.2",
   "tomli; python_version < '3.11'",
   "truststore",
 ]