Use ghtoken to fetch GitHub token from more sources

README.rst

@@ -549,9 +549,11 @@ alternative to setting them directly in the environment.
 GitHub
 ~~~~~~
 
-In order to retrieve assets from GitHub, a GitHub OAuth token must be specified
-either via the ``GITHUB_TOKEN`` environment variable or as the value of the
-``hub.oauthtoken`` Git config option.
+In order to retrieve assets from GitHub, a GitHub access token with appropriate
+permissions must be provided.  Specify the token via the ``GH_TOKEN`` or
+``GITHUB_TOKEN`` environment variable, by storing a token with the ``gh`` or
+``hub`` command, or by setting the ``hub.oauthtoken`` Git config option in your
+``~/.gitconfig`` file.
 
 Travis
 ~~~~~~

setup.cfg

@@ -45,6 +45,7 @@ install_requires =
     click >= 7.0
     click-loglevel ~= 0.2
     in_place ~= 0.4
+    ghtoken ~= 0.1
     pydantic ~= 1.7
     python-dateutil ~= 2.7
     python-dotenv >= 0.11, < 2.0

src/tinuous/util.py

@@ -5,14 +5,14 @@
 from datetime import datetime, timezone
 import email.utils
 import logging
-import os
 from pathlib import Path
 import re
 from string import Formatter
-import subprocess
 from time import time
 from typing import Any, Optional
 
+from ghtoken import GHTokenNotFound, get_ghtoken
+
 log = logging.getLogger("tinuous")
 
 
@@ -128,20 +128,14 @@ def parse_slice(s: str) -> slice:
 
 
 def get_github_token() -> str:
-    token = os.environ.get("GITHUB_TOKEN")
-    if not token:
-        r = subprocess.run(
-            ["git", "config", "hub.oauthtoken"],
-            stdout=subprocess.PIPE,
-            universal_newlines=True,
+    try:
+        # main() already loads the user's dotenv file, so don't load it again
+        return get_ghtoken(dotenv=False)
+    except GHTokenNotFound:
+        raise RuntimeError(
+            "GitHub token not found.  Set via GH_TOKEN, GITHUB_TOKEN, gh, hub,"
+            " or hub.oauthtoken."
         )
-        if r.returncode != 0 or not r.stdout.strip():
-            raise RuntimeError(
-                "GitHub OAuth token not set.  Set via GITHUB_TOKEN"
-                " environment variable or hub.oauthtoken Git config option."
-            )
-        token = r.stdout.strip()
-    return token
 
 
 def sanitize_pathname(s: str) -> str: