Separate GitHub concerns from repo_info function.

Ref #5

discovery.py

@@ -74,8 +74,12 @@ def none_as(replacement):
 
 @functools.lru_cache
 @jaraco.functools.apply(none_as({}))
-@suppress(subprocess.CalledProcessError)
 def repo_info() -> Mapping:
+    return github_repo_info()
+
+
+@suppress(subprocess.CalledProcessError)
+def github_repo_info() -> Mapping:
     data = json.loads(
         subprocess.check_output(
             ['gh', 'repo', 'view', '--json', 'description,url'],
@@ -86,19 +90,19 @@ def repo_info() -> Mapping:
     return {k: v for k, v in data.items() if v}
 
 
-def summary_from_github():
+def summary():
     """
-    Load the summary from GitHub.
+    Load the summary from hosted project.
 
-    >>> summary_from_github()
+    >>> summary()
     'A zero-config Python project build backend'
     """
     return repo_info().get('description')
 
 
 def source_url():
     """
-    Load the repo URL from GitHub.
+    Load the repo URL from hosted project.
 
     >>> source_url()
     'https://github.com/coherent-oss/coherent.build'

metadata.py

@@ -89,7 +89,7 @@ def _discover_fields():
         yield 'Name', discovery.best_name()
         yield 'Version', discovery.version_from_vcs()
         yield 'Author-Email', discovery.author_from_vcs()
-        yield 'Summary', discovery.summary_from_github()
+        yield 'Summary', discovery.summary()
         yield 'Requires-Python', discovery.python_requires_supported()
         deps = list(discovery.combined_deps())
         for dep in deps: