Push remote env var details

pre_commit/commands/run.py

@@ -312,6 +312,10 @@ def run(
         environ['PRE_COMMIT_ORIGIN'] = args.origin
         environ['PRE_COMMIT_SOURCE'] = args.source
 
+    if args.push_remote_name and args.push_remote_url:
+        environ['PRE_COMMIT_REMOTE_NAME'] = args.push_remote_name
+        environ['PRE_COMMIT_REMOTE_URL'] = args.push_remote_url
+
     with contextlib.ExitStack() as exit_stack:
         if stash:
             exit_stack.enter_context(staged_files_only(store.directory))

pre_commit/main.py

@@ -101,6 +101,12 @@ def _add_run_options(parser: argparse.ArgumentParser) -> None:
         '--commit-msg-filename',
         help='Filename to check when running during `commit-msg`',
     )
+    parser.add_argument(
+        '--push-remote-name', help='Remote name used by `git push`.',
+    )
+    parser.add_argument(
+        '--push-remote-url', help='Remote url used by `git push`.',
+    )
     parser.add_argument(
         '--hook-stage', choices=C.STAGES, default='commit',
         help='The stage during which the hook is fired.  One of %(choices)s',

pre_commit/resources/hook-tmpl

@@ -120,7 +120,8 @@ def _rev_exists(rev: str) -> bool:
 
 
 def _pre_push(stdin: bytes) -> Tuple[str, ...]:
-    remote = sys.argv[1]
+    remote_name = sys.argv[1]
+    remote_url = sys.argv[2]
 
     opts: Tuple[str, ...] = ()
     for line in stdin.decode().splitlines():
@@ -133,7 +134,7 @@ def _pre_push(stdin: bytes) -> Tuple[str, ...]:
             # ancestors not found in remote
             ancestors = subprocess.check_output((
                 'git', 'rev-list', local_sha, '--topo-order', '--reverse',
-                '--not', f'--remotes={remote}',
+                '--not', f'--remotes={remote_name}',
             )).decode().strip()
             if not ancestors:
                 continue
@@ -150,7 +151,10 @@ def _pre_push(stdin: bytes) -> Tuple[str, ...]:
                     opts = ('--origin', local_sha, '--source', source)
 
     if opts:
-        return opts
+        remote_opts = (
+            '--push-remote-name', remote_name, '--push-remote-url', remote_url,
+        )
+        return opts + remote_opts
     else:
         # An attempt to push an empty changeset
         raise EarlyExit()

testing/util.py

@@ -67,6 +67,8 @@ def run_opts(
         hook=None,
         origin='',
         source='',
+        push_remote_name='',
+        push_remote_url='',
         hook_stage='commit',
         show_diff_on_failure=False,
         commit_msg_filename='',
@@ -81,6 +83,8 @@ def run_opts(
         hook=hook,
         origin=origin,
         source=source,
+        push_remote_name=push_remote_name,
+        push_remote_url=push_remote_url,
         hook_stage=hook_stage,
         show_diff_on_failure=show_diff_on_failure,
         commit_msg_filename=commit_msg_filename,

tests/commands/run_test.py

@@ -687,6 +687,35 @@ def test_stages(cap_out, store, repo_with_passing_hook):
     assert _run_for_stage('commit-msg').startswith(b'hook 5...')
 
 
+def test_push_remote_environment(cap_out, store, repo_with_passing_hook):
+    config = {
+        'repo': 'local',
+        'hooks': [
+            {
+                'id': 'print-push-remote',
+                'name': 'Print push remote name',
+                'entry': 'entry: bash -c \'echo "$PRE_COMMIT_REMOTE_NAME"\'',
+                'language': 'system',
+                'verbose': bool(1),
+            },
+        ],
+    }
+    add_config_to_repo(repo_with_passing_hook, config)
+
+    _test_run(
+        cap_out,
+        store,
+        repo_with_passing_hook,
+        opts={
+            'push_remote_name': 'origin',
+            'push_remote_url': 'https://github.com/pre-commit/pre-commit',
+        },
+        expected_outputs=[b'Print push remote name', b'Passed'],
+        expected_ret=0,
+        stage=['push'],
+    )
+
+
 def test_commit_msg_hook(cap_out, store, commit_msg_repo):
     filename = '.git/COMMIT_EDITMSG'
     with open(filename, 'w') as f: