Adding upstream version 2.2.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

testing/util.py

@@ -0,0 +1,113 @@
+import contextlib
+import os.path
+import subprocess
+
+import pytest
+
+from pre_commit import parse_shebang
+from pre_commit.languages.docker import docker_is_running
+from pre_commit.util import cmd_output
+from testing.auto_namedtuple import auto_namedtuple
+
+
+TESTING_DIR = os.path.abspath(os.path.dirname(__file__))
+
+
+def get_resource_path(path):
+    return os.path.join(TESTING_DIR, 'resources', path)
+
+
+def cmd_output_mocked_pre_commit_home(
+        *args, tempdir_factory, pre_commit_home=None, env=None, **kwargs,
+):
+    if pre_commit_home is None:
+        pre_commit_home = tempdir_factory.get()
+    env = env if env is not None else os.environ
+    kwargs.setdefault('stderr', subprocess.STDOUT)
+    # Don't want to write to the home directory
+    env = dict(env, PRE_COMMIT_HOME=pre_commit_home)
+    ret, out, _ = cmd_output(*args, env=env, **kwargs)
+    return ret, out.replace('\r\n', '\n'), None
+
+
+skipif_cant_run_docker = pytest.mark.skipif(
+    os.name == 'nt' or not docker_is_running(),
+    reason="Docker isn't running or can't be accessed",
+)
+skipif_cant_run_swift = pytest.mark.skipif(
+    parse_shebang.find_executable('swift') is None,
+    reason="swift isn't installed or can't be found",
+)
+xfailif_windows_no_ruby = pytest.mark.xfail(
+    os.name == 'nt',
+    reason='Ruby support not yet implemented on windows.',
+)
+xfailif_windows = pytest.mark.xfail(os.name == 'nt', reason='windows')
+
+
+def supports_venv():  # pragma: no cover (platform specific)
+    try:
+        __import__('ensurepip')
+        __import__('venv')
+        return True
+    except ImportError:
+        return False
+
+
+xfailif_no_venv = pytest.mark.xfail(
+    not supports_venv(), reason='Does not support venv module',
+)
+
+
+def run_opts(
+        all_files=False,
+        files=(),
+        color=False,
+        verbose=False,
+        hook=None,
+        from_ref='',
+        to_ref='',
+        remote_name='',
+        remote_url='',
+        hook_stage='commit',
+        show_diff_on_failure=False,
+        commit_msg_filename='',
+        checkout_type='',
+):
+    # These are mutually exclusive
+    assert not (all_files and files)
+    return auto_namedtuple(
+        all_files=all_files,
+        files=files,
+        color=color,
+        verbose=verbose,
+        hook=hook,
+        from_ref=from_ref,
+        to_ref=to_ref,
+        remote_name=remote_name,
+        remote_url=remote_url,
+        hook_stage=hook_stage,
+        show_diff_on_failure=show_diff_on_failure,
+        commit_msg_filename=commit_msg_filename,
+        checkout_type=checkout_type,
+    )
+
+
+@contextlib.contextmanager
+def cwd(path):
+    original_cwd = os.getcwd()
+    os.chdir(path)
+    try:
+        yield
+    finally:
+        os.chdir(original_cwd)
+
+
+def git_commit(*args, fn=cmd_output, msg='commit!', **kwargs):
+    kwargs.setdefault('stderr', subprocess.STDOUT)
+
+    cmd = ('git', 'commit', '--allow-empty', '--no-gpg-sign', '-a') + args
+    if msg is not None:  # allow skipping `-m` with `msg=None`
+        cmd += ('-m', msg)
+    ret, out, _ = fn(*cmd, **kwargs)
+    return ret, out.replace('\r\n', '\n')