Merging upstream version 2.13.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 175 insertions, 9 deletions

diff --git a/tests/languages/docker_test.py b/tests/languages/docker_test.py
index 3bed4bf..01b5e27 100644
--- a/tests/languages/docker_test.py
+++ b/tests/languages/docker_test.py
@@ -1,14 +1,155 @@
+import builtins
+import json
+import ntpath
+import os.path
+import posixpath
 from unittest import mock
 
+import pytest
+
 from pre_commit.languages import docker
 
 
 def test_docker_fallback_user():
     def invalid_attribute():
         raise AttributeError
+
     with mock.patch.multiple(
-        'os', create=True,
-        getuid=invalid_attribute,
-        getgid=invalid_attribute,
+            'os', create=True,
+            getuid=invalid_attribute,
+            getgid=invalid_attribute,
     ):
         assert docker.get_docker_user() == ()
+
+
+def test_in_docker_no_file():
+    with mock.patch.object(builtins, 'open', side_effect=FileNotFoundError):
+        assert docker._is_in_docker() is False
+
+
+def _mock_open(data):
+    return mock.patch.object(
+        builtins,
+        'open',
+        new_callable=mock.mock_open,
+        read_data=data,
+    )
+
+
+def test_in_docker_docker_in_file():
+    docker_cgroup_example = b'''\
+12:hugetlb:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+11:blkio:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+10:freezer:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+9:cpu,cpuacct:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+8:pids:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+7:rdma:/
+6:net_cls,net_prio:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+5:cpuset:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+4:devices:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+3:memory:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+2:perf_event:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+1:name=systemd:/docker/c33988ec7651ebc867cb24755eaf637a6734088bc7eef59d5799293a9e5450f7
+0::/system.slice/containerd.service
+'''  # noqa: E501
+    with _mock_open(docker_cgroup_example):
+        assert docker._is_in_docker() is True
+
+
+def test_in_docker_docker_not_in_file():
+    non_docker_cgroup_example = b'''\
+12:perf_event:/
+11:hugetlb:/
+10:devices:/
+9:blkio:/
+8:rdma:/
+7:cpuset:/
+6:cpu,cpuacct:/
+5:freezer:/
+4:memory:/
+3:pids:/
+2:net_cls,net_prio:/
+1:name=systemd:/init.scope
+0::/init.scope
+'''
+    with _mock_open(non_docker_cgroup_example):
+        assert docker._is_in_docker() is False
+
+
+def test_get_docker_path_not_in_docker_returns_same():
+    with mock.patch.object(docker, '_is_in_docker', return_value=False):
+        assert docker._get_docker_path('abc') == 'abc'
+
+
+@pytest.fixture
+def in_docker():
+    with mock.patch.object(docker, '_is_in_docker', return_value=True):
+        yield
+
+
+def _linux_commonpath():
+    return mock.patch.object(os.path, 'commonpath', posixpath.commonpath)
+
+
+def _nt_commonpath():
+    return mock.patch.object(os.path, 'commonpath', ntpath.commonpath)
+
+
+def _docker_output(out):
+    ret = (0, out, b'')
+    return mock.patch.object(docker, 'cmd_output_b', return_value=ret)
+
+
+def test_get_docker_path_in_docker_no_binds_same_path(in_docker):
+    docker_out = json.dumps([{'Mounts': []}]).encode()
+
+    with _docker_output(docker_out):
+        assert docker._get_docker_path('abc') == 'abc'
+
+
+def test_get_docker_path_in_docker_binds_path_equal(in_docker):
+    binds_list = [{'Source': '/opt/my_code', 'Destination': '/project'}]
+    docker_out = json.dumps([{'Mounts': binds_list}]).encode()
+
+    with _linux_commonpath(), _docker_output(docker_out):
+        assert docker._get_docker_path('/project') == '/opt/my_code'
+
+
+def test_get_docker_path_in_docker_binds_path_complex(in_docker):
+    binds_list = [{'Source': '/opt/my_code', 'Destination': '/project'}]
+    docker_out = json.dumps([{'Mounts': binds_list}]).encode()
+
+    with _linux_commonpath(), _docker_output(docker_out):
+        path = '/project/test/something'
+        assert docker._get_docker_path(path) == '/opt/my_code/test/something'
+
+
+def test_get_docker_path_in_docker_no_substring(in_docker):
+    binds_list = [{'Source': '/opt/my_code', 'Destination': '/project'}]
+    docker_out = json.dumps([{'Mounts': binds_list}]).encode()
+
+    with _linux_commonpath(), _docker_output(docker_out):
+        path = '/projectSuffix/test/something'
+        assert docker._get_docker_path(path) == path
+
+
+def test_get_docker_path_in_docker_binds_path_many_binds(in_docker):
+    binds_list = [
+        {'Source': '/something_random', 'Destination': '/not-related'},
+        {'Source': '/opt/my_code', 'Destination': '/project'},
+        {'Source': '/something-random-2', 'Destination': '/not-related-2'},
+    ]
+    docker_out = json.dumps([{'Mounts': binds_list}]).encode()
+
+    with _linux_commonpath(), _docker_output(docker_out):
+        assert docker._get_docker_path('/project') == '/opt/my_code'
+
+
+def test_get_docker_path_in_docker_windows(in_docker):
+    binds_list = [{'Source': r'c:\users\user', 'Destination': r'c:\folder'}]
+    docker_out = json.dumps([{'Mounts': binds_list}]).encode()
+
+    with _nt_commonpath(), _docker_output(docker_out):
+        path = r'c:\folder\test\something'
+        expected = r'c:\users\user\test\something'
+        assert docker._get_docker_path(path) == expected
diff --git a/tests/languages/r_test.py b/tests/languages/r_test.py
index 5c046ef..66aa7b3 100644
--- a/tests/languages/r_test.py
+++ b/tests/languages/r_test.py
@@ -14,10 +14,12 @@ def _test_r_parsing(
     hook_id,
     expected_hook_expr={},
     expected_args={},
+    config={},
+    expect_path_prefix=True,
 ):
     repo_path = 'r_hooks_repo'
     path = make_repo(tempdir_factory, repo_path)
-    config = make_config_from_repo(path)
+    config = config or make_config_from_repo(path)
     hook = _get_hook_no_install(config, store, hook_id)
     ret = r._cmd_from_hook(hook)
     expected_cmd = 'Rscript'
@@ -25,7 +27,8 @@ def _test_r_parsing(
         '--no-save', '--no-restore', '--no-site-file', '--no-environ',
     )
     expected_path = os.path.join(
-        hook.prefix.prefix_dir, '.'.join([hook_id, 'R']),
+        hook.prefix.prefix_dir if expect_path_prefix else '',
+        f'{hook_id}.R',
     )
     expected = (
         expected_cmd,
@@ -102,3 +105,25 @@ def test_r_parsing_expr_non_Rscirpt(tempdir_factory, store):
 
     msg = execinfo.value.args
     assert msg == ('entry must start with `Rscript`.',)
+
+
+def test_r_parsing_file_local(tempdir_factory, store):
+    path = 'path/to/script.R'
+    hook_id = 'local-r'
+    config = {
+        'repo': 'local',
+        'hooks': [{
+            'id': hook_id,
+            'name': 'local-r',
+            'entry': f'Rscript {path}',
+            'language': 'r',
+        }],
+    }
+    _test_r_parsing(
+        tempdir_factory,
+        store,
+        hook_id=hook_id,
+        expected_hook_expr=(path,),
+        config=config,
+        expect_path_prefix=False,
+    )
diff --git a/tests/languages/ruby_test.py b/tests/languages/ruby_test.py
index 0c6cfed..7dff046 100644
--- a/tests/languages/ruby_test.py
+++ b/tests/languages/ruby_test.py
@@ -36,13 +36,13 @@ def test_uses_system_if_both_gem_and_ruby_are_available(find_exe_mck):
 def fake_gem_prefix(tmpdir):
     gemspec = '''\
 Gem::Specification.new do |s|
-    s.name = 'pre_commit_dummy_package'
+    s.name = 'pre_commit_placeholder_package'
     s.version = '0.0.0'
-    s.summary = 'dummy gem for pre-commit hooks'
+    s.summary = 'placeholder gem for pre-commit hooks'
     s.authors = ['Anthony Sottile']
 end
 '''
-    tmpdir.join('dummy_gem.gemspec').write(gemspec)
+    tmpdir.join('placeholder_gem.gemspec').write(gemspec)
     yield Prefix(tmpdir)
 
 
@@ -53,7 +53,7 @@ def test_install_ruby_system(fake_gem_prefix):
     # Should be able to activate and use rbenv install
     with ruby.in_env(fake_gem_prefix, 'system'):
         _, out, _ = cmd_output('gem', 'list')
-        assert 'pre_commit_dummy_package' in out
+        assert 'pre_commit_placeholder_package' in out
 
 
 @xfailif_windows  # pragma: win32 no cover