| // Copyright 2018 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.devtools.build.lib.packages.util; |
| |
| import com.google.devtools.build.lib.testutil.TestConstants; |
| import java.io.IOException; |
| |
| /** Mock python support in Bazel. */ |
| public final class BazelMockPythonSupport extends MockPythonSupport { |
| |
| public static final BazelMockPythonSupport INSTANCE = new BazelMockPythonSupport(); |
| |
| private BazelMockPythonSupport() {} |
| |
| private static void addTool(MockToolsConfig config, String toolRelativePath) throws IOException { |
| config.create( |
| TestConstants.TOOLS_REPOSITORY_SCRATCH + toolRelativePath, |
| ResourceLoader.readFromResources(TestConstants.BAZEL_REPO_PATH + toolRelativePath)); |
| } |
| |
| @Override |
| public void setup(MockToolsConfig config) throws IOException { |
| writeMacroFile(config); |
| |
| addTool(config, "tools/python/python_version.bzl"); |
| addTool(config, "tools/python/srcs_version.bzl"); |
| addTool(config, "tools/python/toolchain.bzl"); |
| addTool(config, "tools/python/utils.bzl"); |
| addTool(config, "tools/python/private/defs.bzl"); |
| |
| config.create( |
| TestConstants.TOOLS_REPOSITORY_SCRATCH + "tools/python/BUILD", |
| "package(default_visibility=['//visibility:public'])", |
| getMacroLoadStatement(), |
| "load(':python_version.bzl', 'define_python_version_flag')", |
| "load('//tools/python:toolchain.bzl', 'py_runtime_pair')", |
| "define_python_version_flag(", |
| " name = 'python_version',", |
| ")", |
| "config_setting(", |
| " name = 'PY2',", |
| " flag_values = {':python_version': 'PY2'},", |
| ")", |
| "config_setting(", |
| " name = 'PY3',", |
| " flag_values = {':python_version': 'PY3'},", |
| ")", |
| "toolchain_type(name = 'toolchain_type')", |
| "constraint_setting(name = 'py2_interpreter_path')", |
| "constraint_setting(name = 'py3_interpreter_path')", |
| "py_runtime(", |
| " name = 'py2_interpreter',", |
| " interpreter_path = '/usr/bin/mockpython2',", |
| " python_version = 'PY2',", |
| ")", |
| "py_runtime(", |
| " name = 'py3_interpreter',", |
| " interpreter_path = '/usr/bin/mockpython3',", |
| " python_version = 'PY3',", |
| ")", |
| "py_runtime_pair(", |
| " name = 'default_py_runtime_pair',", |
| " py2_runtime = ':py2_interpreter',", |
| " py3_runtime = ':py3_interpreter',", |
| ")", |
| "toolchain(", |
| " # The Python workspace suffix looks to register a toolchain of this name.", |
| " name = 'autodetecting_toolchain',", |
| " toolchain = ':default_py_runtime_pair',", |
| " toolchain_type = ':toolchain_type',", |
| ")", |
| "exports_files(['precompile.py'])", |
| "sh_binary(name='2to3', srcs=['2to3.sh'])"); |
| } |
| |
| @Override |
| public String createPythonTopEntryPoint(MockToolsConfig config, String pyRuntimeLabel) |
| throws IOException { |
| // Under BazelPythonSemantics, we can simply set --python_top to be the py_runtime target. |
| return pyRuntimeLabel; |
| } |
| } |