| // Copyright 2014 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.rules.repository; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.analysis.BlazeDirectories; |
| import com.google.devtools.build.lib.analysis.RuleDefinition; |
| import com.google.devtools.build.lib.bazel.ResolvedEvent; |
| import com.google.devtools.build.lib.packages.Rule; |
| import com.google.devtools.build.lib.vfs.Path; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import com.google.devtools.build.lib.vfs.XattrProvider; |
| import com.google.devtools.build.skyframe.SkyFunction.Environment; |
| import com.google.devtools.build.skyframe.SkyKey; |
| import java.util.Map; |
| import net.starlark.java.eval.Starlark; |
| |
| /** |
| * Access a repository on the local filesystem. |
| */ |
| public class LocalRepositoryFunction extends RepositoryFunction { |
| |
| @Override |
| public boolean isLocal(Rule rule) { |
| return true; |
| } |
| |
| @Override |
| public RepositoryDirectoryValue.Builder fetch( |
| Rule rule, |
| Path outputDirectory, |
| BlazeDirectories directories, |
| Environment env, |
| Map<String, String> markerData, |
| SkyKey key) |
| throws InterruptedException, RepositoryFunctionException { |
| String userDefinedPath = RepositoryFunction.getPathAttr(rule); |
| Path targetPath = directories.getWorkspace().getRelative(userDefinedPath); |
| RepositoryDirectoryValue.Builder result = |
| RepositoryDelegatorFunction.symlinkRepoRoot( |
| directories, outputDirectory, targetPath, userDefinedPath, env); |
| if (result != null) { |
| env.getListener().post(resolve(rule, directories)); |
| } |
| return result; |
| } |
| |
| @Override |
| public Class<? extends RuleDefinition> getRuleDefinition() { |
| return LocalRepositoryRule.class; |
| } |
| |
| private static ResolvedEvent resolve(Rule rule, BlazeDirectories directories) { |
| String name = rule.getName(); |
| Object pathObj = rule.getAttr("path"); |
| String path; |
| if (pathObj instanceof String) { |
| path = (String) pathObj; |
| } else { |
| path = ""; |
| } |
| // Find a descrption of the path; there is a case, where we do not(!) want to hard-code |
| // the argument we obtained: if the path is under the embedded binaries root. |
| String pathArg; |
| PathFragment pathFragment = PathFragment.create(path); |
| PathFragment embeddedDir = directories.getEmbeddedBinariesRoot().asFragment(); |
| if (pathFragment.isAbsolute() && pathFragment.startsWith(embeddedDir)) { |
| pathArg = |
| "__embedded_dir__ + \"/\" + " |
| + Starlark.repr(pathFragment.relativeTo(embeddedDir).toString()); |
| } else { |
| pathArg = Starlark.repr(path); |
| } |
| String repr = |
| String.format("local_repository(name = %s, path = %s)", Starlark.repr(name), pathArg); |
| return new ResolvedEvent() { |
| @Override |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public Object getResolvedInformation(XattrProvider xattrProvider) { |
| return ImmutableMap.<String, Object>builder() |
| .put(ResolvedFileValue.ORIGINAL_RULE_CLASS, "local_repository") |
| .put( |
| ResolvedFileValue.ORIGINAL_ATTRIBUTES, |
| ImmutableMap.<String, Object>builder().put("name", name).put("path", path).build()) |
| .put(ResolvedFileValue.NATIVE, repr) |
| .build(); |
| } |
| }; |
| } |
| } |