/*
* Copyright 2014-present Facebook, Inc.
*
* 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.facebook.buck.ocaml;
import com.facebook.buck.cli.BuckConfig;
import com.facebook.buck.cxx.CompilerProvider;
import com.facebook.buck.cxx.CxxPlatform;
import com.facebook.buck.cxx.PreprocessorProvider;
import com.facebook.buck.io.ExecutableFinder;
import com.facebook.buck.rules.HashedFileTool;
import com.facebook.buck.rules.Tool;
import com.google.common.collect.ImmutableList;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Optional;
public class OcamlBuckConfig {
private static final String SECTION = "ocaml";
private static final Path DEFAULT_OCAML_COMPILER = Paths.get("ocamlopt.opt");
private static final Path DEFAULT_OCAML_BYTECODE_COMPILER = Paths.get("ocamlc.opt");
private static final Path DEFAULT_OCAML_DEP_TOOL = Paths.get("ocamldep.opt");
private static final Path DEFAULT_OCAML_YACC_COMPILER = Paths.get("ocamlyacc");
private static final Path DEFAULT_OCAML_DEBUG = Paths.get("ocamldebug");
private static final Path DEFAULT_OCAML_LEX_COMPILER = Paths.get("ocamllex.opt");
private final BuckConfig delegate;
private final CxxPlatform cxxPlatform;
public OcamlBuckConfig(BuckConfig delegate, CxxPlatform cxxPlatform) {
this.delegate = delegate;
this.cxxPlatform = cxxPlatform;
}
public Optional<Tool> getOcamlCompiler() {
return getTool(SECTION, "ocaml.compiler", DEFAULT_OCAML_COMPILER);
}
public CompilerProvider getCCompiler() {
return cxxPlatform.getCc();
}
public PreprocessorProvider getCPreprocessor() {
return cxxPlatform.getCpp();
}
public Optional<Tool> getOcamlDepTool() {
return getTool(SECTION, "dep.tool", DEFAULT_OCAML_DEP_TOOL);
}
public Optional<Tool> getYaccCompiler() {
return getTool(SECTION, "yacc.compiler", DEFAULT_OCAML_YACC_COMPILER);
}
public Optional<Tool> getLexCompiler() {
return getTool(SECTION, "lex.compiler", DEFAULT_OCAML_LEX_COMPILER);
}
public Optional<String> getOcamlInteropIncludesDir() {
return delegate.getValue(SECTION, "interop.includes");
}
public Optional<String> getWarningsFlags() {
return delegate.getValue(SECTION, "warnings_flags");
}
public Optional<Tool> getOcamlBytecodeCompiler() {
return getTool(SECTION, "ocaml.bytecode.compiler", DEFAULT_OCAML_BYTECODE_COMPILER);
}
public CompilerProvider getCxxCompiler() {
return cxxPlatform.getCxx();
}
/** @return all C/C++ platform flags used to preprocess, compiler, and assemble C sources. */
public ImmutableList<String> getCFlags() {
return ImmutableList.<String>builder()
.addAll(cxxPlatform.getCppflags())
.addAll(cxxPlatform.getCflags())
.addAll(cxxPlatform.getAsflags())
.build();
}
public ImmutableList<String> getLdFlags() {
return cxxPlatform.getLdflags();
}
public Optional<Tool> getOcamlDebug() {
return getTool(SECTION, "debug", DEFAULT_OCAML_DEBUG);
}
public CxxPlatform getCxxPlatform() {
return cxxPlatform;
}
private Optional<Path> getExecutable(String section, String label, Path defaultValue) {
return new ExecutableFinder()
.getOptionalExecutable(
delegate.getPath(section, label).orElse(defaultValue), delegate.getEnvironment());
}
private Optional<Tool> getTool(String section, String label, Path defaultValue) {
Optional<Path> executable = getExecutable(section, label, defaultValue);
if (!executable.isPresent()) {
return Optional.empty();
}
return Optional.of(new HashedFileTool(executable.get()));
}
}