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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "tools/gn/script_target_generator.h"
#include "tools/gn/err.h"
#include "tools/gn/filesystem_utils.h"
#include "tools/gn/scope.h"
#include "tools/gn/value.h"
#include "tools/gn/value_extractors.h"
ScriptTargetGenerator::ScriptTargetGenerator(Target* target,
Scope* scope,
const Token& function_token,
Err* err)
: TargetGenerator(target, scope, function_token, err) {
}
ScriptTargetGenerator::~ScriptTargetGenerator() {
}
void ScriptTargetGenerator::DoRun() {
target_->set_output_type(Target::CUSTOM);
FillExternal();
FillSources();
FillScript();
FillScriptArgs();
FillOutputs();
// Script outputs don't depend on the current toolchain so we can skip adding
// that dependency.
}
void ScriptTargetGenerator::FillScript() {
// If this gets called, the target type requires a script, so error out
// if it doesn't have one.
// TODO(brettw) hook up a constant in variables.h
const Value* value = scope_->GetValue("script", true);
if (!value) {
*err_ = Err(function_token_, "This target type requires a \"script\".");
return;
}
if (!value->VerifyTypeIs(Value::STRING, err_))
return;
target_->script_values().set_script(
scope_->GetSourceDir().ResolveRelativeFile(value->string_value()));
}
void ScriptTargetGenerator::FillScriptArgs() {
const Value* value = scope_->GetValue("args", true);
if (!value)
return;
std::vector<std::string> args;
if (!ExtractListOfStringValues(*value, &args, err_))
return;
target_->script_values().swap_in_args(&args);
}
void ScriptTargetGenerator::FillOutputs() {
// TODO(brettw) hook up a constant in variables.h
const Value* value = scope_->GetValue("outputs", true);
if (!value)
return;
Target::FileList outputs;
if (!ExtractListOfRelativeFiles(scope_->settings()->build_settings(), *value,
scope_->GetSourceDir(), &outputs, err_))
return;
// Validate that outputs are in the output dir.
CHECK(outputs.size() == value->list_value().size());
for (size_t i = 0; i < outputs.size(); i++) {
if (!EnsureStringIsInOutputDir(
GetBuildSettings()->build_dir(),
outputs[i].value(), value->list_value()[i], err_))
return;
}
target_->script_values().swap_in_outputs(&outputs);
}
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