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/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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.
*/
#include "make.h"
#include "command.h"
#include "print.h"
#include "util.h"
#include <json/reader.h>
#include <json/writer.h>
#include <json/value.h>
#include <fstream>
#include <string>
#include <map>
#include <thread>
#include <sys/types.h>
#include <dirent.h>
#include <string.h>
using namespace std;
static bool
map_contains(const map<string,string>& m, const string& k, const string& v) {
map<string,string>::const_iterator it = m.find(k);
if (it == m.end()) {
return false;
}
return it->second == v;
}
static string
make_cache_filename(const string& outDir)
{
string filename(outDir);
return filename + "/.bit_cache";
}
bool
Module::HasClass(const string& cl)
{
for (vector<string>::const_iterator c = classes.begin(); c != classes.end(); c++) {
if (*c == cl) {
return true;
}
}
return false;
}
BuildVars::BuildVars(const string& outDir, const string& buildProduct,
const string& buildVariant, const string& buildType)
:m_filename(),
m_cache()
{
m_cache["TARGET_PRODUCT"] = buildProduct;
m_cache["TARGET_BUILD_VARIANT"] = buildVariant;
m_cache["TARGET_BUILD_TYPE"] = buildType;
// If we have any problems reading the file, that's ok, just do
// uncached calls to make / soong.
if (outDir == "") {
return;
}
m_filename = make_cache_filename(outDir);
std::ifstream stream(m_filename, std::ifstream::binary);
if (stream.fail()) {
return;
}
Json::Value json;
Json::CharReaderBuilder builder;
if (!Json::parseFromStream(builder, stream, &json, /* errorMessage = */ nullptr)) {
return;
}
if (!json.isObject()) {
return;
}
map<string,string> cache;
vector<string> names = json.getMemberNames();
const int N = names.size();
for (int i=0; i<N; i++) {
const string& name = names[i];
const Json::Value& value = json[name];
if (!value.isString()) {
continue;
}
cache[name] = value.asString();
}
// If all of the base variables match, then we can use this cache. Otherwise, use our
// base one. The next time someone reads a value, the new one, with our base varaibles
// will be saved.
if (map_contains(cache, "TARGET_PRODUCT", buildProduct)
&& map_contains(cache, "TARGET_BUILD_VARIANT", buildVariant)
&& map_contains(cache, "TARGET_BUILD_TYPE", buildType)) {
m_cache = cache;
}
}
BuildVars::~BuildVars()
{
}
void
BuildVars::save()
{
if (m_filename == "") {
return;
}
Json::StreamWriterBuilder factory;
factory["indentation"] = " ";
std::unique_ptr<Json::StreamWriter> const writer(factory.newStreamWriter());
Json::Value json(Json::objectValue);
for (map<string,string>::const_iterator it = m_cache.begin(); it != m_cache.end(); it++) {
json[it->first] = it->second;
}
std::ofstream stream(m_filename, std::ofstream::binary);
writer->write(json, &stream);
}
string
BuildVars::GetBuildVar(const string& name, bool quiet)
{
int err;
map<string,string>::iterator it = m_cache.find(name);
if (it == m_cache.end()) {
Command cmd("build/soong/soong_ui.bash");
cmd.AddArg("--dumpvar-mode");
cmd.AddArg(name);
string output = trim(get_command_output(cmd, &err, quiet));
if (err == 0) {
m_cache[name] = output;
save();
return output;
} else {
return string();
}
} else {
return it->second;
}
}
void
json_error(const string& filename, const char* error, bool quiet)
{
if (!quiet) {
print_error("Unable to parse module info file (%s): %s", error, filename.c_str());
print_error("Have you done a full build?");
}
exit(1);
}
static void
get_values(const Json::Value& json, const string& name, vector<string>* result)
{
Json::Value nullValue;
const Json::Value& value = json.get(name, nullValue);
if (!value.isArray()) {
return;
}
const int N = value.size();
for (int i=0; i<N; i++) {
const Json::Value& child = value[i];
if (child.isString()) {
result->push_back(child.asString());
}
}
}
void
read_modules(const string& buildOut, const string& device, map<string,Module>* result, bool quiet)
{
string filename(string(buildOut + "/target/product/") + device + "/module-info.json");
std::ifstream stream(filename, std::ifstream::binary);
if (stream.fail()) {
if (!quiet) {
print_error("Unable to open module info file: %s", filename.c_str());
print_error("Have you done a full build?");
}
exit(1);
}
Json::Value json;
Json::CharReaderBuilder builder;
if (!Json::parseFromStream(builder, stream, &json, /* errorMessage = */ nullptr)) {
json_error(filename, "can't parse json format", quiet);
return;
}
if (!json.isObject()) {
json_error(filename, "root element not an object", quiet);
return;
}
vector<string> names = json.getMemberNames();
const int N = names.size();
for (int i=0; i<N; i++) {
const string& name = names[i];
const Json::Value& value = json[name];
if (!value.isObject()) {
continue;
}
Module module;
module.name = name;
get_values(value, "class", &module.classes);
get_values(value, "path", &module.paths);
get_values(value, "installed", &module.installed);
// Only keep classes we can handle
for (ssize_t i = module.classes.size() - 1; i >= 0; i--) {
string cl = module.classes[i];
if (!(cl == "JAVA_LIBRARIES" || cl == "EXECUTABLES" || cl == "SHARED_LIBRARIES"
|| cl == "APPS" || cl == "NATIVE_TESTS")) {
module.classes.erase(module.classes.begin() + i);
}
}
if (module.classes.size() == 0) {
continue;
}
// Only target modules (not host)
for (ssize_t i = module.installed.size() - 1; i >= 0; i--) {
string fn = module.installed[i];
if (!starts_with(fn, buildOut + "/target/")) {
module.installed.erase(module.installed.begin() + i);
}
}
if (module.installed.size() == 0) {
continue;
}
(*result)[name] = module;
}
}
int
build_goals(const vector<string>& goals)
{
Command cmd("build/soong/soong_ui.bash");
cmd.AddArg("--make-mode");
for (size_t i=0; i<goals.size(); i++) {
cmd.AddArg(goals[i]);
}
return run_command(cmd);
}