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/*
* Copyright 2018 WebAssembly Community Group participants
*
* 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.
*/
//
// Command line helpers.
//
#include "support/path.h"
namespace wasm {
namespace Path {
char getPathSeparator() {
// TODO: use c++17's path separator
// http://en.cppreference.com/w/cpp/experimental/fs/path
#if defined(WIN32) || defined(_WIN32)
return '\\';
#else
return '/';
#endif
}
std::string getDirName(const std::string& path) {
auto sep = path.rfind(getPathSeparator());
if (sep == std::string::npos) {
return "";
}
return path.substr(0, sep);
}
std::string getBaseName(const std::string& path) {
auto sep = path.rfind(getPathSeparator());
if (sep == std::string::npos) {
return path;
}
return path.substr(sep + 1);
}
std::string getBinaryenRoot() {
auto* envVar = getenv("BINARYEN_ROOT");
if (envVar) {
return envVar;
}
return ".";
}
static std::string binDir;
std::string getBinaryenBinDir() {
if (binDir.empty()) {
return getBinaryenRoot() + getPathSeparator() + "bin" + getPathSeparator();
} else {
return binDir;
}
}
void setBinaryenBinDir(const std::string& dir) {
binDir = dir;
if (binDir.back() != getPathSeparator()) {
binDir += getPathSeparator();
}
}
// Gets the path to a binaryen binary tool, like wasm-opt
std::string getBinaryenBinaryTool(const std::string& name) {
return getBinaryenBinDir() + name;
}
} // namespace Path
} // namespace wasm