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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 "Utils.h"
#include <err.h>
#include <fts.h>
#include <string.h>
#include <unistd.h>
#include <sstream>
#include <string>
#include <vector>
#include <android-base/strings.h>
#include "DeclarationDatabase.h"
std::string getWorkingDir() {
char buf[PATH_MAX];
if (!getcwd(buf, sizeof(buf))) {
err(1, "getcwd failed");
}
return buf;
}
std::vector<std::string> collectHeaders(const std::string& directory,
const std::unordered_set<std::string>& ignored_directories) {
std::vector<std::string> headers;
char* dir_argv[2] = { const_cast<char*>(directory.c_str()), nullptr };
std::unique_ptr<FTS, decltype(&fts_close)> fts(
fts_open(dir_argv, FTS_LOGICAL | FTS_NOCHDIR, nullptr), fts_close);
if (!fts) {
err(1, "failed to open directory '%s'", directory.c_str());
}
FTSENT* skipping = nullptr;
while (FTSENT* ent = fts_read(fts.get())) {
if (ent->fts_info & FTS_DP) {
if (ent == skipping) {
skipping = nullptr;
}
continue;
}
if (skipping != nullptr) {
continue;
}
if (ent->fts_info & FTS_D) {
if (ignored_directories.count(ent->fts_path) != 0) {
// fts_read guarantees that `ent` is valid and okay to hold on to until
// after it's returned with FTS_DP set.
skipping = ent;
}
continue;
}
std::string path = ent->fts_path;
if (!android::base::EndsWith(path, ".h")) {
continue;
}
headers.push_back(std::move(path));
}
return headers;
}
llvm::StringRef StripPrefix(llvm::StringRef string, llvm::StringRef prefix) {
if (string.startswith(prefix)) {
return string.drop_front(prefix.size());
}
return string;
}
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