/*
* Copyright (C) 2015, 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 "options.h"
#include <cstring>
#include <iostream>
#include <stdio.h>
#include "logging.h"
#include "os.h"
using std::cerr;
using std::endl;
using std::string;
using std::unique_ptr;
using std::vector;
namespace android {
namespace aidl {
namespace {
unique_ptr<JavaOptions> java_usage() {
fprintf(stderr,
"usage: aidl OPTIONS INPUT [OUTPUT]\n"
" aidl --preprocess OUTPUT INPUT...\n"
"\n"
"OPTIONS:\n"
" -I<DIR> search path for import statements.\n"
" -d<FILE> generate dependency file.\n"
" -a generate dependency file next to the output file with "
"the name based on the input file.\n"
" -p<FILE> file created by --preprocess to import.\n"
" -o<FOLDER> base output folder for generated files.\n"
" -b fail when trying to compile a parcelable.\n"
"\n"
"INPUT:\n"
" An aidl interface file.\n"
"\n"
"OUTPUT:\n"
" The generated interface files.\n"
" If omitted and the -o option is not used, the input filename is "
"used, with the .aidl extension changed to a .java extension.\n"
" If the -o option is used, the generated files will be placed in "
"the base output folder, under their package folder\n");
return unique_ptr<JavaOptions>(nullptr);
}
} // namespace
unique_ptr<JavaOptions> JavaOptions::Parse(int argc, const char* const* argv) {
unique_ptr<JavaOptions> options(new JavaOptions());
int i = 1;
if (argc >= 2 && 0 == strcmp(argv[1], "--preprocess")) {
if (argc < 4) {
return java_usage();
}
options->output_file_name_ = argv[2];
for (int i = 3; i < argc; i++) {
options->files_to_preprocess_.push_back(argv[i]);
}
options->task = PREPROCESS_AIDL;
return options;
}
options->task = COMPILE_AIDL_TO_JAVA;
// OPTIONS
while (i < argc) {
const char* s = argv[i];
const size_t len = strlen(s);
if (s[0] != '-') {
break;
}
if (len <= 1) {
fprintf(stderr, "unknown option (%d): %s\n", i, s);
return java_usage();
}
// -I<system-import-path>
if (s[1] == 'I') {
if (len > 2) {
options->import_paths_.push_back(s + 2);
} else {
fprintf(stderr, "-I option (%d) requires a path.\n", i);
return java_usage();
}
} else if (s[1] == 'd') {
if (len > 2) {
options->dep_file_name_ = s + 2;
} else {
fprintf(stderr, "-d option (%d) requires a file.\n", i);
return java_usage();
}
} else if (strcmp(s, "-a") == 0) {
options->auto_dep_file_ = true;
} else if (s[1] == 'p') {
if (len > 2) {
options->preprocessed_files_.push_back(s + 2);
} else {
fprintf(stderr, "-p option (%d) requires a file.\n", i);
return java_usage();
}
} else if (s[1] == 'o') {
if (len > 2) {
options->output_base_folder_= s + 2;
} else {
fprintf(stderr, "-o option (%d) requires a path.\n", i);
return java_usage();
}
} else if (strcmp(s, "-b") == 0) {
options->fail_on_parcelable_ = true;
} else {
// s[1] is not known
fprintf(stderr, "unknown option (%d): %s\n", i, s);
return java_usage();
}
i++;
}
// INPUT
if (i < argc) {
options->input_file_name_ = argv[i];
i++;
} else {
fprintf(stderr, "INPUT required\n");
return java_usage();
}
if (!EndsWith(options->input_file_name_, ".aidl")) {
cerr << "Expected .aidl file for input but got "
<< options->input_file_name_ << endl;
return java_usage();
}
// OUTPUT
if (i < argc) {
options->output_file_name_ = argv[i];
i++;
} else if (options->output_base_folder_.empty()) {
// copy input into output and change the extension from .aidl to .java
options->output_file_name_= options->input_file_name_;
if (!ReplaceSuffix(".aidl", ".java", &options->output_file_name_)) {
// we should never get here since we validated the suffix.
LOG(FATAL) << "Internal aidl error.";
return java_usage();
}
}
// anything remaining?
if (i != argc) {
fprintf(stderr, "unknown option%s:",
(i == argc - 1 ? (const char*)"" : (const char*)"s"));
for (; i < argc - 1; i++) {
fprintf(stderr, " %s", argv[i]);
}
fprintf(stderr, "\n");
return java_usage();
}
return options;
}
string JavaOptions::DependencyFilePath() const {
if (auto_dep_file_) {
return output_file_name_ + ".d";
}
return dep_file_name_;
}
namespace {
unique_ptr<CppOptions> cpp_usage() {
cerr << "usage: aidl-cpp INPUT_FILE HEADER_DIR OUTPUT_FILE" << endl
<< endl
<< "OPTIONS:" << endl
<< " -I<DIR> search path for import statements" << endl
<< " -d<FILE> generate dependency file" << endl
<< endl
<< "INPUT_FILE:" << endl
<< " an aidl interface file" << endl
<< "HEADER_DIR:" << endl
<< " empty directory to put generated headers" << endl
<< "OUTPUT_FILE:" << endl
<< " path to write generated .cpp code" << endl;
return unique_ptr<CppOptions>(nullptr);
}
} // namespace
unique_ptr<CppOptions> CppOptions::Parse(int argc, const char* const* argv) {
unique_ptr<CppOptions> options(new CppOptions());
int i = 1;
// Parse flags, all of which start with '-'
for ( ; i < argc; ++i) {
const size_t len = strlen(argv[i]);
const char *s = argv[i];
if (s[0] != '-') {
break; // On to the positional arguments.
}
if (len < 2) {
cerr << "Invalid argument '" << s << "'." << endl;
return cpp_usage();
}
const string the_rest = s + 2;
if (s[1] == 'I') {
options->import_paths_.push_back(the_rest);
} else if (s[1] == 'd') {
options->dep_file_name_ = the_rest;
} else {
cerr << "Invalid argument '" << s << "'." << endl;
return cpp_usage();
}
}
// There are exactly three positional arguments.
const int remaining_args = argc - i;
if (remaining_args != 3) {
cerr << "Expected 3 positional arguments but got " << remaining_args << "." << endl;
return cpp_usage();
}
options->input_file_name_ = argv[i];
options->output_header_dir_ = argv[i + 1];
options->output_file_name_ = argv[i + 2];
if (!EndsWith(options->input_file_name_, ".aidl")) {
cerr << "Expected .aidl file for input but got " << options->input_file_name_ << endl;
return cpp_usage();
}
return options;
}
bool EndsWith(const string& str, const string& suffix) {
if (str.length() < suffix.length()) {
return false;
}
return std::equal(str.crbegin(), str.crbegin() + suffix.length(),
suffix.crbegin());
}
bool ReplaceSuffix(const string& old_suffix,
const string& new_suffix,
string* str) {
if (!EndsWith(*str, old_suffix)) return false;
str->replace(str->length() - old_suffix.length(),
old_suffix.length(),
new_suffix);
return true;
}
} // namespace android
} // namespace aidl