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#include <algorithm>
#include <array>
#include <cassert>
#include <fstream>
#include <iostream>
#include <memory>
#include <numeric>
#include <regex>
#include <string>
#include <vector>
std::string escape_arg(const std::string& arg) {
if (arg.empty() == false &&
arg.find_first_of(" \t\n\v\"") == arg.npos) {
return arg;
}
std::string escaped;
escaped.push_back('"');
for (auto it = arg.begin(); ; ++it) {
int num_backslashes = 0;
while (it != arg.end() && *it == '\\') {
++it;
++num_backslashes;
}
if (it == arg.end()) {
escaped.append(num_backslashes * 2, '\\');
break;
} else if (*it == '"') {
escaped.append((num_backslashes + 1) * 2, '\\');
escaped.push_back('"');
escaped.push_back(*it);
} else {
escaped.append(num_backslashes, '\\');
escaped.push_back(*it);
}
}
escaped.push_back('"');
return escaped;
}
void create_empty_file(std::string const& path) {
std::ofstream ofs(path);
ofs << '\n';
}
const std::string separator = "--sep--";
const std::string logfile_prefix = "--log-file=";
bool starts_with(std::string const& str, std::string const& pref) {
return str.find(pref) == 0;
}
int parse_log_file_arg(std::string const& arg) {
assert(starts_with(arg, logfile_prefix) && "Attempting to parse incorrect arg!");
auto fname = arg.substr(logfile_prefix.size());
create_empty_file(fname);
std::regex regex("MemoryChecker\\.(\\d+)\\.log", std::regex::icase);
std::smatch match;
if (std::regex_search(fname, match, regex)) {
return std::stoi(match[1]);
} else {
throw std::domain_error("Couldn't find desired expression in string: " + fname);
}
}
std::string catch_path(std::string path) {
auto start = path.find("catch");
// try capitalized instead
if (start == std::string::npos) {
start = path.find("Catch");
}
if (start == std::string::npos) {
throw std::domain_error("Couldn't find Catch's base path");
}
auto end = path.find_first_of("\\/", start);
return path.substr(0, end);
}
std::string windowsify_path(std::string path) {
for (auto& c : path) {
if (c == '/') {
c = '\\';
}
}
return path;
}
int exec_cmd(std::string const& cmd, int log_num, std::string const& path) {
std::array<char, 128> buffer;
// cmd has already been escaped outside this function.
auto real_cmd = "OpenCppCoverage --export_type binary:cov-report" + std::to_string(log_num)
+ ".bin --quiet " + "--sources " + escape_arg(path) + " --cover_children -- " + cmd;
std::cout << "=== Marker ===: Cmd: " << real_cmd << '\n';
auto pipe = _popen(real_cmd.c_str(), "r");
if (!pipe) {
throw std::runtime_error("popen() failed!");
}
while (!feof(pipe)) {
if (fgets(buffer.data(), 128, pipe) != nullptr) {
std::cout << buffer.data();
}
}
auto ret = _pclose(pipe);
if (ret == -1) {
throw std::runtime_error("underlying error in pclose()");
}
return ret;
}
// argv should be:
// [0]: our path
// [1]: "--log-file=<path>"
// [2]: "--sep--"
// [3]+: the actual command
int main(int argc, char** argv) {
std::vector<std::string> args(argv, argv + argc);
auto sep = std::find(begin(args), end(args), separator);
assert(sep - begin(args) == 2 && "Structure differs from expected!");
auto num = parse_log_file_arg(args[1]);
auto cmdline = std::accumulate(++sep, end(args), std::string{}, [] (const std::string& lhs, const std::string& rhs) {
return lhs + ' ' + escape_arg(rhs);
});
try {
return exec_cmd(cmdline, num, windowsify_path(catch_path(args[0])));
} catch (std::exception const& ex) {
std::cerr << "Helper failed with: '" << ex.what() << "'\n";
return 12;
}
}
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