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#include "configure.h"
#include <iostream>
#include <filesystem>
#include <fstream>
#include <getoptpp/getoptpp.hpp>
#include "settings.h"
#include "execute.h"
#include "libcppbuild.h"
#include "tasks.h"
std::filesystem::path configurationFile("configuration.cc");
std::filesystem::path configHeaderFile("config.h");
const std::map<std::string, std::string> default_configuration{};
const std::map<std::string, std::string>& __attribute__((weak)) configuration()
{
return default_configuration;
}
bool hasConfiguration(const std::string& key)
{
const auto& c = configuration();
return c.find(key) != c.end();
}
const std::string& getConfiguration(const std::string& key,
const std::string& defaultValue)
{
const auto& c = configuration();
if(hasConfiguration(key))
{
return c.at(key);
}
return defaultValue;
}
int configure(int argc, char* argv[])
{
Settings settings;
settings.builddir = "build";
std::string cmd_str;
for(int i = 0; i < argc; ++i)
{
if(i > 0)
{
cmd_str += " ";
}
cmd_str += argv[i];
}
dg::Options opt;
int key{256};
std::string build_arch;
std::string host_arch;
opt.add("build-dir", required_argument, 'b',
"Set output directory for build files (default: '" +
settings.builddir + "').",
[&]() {
settings.builddir = optarg;
return 0;
});
opt.add("verbose", no_argument, 'v',
"Be verbose. Add multiple times for more verbosity.",
[&]() {
settings.verbose++;
return 0;
});
opt.add("build", required_argument, key++,
"Configure for building on specified architecture.",
[&]() {
build_arch = optarg;
return 0;
});
opt.add("host", required_argument, key++,
"Cross-compile to build programs to run on specified architecture.",
[&]() {
host_arch = optarg;
return 0;
});
opt.add("help", no_argument, 'h',
"Print this help text.",
[&]() {
std::cout << "configure usage stuff\n";
opt.help();
exit(0);
return 0;
});
opt.process(argc, argv);
if(host_arch.empty())
{
host_arch = build_arch;
}
auto tasks = getTasks(settings);
bool needs_cpp{false};
bool needs_c{false};
bool needs_ar{false};
for(const auto& task :tasks)
{
switch(task->sourceLanguage())
{
case Language::Auto:
std::cerr << "TargetLanguage not deduced!\n";
exit(1);
break;
case Language::C:
needs_cpp = false;
break;
case Language::Cpp:
needs_c = true;
break;
}
}
{
std::ofstream istr(configurationFile);
istr << "#include \"libcppbuild.h\"\n\n";
istr << "const std::map<std::string, std::string>& configuration()\n";
istr << "{\n";
istr << " static std::map<std::string, std::string> c =\n";
istr << " {\n";
istr << " { \"cmd\", \"" << cmd_str << "\" },\n";
istr << " { \"" << cfg::builddir << "\", \"" << settings.builddir << "\" },\n";
istr << " { \"" << cfg::target_cc << "\", \"/usr/bin/gcc\" },\n";
istr << " { \"" << cfg::target_cpp << "\", \"/usr/bin/g++\" },\n";
istr << " { \"" << cfg::target_ar << "\", \"/usr/bin/ar\" },\n";
istr << " { \"" << cfg::target_ld << "\", \"/usr/bin/ld\" },\n";
istr << " { \"" << cfg::host_cc << "\", \"/usr/bin/gcc\" },\n";
istr << " { \"" << cfg::host_cpp << "\", \"/usr/bin/g++\" },\n";
istr << " { \"" << cfg::host_ar << "\", \"/usr/bin/ar\" },\n";
istr << " { \"" << cfg::host_ld << "\", \"/usr/bin/ld\" },\n";
istr << " };\n";
istr << " return c;\n";
istr << "}\n";
}
return 0;
}
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