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// -*- c++ -*-
// Distributed under the BSD 2-Clause License.
// See accompanying file LICENSE for details.
#include "rebuild.h"
#include <iostream>
#include <filesystem>
#include <algorithm>
#include "execute.h"
#include "configure.h"
#include "settings.h"
#include "libctor.h"
std::array<BuildConfigurationEntry, 1024> configFiles;
std::size_t numConfigFiles{0};
// TODO: Use c++20 when ready, somehing like this:
//int reg(const std::source_location location = std::source_location::current())
int reg(const char* location, std::vector<BuildConfiguration> (*cb)())
{
// NOTE: std::cout cannot be used here
if(numConfigFiles >= configFiles.size())
{
fprintf(stderr, "Max %d build configurations currently supported.\n",
(int)configFiles.size());
exit(1);
}
configFiles[numConfigFiles].file = location;
configFiles[numConfigFiles].cb = cb;
++numConfigFiles;
return 0;
}
int unreg(const char* location)
{
std::size_t found{0};
for(std::size_t i = 0; i < numConfigFiles;)
{
if(std::string(location) == configFiles[i].file)
{
++found;
for(std::size_t j = i; j < numConfigFiles; ++j)
{
configFiles[j] = configFiles[j + 1];
}
--numConfigFiles;
}
else
{
++i;
}
}
return found;
}
void recompileCheck(const Settings& settings, int argc, char* argv[],
bool force, bool relaunch_allowed)
{
using namespace std::string_literals;
bool dirty{force};
std::vector<std::string> args;
args.push_back("-s");
args.push_back("-O3");
args.push_back("-std=c++17");
if(hasConfiguration(cfg::ctor_includedir))
{
args.push_back("-I"s + getConfiguration(cfg::ctor_includedir));
}
if(hasConfiguration(cfg::ctor_libdir))
{
args.push_back("-L"s + getConfiguration(cfg::ctor_libdir));
}
args.push_back("-lctor");
args.push_back("-pthread");
std::filesystem::path binFile(argv[0]);
if(std::filesystem::exists(configurationFile))
{
args.push_back(configurationFile.string());
if(std::filesystem::last_write_time(binFile) <=
std::filesystem::last_write_time(configurationFile))
{
dirty = true;
}
const auto& c = configuration();
if(&c == &default_configuration)
{
// configuration.cc exists, but currently compiled with the default one.
dirty = true;
}
}
if(settings.verbose > 1)
{
std::cout << "Recompile check (" << numConfigFiles << "):\n";
}
for(std::size_t i = 0; i < numConfigFiles; ++i)
{
std::string location = configFiles[i].file;
if(settings.verbose > 1)
{
std::cout << " - " << location << "\n";
}
std::filesystem::path configFile(location);
if(std::filesystem::last_write_time(binFile) <=
std::filesystem::last_write_time(configFile))
{
dirty = true;
}
// Support adding multiple config functions from the same file
if(std::find(args.begin(), args.end(), location) == std::end(args))
{
args.push_back(location);
}
}
args.push_back("-o");
args.push_back(binFile.string());
if(dirty)
{
std::cout << "Rebuilding config\n";
auto tool = getConfiguration(cfg::build_cxx, "/usr/bin/g++");
auto ret = execute(tool, args, settings.verbose > 0);
if(ret != 0)
{
std::cerr << "Failed: ." << ret << "\n";
exit(1);
}
else
{
if(relaunch_allowed)
{
std::cout << "Re-launch\n";
std::vector<std::string> args;
for(int i = 1; i < argc; ++i)
{
args.push_back(argv[i]);
}
exit(execute(argv[0], args, settings.verbose > 0));
}
}
}
}
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