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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 <source_location>
#include "configure.h"
#include "settings.h"
#include "libctor.h"
#include "tasks.h"
#include "build.h"
#include "execute.h"
std::array<BuildConfigurationEntry, 1024> configFiles;
std::size_t numConfigFiles{0};
int reg(BuildConfigurations (*cb)(),
const std::source_location location)
{
// 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.file_name();
configFiles[numConfigFiles].cb = cb;
++numConfigFiles;
return 0;
}
int reg(const char* location)
{
// 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 =
[](){ return std::vector<BuildConfiguration>{}; };
++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;
}
}
for(std::size_t i = 0; i < numExternalConfigFiles;)
{
if(std::string(location) == externalConfigFiles[i].file)
{
++found;
for(std::size_t j = i; j < numExternalConfigFiles; ++j)
{
externalConfigFiles[j] = externalConfigFiles[j + 1];
}
--numExternalConfigFiles;
}
else
{
++i;
}
}
return found;
}
std::array<ExternalConfigurationEntry, 1024> externalConfigFiles;
std::size_t numExternalConfigFiles{0};
int reg(ExternalConfigurations (*cb)(),
const std::source_location location)
{
// NOTE: std::cout cannot be used here
if(numExternalConfigFiles >= externalConfigFiles.size())
{
fprintf(stderr, "Max %d external configurations currently supported.\n",
(int)externalConfigFiles.size());
exit(1);
}
externalConfigFiles[numExternalConfigFiles].file = location.file_name();
externalConfigFiles[numExternalConfigFiles].cb = cb;
++numExternalConfigFiles;
return 0;
}
namespace
{
bool contains(const std::vector<Source>& sources, const std::string& file)
{
for(const auto& source : sources)
{
if(source.file == file)
{
return true;
}
}
return false;
}
}
bool recompileCheck(const Settings& global_settings, int argc, char* argv[],
bool relaunch_allowed)
{
using namespace std::string_literals;
if(global_settings.verbose > 1)
{
std::cout << "Recompile check (" << numConfigFiles << "):\n";
}
BuildConfiguration config;
config.name = "ctor";
config.cxxflags = std::vector<std::string>({ "-s", "-O3", "-std=c++20" });
if(hasConfiguration(cfg::ctor_includedir))
{
config.cxxflags.push_back("-I"s + getConfiguration(cfg::ctor_includedir));
}
if(hasConfiguration(cfg::ctor_libdir))
{
config.ldflags.push_back("-L"s + getConfiguration(cfg::ctor_libdir));
}
config.ldflags.push_back("-lctor");
config.ldflags.push_back("-pthread");
Settings settings{global_settings};
settings.verbose = -1; // Make check completely silent.
settings.builddir += "/ctor"; // override builddir to use ctor subdir
{
std::filesystem::path buildfile = settings.builddir;
std::filesystem::path currentfile = argv[0];
config.target = std::filesystem::relative(currentfile, buildfile).string();
}
if(std::filesystem::exists(configurationFile))
{
config.sources.push_back(configurationFile.string());
}
for(std::size_t i = 0; i < numConfigFiles; ++i)
{
std::string location = configFiles[i].file;
if(global_settings.verbose > 1)
{
std::cout << " - " << location << "\n";
}
// Ensure that files containing multiple configurations are only added once.
if(!contains(config.sources, location))
{
config.sources.push_back(location);
}
}
for(std::size_t i = 0; i < numExternalConfigFiles; ++i)
{
std::string location = externalConfigFiles[i].file;
if(global_settings.verbose > 1)
{
std::cout << " - " << location << "\n";
}
// Ensure that files containing multiple configurations are only added once.
if(!contains(config.sources, location))
{
config.sources.push_back(location);
}
}
auto tasks = taskFactory({config}, settings, {});
for(auto task : tasks)
{
if(task->registerDepTasks(tasks))
{
return false;
}
}
// Find out if reconfigure is needed
bool reconfigure{false};
for(auto task : tasks)
{
if(task->dirty() &&
task->source() != "" && // only look at source files
task->source() != "configuration.cc") // don't reconfigure if only configuration.cc is changed.
{
reconfigure |= true;
}
}
auto dirty_tasks = build(settings, "ctor", tasks, true); // dryrun
if(dirty_tasks)
{
std::cout << "Rebuilding config.\n";
build(settings, "ctor", tasks); // run for real
}
if(reconfigure)
{
std::vector<std::string> args;
args.push_back("reconfigure");
if(!relaunch_allowed)
{
args.push_back("--no-rerun");
}
for(int i = 1; i < argc; ++i)
{
args.push_back(argv[i]);
}
auto ret = execute(argv[0], args);
//if(ret != 0)
{
exit(ret);
}
}
return dirty_tasks;
}
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