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// -*- c++ -*-
// Distributed under the BSD 2-Clause License.
// See accompanying file LICENSE for details.
#include "task_fn.h"
#include <iostream>
#include <fstream>
#include <cassert>
#include "ctor.h"
#include "execute.h"
#include "util.h"
TaskFn::TaskFn(const ctor::build_configuration& config_, const ctor::settings& settings_,
const std::string& sourceDir_, const ctor::source& source)
: Task(config_, settings_, sourceDir_)
, sourceFile(sourceDir_)
, config(config_)
, settings(settings_)
{
sourceFile /= source.file;
for(const auto& src : config.sources)
{
auto _src = sourceFile / src.file;
sources.push_back(_src.string());
}
std::filesystem::create_directories(std::filesystem::path(settings.builddir) / sourceFile.parent_path());
target_type = config.type;
source_language = source.language;
if(source.output.empty())
{
std::filesystem::path base = sourceFile.parent_path();
_targetFile =
//std::filesystem::path(settings.builddir) /
base / config.target;
}
else
{
_targetFile = source.output;
}
sourceListFile = targetFile().parent_path() / targetFile().filename();
sourceListFile += ".sources";
}
bool TaskFn::dirtyInner()
{
if(!std::filesystem::exists(targetFile()))
{
//std::cout << "Missing targetFile\n";
return true;
}
if(!std::filesystem::exists(sourceListFile))
{
//std::cout << "Missing sourceListFile\n";
return true;
}
{
auto lastSourceList = readFile(sourceListFile.string());
if(sourceListString() != lastSourceList)
{
//std::cout << "The compiler sourceList changed\n";
return true;
}
}
std::filesystem::file_time_type last_changed{};
bool missing{false};
const auto visitor = overloaded
{
[](std::monostate) {},
[&](ctor::GeneratorCb)
{
if(!std::filesystem::exists(sourceFile))
{
missing = true;
}
last_changed = std::filesystem::last_write_time(sourceFile);
},
[&](ctor::GeneratorCb2)
{
bool first{true};
for(const auto& source : sources)
{
if(!std::filesystem::exists(source))
{
missing |= true;
}
else
{
if(first)
{
last_changed = std::filesystem::last_write_time(source);
}
else
{
last_changed =
std::max(last_changed,
std::filesystem::last_write_time(source));
}
}
first = false;
}
},
};
std::visit(visitor, config.function);
if(missing)
{
return true;
}
if(last_changed > std::filesystem::last_write_time(targetFile()))
{
//std::cout << "The targetFile older than sourceFile\n";
return true;
}
return false;
}
int TaskFn::runInner()
{
// if(!std::filesystem::exists(sourceFile))
// {
// std::cout << "Missing source file: " << sourceFile.string() << "\n";
// return 1;
// }
{ // Write sourceList to file.
std::ofstream sourceListStream(sourceListFile.string());
std::cout << "Write to sources file: " << sourceListFile.string() << '\n';
sourceListStream << sourceListString();
std::cout << "Content: " << sourceListString() << '\n';
}
if(settings.verbose >= 0)
{
std::string output = "Fn " +
sourceFile.lexically_normal().string() + " => " +
targetFile().lexically_normal().string() + '\n';
std::cout << output << std::flush;
}
int res{};
const auto visitor = overloaded
{
[](std::monostate) {},
[&](ctor::GeneratorCb cb)
{
res = cb(sourceFile.string(),
targetFile().string(),
config,
settings);
},
[&](ctor::GeneratorCb2 cb)
{
res = cb(sources,
targetFile().string(),
config,
settings);
},
};
std::visit(visitor, config.function);
if(res != 0)
{
std::filesystem::remove(targetFile());
}
return res;
}
int TaskFn::clean()
{
if(std::filesystem::exists(targetFile()))
{
std::cout << "Removing " << targetFile().string() << "\n";
std::filesystem::remove(targetFile());
}
if(std::filesystem::exists(sourceListFile))
{
std::cout << "Removing " << sourceListFile.string() << "\n";
std::filesystem::remove(sourceListFile);
}
return 0;
}
std::vector<std::string> TaskFn::depends() const
{
return {};
}
std::string TaskFn::target() const
{
return _targetFile.string();
}
std::filesystem::path TaskFn::targetFile() const
{
return std::filesystem::path(settings.builddir) / sourceDir / _targetFile;
}
std::string TaskFn::sourceListString() const
{
std::string sourceListStr;
for(const auto& source : config.sources)
{
sourceListStr += " " + source.file;
}
return sourceListStr;
}
bool TaskFn::derived() const
{
return false;
}
std::string TaskFn::toJSON() const
{
return {}; // TODO: Not sure how to express this...
}
std::string TaskFn::source() const
{
return sourceFile.string();
}
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