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/*
*/
#include "manifest.h"
#include "debug.h"
#include <vector>
#include <algorithm>
#include <sstream> // stringstream
#include "helpers.h" // path
#ifdef _WIN32
#include <Windows.h>
#endif
struct BuildList
{
struct BuildEnt {
const PackageManifest* package;
unsigned level;
};
::std::vector<BuildEnt> m_list;
void add_dependencies(const PackageManifest& p, unsigned level);
void add_package(const PackageManifest& p, unsigned level);
void sort_list();
struct Iter {
const BuildList& l;
size_t i;
const PackageManifest& operator*() const {
return *this->l.m_list[this->l.m_list.size() - this->i - 1].package;
}
void operator++() {
this->i++;
}
bool operator!=(const Iter& x) const {
return this->i != x.i;
}
Iter begin() const {
return *this;
}
Iter end() {
return Iter{ this->l, this->l.m_list.size() };
}
};
Iter iter() const {
return Iter { *this, 0 };
}
};
class Builder
{
class StringList
{
::std::vector<::std::string> m_cached;
::std::vector<const char*> m_strings;
public:
StringList()
{
}
const ::std::vector<const char*>& get_vec() const
{
return m_strings;
}
void push_back(::std::string s)
{
m_cached.push_back(::std::move(s));
m_strings.push_back(m_cached.back().c_str());
}
void push_back(const char* s)
{
m_strings.push_back(s);
}
};
public:
bool build_target(const PackageManifest& manifest, const PackageTarget& target) const;
bool build_library(const PackageManifest& manifest) const;
private:
bool spawn_process(const StringList& args, const ::helpers::path& logfile) const;
};
void MiniCargo_Build(const PackageManifest& manifest)
{
BuildList list;
list.add_dependencies(manifest, 0);
list.sort_list();
// dedup?
for(const auto& p : list.iter())
{
DEBUG("WILL BUILD " << p.name() << " from " << p.manifest_path());
}
// Build dependencies
Builder builder;
for(const auto& p : list.iter())
{
if( ! builder.build_library(p) )
{
return;
}
}
// TODO: If the manifest doesn't have a library, build the binary
builder.build_library(manifest);
}
void BuildList::add_dependencies(const PackageManifest& p, unsigned level)
{
for (const auto& dep : p.dependencies())
{
if( dep.is_optional() )
{
continue ;
}
add_package(dep.get_package(), level+1);
}
}
void BuildList::add_package(const PackageManifest& p, unsigned level)
{
for(auto& ent : m_list)
{
if(ent.package == &p)
{
ent.level = level;
return ;
}
}
m_list.push_back({ &p, level });
for (const auto& dep : p.dependencies())
{
add_package(dep.get_package(), level+1);
}
}
void BuildList::sort_list()
{
::std::sort(m_list.begin(), m_list.end(), [](const auto& a, const auto& b){ return a.level < b.level; });
for(auto it = m_list.begin(); it != m_list.end(); )
{
auto it2 = ::std::find_if(m_list.begin(), it, [&](const auto& x){ return x.package == it->package; });
if( it2 != it )
{
it = m_list.erase(it);
}
else
{
++it;
}
}
}
bool Builder::build_target(const PackageManifest& manifest, const PackageTarget& target) const
{
auto outdir = ::helpers::path("output");
auto outfile = outdir / ::format("lib", target.m_name, ".hir");
// TODO: Determine if it needs re-running
// Rerun if:
// > `outfile` is missing
// > mrustc/minicargo is newer than `outfile`
// > build script has changed
// > any input file has changed (requires depfile from mrustc)
StringList args;
args.push_back(::helpers::path(manifest.manifest_path()).parent() / ::helpers::path(target.m_path));
args.push_back("--crate-name"); args.push_back(target.m_name.c_str());
args.push_back("--crate-type"); args.push_back("rlib");
args.push_back("-o"); args.push_back(outfile);
args.push_back("-L"); args.push_back(outdir);
//for(const auto& dir : manifest.build_script.rustc_link_search) {
// args.push_back("-L"); args.push_back(dir.second.c_str());
//}
//for(const auto& lib : manifest.build_script.rustc_link_lib) {
// args.push_back("-l"); args.push_back(lib.second.c_str());
//}
//for(const auto& cfg : manifest.build_script.rustc_cfg) {
// args.push_back("--cfg"); args.push_back(cfg.c_str());
//}
//for(const auto& flag : manifest.build_script.rustc_flags) {
// args.push_back(flag.c_str());
//}
// TODO: Environment variables (rustc_env)
return this->spawn_process(args, outfile + "_dbg.txt");
}
bool Builder::build_library(const PackageManifest& manifest) const
{
if( manifest.build_script() != "" )
{
// Locate a build script override file
// > Note, override file can specify a list of commands to run.
//manifest.script_output = BuildScript::load( override_file );
// Otherwise, compile and run build script
//manifest.script_output = BuildScript::load( ::helpers::path("output") / "build_" + manifest.name + ".txt" );
// Parse build script output.
throw ::std::runtime_error("TODO: Build script");
}
return this->build_target(manifest, manifest.get_library());
}
bool Builder::spawn_process(const StringList& args, const ::helpers::path& logfile) const
{
#ifdef _WIN32
::std::stringstream cmdline;
cmdline << "mrustc.exe";
for (const auto& arg : args.get_vec())
cmdline << " " << arg;
auto cmdline_str = cmdline.str();
DEBUG("Calling " << cmdline_str);
CreateDirectory(static_cast<::std::string>(logfile.parent()).c_str(), NULL);
STARTUPINFO si = { 0 };
si.cb = sizeof(si);
#if 1
si.dwFlags = STARTF_USESTDHANDLES;
si.hStdInput = NULL;
si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
{
SECURITY_ATTRIBUTES sa = { 0 };
sa.nLength = sizeof(sa);
sa.bInheritHandle = TRUE;
si.hStdOutput = CreateFile( static_cast<::std::string>(logfile).c_str(), GENERIC_WRITE, FILE_SHARE_READ, &sa, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
DWORD tmp;
WriteFile(si.hStdOutput, cmdline_str.data(), cmdline_str.size(), &tmp, NULL);
WriteFile(si.hStdOutput, "\n", 1, &tmp, NULL);
}
#endif
PROCESS_INFORMATION pi = { 0 };
char env[] =
"MRUSTC_DEBUG=""\0"
;
CreateProcessA("x64\\Release\\mrustc.exe", (LPSTR)cmdline_str.c_str(), NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi);
CloseHandle(si.hStdOutput);
WaitForSingleObject(pi.hProcess, INFINITE);
DWORD status = 1;
GetExitCodeProcess(pi.hProcess, &status);
if (status != 0)
{
DEBUG("Compiler exited with non-zero exit status " << status);
return false;
}
#else
// TODO: posix_spawn
return false;
#endif
return true;
}
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