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/*
* Mini version of cargo
*
* main.cpp
* - Entrypoint
*/
#include <iostream>
#include <cstring> // strcmp
#include <map>
#include "debug.h"
#include "manifest.h"
#include "helpers.h"
#include "repository.h"
#include "build.h"
struct ProgramOptions
{
// Input (package) directory
const char* directory = nullptr;
// Directory containing build script outputs
const char* override_directory = nullptr;
// Directory containing "vendored" (packaged) copies of packages
const char* vendor_dir = nullptr;
// Output/build directory
const char* output_directory = nullptr;
// Library search directories
::std::vector<const char*> lib_search_dirs;
bool pause_before_quit = false;
int parse(int argc, const char* argv[]);
void usage() const;
};
int main(int argc, const char* argv[])
{
ProgramOptions opts;
if( opts.parse(argc, argv) ) {
return 1;
}
Debug_DisablePhase("Load Repository");
Debug_DisablePhase("Load Root");
Debug_DisablePhase("Load Dependencies");
//Debug_DisablePhase("Build");
try
{
Debug_SetPhase("Load Repository");
// Load package database
Repository repo;
// TODO: load repository from a local cache
if( opts.vendor_dir )
{
repo.load_vendored(opts.vendor_dir);
}
auto bs_override_dir = opts.override_directory ? ::helpers::path(opts.override_directory) : ::helpers::path();
// 1. Load the Cargo.toml file from the passed directory
Debug_SetPhase("Load Root");
auto dir = ::helpers::path(opts.directory ? opts.directory : ".");
auto m = PackageManifest::load_from_toml( dir / "Cargo.toml" );
// 2. Load all dependencies
Debug_SetPhase("Load Dependencies");
m.load_dependencies(repo, !bs_override_dir.is_valid());
// 3. Build dependency tree and build program.
// TODO: Split creating the build list away from actually running it
BuildOptions build_opts;
build_opts.build_script_overrides = ::std::move(bs_override_dir);
build_opts.output_dir = opts.output_directory ? ::helpers::path(opts.output_directory) : ::helpers::path("output");
build_opts.lib_search_dirs.reserve(opts.lib_search_dirs.size());
for(const auto* d : opts.lib_search_dirs)
build_opts.lib_search_dirs.push_back( ::helpers::path(d) );
//Debug_SetPhase("Enumerate Build");
//auto build_list = MiniCargo_CreateBuildList(m, ::std::move(build_opts));
//Debug_SetPhase("Run Build");
//MiniCargo_RunBuild(build_list, opts.par_level);
Debug_SetPhase("Build");
if( !MiniCargo_Build(m, ::std::move(build_opts)) )
{
::std::cerr << "BUILD FAILED" << ::std::endl;
if(opts.pause_before_quit) {
::std::cout << "Press enter to exit..." << ::std::endl;
::std::cin.get();
}
return 1;
}
}
catch(const ::std::exception& e)
{
::std::cerr << "EXCEPTION: " << e.what() << ::std::endl;
if(opts.pause_before_quit) {
::std::cout << "Press enter to exit..." << ::std::endl;
::std::cin.get();
}
return 1;
}
if(opts.pause_before_quit) {
::std::cout << "Press enter to exit..." << ::std::endl;
::std::cin.get();
}
return 0;
}
int ProgramOptions::parse(int argc, const char* argv[])
{
bool all_free = false;
for(int i = 1; i < argc; i++)
{
const char* arg = argv[i];
if( arg[0] != '-' || all_free )
{
// Free arguments
if( !this->directory ) {
this->directory = arg;
}
else {
}
}
else if( arg[1] != '-' )
{
// Short arguments
switch(arg[1])
{
case 'L':
if(i+1 == argc) {
::std::cerr << "Flag " << arg << " takes an argument" << ::std::endl;
return 1;
}
this->lib_search_dirs.push_back(argv[++i]);
break;
case 'o':
if(i+1 == argc) {
::std::cerr << "Flag " << arg << " takes an argument" << ::std::endl;
return 1;
}
this->output_directory = argv[++i];
break;
case 'h':
break;
default:
::std::cerr << "Unknown flag -" << arg[1] << ::std::endl;
return 1;
}
}
else if( arg[2] == '\0' )
{
all_free = true;
}
else
{
// Long arguments
if( ::std::strcmp(arg, "--script-overrides") == 0 ) {
if(i+1 == argc) {
::std::cerr << "Flag " << arg << " takes an argument" << ::std::endl;
return 1;
}
this->override_directory = argv[++i];
}
else if( ::std::strcmp(arg, "--vendor-dir") == 0 ) {
if(i+1 == argc) {
::std::cerr << "Flag " << arg << " takes an argument" << ::std::endl;
return 1;
}
this->vendor_dir = argv[++i];
}
else if( ::std::strcmp(arg, "--output-dir") == 0 ) {
if(i+1 == argc) {
::std::cerr << "Flag " << arg << " takes an argument" << ::std::endl;
return 1;
}
this->output_directory = argv[++i];
}
else {
::std::cerr << "Unknown flag " << arg << ::std::endl;
return 1;
}
}
}
if( !this->directory /*|| !this->outfile*/ )
{
usage();
exit(1);
}
return 0;
}
void ProgramOptions::usage() const
{
::std::cerr
<< "Usage: minicargo <package dir>" << ::std::endl
;
}
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