build.et

#!/usr/bin/env et

import std.( os, fs, str, term );
import cxxproj.cxxproj;

# will set CC variable accordingly
eth = cxx_new_proj();

self_prefix = false;
prefix = os.get_env( 'PREFIX' );
if prefix.empty() {
	prefix = os.get_env( 'PWD' );
	self_prefix = true;
}

eth.add_flags( [ '-fPIC', '-Wall', '-Wextra', '-Wno-unused-parameter',
		 '-DBUILD_PREFIX_DIR='  + prefix, '-Wl,-rpath,' + prefix + '/lib/ethereal/' ] );

if os.get_env( 'CC' ) != 'g++' {
	eth.add_flags( [ "-Wno-c99-extensions", "-Wno-unused-command-line-argument" ] );
}

eth.add_lib_dirs( [ '-L./buildfiles' ] );

if args.len() > 1 && args.find( 'debug' ) >= 0 || args.find( 'memlog' ) >= 0 {
	if os.exec( 'stat buildfiles 1>/dev/null 2>&1' ) == 0 && os.exec( 'stat buildfiles/.debug_mode 1>/dev/null 2>&1' ) != 0 {
		#os.exec( 'rm -rf buildfiles && mkdir buildfiles && touch buildfiles/.debug_mode' );
	}
	if args.find( 'debug' ) >= 0 { eth.add_flags( [ '-DDEBUG_MODE', '-DMEM_LOGS' ] ); }
	else { eth.add_flags( [ '-DMEM_LOGS' ] ); }
} else {
	if os.exec( 'stat buildfiles 1>/dev/null 2>&1' ) == 0 && os.exec( 'stat buildfiles/.debug_mode 1>/dev/null 2>&1' ) == 0 {
		#os.exec( 'rm -rf buildfiles' );
	}
	eth.add_flags( [ '-march=native', '-O2', '-flto' ] );
}

if !eth.use_lib( 'libdl' ) {
	println( 'libdl (required) was not found, quitting' );
	exit( 1 );
}

if !eth.use_lib( 'gmpxx' ) {
	println( 'libgmpxx (required) was not found, quitting' );
	exit( 1 );
}

srcs = fs.dir_entries( 'src', fs.ent.RECURSE );

eth.add_build( 'et', 'dynamic' ).add_files( srcs, '' );

println( eth );

if args.len() > 1 && args.find( 'install' ) >= 0 || self_prefix == true {
	if os.get_env( 'EUID' ).empty() || os.name == 'osx' {
		#os.install( 'buildfiles/et', os.get_env( 'PREFIX' ) + '/bin/' );
	} else {
		cprintln( '{r}Run as root to install the built files{0}' );
	}
}