hop_runner.dart

library hop_runner;

import 'dart:async';
import 'dart:io';
import 'package:hop/hop.dart';
import 'package:hop/hop_tasks.dart';

void main() {

  final String out = "out";
  final String entryPointDir = "web";
  final String entryPoint = "webui_chained_hop";
  
  Task dwc = createWebuiCompilerTask("$entryPointDir/$entryPoint.html",output:out);
  addTask('webui', dwc);
  
  Task d2js = createDart2JsTask(["$out/$entryPoint.html_bootstrap.dart"], liveTypeAnalysis: true, rejectDeprecatedFeatures: true);
  addTask('dart2js', d2js);
  
  addTask('app2js',dwc.chain("webui").and("dart2js", d2js));
    
  runHop();
}

Task createWebuiCompilerTask(String entryPoint,{String output:"web/out"}){
  final entryPointFile = new File(entryPoint);
  final packageDir = new Directory('packages');
  
  assert(packageDir.existsSync());
  assert(entryPointFile.existsSync() && entryPoint.endsWith(".html"));
  
  final args = ["--package-root=${packageDir.path}/",
                "packages/web_ui/dwc.dart",
                "--out",
                "$output/",
                "$entryPoint"
                ];
  
  return new Task.async((TaskContext context){
    return _dwc(context, output, entryPoint).whenComplete((){
      context.info("completed");
      
    });
  });
}
 
Future<bool> _dwc(TaskContext ctx, String output, String entryPoint){
  final packageDir = new Directory('packages');
  assert(packageDir.existsSync());
  
  final args = ["--package-root=${packageDir.path}/",
                "packages/web_ui/dwc.dart",
                "--out",
                "$output/",
                "$entryPoint"
                ];
  return Process.start("dart", args)
      .then((process) {
        return pipeProcess(process,
            stdOutWriter: ctx.info,
            stdErrWriter: ctx.severe);
      }).then((int exitCode){
        return exitCode==1;
      });

}

//courtesy https://github.com/kevmoo/hop.dart
String _getPlatformBin(String binName) {
  if(Platform.operatingSystem == 'windows') {
    return '${binName}.bat';
  } else {
    return binName;
  }
}