source: other-projects/playing-in-the-street/summer-2013/trunk/Playing-in-the-Street-WPF/Content/Web/mrdoob-three.js-4862f5f/utils/npm/build.js@ 28897

/**
 * Builds node_modules three and three-math
 *
 * Expects a single command line argument that is the build version in the format 0.54.4-dev
 *
 * @author bhouston / http://exocortex.com
 */

var fs = require( "fs" );
var cp = require('child_process');

var commandLineArguments = process.argv.splice(2);

var outputRootDir = "./node_modules";
var inputDir = "../../build";
var readmeFileName = "../../README.md";

var headerFileName = "./header.js";
var footerFileName = "./footer.js";

if( commandLineArguments.length == 0 ) {
    throw new Error( "build version must be specified as a command line argument (e.g. 0.54.3-dev)");
}
var buildVersion = commandLineArguments[0];


var concateFiles = function ( inputFileNames, outputFileName ) {
    var buffer = [];
    for ( var i = 0; i < inputFileNames.length; i++ ) {
        buffer.push( 
            fs.readFileSync( inputFileNames[i], 'utf8' )
            );
    }

    var combinedContents = buffer.join("");
    fs.writeFileSync( outputFileName, combinedContents, 'utf8' );   
}

var createTemplatedFile = function ( templateFileName, replaceSet, outputFileName ) {
    var templateContents = fs.readFileSync( templateFileName, 'utf8' );
    for( var token in replaceSet ) {
        templateContents = templateContents.replace( "%"+token+"%", replaceSet[token] );
    }
    fs.writeFileSync( outputFileName, templateContents, 'utf8' );
}

var copyFile = function( sourceFileName, destinationFileName ) {

    var contents = fs.readFileSync( sourceFileName, 'utf8' );
    fs.writeFileSync( destinationFileName, contents, 'utf8' );

}

var buildModule = function ( name, version ) {

    if( ! fs.existsSync( outputRootDir ) ) {
        fs.mkdirSync( outputRootDir );
    }

    var outputModuleDir = outputRootDir + "/" + name;
    if( ! fs.existsSync( outputModuleDir ) ) {
        fs.mkdirSync( outputModuleDir );
    }
    // make directory moduleDir

    var inputRawFileName = inputDir + "/" + name + ".js";
    var outputRawFileName = outputModuleDir + "/" + name + ".js";

    concateFiles( [ headerFileName, inputRawFileName, footerFileName ], outputRawFileName );

    var inputMinifiedFileName = inputDir + "/" + name + ".min.js";
    var outputMinifiedFileName = outputModuleDir + "/" + name + ".min.js";

    concateFiles( [ headerFileName, inputMinifiedFileName, footerFileName ], outputMinifiedFileName );

    var templatePackageFileName = "./" + name + ".package.json";
    var replaceSet = {
        "VERSION": buildVersion
    };
    var outputPackageFileName = outputModuleDir + "/package.json";
    createTemplatedFile( templatePackageFileName, replaceSet, outputPackageFileName );

    var outputReadmeFileName = outputModuleDir + "/README.md";
    copyFile( readmeFileName, outputReadmeFileName );
}

var cmdExe, args;
if (process.platform === 'win32' || process.platform === 'win64') {
    cmdExe = "cmd.exe";
    args = [ "/c", "build_all.bat" ];
} else {
    cmdExe = './build_all.sh';
    args = [];
}
var opts = { "cwd": "../build" };
var buildAll = cp.spawn( cmdExe, args, opts );

buildAll.stdout.on('data', function (data) {
  console.log('stdout: ' + data);
});

buildAll.stderr.on('data', function (data) {
  console.log('stderr: ' + data);
});

buildAll.on( 'exit', function ( exitCode ) {
    console.log( "exitCode: " + exitCode );
    buildModule( "three" );
    buildModule( "three-math" );
});