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/*global module:false*/
module.exports = function(grunt) {
var _ = grunt.util._;
// Project configuration
grunt.initConfig({
// Metadata
pkg: grunt.file.readJSON('package.json'),
fragments: './build/fragments/',
banner: '/*!\n' +
' * Knockout JavaScript library v<%= pkg.version %>\n' +
' * (c) The Knockout.js team - <%= pkg.homepage %>\n' +
' * License: <%= pkg.licenses[0].type %> (<%= pkg.licenses[0].url %>)\n' +
' */\n\n',
checktrailingspaces: {
main: {
src: [
"**/*.{js,html,css,bat,ps1,sh}",
"!build/output/**",
"!node_modules/**"
],
filter: 'isFile'
}
},
build: {
debug: './build/output/knockout-latest.debug.js',
min: './build/output/knockout-latest.js'
},
dist: {
debug: './dist/knockout.debug.js',
min: './dist/knockout.js'
},
test: {
phantomjs: 'spec/runner.phantom.js',
node: 'spec/runner.node.js'
},
testtypes: {
global: "spec/types/global",
module: "spec/types/module"
}
});
grunt.registerTask('clean', 'Clean up output files.', function (target) {
var output = grunt.config('build');
var files = [ output.debug, output.min ];
var options = { force: (target == 'force') };
_.forEach(files, function (file) {
if (grunt.file.exists(file))
grunt.file.delete(file, options);
});
return !this.errorCount;
});
var trailingSpaceRegex = /[ ]$/;
grunt.registerMultiTask('checktrailingspaces', 'checktrailingspaces', function() {
var matches = [];
this.files[0].src.forEach(function(filepath) {
var content = grunt.file.read(filepath),
lines = content.split(/\r*\n/);
lines.forEach(function(line, index) {
if (trailingSpaceRegex.test(line)) {
matches.push([filepath, (index+1), line].join(':'));
}
});
});
if (matches.length) {
grunt.log.error("The following files have trailing spaces that need to be cleaned up:");
grunt.log.writeln(matches.join('\n'));
return false;
}
});
function getReferencedSources(sourceReferencesFilename) {
// Returns the array of filenames referenced by a file like source-references.js
var result;
global.knockoutDebugCallback = function(sources) { result = sources; };
eval(grunt.file.read(sourceReferencesFilename));
return result;
}
function getCombinedSources() {
var fragments = grunt.config('fragments'),
sourceFilenames = [
fragments + 'extern-pre.js',
fragments + 'amd-pre.js',
getReferencedSources(fragments + 'source-references.js'),
fragments + 'amd-post.js',
fragments + 'extern-post.js'
],
flattenedSourceFilenames = Array.prototype.concat.apply([], sourceFilenames),
combinedSources = flattenedSourceFilenames.map(function(filename) {
return grunt.file.read('./' + filename);
}).join('');
return combinedSources.replace('##VERSION##', grunt.config('pkg.version'));
}
function buildDebug(output) {
var source = [];
source.push(grunt.config('banner'));
source.push('(function(){\n');
source.push('var DEBUG=true;\n');
source.push(getCombinedSources());
source.push('})();\n');
grunt.file.write(output, source.join('').replace(/\r\n/g, '\n'));
}
function buildMin(output, done) {
var cc = require('closure-compiler');
var options = {
compilation_level: 'ADVANCED_OPTIMIZATIONS',
output_wrapper: '(function() {%output%})();'
};
grunt.log.write('Compiling...');
cc.compile('/**@const*/var DEBUG=false;' + getCombinedSources(), options, function (err, stdout, stderr) {
if (err) {
grunt.log.error(err);
done(false);
} else {
grunt.log.ok();
grunt.file.write(output, (grunt.config('banner') + stdout).replace(/\r\n/g, '\n'));
done(true);
}
});
}
grunt.registerMultiTask('build', 'Build', function() {
if (!this.errorCount) {
var output = this.data;
if (this.target === 'debug') {
buildDebug(output);
} else if (this.target === 'min') {
buildMin(output, this.async());
}
}
return !this.errorCount;
});
grunt.registerMultiTask('test', 'Run tests', function () {
var done = this.async();
grunt.util.spawn({ cmd: this.target, args: [this.data] },
function (error, result, code) {
if (code === 127 /*not found*/) {
grunt.verbose.error(result.stderr);
// ignore this error
done(true);
} else {
grunt.log.writeln(result.stdout);
if (error)
grunt.log.error(result.stderr);
done(!error);
}
}
);
});
grunt.registerMultiTask('testtypes', 'Run types tests', function () {
var done = this.async(),
target = this.target;
grunt.util.spawn({ cmd: "tsc", args: ["-p", this.data] },
function (error, result, code) {
grunt.log.writeln(result.stdout);
if (error)
grunt.log.error(result.stderr);
else
grunt.log.ok("Knockout TypeScript " + target + " types validated!");
done(!error);
}
);
});
grunt.registerTask('dist', function() {
var version = grunt.config('pkg.version'),
buildConfig = grunt.config('build'),
distConfig = grunt.config('dist');
grunt.file.copy(buildConfig.debug, distConfig.debug);
grunt.file.copy(buildConfig.min, distConfig.min);
console.log('To publish, run:');
console.log(' git add bower.json');
console.log(' git add -f ' + distConfig.debug);
console.log(' git add -f ' + distConfig.min);
console.log(' git checkout head');
console.log(' git commit -m \'Version ' + version + ' for distribution\'');
console.log(' git tag -a v' + version + ' -m \'Add tag v' + version + '\'');
console.log(' git checkout master');
console.log(' git push origin --tags');
});
// Default task.
grunt.registerTask('default', ['clean', 'checktrailingspaces', 'build', 'test', 'testtypes']);
};