Created
February 23, 2015 22:36
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Cordova-App-loader Grunt
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Usage : | |
jsonmanifest: { | |
generate: { | |
options: { | |
basePath: '../www', | |
exclude: [], | |
//load all found assets | |
loadall: true, | |
//manually add files to the manifest | |
files: {}, | |
//manually define the files that should be injected into the page | |
load: [], | |
// root location of files to be loaded in the load array. | |
root: "./", | |
order: [ | |
'*.css', | |
'*.html', | |
'lib/vendor-lib.js' | |
] | |
}, | |
src: [ | |
'app/*.js', | |
'lib/*.js', | |
'css/*.css', | |
'templates/*.html' | |
], | |
dest: ['manifest.json'] | |
} | |
} | |
//Code | |
grunt.registerMultiTask('jsonmanifest', 'Generate JSON Manifest for Hot Updates', function () { | |
var options = this.options({loadall: true, root: "./", files: {}, load: []}); | |
var done = this.async(); | |
var path = require('path'); | |
this.files.forEach(function (file) { | |
var files; | |
//manifest format | |
var json = { | |
"files": options.files, | |
"load": options.load, | |
"root": options.root | |
}; | |
//clear load array if loading all found assets | |
if (options.loadall) { | |
json.load = []; | |
} | |
// check to see if src has been set | |
if (typeof file.src === "undefined") { | |
grunt.fatal('Need to specify which files to include in the json manifest.', 2); | |
} | |
// if a basePath is set, expand using the original file pattern | |
if (options.basePath) { | |
files = grunt.file.expand({cwd: options.basePath}, file.orig.src); | |
} else { | |
files = file.src; | |
} | |
// Exclude files | |
if (options.exclude) { | |
files = files.filter(function (item) { | |
return options.exclude.indexOf(item) === -1; | |
}); | |
} | |
// Set default destination file | |
if (!file.dest) { | |
file.dest = ['manifest.json']; | |
} | |
// add files | |
if (files) { | |
files.forEach(function (item) { | |
var hasher = require('crypto').createHash('sha256'); | |
var filename = encodeURI(item); | |
var key = filename.split("/"); | |
key = key[key.length - 1]; | |
json.files[key] = {} | |
json.files[key]['filename'] = filename; | |
json.files[key]['version'] = hasher.update(grunt.file.read(path.join(options.basePath, item))).digest("hex") | |
if (options.loadall) { | |
json.load.push(filename); | |
} | |
}); | |
//change order due | |
var loadOrdered = []; | |
if (options.order) { | |
grunt.log.writeln('Order items'); | |
options.order.forEach(function (orderItem) { | |
pattern = orderItem.replace('*', '.*').replace(/\./g, '\\.'); | |
var regex = new RegExp(pattern, 'g'); | |
grunt.log.writeln('Sorting ' + orderItem + ' Pattern ' + regex); | |
json.load.forEach(function (loadItem) { | |
grunt.log.writeln('Comparing ' + pattern, ' with ' + loadItem); | |
if (loadItem.match(regex)) { | |
grunt.log.writeln(orderItem, ' matches ', loadItem); | |
loadOrdered.push(loadItem); | |
} | |
}); | |
}); | |
json.load.forEach(function (item) { | |
if (loadOrdered.indexOf(item) <= -1) { | |
loadOrdered.push(item); | |
} | |
}); | |
json.load = loadOrdered; | |
} | |
} | |
//write out the JSON to the manifest files | |
file.dest.forEach(function (f) { | |
grunt.file.write(f, JSON.stringify(json, null, 2)); | |
}); | |
done(); | |
}); | |
}); |
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