@busy-web/deploy/lib/helpers/version.js

busy-web ember-cli-deploy addon.

/**
 * @module Helpers
 *
 */
var fs = require('fs');

/**
 * `version helper methods`
 *
 */
module.exports = {
	_package: null,
	package: null,
	vf: null,

	getVersion: function(update) {
		update = update === true ? true : false;

		if ((update === true) || (!this.vf && !this.package)) {
			var vf = (fs.readFileSync('./public/version.json')).toString();
			this.vf = JSON.parse(vf);

			this._package = (fs.readFileSync('./package.json')).toString();
			this.package = JSON.parse(this._package);

			if (!this.vf || !this.vf.version) {
				this.vf = this.package;
			}
		}
		return this.vf.version;
	},

	setVersion: function(version, updatePackage) {
		updatePackage = updatePackage === true ? true : false;
		this.getVersion();
		if (version !== this.vf.version && this.isValid(version)) {
			saveVF(this, version);
			if (updatePackage === true) {
				savePKG(this, version);
			}
		}
	},

	syncVersion: function() {
		this.getVersion();
		saveVF(this, this.package.version);
	},

	getBuild: function() {
		this.getVersion();
		var parts = this.vf.version.split('.')[2];
		if (parts) {
			parts = parts.split('-')[1];
			if (parts) {
				return parts;
			} else {
				return 'production';
			}
		}
		return false;
	},

	setBuild: function(type) {
		this.getVersion();
		var parts = this.vf.version.split('.');
		if (type === 'production' || type === 'prod') {
			parts = [parts[0], parts[1], 0];
		} else {
			var build = [0, type];
			parts[2] = build.join('-');
			parts[3] = 0;
		}
		return parts.join('.');
	},

	patch: function() {
		return this.incrementVersion();
	},

	minor: function() {
		return this.incrementVersion(1);
	},

	major: function() {
		return this.incrementVersion(0);
	},

	incrementVersion(index) {
		this.getVersion();
		if (this.isValid(this.vf.version)) {
			var parts = this.vf.version.split('.');
			index = index !== undefined ? index : parts.length-1;
			for (var i=index; i<parts.length; i++) {
				var nums = parts[i].split('-');
				nums[0] = (i === index ? Number(nums[0]) + 1 : 0);
				parts[i] = nums.join('-');
			}
			return parts.join('.');
		}
		return false;
	},

	isValid(version) {
		if (version !== null || version !== undefined) {
			if (/\d+\.\d+/.test(version)) {
				return true;
			}
		}
		return false;
	},

	isMatch(version) {
		this.getVersion();
		var parts = this.vf.version.split('.');
		var testParts = version.split('.');
		return testParts[0] === parts[0] && testParts[1] === parts[1];
	},

	isProduction(version) {
		this.getVersion();
		var parts = this.vf.version.split('.');
		var testParts = version.split('.');
		return testParts[0] === 'v' + parts[0] && testParts[1] === parts[1];
	},
};

function saveVF(target, version) {
	var buildDate = (new Date()).toUTCString();
	var buildTime = Date.now()/1000;
	buildTime = buildTime - buildTime%1;

	target.vf = { version, buildDate, buildTime };
	fs.writeFileSync('./public/version.json', JSON.stringify(target.vf));
}

function savePKG(target, version) {
	var oldVersion = target.package.version;
	target.package.version = version;
	target._package = target._package.replace('"version": "' + oldVersion + '"', '"version": "' + version + '"');
	fs.writeFileSync('./package.json', target._package);
}