539 lines
18 KiB
Java
539 lines
18 KiB
Java
import * as path from 'path';
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import fs from './less-node/fs';
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import * as os from 'os';
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import * as utils from './less/utils';
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import * as Constants from './less/constants';
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let errno;
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let mkdirp;
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try {
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errno = require('errno');
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} catch (err) {
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errno = null;
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}
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import less from './less-node';
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const pluginManager = new less.PluginManager(less);
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const fileManager = new less.FileManager();
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const plugins = [];
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const queuePlugins = [];
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let args = process.argv.slice(1);
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let silent = false;
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let verbose = false;
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const options = less.options;
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options.plugins = plugins;
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options.reUsePluginManager = true;
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const sourceMapOptions = {};
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let continueProcessing = true;
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const checkArgFunc = (arg, option) => {
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if (!option) {
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console.error(`${arg} option requires a parameter`);
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continueProcessing = false;
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process.exitCode = 1;
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return false;
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}
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return true;
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};
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const checkBooleanArg = arg => {
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const onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg);
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if (!onOff) {
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console.error(` unable to parse ${arg} as a boolean. use one of on/t/true/y/yes/off/f/false/n/no`);
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continueProcessing = false;
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process.exitCode = 1;
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return false;
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}
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return Boolean(onOff[2]);
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};
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const parseVariableOption = (option, variables) => {
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const parts = option.split('=', 2);
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variables[parts[0]] = parts[1];
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};
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let sourceMapFileInline = false;
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function printUsage() {
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less.lesscHelper.printUsage();
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pluginManager.Loader.printUsage(plugins);
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continueProcessing = false;
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}
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function render() {
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if (!continueProcessing) {
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return;
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}
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let input = args[1];
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if (input && input != '-') {
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input = path.resolve(process.cwd(), input);
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}
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let output = args[2];
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const outputbase = args[2];
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if (output) {
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output = path.resolve(process.cwd(), output);
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}
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if (options.sourceMap) {
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sourceMapOptions.sourceMapInputFilename = input;
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if (!sourceMapOptions.sourceMapFullFilename) {
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if (!output && !sourceMapFileInline) {
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console.error('the sourcemap option only has an optional filename if the css filename is given');
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console.error('consider adding --source-map-map-inline which embeds the sourcemap into the css');
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process.exitCode = 1;
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return;
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}
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// its in the same directory, so always just the basename
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if (output) {
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sourceMapOptions.sourceMapOutputFilename = path.basename(output);
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sourceMapOptions.sourceMapFullFilename = `${output}.map`;
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}
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// its in the same directory, so always just the basename
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if ('sourceMapFullFilename' in sourceMapOptions) {
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sourceMapOptions.sourceMapFilename = path.basename(sourceMapOptions.sourceMapFullFilename);
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}
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} else if (options.sourceMap && !sourceMapFileInline) {
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const mapFilename = path.resolve(process.cwd(), sourceMapOptions.sourceMapFullFilename);
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const mapDir = path.dirname(mapFilename);
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const outputDir = path.dirname(output);
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// find the path from the map to the output file
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sourceMapOptions.sourceMapOutputFilename = path.join(
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path.relative(mapDir, outputDir), path.basename(output));
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// make the sourcemap filename point to the sourcemap relative to the css file output directory
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sourceMapOptions.sourceMapFilename = path.join(
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path.relative(outputDir, mapDir), path.basename(sourceMapOptions.sourceMapFullFilename));
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}
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}
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if (sourceMapOptions.sourceMapBasepath === undefined) {
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sourceMapOptions.sourceMapBasepath = input ? path.dirname(input) : process.cwd();
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}
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if (sourceMapOptions.sourceMapRootpath === undefined) {
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const pathToMap = path.dirname((sourceMapFileInline ? output : sourceMapOptions.sourceMapFullFilename) || '.');
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const pathToInput = path.dirname(sourceMapOptions.sourceMapInputFilename || '.');
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sourceMapOptions.sourceMapRootpath = path.relative(pathToMap, pathToInput);
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}
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if (!input) {
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console.error('lessc: no input files');
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console.error('');
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printUsage();
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process.exitCode = 1;
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return;
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}
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const ensureDirectory = filepath => {
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const dir = path.dirname(filepath);
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let cmd;
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const existsSync = fs.existsSync || path.existsSync;
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if (!existsSync(dir)) {
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if (mkdirp === undefined) {
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try {mkdirp = require('make-dir');}
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catch (e) { mkdirp = null; }
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}
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cmd = mkdirp && mkdirp.sync || fs.mkdirSync;
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cmd(dir);
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}
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};
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if (options.depends) {
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if (!outputbase) {
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console.error('option --depends requires an output path to be specified');
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process.exitCode = 1;
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return;
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}
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process.stdout.write(`${outputbase}: `);
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}
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if (!sourceMapFileInline) {
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var writeSourceMap = (output = '', onDone) => {
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const filename = sourceMapOptions.sourceMapFullFilename;
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ensureDirectory(filename);
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fs.writeFile(filename, output, 'utf8', err => {
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if (err) {
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let description = 'Error: ';
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if (errno && errno.errno[err.errno]) {
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description += errno.errno[err.errno].description;
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} else {
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description += `${err.code} ${err.message}`;
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}
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console.error(`lessc: failed to create file ${filename}`);
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console.error(description);
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process.exitCode = 1;
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} else {
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less.logger.info(`lessc: wrote ${filename}`);
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}
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onDone();
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});
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};
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}
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const writeSourceMapIfNeeded = (output, onDone) => {
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if (options.sourceMap && !sourceMapFileInline) {
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writeSourceMap(output, onDone);
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} else {
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onDone();
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}
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};
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const writeOutput = (output, result, onSuccess) => {
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if (options.depends) {
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onSuccess();
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} else if (output) {
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ensureDirectory(output);
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fs.writeFile(output, result.css, {encoding: 'utf8'}, err => {
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if (err) {
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let description = 'Error: ';
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if (errno && errno.errno[err.errno]) {
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description += errno.errno[err.errno].description;
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} else {
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description += `${err.code} ${err.message}`;
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}
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console.error(`lessc: failed to create file ${output}`);
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console.error(description);
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process.exitCode = 1;
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} else {
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less.logger.info(`lessc: wrote ${output}`);
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onSuccess();
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}
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});
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} else if (!options.depends) {
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process.stdout.write(result.css);
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onSuccess();
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}
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};
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const logDependencies = (options, result) => {
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if (options.depends) {
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let depends = '';
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for (let i = 0; i < result.imports.length; i++) {
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depends += `${result.imports[i]} `;
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}
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console.log(depends);
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}
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};
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const parseLessFile = (e, data) => {
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if (e) {
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console.error(`lessc: ${e.message}`);
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process.exitCode = 1;
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return;
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}
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data = data.replace(/^\uFEFF/, '');
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options.paths = [path.dirname(input)].concat(options.paths);
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options.filename = input;
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if (options.lint) {
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options.sourceMap = false;
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}
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sourceMapOptions.sourceMapFileInline = sourceMapFileInline;
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if (options.sourceMap) {
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options.sourceMap = sourceMapOptions;
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}
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less.logger.addListener({
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info: function(msg) {
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if (verbose) {
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console.log(msg);
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}
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},
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warn: function(msg) {
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// do not show warning if the silent option is used
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if (!silent) {
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console.warn(msg);
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}
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},
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error: function(msg) {
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console.error(msg);
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}
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});
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less.render(data, options)
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.then(result => {
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if (!options.lint) {
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writeOutput(output, result, () => {
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writeSourceMapIfNeeded(result.map, () => {
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logDependencies(options, result);
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});
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});
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}
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},
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err => {
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if (!options.silent) {
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console.error(err.toString({
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stylize: options.color && less.lesscHelper.stylize
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}));
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}
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process.exitCode = 1;
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});
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};
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if (input != '-') {
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fs.readFile(input, 'utf8', parseLessFile);
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} else {
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process.stdin.resume();
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process.stdin.setEncoding('utf8');
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let buffer = '';
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process.stdin.on('data', data => {
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buffer += data;
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});
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process.stdin.on('end', () => {
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parseLessFile(false, buffer);
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});
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}
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}
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function processPluginQueue() {
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let x = 0;
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function pluginError(name) {
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console.error(`Unable to load plugin ${name} please make sure that it is installed under or at the same level as less`);
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process.exitCode = 1;
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}
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function pluginFinished(plugin) {
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x++;
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plugins.push(plugin);
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if (x === queuePlugins.length) {
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render();
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}
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}
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queuePlugins.forEach(queue => {
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const context = utils.clone(options);
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pluginManager.Loader.loadPlugin(queue.name, process.cwd(), context, less.environment, fileManager)
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.then(data => {
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pluginFinished({
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fileContent: data.contents,
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filename: data.filename,
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options: queue.options
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});
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})
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.catch(() => {
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pluginError(queue.name);
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});
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});
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}
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// self executing function so we can return
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(() => {
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args = args.filter(arg => {
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let match;
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match = arg.match(/^-I(.+)$/);
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if (match) {
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options.paths.push(match[1]);
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return false;
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}
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match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i);
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if (match) {
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arg = match[1];
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} else {
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return arg;
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}
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switch (arg) {
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case 'v':
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case 'version':
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console.log(`lessc ${less.version.join('.')} (Less Compiler) [JavaScript]`);
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continueProcessing = false;
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break;
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case 'verbose':
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verbose = true;
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break;
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case 's':
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case 'silent':
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silent = true;
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break;
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case 'l':
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case 'lint':
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options.lint = true;
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break;
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case 'strict-imports':
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options.strictImports = true;
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break;
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case 'h':
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case 'help':
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printUsage();
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break;
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case 'x':
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case 'compress':
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options.compress = true;
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break;
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case 'insecure':
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options.insecure = true;
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break;
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case 'M':
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case 'depends':
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options.depends = true;
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break;
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case 'max-line-len':
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if (checkArgFunc(arg, match[2])) {
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options.maxLineLen = parseInt(match[2], 10);
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if (options.maxLineLen <= 0) {
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options.maxLineLen = -1;
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}
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}
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break;
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case 'no-color':
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options.color = false;
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break;
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case 'js':
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options.javascriptEnabled = true;
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break;
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case 'no-js':
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console.error('The "--no-js" argument is deprecated, as inline JavaScript ' +
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'is disabled by default. Use "--js" to enable inline JavaScript (not recommended).');
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break;
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case 'include-path':
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if (checkArgFunc(arg, match[2])) {
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// ; supported on windows.
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// : supported on windows and linux, excluding a drive letter like C:\ so C:\file:D:\file parses to 2
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options.paths = match[2]
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.split(os.type().match(/Windows/) ? /:(?!\\)|;/ : ':')
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.map(p => {
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if (p) {
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return path.resolve(process.cwd(), p);
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}
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});
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}
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break;
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case 'line-numbers':
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if (checkArgFunc(arg, match[2])) {
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options.dumpLineNumbers = match[2];
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}
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break;
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case 'source-map':
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options.sourceMap = true;
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if (match[2]) {
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sourceMapOptions.sourceMapFullFilename = match[2];
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}
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break;
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case 'source-map-rootpath':
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if (checkArgFunc(arg, match[2])) {
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sourceMapOptions.sourceMapRootpath = match[2];
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}
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break;
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case 'source-map-basepath':
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if (checkArgFunc(arg, match[2])) {
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sourceMapOptions.sourceMapBasepath = match[2];
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}
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break;
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case 'source-map-inline':
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case 'source-map-map-inline':
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sourceMapFileInline = true;
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options.sourceMap = true;
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break;
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case 'source-map-include-source':
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case 'source-map-less-inline':
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sourceMapOptions.outputSourceFiles = true;
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break;
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case 'source-map-url':
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if (checkArgFunc(arg, match[2])) {
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sourceMapOptions.sourceMapURL = match[2];
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}
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break;
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case 'rp':
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case 'rootpath':
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if (checkArgFunc(arg, match[2])) {
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options.rootpath = match[2].replace(/\\/g, '/');
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}
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break;
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case 'relative-urls':
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console.warn('The --relative-urls option has been deprecated. Use --rewrite-urls=all.');
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options.rewriteUrls = Constants.RewriteUrls.ALL;
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break;
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case 'ru':
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case 'rewrite-urls':
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const m = match[2];
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if (m) {
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if (m === 'local') {
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options.rewriteUrls = Constants.RewriteUrls.LOCAL;
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} else if (m === 'off') {
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options.rewriteUrls = Constants.RewriteUrls.OFF;
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} else if (m === 'all') {
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options.rewriteUrls = Constants.RewriteUrls.ALL;
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} else {
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console.error(`Unknown rewrite-urls argument ${m}`);
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continueProcessing = false;
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process.exitCode = 1;
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}
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} else {
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options.rewriteUrls = Constants.RewriteUrls.ALL;
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}
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break;
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case 'sm':
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case 'strict-math':
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console.warn('The --strict-math option has been deprecated. Use --math=strict.');
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if (checkArgFunc(arg, match[2])) {
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if (checkBooleanArg(match[2])) {
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options.math = Constants.Math.STRICT_LEGACY;
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}
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}
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break;
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case 'm':
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case 'math':
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if (checkArgFunc(arg, match[2])) {
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options.math = match[2];
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}
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break;
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case 'su':
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case 'strict-units':
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if (checkArgFunc(arg, match[2])) {
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options.strictUnits = checkBooleanArg(match[2]);
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}
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break;
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case 'global-var':
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if (checkArgFunc(arg, match[2])) {
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if (!options.globalVars) {
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options.globalVars = {};
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}
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parseVariableOption(match[2], options.globalVars);
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}
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break;
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case 'modify-var':
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if (checkArgFunc(arg, match[2])) {
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if (!options.modifyVars) {
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options.modifyVars = {};
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}
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parseVariableOption(match[2], options.modifyVars);
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}
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break;
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case 'url-args':
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if (checkArgFunc(arg, match[2])) {
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options.urlArgs = match[2];
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}
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break;
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case 'plugin':
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const splitupArg = match[2].match(/^([^=]+)(=(.*))?/);
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const name = splitupArg[1];
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const pluginOptions = splitupArg[3];
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queuePlugins.push({ name, options: pluginOptions });
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break;
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default:
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queuePlugins.push({ name: arg, options: match[2], default: true });
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break;
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}
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});
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if (queuePlugins.length > 0) {
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processPluginQueue();
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}
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else {
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render();
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}
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})();
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