%PDF-
%PDF-
Mini Shell
Mini Shell
import * as path from 'path';
import fs from './less-node/fs';
import * as os from 'os';
import * as utils from './less/utils';
import * as Constants from './less/constants';
let errno;
let mkdirp;
try {
errno = require('errno');
} catch (err) {
errno = null;
}
import less from './less-node';
const pluginManager = new less.PluginManager(less);
const fileManager = new less.FileManager();
const plugins = [];
const queuePlugins = [];
let args = process.argv.slice(1);
let silent = false;
let verbose = false;
const options = less.options;
options.plugins = plugins;
options.reUsePluginManager = true;
const sourceMapOptions = {};
let continueProcessing = true;
const checkArgFunc = (arg, option) => {
if (!option) {
console.error(`${arg} option requires a parameter`);
continueProcessing = false;
process.exitCode = 1;
return false;
}
return true;
};
const checkBooleanArg = arg => {
const onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg);
if (!onOff) {
console.error(` unable to parse ${arg} as a boolean. use one of on/t/true/y/yes/off/f/false/n/no`);
continueProcessing = false;
process.exitCode = 1;
return false;
}
return Boolean(onOff[2]);
};
const parseVariableOption = (option, variables) => {
const parts = option.split('=', 2);
variables[parts[0]] = parts[1];
};
let sourceMapFileInline = false;
function printUsage() {
less.lesscHelper.printUsage();
pluginManager.Loader.printUsage(plugins);
continueProcessing = false;
}
function render() {
if (!continueProcessing) {
return;
}
let input = args[1];
if (input && input != '-') {
input = path.resolve(process.cwd(), input);
}
let output = args[2];
const outputbase = args[2];
if (output) {
output = path.resolve(process.cwd(), output);
}
if (options.sourceMap) {
sourceMapOptions.sourceMapInputFilename = input;
if (!sourceMapOptions.sourceMapFullFilename) {
if (!output && !sourceMapFileInline) {
console.error('the sourcemap option only has an optional filename if the css filename is given');
console.error('consider adding --source-map-map-inline which embeds the sourcemap into the css');
process.exitCode = 1;
return;
}
// its in the same directory, so always just the basename
if (output) {
sourceMapOptions.sourceMapOutputFilename = path.basename(output);
sourceMapOptions.sourceMapFullFilename = `${output}.map`;
}
// its in the same directory, so always just the basename
if ('sourceMapFullFilename' in sourceMapOptions) {
sourceMapOptions.sourceMapFilename = path.basename(sourceMapOptions.sourceMapFullFilename);
}
} else if (options.sourceMap && !sourceMapFileInline) {
const mapFilename = path.resolve(process.cwd(), sourceMapOptions.sourceMapFullFilename);
const mapDir = path.dirname(mapFilename);
const outputDir = path.dirname(output);
// find the path from the map to the output file
sourceMapOptions.sourceMapOutputFilename = path.join(
path.relative(mapDir, outputDir), path.basename(output));
// make the sourcemap filename point to the sourcemap relative to the css file output directory
sourceMapOptions.sourceMapFilename = path.join(
path.relative(outputDir, mapDir), path.basename(sourceMapOptions.sourceMapFullFilename));
}
}
if (sourceMapOptions.sourceMapBasepath === undefined) {
sourceMapOptions.sourceMapBasepath = input ? path.dirname(input) : process.cwd();
}
if (sourceMapOptions.sourceMapRootpath === undefined) {
const pathToMap = path.dirname((sourceMapFileInline ? output : sourceMapOptions.sourceMapFullFilename) || '.');
const pathToInput = path.dirname(sourceMapOptions.sourceMapInputFilename || '.');
sourceMapOptions.sourceMapRootpath = path.relative(pathToMap, pathToInput);
}
if (!input) {
console.error('lessc: no input files');
console.error('');
printUsage();
process.exitCode = 1;
return;
}
const ensureDirectory = filepath => {
const dir = path.dirname(filepath);
let cmd;
const existsSync = fs.existsSync || path.existsSync;
if (!existsSync(dir)) {
if (mkdirp === undefined) {
try {mkdirp = require('mkdirp');}
catch (e) { mkdirp = null; }
}
cmd = mkdirp && mkdirp.sync || fs.mkdirSync;
cmd(dir);
}
};
if (options.depends) {
if (!outputbase) {
console.error('option --depends requires an output path to be specified');
process.exitCode = 1;
return;
}
process.stdout.write(`${outputbase}: `);
}
if (!sourceMapFileInline) {
var writeSourceMap = (output = '', onDone) => {
const filename = sourceMapOptions.sourceMapFullFilename;
ensureDirectory(filename);
fs.writeFile(filename, output, 'utf8', err => {
if (err) {
let description = 'Error: ';
if (errno && errno.errno[err.errno]) {
description += errno.errno[err.errno].description;
} else {
description += `${err.code} ${err.message}`;
}
console.error(`lessc: failed to create file ${filename}`);
console.error(description);
process.exitCode = 1;
} else {
less.logger.info(`lessc: wrote ${filename}`);
}
onDone();
});
};
}
const writeSourceMapIfNeeded = (output, onDone) => {
if (options.sourceMap && !sourceMapFileInline) {
writeSourceMap(output, onDone);
} else {
onDone();
}
};
const writeOutput = (output, result, onSuccess) => {
if (options.depends) {
onSuccess();
} else if (output) {
ensureDirectory(output);
fs.writeFile(output, result.css, {encoding: 'utf8'}, err => {
if (err) {
let description = 'Error: ';
if (errno && errno.errno[err.errno]) {
description += errno.errno[err.errno].description;
} else {
description += `${err.code} ${err.message}`;
}
console.error(`lessc: failed to create file ${output}`);
console.error(description);
process.exitCode = 1;
} else {
less.logger.info(`lessc: wrote ${output}`);
onSuccess();
}
});
} else if (!options.depends) {
process.stdout.write(result.css);
onSuccess();
}
};
const logDependencies = (options, result) => {
if (options.depends) {
let depends = '';
for (let i = 0; i < result.imports.length; i++) {
depends += `${result.imports[i]} `;
}
console.log(depends);
}
};
const parseLessFile = (e, data) => {
if (e) {
console.error(`lessc: ${e.message}`);
process.exitCode = 1;
return;
}
data = data.replace(/^\uFEFF/, '');
options.paths = [path.dirname(input)].concat(options.paths);
options.filename = input;
if (options.lint) {
options.sourceMap = false;
}
sourceMapOptions.sourceMapFileInline = sourceMapFileInline;
if (options.sourceMap) {
options.sourceMap = sourceMapOptions;
}
less.logger.addListener({
info: function(msg) {
if (verbose) {
console.log(msg);
}
},
warn: function(msg) {
// do not show warning if the silent option is used
if (!silent) {
console.warn(msg);
}
},
error: function(msg) {
console.error(msg);
}
});
less.render(data, options)
.then(result => {
if (!options.lint) {
writeOutput(output, result, () => {
writeSourceMapIfNeeded(result.map, () => {
logDependencies(options, result);
});
});
}
},
err => {
if (!options.silent) {
console.error(err.toString({
stylize: options.color && less.lesscHelper.stylize
}));
}
process.exitCode = 1;
});
};
if (input != '-') {
fs.readFile(input, 'utf8', parseLessFile);
} else {
process.stdin.resume();
process.stdin.setEncoding('utf8');
let buffer = '';
process.stdin.on('data', data => {
buffer += data;
});
process.stdin.on('end', () => {
parseLessFile(false, buffer);
});
}
}
function processPluginQueue() {
let x = 0;
function pluginError(name) {
console.error(`Unable to load plugin ${name} please make sure that it is installed under or at the same level as less`);
process.exitCode = 1;
}
function pluginFinished(plugin) {
x++;
plugins.push(plugin);
if (x === queuePlugins.length) {
render();
}
}
queuePlugins.forEach(queue => {
const context = utils.clone(options);
pluginManager.Loader.loadPlugin(queue.name, process.cwd(), context, less.environment, fileManager)
.then(data => {
pluginFinished({
fileContent: data.contents,
filename: data.filename,
options: queue.options
});
})
.catch(() => {
pluginError(queue.name);
});
});
}
// self executing function so we can return
(() => {
args = args.filter(arg => {
let match;
match = arg.match(/^-I(.+)$/);
if (match) {
options.paths.push(match[1]);
return false;
}
match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i);
if (match) {
arg = match[1];
} else {
return arg;
}
switch (arg) {
case 'v':
case 'version':
console.log(`lessc ${less.version.join('.')} (Less Compiler) [JavaScript]`);
continueProcessing = false;
break;
case 'verbose':
verbose = true;
break;
case 's':
case 'silent':
silent = true;
break;
case 'l':
case 'lint':
options.lint = true;
break;
case 'strict-imports':
options.strictImports = true;
break;
case 'h':
case 'help':
printUsage();
break;
case 'x':
case 'compress':
options.compress = true;
break;
case 'insecure':
options.insecure = true;
break;
case 'M':
case 'depends':
options.depends = true;
break;
case 'max-line-len':
if (checkArgFunc(arg, match[2])) {
options.maxLineLen = parseInt(match[2], 10);
if (options.maxLineLen <= 0) {
options.maxLineLen = -1;
}
}
break;
case 'no-color':
options.color = false;
break;
case 'js':
options.javascriptEnabled = true;
break;
case 'no-js':
console.error('The "--no-js" argument is deprecated, as inline JavaScript ' +
'is disabled by default. Use "--js" to enable inline JavaScript (not recommended).');
break;
case 'include-path':
if (checkArgFunc(arg, match[2])) {
// ; supported on windows.
// : supported on windows and linux, excluding a drive letter like C:\ so C:\file:D:\file parses to 2
options.paths = match[2]
.split(os.type().match(/Windows/) ? /:(?!\\)|;/ : ':')
.map(p => {
if (p) {
return path.resolve(process.cwd(), p);
}
});
}
break;
case 'line-numbers':
if (checkArgFunc(arg, match[2])) {
options.dumpLineNumbers = match[2];
}
break;
case 'source-map':
options.sourceMap = true;
if (match[2]) {
sourceMapOptions.sourceMapFullFilename = match[2];
}
break;
case 'source-map-rootpath':
if (checkArgFunc(arg, match[2])) {
sourceMapOptions.sourceMapRootpath = match[2];
}
break;
case 'source-map-basepath':
if (checkArgFunc(arg, match[2])) {
sourceMapOptions.sourceMapBasepath = match[2];
}
break;
case 'source-map-inline':
case 'source-map-map-inline':
sourceMapFileInline = true;
options.sourceMap = true;
break;
case 'source-map-include-source':
case 'source-map-less-inline':
sourceMapOptions.outputSourceFiles = true;
break;
case 'source-map-url':
if (checkArgFunc(arg, match[2])) {
sourceMapOptions.sourceMapURL = match[2];
}
break;
case 'rp':
case 'rootpath':
if (checkArgFunc(arg, match[2])) {
options.rootpath = match[2].replace(/\\/g, '/');
}
break;
case 'relative-urls':
console.warn('The --relative-urls option has been deprecated. Use --rewrite-urls=all.');
options.rewriteUrls = Constants.RewriteUrls.ALL;
break;
case 'ru':
case 'rewrite-urls':
const m = match[2];
if (m) {
if (m === 'local') {
options.rewriteUrls = Constants.RewriteUrls.LOCAL;
} else if (m === 'off') {
options.rewriteUrls = Constants.RewriteUrls.OFF;
} else if (m === 'all') {
options.rewriteUrls = Constants.RewriteUrls.ALL;
} else {
console.error(`Unknown rewrite-urls argument ${m}`);
continueProcessing = false;
process.exitCode = 1;
}
} else {
options.rewriteUrls = Constants.RewriteUrls.ALL;
}
break;
case 'sm':
case 'strict-math':
console.warn('The --strict-math option has been deprecated. Use --math=strict.');
if (checkArgFunc(arg, match[2])) {
if (checkBooleanArg(match[2])) {
options.math = Constants.Math.STRICT_LEGACY;
}
}
break;
case 'm':
case 'math':
if (checkArgFunc(arg, match[2])) {
options.math = match[2];
}
break;
case 'su':
case 'strict-units':
if (checkArgFunc(arg, match[2])) {
options.strictUnits = checkBooleanArg(match[2]);
}
break;
case 'global-var':
if (checkArgFunc(arg, match[2])) {
if (!options.globalVars) {
options.globalVars = {};
}
parseVariableOption(match[2], options.globalVars);
}
break;
case 'modify-var':
if (checkArgFunc(arg, match[2])) {
if (!options.modifyVars) {
options.modifyVars = {};
}
parseVariableOption(match[2], options.modifyVars);
}
break;
case 'url-args':
if (checkArgFunc(arg, match[2])) {
options.urlArgs = match[2];
}
break;
case 'plugin':
const splitupArg = match[2].match(/^([^=]+)(=(.*))?/);
const name = splitupArg[1];
const pluginOptions = splitupArg[3];
queuePlugins.push({ name, options: pluginOptions });
break;
default:
queuePlugins.push({ name: arg, options: match[2], default: true });
break;
}
});
if (queuePlugins.length > 0) {
processPluginQueue();
}
else {
render();
}
})();
Zerion Mini Shell 1.0