413 lines
11 KiB
JavaScript
Executable File
413 lines
11 KiB
JavaScript
Executable File
#!/usr/bin/env node
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var Emitter = require('events').EventEmitter,
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forEach = require('async-foreach').forEach,
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Gaze = require('gaze'),
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meow = require('meow'),
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util = require('util'),
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path = require('path'),
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glob = require('glob'),
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sass = require('../lib'),
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render = require('../lib/render'),
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watcher = require('../lib/watcher'),
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stdout = require('stdout-stream'),
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stdin = require('get-stdin'),
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fs = require('fs');
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/**
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* Initialize CLI
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*/
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var cli = meow({
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pkg: '../package.json',
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version: sass.info,
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help: [
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'Usage:',
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' node-sass [options] <input.scss>',
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' cat <input.scss> | node-sass [options] > output.css',
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'',
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'Example: Compile foobar.scss to foobar.css',
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' node-sass --output-style compressed foobar.scss > foobar.css',
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' cat foobar.scss | node-sass --output-style compressed > foobar.css',
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'',
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'Example: Watch the sass directory for changes, compile with sourcemaps to the css directory',
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' node-sass --watch --recursive --output css',
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' --source-map true --source-map-contents sass',
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'',
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'Options',
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' -w, --watch Watch a directory or file',
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' -r, --recursive Recursively watch directories or files',
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' -o, --output Output directory',
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' -x, --omit-source-map-url Omit source map URL comment from output',
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' -i, --indented-syntax Treat data from stdin as sass code (versus scss)',
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' -q, --quiet Suppress log output except on error',
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' -v, --version Prints version info',
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' --output-style CSS output style (nested | expanded | compact | compressed)',
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' --indent-type Indent type for output CSS (space | tab)',
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' --indent-width Indent width; number of spaces or tabs (maximum value: 10)',
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' --linefeed Linefeed style (cr | crlf | lf | lfcr)',
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' --source-comments Include debug info in output',
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' --source-map Emit source map (boolean, or path to output .map file)',
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' --source-map-contents Embed include contents in map',
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' --source-map-embed Embed sourceMappingUrl as data URI',
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' --source-map-root Base path, will be emitted in source-map as is',
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' --include-path Path to look for imported files',
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' --follow Follow symlinked directories',
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' --precision The amount of precision allowed in decimal numbers',
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' --error-bell Output a bell character on errors',
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' --importer Path to .js file containing custom importer',
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' --functions Path to .js file containing custom functions',
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' --help Print usage info'
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].join('\n')
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}, {
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boolean: [
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'error-bell',
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'follow',
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'indented-syntax',
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'omit-source-map-url',
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'quiet',
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'recursive',
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'source-map-embed',
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'source-map-contents',
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'source-comments',
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'watch'
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],
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string: [
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'functions',
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'importer',
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'include-path',
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'indent-type',
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'linefeed',
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'output',
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'output-style',
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'precision',
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'source-map-root'
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],
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alias: {
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c: 'source-comments',
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i: 'indented-syntax',
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q: 'quiet',
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o: 'output',
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r: 'recursive',
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x: 'omit-source-map-url',
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v: 'version',
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w: 'watch'
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},
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default: {
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'include-path': process.cwd(),
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'indent-type': 'space',
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'indent-width': 2,
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linefeed: 'lf',
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'output-style': 'nested',
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precision: 5,
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quiet: false,
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recursive: true
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}
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});
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/**
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* Is a Directory
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*
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* @param {String} filePath
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* @returns {Boolean}
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* @api private
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*/
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function isDirectory(filePath) {
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var isDir = false;
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try {
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var absolutePath = path.resolve(filePath);
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isDir = fs.statSync(absolutePath).isDirectory();
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} catch (e) {
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isDir = e.code === 'ENOENT';
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}
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return isDir;
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}
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/**
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* Get correct glob pattern
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*
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* @param {Object} options
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* @returns {String}
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* @api private
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*/
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function globPattern(options) {
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return options.recursive ? '**/*.{sass,scss}' : '*.{sass,scss}';
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}
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/**
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* Create emitter
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*
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* @api private
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*/
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function getEmitter() {
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var emitter = new Emitter();
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emitter.on('error', function(err) {
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if (options.errorBell) {
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err += '\x07';
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}
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console.error(err);
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if (!options.watch) {
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process.exit(1);
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}
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});
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emitter.on('warn', function(data) {
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if (!options.quiet) {
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console.warn(data);
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}
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});
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emitter.on('info', function(data) {
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if (!options.quiet) {
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console.info(data);
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}
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});
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emitter.on('log', stdout.write.bind(stdout));
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return emitter;
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}
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/**
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* Construct options
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*
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* @param {Array} arguments
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* @param {Object} options
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* @api private
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*/
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function getOptions(args, options) {
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var cssDir, sassDir, file, mapDir;
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options.src = args[0];
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if (args[1]) {
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options.dest = path.resolve(args[1]);
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} else if (options.output) {
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options.dest = path.join(
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path.resolve(options.output),
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[path.basename(options.src, path.extname(options.src)), '.css'].join('')); // replace ext.
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}
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if (options.directory) {
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sassDir = path.resolve(options.directory);
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file = path.relative(sassDir, args[0]);
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cssDir = path.resolve(options.output);
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options.dest = path.join(cssDir, file).replace(path.extname(file), '.css');
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}
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if (options.sourceMap) {
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if(!options.sourceMapOriginal) {
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options.sourceMapOriginal = options.sourceMap;
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}
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// check if sourceMap path ends with .map to avoid isDirectory false-positive
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var sourceMapIsDirectory = options.sourceMapOriginal.indexOf('.map', options.sourceMapOriginal.length - 4) === -1 && isDirectory(options.sourceMapOriginal);
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if (options.sourceMapOriginal === 'true') {
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options.sourceMap = options.dest + '.map';
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} else if (!sourceMapIsDirectory) {
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options.sourceMap = path.resolve(options.sourceMapOriginal);
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} else if (sourceMapIsDirectory) {
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if (!options.directory) {
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options.sourceMap = path.resolve(options.sourceMapOriginal, path.basename(options.dest) + '.map');
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} else {
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sassDir = path.resolve(options.directory);
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file = path.relative(sassDir, args[0]);
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mapDir = path.resolve(options.sourceMapOriginal);
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options.sourceMap = path.join(mapDir, file).replace(path.extname(file), '.css.map');
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}
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}
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}
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return options;
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}
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/**
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* Watch
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*
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* @param {Object} options
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* @param {Object} emitter
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* @api private
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*/
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function watch(options, emitter) {
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var handler = function(files) {
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files.added.forEach(function(file) {
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var watch = gaze.watched();
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Object.keys(watch).forEach(function (dir) {
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if (watch[dir].indexOf(file) !== -1) {
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gaze.add(file);
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}
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});
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});
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files.changed.forEach(function(file) {
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if (path.basename(file)[0] !== '_') {
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renderFile(file, options, emitter);
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}
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});
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files.removed.forEach(function(file) {
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gaze.remove(file);
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});
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};
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var gaze = new Gaze();
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gaze.add(watcher.reset(options));
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gaze.on('error', emitter.emit.bind(emitter, 'error'));
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gaze.on('changed', function(file) {
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handler(watcher.changed(file));
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});
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gaze.on('added', function(file) {
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handler(watcher.added(file));
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});
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gaze.on('deleted', function(file) {
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handler(watcher.removed(file));
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});
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}
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/**
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* Run
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*
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* @param {Object} options
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* @param {Object} emitter
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* @api private
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*/
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function run(options, emitter) {
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if (!Array.isArray(options.includePath)) {
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options.includePath = [options.includePath];
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}
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if (options.directory) {
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if (!options.output) {
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emitter.emit('error', 'An output directory must be specified when compiling a directory');
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}
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if (!isDirectory(options.output)) {
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emitter.emit('error', 'An output directory must be specified when compiling a directory');
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}
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}
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if (options.sourceMapOriginal && options.directory && !isDirectory(options.sourceMapOriginal) && options.sourceMapOriginal !== 'true') {
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emitter.emit('error', 'The --source-map option must be either a boolean or directory when compiling a directory');
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}
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if (options.importer) {
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if ((path.resolve(options.importer) === path.normalize(options.importer).replace(/(.+)([\/|\\])$/, '$1'))) {
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options.importer = require(options.importer);
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} else {
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options.importer = require(path.resolve(options.importer));
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}
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}
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if (options.functions) {
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if ((path.resolve(options.functions) === path.normalize(options.functions).replace(/(.+)([\/|\\])$/, '$1'))) {
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options.functions = require(options.functions);
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} else {
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options.functions = require(path.resolve(options.functions));
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}
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}
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if (options.watch) {
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watch(options, emitter);
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} else if (options.directory) {
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renderDir(options, emitter);
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} else {
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render(options, emitter);
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}
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}
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/**
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* Render a file
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*
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* @param {String} file
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* @param {Object} options
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* @param {Object} emitter
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* @api private
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*/
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function renderFile(file, options, emitter) {
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options = getOptions([path.resolve(file)], options);
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if (options.watch && !options.quiet) {
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emitter.emit('info', util.format('=> changed: %s', file));
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}
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render(options, emitter);
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}
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/**
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* Render all sass files in a directory
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*
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* @param {Object} options
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* @param {Object} emitter
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* @api private
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*/
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function renderDir(options, emitter) {
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var globPath = path.resolve(options.directory, globPattern(options));
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glob(globPath, { ignore: '**/_*', follow: options.follow }, function(err, files) {
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if (err) {
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return emitter.emit('error', util.format('You do not have permission to access this path: %s.', err.path));
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} else if (!files.length) {
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return emitter.emit('error', 'No input file was found.');
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}
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forEach(files, function(subject) {
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emitter.once('done', this.async());
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renderFile(subject, options, emitter);
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}, function(successful, arr) {
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var outputDir = path.join(process.cwd(), options.output);
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if (!options.quiet) {
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emitter.emit('info', util.format('Wrote %s CSS files to %s', arr.length, outputDir));
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}
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process.exit();
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});
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});
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}
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/**
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* Arguments and options
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*/
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var options = getOptions(cli.input, cli.flags);
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var emitter = getEmitter();
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/**
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* Show usage if no arguments are supplied
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*/
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if (!options.src && process.stdin.isTTY) {
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emitter.emit('error', [
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'Provide a Sass file to render',
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'',
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'Example: Compile foobar.scss to foobar.css',
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' node-sass --output-style compressed foobar.scss > foobar.css',
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' cat foobar.scss | node-sass --output-style compressed > foobar.css',
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'',
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'Example: Watch the sass directory for changes, compile with sourcemaps to the css directory',
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' node-sass --watch --recursive --output css',
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' --source-map true --source-map-contents sass',
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].join('\n'));
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}
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/**
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* Apply arguments
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*/
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if (options.src) {
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if (isDirectory(options.src)) {
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options.directory = options.src;
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}
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run(options, emitter);
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} else if (!process.stdin.isTTY) {
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stdin(function(data) {
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options.data = data;
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options.stdin = true;
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run(options, emitter);
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});
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}
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