www.aleph1.co.uk Git - yaffs-website/blob - node_modules/node-sass/lib/render.js

   1 /*!
   2  * node-sass: lib/render.js
   3  */
   4
   5 var chalk = require('chalk'),
   6   fs = require('fs'),
   7   mkdirp = require('mkdirp'),
   8   path = require('path'),
   9   sass = require('./');
  10
  11 /**
  12  * Render
  13  *
  14  * @param {Object} options
  15  * @param {Object} emitter
  16  * @api public
  17  */
  18
  19 module.exports = function(options, emitter) {
  20   var renderOptions = {
  21     includePaths: options.includePath,
  22     omitSourceMapUrl: options.omitSourceMapUrl,
  23     indentedSyntax: options.indentedSyntax,
  24     outFile: options.dest,
  25     outputStyle: options.outputStyle,
  26     precision: options.precision,
  27     sourceComments: options.sourceComments,
  28     sourceMapEmbed: options.sourceMapEmbed,
  29     sourceMapContents: options.sourceMapContents,
  30     sourceMap: options.sourceMap,
  31     sourceMapRoot: options.sourceMapRoot,
  32     importer: options.importer,
  33     functions: options.functions,
  34     indentWidth: options.indentWidth,
  35     indentType: options.indentType,
  36     linefeed: options.linefeed
  37   };
  38
  39   if (options.data) {
  40     renderOptions.data = options.data;
  41   } else if (options.src) {
  42     renderOptions.file = options.src;
  43   }
  44
  45   var sourceMap = options.sourceMap;
  46   var destination = options.dest;
  47   var stdin = options.stdin;
  48
  49   var success = function(result) {
  50     var todo = 1;
  51     var done = function() {
  52       if (--todo <= 0) {
  53         emitter.emit('done');
  54       }
  55     };
  56
  57     if (!destination || stdin) {
  58       emitter.emit('log', result.css.toString());
  59
  60       if (sourceMap && !options.sourceMapEmbed) {
  61         emitter.emit('log', result.map.toString());
  62       }
  63
  64       return done();
  65     }
  66
  67     emitter.emit('warn', chalk.green('Rendering Complete, saving .css file...'));
  68
  69     mkdirp(path.dirname(destination), function(err) {
  70       if (err) {
  71         return emitter.emit('error', chalk.red(err));
  72       }
  73
  74       fs.writeFile(destination, result.css.toString(), function(err) {
  75         if (err) {
  76           return emitter.emit('error', chalk.red(err));
  77         }
  78
  79         emitter.emit('warn', chalk.green('Wrote CSS to ' + destination));
  80         emitter.emit('write', err, destination, result.css.toString());
  81         done();
  82       });
  83     });
  84
  85     if (sourceMap) {
  86       todo++;
  87
  88       mkdirp(path.dirname(sourceMap), function(err) {
  89         if (err) {
  90           return emitter.emit('error', chalk.red(err));
  91         }
  92         fs.writeFile(sourceMap, result.map, function(err) {
  93           if (err) {
  94             return emitter.emit('error', chalk.red('Error' + err));
  95           }
  96
  97           emitter.emit('warn', chalk.green('Wrote Source Map to ' + sourceMap));
  98           emitter.emit('write-source-map', err, sourceMap, result.map);
  99           done();
 100         });
 101       });
 102     }
 103
 104     emitter.emit('render', result.css.toString());
 105   };
 106
 107   var error = function(error) {
 108     emitter.emit('error', chalk.red(JSON.stringify(error, null, 2)));
 109   };
 110
 111   var renderCallback = function(err, result) {
 112     if (err) {
 113       error(err);
 114     }
 115     else {
 116       success(result);
 117     }
 118   };
 119
 120   sass.render(renderOptions, renderCallback);
 121 };