Current Dev State

static/js/ketcher2/node_modules/gulp-less/index.js

@@ -0,0 +1,61 @@
+var path           = require('path');
+var accord         = require('accord');
+var through2       = require('through2');
+var gutil          = require('gulp-util');
+var assign         = require('object-assign');
+var applySourceMap = require('vinyl-sourcemaps-apply');
+
+var PluginError    = gutil.PluginError;
+var less           = accord.load('less');
+
+module.exports = function (options) {
+  // Mixes in default options.
+  var opts = assign({}, {
+      compress: false,
+      paths: []
+    }, options);
+
+  return through2.obj(function(file, enc, cb) {
+    if (file.isNull()) {
+      return cb(null, file);
+    }
+
+    if (file.isStream()) {
+      return cb(new PluginError('gulp-less', 'Streaming not supported'));
+    }
+
+    var str = file.contents.toString();
+
+    // Injects the path of the current file
+    opts.filename = file.path;
+
+    // Bootstrap source maps
+    if (file.sourceMap) {
+      opts.sourcemap = true;
+    }
+
+    less.render(str, opts).then(function(res) {
+      file.contents = new Buffer(res.result);
+      file.path = gutil.replaceExtension(file.path, '.css');
+      if (res.sourcemap) {
+        res.sourcemap.file = file.relative;
+        res.sourcemap.sources = res.sourcemap.sources.map(function (source) {
+          return path.relative(file.base, source);
+        });
+
+        applySourceMap(file, res.sourcemap);
+      }
+      return file;
+    }).then(function(file) {
+      cb(null, file);
+    }).catch(function(err) {
+      // Convert the keys so PluginError can read them
+      err.lineNumber = err.line;
+      err.fileName = err.filename;
+
+      // Add a better error message
+      err.message = err.message + ' in file ' + err.fileName + ' line no. ' + err.lineNumber;
+      return cb(new PluginError('gulp-less', err));
+    });
+  });
+};