Initial commit

node_modules/doiuse/lib/doiuse.js

@@ -0,0 +1,86 @@
+'use strict';
+
+var _ = require('lodash');
+var missingSupport = require('./missing-support');
+var Detector = require('./detect-feature-use');
+var Multimatch = require('multimatch');
+
+function doiuse(options) {
+  var browserQuery = options.browsers;
+  var onFeatureUsage = options.onFeatureUsage;
+  var ignoreOptions = options.ignore;
+  var ignoreFiles = options.ignoreFiles;
+
+  if (!browserQuery) {
+    browserQuery = doiuse['default'].slice();
+  }
+
+  var _missingSupport = missingSupport(browserQuery);
+
+  var browsers = _missingSupport.browsers;
+  var features = _missingSupport.features;
+
+  var detector = new Detector(_.keys(features));
+
+  return {
+    info: function info() {
+      return {
+        browsers: browsers,
+        features: features
+      };
+    },
+
+    postcss: function postcss(css, result) {
+      return detector.process(css, function (_ref) {
+        var feature = _ref.feature;
+        var usage = _ref.usage;
+        var ignore = _ref.ignore;
+
+        if (ignore && ignore.indexOf(feature) !== -1) {
+          return;
+        }
+        if (ignoreOptions && ignoreOptions.indexOf(feature) !== -1) {
+          return;
+        }
+
+        if (ignoreFiles && Multimatch(usage.source.input.from, ignoreFiles).length > 0) {
+          return;
+        }
+
+        var messages = [];
+        if (features[feature].missing) {
+          messages.push('not supported by: ' + features[feature].missing);
+        }
+        if (features[feature].partial) {
+          messages.push('only partially supported by: ' + features[feature].partial);
+        }
+
+        var message = features[feature].title + ' ' + messages.join(' and ') + ' (' + feature + ')';
+
+        result.warn(message, { node: usage, plugin: 'doiuse' });
+
+        if (onFeatureUsage) {
+          var loc = usage.source;
+          loc.original = css.source.input.map ? {
+            start: css.source.input.map.consumer().originalPositionFor(loc.start),
+            end: css.source.input.map.consumer().originalPositionFor(loc.end)
+          } : {
+            start: loc.start,
+            end: loc.end
+          };
+
+          message = (loc.original.start.source || loc.input.file || loc.input.from) + ':' + loc.original.start.line + ':' + loc.original.start.column + ': ' + message;
+
+          onFeatureUsage({
+            feature: feature,
+            featureData: features[feature],
+            usage: usage,
+            message: message
+          });
+        }
+      });
+    }
+  };
+}
+doiuse['default'] = ['> 1%', 'last 2 versions', 'Firefox ESR', 'Opera 12.1'];
+module.exports = doiuse;