This app provides monitoring and information features for the common freifunk user and the technical stuff of a freifunk community.
Code base is taken from a TUM Practical Course project and added here to see if Freifunk Altdorf can use it.
https://www.freifunk-altdorf.de
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66 lines
1.7 KiB
66 lines
1.7 KiB
6 years ago
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/**
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* @fileoverview Detects unused styles
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* @author Tom Hastjarjanto
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*/
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'use strict';
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const Components = require('../util/Components');
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const styleSheet = require('../util/stylesheet');
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const StyleSheets = styleSheet.StyleSheets;
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const astHelpers = styleSheet.astHelpers;
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module.exports = Components.detect((context, components) => {
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const styleSheets = new StyleSheets();
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const styleReferences = new Set();
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function reportUnusedStyles(unusedStyles) {
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Object.keys(unusedStyles).forEach((key) => {
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if ({}.hasOwnProperty.call(unusedStyles, key)) {
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const styles = unusedStyles[key];
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styles.forEach((node) => {
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const message = [
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'Unused style detected: ',
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key,
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'.',
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node.key.name,
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].join('');
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context.report(node, message);
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});
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}
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});
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}
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return {
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MemberExpression: function (node) {
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const styleRef = astHelpers.getPotentialStyleReferenceFromMemberExpression(node);
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if (styleRef) {
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styleReferences.add(styleRef);
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}
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},
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VariableDeclarator: function (node) {
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if (astHelpers.isStyleSheetDeclaration(node)) {
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const styleSheetName = astHelpers.getStyleSheetName(node);
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const styles = astHelpers.getStyleDeclarations(node);
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styleSheets.add(styleSheetName, styles);
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}
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},
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'Program:exit': function () {
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const list = components.all();
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if (Object.keys(list).length > 0) {
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styleReferences.forEach((reference) => {
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styleSheets.markAsUsed(reference);
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});
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reportUnusedStyles(styleSheets.getUnusedReferences());
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}
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},
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};
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});
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module.exports.schema = [];
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