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5da34c7efd
* Add linter to check svg path dimensions Float precision is set at 3 which is the default for svgo in .svgo.yml; precision can be raised over time. This adds an ignore file with the current paths of non-conforming icons. This also changes the name of the icon title linter as well so it reads more nicely than "custom". * Update CONTRIBUTING GUIDELINES Add a note on visual imperfections and viewbox problems due to optimizing. Co-authored-by: Eric Cornelisesn <ericornelissen@gmail.com> Co-authored-by: Peter Noble <PeterShaggyNoble@users.noreply.github.com>
76 lines
2.8 KiB
JavaScript
76 lines
2.8 KiB
JavaScript
const data = require("./_data/simple-icons.json");
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const { htmlFriendlyToTitle } = require("./scripts/utils.js");
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const getBounds = require("svg-path-bounding-box");
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const titleRegexp = /(.+) icon$/;
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const iconSize = 24;
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const iconFloatPrecision = 3;
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const iconIgnored = require("./.svglint-ignored.json");
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module.exports = {
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rules: {
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elm: {
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"svg": 1,
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"svg > title": 1,
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"svg > path": 1,
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"*": false,
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},
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attr: [
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{ // ensure that the SVG elm has the appropriate attrs
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"role": "img",
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"viewBox": `0 0 ${iconSize} ${iconSize}`,
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"xmlns": "http://www.w3.org/2000/svg",
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"rule::selector": "svg",
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"rule::whitelist": true,
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},
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{ // ensure that the title elm has the appropriate attr
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"rule::selector": "svg > title",
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"rule::whitelist": true,
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},
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{ // ensure that the path element only has the 'd' attr (no style, opacity, etc.)
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"d": /^[,a-zA-Z0-9\. -]+$/,
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"rule::selector": "svg > path",
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"rule::whitelist": true,
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}
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],
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custom: [
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function(reporter, $, ast) {
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reporter.name = "icon-title";
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const iconTitleText = $.find("title").text();
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if (!titleRegexp.test(iconTitleText)) {
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reporter.error("<title> should follow the format \"[ICON_NAME] icon\"");
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} else {
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const titleMatch = iconTitleText.match(titleRegexp);
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// titleMatch = [ "[ICON_NAME] icon", "[ICON_NAME]" ]
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const rawIconName = titleMatch[1];
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const iconName = htmlFriendlyToTitle(rawIconName);
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const icon = data.icons.find(icon => icon.title === iconName);
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if (icon === undefined) {
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reporter.error(`No icon with title "${iconName}" found in simple-icons.json`);
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}
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}
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},
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function(reporter, $, ast) {
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reporter.name = "icon-size";
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const iconPath = $.find("path").attr("d");
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if (iconIgnored.hasOwnProperty(iconPath)) {
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return;
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}
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const bounds = getBounds(iconPath);
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const width = +bounds.width.toFixed(iconFloatPrecision);
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const height = +bounds.height.toFixed(iconFloatPrecision);
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if (width === 0 && height === 0) {
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reporter.error("Path bounds were reported as 0 x 0; check if the path is valid");
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} else if (width !== iconSize && height !== iconSize) {
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reporter.error(`Size of <path> must be exactly ${iconSize} in one dimension; the size is currently ${width} x ${height}`);
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}
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},
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]
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}
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};
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