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85f829fb3c
This should solve the main problem of dynamic assets getting stale after a version upgrade. Everything not affected will use query-string based cache busting, which includes files loaded via HTML or worker scripts.
105 lines
3.3 KiB
JavaScript
105 lines
3.3 KiB
JavaScript
// transform /path/to/file.ext to file.ext
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export function basename(path = '') {
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return path ? path.replace(/^.*\//, '') : '';
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}
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// transform /path/to/file.ext to .ext
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export function extname(path = '') {
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const [_, ext] = /.+(\.[^.]+)$/.exec(path) || [];
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return ext || '';
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}
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// join a list of path segments with slashes, ensuring no double slashes
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export function joinPaths(...parts) {
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let str = '';
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for (const part of parts) {
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if (!part) continue;
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str = !str ? part : `${str.replace(/\/$/, '')}/${part.replace(/^\//, '')}`;
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}
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return str;
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}
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// test whether a variable is an object
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export function isObject(obj) {
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return Object.prototype.toString.call(obj) === '[object Object]';
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}
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// returns whether a dark theme is enabled
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export function isDarkTheme() {
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const style = window.getComputedStyle(document.documentElement);
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return style.getPropertyValue('--is-dark-theme').trim().toLowerCase() === 'true';
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}
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// removes duplicate elements in an array
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export function uniq(arr) {
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return Array.from(new Set(arr));
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}
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// strip <tags> from a string
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export function stripTags(text) {
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return text.replace(/<[^>]*>?/gm, '');
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}
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// searches the inclusive range [minValue, maxValue].
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// credits: https://matthiasott.com/notes/write-your-media-queries-in-pixels-not-ems
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export function mqBinarySearch(feature, minValue, maxValue, step, unit) {
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if (maxValue - minValue < step) {
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return minValue;
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}
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const mid = Math.ceil((minValue + maxValue) / 2 / step) * step;
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if (matchMedia(`screen and (min-${feature}:${mid}${unit})`).matches) {
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return mqBinarySearch(feature, mid, maxValue, step, unit); // feature is >= mid
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}
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return mqBinarySearch(feature, minValue, mid - step, step, unit); // feature is < mid
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}
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export function parseIssueHref(href) {
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const path = (href || '').replace(/[#?].*$/, '');
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const [_, owner, repo, type, index] = /([^/]+)\/([^/]+)\/(issues|pulls)\/([0-9]+)/.exec(path) || [];
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return {owner, repo, type, index};
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}
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// return the sub-match result as an array: [unmatched, matched, unmatched, matched, ...]
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// res[even] is unmatched, res[odd] is matched, see unit tests for examples
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export function strSubMatch(full, sub) {
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const res = [''];
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let i = 0, j = 0;
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for (; i < sub.length && j < full.length;) {
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while (j < full.length) {
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if (sub[i] === full[j]) {
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if (res.length % 2 !== 0) res.push('');
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res[res.length - 1] += full[j];
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j++;
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i++;
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} else {
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if (res.length % 2 === 0) res.push('');
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res[res.length - 1] += full[j];
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j++;
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break;
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}
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}
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}
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if (i !== sub.length) {
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// if the sub string doesn't match the full, only return the full as unmatched.
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return [full];
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}
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if (j < full.length) {
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// append remaining chars from full to result as unmatched
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if (res.length % 2 === 0) res.push('');
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res[res.length - 1] += full.substring(j);
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}
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return res;
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}
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// pretty-print a number using locale-specific separators, e.g. 1200 -> 1,200
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export function prettyNumber(num, locale = 'en-US') {
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if (typeof num !== 'number') return '';
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const {format} = new Intl.NumberFormat(locale);
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return format(num);
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}
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// parse a URL, either relative '/path' or absolute 'https://localhost/path'
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export function parseUrl(str) {
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return new URL(str, str.startsWith('http') ? undefined : window.location.origin);
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}
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