jarvis-at-skic
9ad62a2ed6
Build and publish Eldorado documentation / build (pull_request) Successful in 29s
39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
import { createHash } from 'node:crypto';
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const SIDECAR_STEM_NAMESPACE = /\.~archify-[0-9a-f]{64}$/iu;
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export function sidecarStemNeedsBounding(stem, suffixes) {
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const fits = (value) => value.length <= 255 && Buffer.byteLength(value, 'utf8') <= 255;
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return !suffixes.every((suffix) => fits(`${stem}${suffix}`));
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}
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export function boundedSidecarStem(stem, suffixes, { force = false, hashDomain } = {}) {
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if (!force && !sidecarStemNeedsBounding(stem, suffixes)
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&& !SIDECAR_STEM_NAMESPACE.test(stem)) return stem;
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const hashInput = hashDomain ? `${hashDomain}\0${stem}` : stem;
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const marker = `.~archify-${createHash('sha256').update(hashInput).digest('hex')}`;
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const codePoints = [...stem];
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while (codePoints.length
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&& sidecarStemNeedsBounding(`${codePoints.join('')}${marker}`, suffixes)) {
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codePoints.pop();
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}
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return `${codePoints.join('')}${marker}`;
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}
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export function sidecarStemFromComponent(component) {
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if (component.endsWith('.html')) {
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return {
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stem: component.slice(0, -'.html'.length),
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options: undefined,
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};
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}
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return {
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stem: component,
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options: { force: true, hashDomain: 'full-component' },
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};
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}
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export function isBoundedSidecarStem(stem) {
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return SIDECAR_STEM_NAMESPACE.test(stem);
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}
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