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tailwind jekyll
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252#!/usr/bin/env node// Post-build class minifier - updates BOTH HTML classes AND inline CSS
const fs = require('fs');const path = require('path');
const classMap = {};const varMap = {}; // CSS variable minification maplet idx = 0;let varIdx = 0;
function shouldSkip(c) { // Icons if (c.includes('fa-') || c.includes('icon-fa')) return true; if (c.startsWith('not-')) return true;
return false;}
function getVarShortName(num) { // Map to --a, --b, --c, ... --z, --aa, --ab, etc. if (num < 26) return '--' + String.fromCharCode(97 + num); // a-z const letters = 'abcdefghijklmnopqrstuvwxyz'; let result = ''; num -= 26; result += letters[Math.floor(num / 26)]; result += letters[num % 26]; return '--' + result;}
function processFile(filePath) { let html = fs.readFileSync(filePath, 'utf8'); let modified = false;
const matches = html.match(/class="[^"]+"/g) || [];
// Collect --tw-* variables (first file only, or reset per file - using global map) const varMatches = html.match(/--tw-[a-z0-9-]*/g) || []; varMatches.forEach(v => { if (!varMap[v]) varMap[v] = getVarShortName(varIdx++); });
// First pass: collect class mappings matches.forEach(m => { const arr = m.slice(7, -1).split(' ').filter(c => c); arr.forEach(c => { if (!shouldSkip(c) && !classMap[c]) classMap[c] = 'c' + idx++; }); });
// Also create dark: mappings (e.g., dark:text-primary-300 → same cXX as text-primary-300) Object.keys(classMap).forEach(orig => { const darkVer = 'dark:' + orig; classMap[darkVer] = classMap[orig]; });
// Also create responsive mappings (sm:, md:, lg: → same cXX as base) ['sm:', 'md:', 'lg:', 'xl:', '2xl:'].forEach(prefix => { Object.keys(classMap).forEach(orig => { if (!orig.includes(':') && classMap[orig]) { const respVer = prefix + orig; classMap[respVer] = classMap[orig]; } }); });
// Second pass: replace classes in HTML matches.forEach(m => { const arr = m.slice(7, -1).split(' ').filter(c => c); const newArr = arr.map(c => shouldSkip(c) ? c : classMap[c]); if (newArr.join(' ') !== arr.join(' ')) { html = html.replace(m, 'class="' + newArr.join(' ') + '"'); modified = true; } });
// Replace --tw-* variables in HTML and inline styles Object.entries(varMap).forEach(([orig, short]) => { const varRegex = new RegExp(orig.replace(/[-]/g, '\\-'), 'g'); if (html.match(varRegex)) { html = html.replace(varRegex, short); modified = true; } });
// Third pass: replace in ALL CSS Object.entries(classMap).forEach(([orig, short]) => { if (shouldSkip(orig)) return;
// For regular classes: escape dashes, NOT brackets (CSS keeps them as-is) let escaped = orig.replace(/-/g, String.raw`\-`);
// 1. Base class: .flex-row → .c6 const basePattern = String.raw`\.` + escaped; const baseRegex = new RegExp(basePattern + '(?=[{:, >])', 'g'); html = html.replace(baseRegex, '.' + short);
// 2. Dark variant: .dark\:flex-row → .c6 if (orig.startsWith('dark:')) { const baseClass = orig.slice(5); let baseEscaped = baseClass.replace(/-/g, String.raw`\-`); const darkPattern = String.raw`\.dark\\:` + baseEscaped; const darkRegex = new RegExp(darkPattern + '(?=[{:, >])', 'g'); html = html.replace(darkRegex, '.' + short); }
// 3. Responsive variant if (orig.match(/^(sm|md|lg|xl|2xl):/)) { const baseClass = orig.replace(/^(sm|md|lg|xl|2xl):/, ''); const prefix = orig.match(/^(sm|md|lg|xl|2xl):/)[1]; const baseEscaped = baseClass.replace(/-/g, String.raw`\-`);
const respPattern = String.raw`\.` + prefix + String.raw`\\:` + baseEscaped; const respRegex = new RegExp(respPattern + '(?=[{:, >])', 'g'); html = html.replace(respRegex, '.' + short); }
// 4. Arbitrary value classes: w-[88px], max-w-[80ch], border-t-[6px] // In CSS: brackets are escaped as \[ and \] if (orig.includes('[')) { // Build regex pattern with backslash+bracket for each bracket // \x5c in regex = backslash, \x5b = [ const cssClass = orig.replace(/\[/g, '\\x5c\\x5b').replace(/\]/g, '\\x5c\\x5d'); const arbiPattern = '.' + cssClass; const arbiRegex = new RegExp(arbiPattern + '(?=[{:, >])', 'g'); html = html.replace(arbiRegex, '.' + short);
// Dark + arbitrary if (orig.startsWith('dark:')) { const baseClass = orig.slice(5); const cssClass2 = baseClass.replace(/\[/g, '\\x5c\\x5b').replace(/\]/g, '\\x5c\\x5d'); const darkArbiPattern = '.dark\\:' + cssClass2; const darkArbiRegex = new RegExp(darkArbiPattern + '(?=[{:, >])', 'g'); html = html.replace(darkArbiRegex, '.' + short); }
// Responsive + arbitrary if (orig.match(/^(sm|md|lg|xl|2xl):/)) { const baseClass = orig.replace(/^(sm|md|lg|xl|2xl):/, ''); const prefix = orig.match(/^(sm|md|lg|xl|2xl):/)[1]; const cssClass2 = baseClass.replace(/\[/g, '\\x5c\\x5b').replace(/\]/g, '\\x5c\\x5d'); const respArbiPattern = '.' + prefix + '\\:' + cssClass2; const respArbiRegex = new RegExp(respArbiPattern + '(?=[{:, >])', 'g'); html = html.replace(respArbiRegex, '.' + short); } } });
// Fourth pass: handle CSS selectors with no- prefix classes // e.g., a:not(.no-external-icon) → a:not(.cXX) // e.g., a[data-no-external-icon] → a[data-cXX] Object.entries(classMap).forEach(([orig, short]) => { if (orig.startsWith('no-')) { // Replace .no-external-icon in CSS selectors const escaped = orig.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); const selectorRegex = new RegExp('\\.' + escaped + '(?=[^a-zA-Z0-9]|$)', 'g'); html = html.replace(selectorRegex, '.' + short);
// Also replace data-no-external-icon in attribute selectors: [data-no-external-icon] → [data-cXX] const attrRegex = new RegExp('\\[data-' + escaped + '\\]', 'g'); html = html.replace(attrRegex, '[data-' + short + ']');
// And data-no-external-icon="..." in HTML: data-no-external-icon="..." → data-cXX="..." const htmlAttrRegex = new RegExp('data-' + escaped + '=', 'g'); html = html.replace(htmlAttrRegex, 'data-' + short + '='); } });
if (modified) fs.writeFileSync(filePath, html);}
function walkDir(dir) { if (!fs.existsSync(dir)) return; fs.readdirSync(dir).forEach(name => { const full = path.join(dir, name); const stat = fs.statSync(full); if (stat.isDirectory()) walkDir(full); else if (name.endsWith('.html')) processFile(full); });}
// Also update tailwind.css with minified class names and CSS variablesfunction updateCSS(filePath) { if (!fs.existsSync(filePath)) return; let css = fs.readFileSync(filePath, 'utf8'); let modified = false;
// Replace --tw-* variables in CSS Object.entries(varMap).forEach(([orig, short]) => { const varRegex = new RegExp(orig.replace(/[-]/g, '\\-'), 'g'); if (css.match(varRegex)) { css = css.replace(varRegex, short); modified = true; } });
// Replace ALL class names in CSS selectors Object.entries(classMap).forEach(([orig, short]) => { if (shouldSkip(orig)) return;
let escaped = orig.replace(/-/g, String.raw`\-`);
// 1. Base class in selectors: .flex-row → .c6 const selectorRegex = new RegExp('\\.' + escaped + '(?=[^a-zA-Z0-9\\-]|$)', 'g'); if (css.match(selectorRegex)) { css = css.replace(selectorRegex, '.' + short); modified = true; }
// 2. Dark variant: .dark\:flex-row → .c6 if (orig.startsWith('dark:')) { const baseClass = orig.slice(5); let baseEscaped = baseClass.replace(/-/g, String.raw`\-`); const darkPattern = String.raw`\.dark\\:` + baseEscaped; const darkRegex = new RegExp(darkPattern + '(?=[^a-zA-Z0-9\\-]|$)', 'g'); if (css.match(darkRegex)) { css = css.replace(darkRegex, '.' + short); modified = true; } }
// 3. Responsive variant: .md\:flex-row → .c6 if (orig.match(/^(sm|md|lg|xl|2xl):/)) { const baseClass = orig.replace(/^(sm|md|lg|xl|2xl):/, ''); const prefix = orig.match(/^(sm|md|lg|xl|2xl):/)[1]; const baseEscaped = baseClass.replace(/-/g, String.raw`\-`); const respPattern = String.raw`\.` + prefix + String.raw`\\:` + baseEscaped; const respRegex = new RegExp(respPattern + '(?=[^a-zA-Z0-9\\-]|$)', 'g'); if (css.match(respRegex)) { css = css.replace(respRegex, '.' + short); modified = true; } }
// 4. Arbitrary value classes: .w-[88px] → .c5 if (orig.includes('[')) { const cssClass = orig.replace(/\[/g, '\\x5c\\x5b').replace(/\]/g, '\\x5c\\x5d'); const arbiPattern = '.' + cssClass; const arbiRegex = new RegExp(arbiPattern + '(?=[^a-zA-Z0-9\\-]|$)', 'g'); if (css.match(arbiRegex)) { css = css.replace(arbiRegex, '.' + short); modified = true; } } });
if (modified) fs.writeFileSync(filePath, css);}
walkDir('_site');updateCSS('_site/assets/css/tailwind.css');console.log('Minified ' + idx + ' classes, ' + varIdx + ' CSS variables');