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64 lines
1.5 KiB
64 lines
1.5 KiB
const fs = require('fs');
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function walk(dir) {
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let results = [];
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const list = fs.readdirSync(dir);
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list.forEach(function(file) {
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file = dir + '/' + file;
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const stat = fs.statSync(file);
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if (stat && stat.isDirectory()) {
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/* Recurse into a subdirectory */
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results = results.concat(walk(file));
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} else {
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/* Is a file */
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results.push(file);
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}
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});
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return results;
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}
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function generateID(text) {
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return text
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.toLowerCase()
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.replace(/\s/g, '-')
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.replace(/[^-a-z0-9]/g, '');
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}
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function addHeaderID(line) {
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// check if we're a header at all
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if (!line.startsWith('#')) return;
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// check if it already has an id
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if (/\{#[-A-Za-z0-9]+\}/.match(line)) return;
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const headingText = line.slice(line.indexOf(' ')).trim();
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const headingLevel = line.slice(0, line.indexOf(' '));
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return `${headingLevel} ${headingText} ${generateID(headingText)}`;
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}
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function addHeaderIDs(lines) {
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let inCode = false;
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const results = [];
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lines.forEach(line => {
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// Ignore code blocks
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if (line.startsWith('```')) {
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inCode = !inCode;
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return;
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}
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if (inCode) {
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results.push(line);
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}
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results.push(addHeaderID(line));
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});
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}
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const [path] = process.argv.slice(2);
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const files = walk(path);
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files.forEach(file => {
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if (!file.endsWith('.md')) return;
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const file = fs.readFileSync(file, 'utf8');
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const lines = file.split('\n');
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const updatedLines = addHeaderIDs(lines);
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fs.writeFileSync(file, updatedLines.join('\n'));
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});
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