html-codemod.js (1411B)
1 /* 2 * extract script content from a series of html files, run a 3 * jscodeshift codemod on them and overwrite the original file. 4 * 5 * Usage: node html-codemod.js codemod-file list of files to process 6 */ 7 const { JSDOM } = require('jsdom'); 8 const fs = require('fs'); 9 const {execFileSync} = require('child_process'); 10 11 const codemod = process.argv[2]; 12 const filenames = process.argv.slice(3); 13 filenames.forEach((filename) => { 14 const originalContent = fs.readFileSync(filename, 'utf-8'); 15 const dom = new JSDOM(originalContent); 16 const document = dom.window.document; 17 const scriptTags = document.querySelectorAll('script'); 18 const lastTag = scriptTags[scriptTags.length - 1]; 19 const script = lastTag.innerHTML; 20 if (!script) { 21 console.log('NO SCRIPT FOUND', filename); 22 return; 23 } 24 const scriptFilename = filename + '.codemod.js'; 25 const scriptFile = fs.writeFileSync(scriptFilename, script); 26 // exec jscodeshift 27 const output = execFileSync('./node_modules/.bin/jscodeshift', ['-t', codemod, scriptFilename]); 28 console.log(filename, output.toString()); // output jscodeshift output. 29 // read back file, resubstitute 30 const newScript = fs.readFileSync(scriptFilename, 'utf-8').toString(); 31 const modifiedContent = originalContent.split(script).join(newScript); 32 fs.writeFileSync(filename, modifiedContent); 33 fs.unlinkSync(scriptFilename); 34 });