34 lines
1.4 KiB
JavaScript
34 lines
1.4 KiB
JavaScript
/*
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* extract script content from a series of html files, run a
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* jscodeshift codemod on them and overwrite the original file.
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*
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* Usage: node html-codemod.js codemod-file list of files to process
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*/
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const { JSDOM } = require('jsdom');
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const fs = require('fs');
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const {execFileSync} = require('child_process');
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const codemod = process.argv[2];
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const filenames = process.argv.slice(3);
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filenames.forEach((filename) => {
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const originalContent = fs.readFileSync(filename, 'utf-8');
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const dom = new JSDOM(originalContent);
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const document = dom.window.document;
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const scriptTags = document.querySelectorAll('script');
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const lastTag = scriptTags[scriptTags.length - 1];
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const script = lastTag.innerHTML;
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if (!script) {
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console.log('NO SCRIPT FOUND', filename);
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return;
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}
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const scriptFilename = filename + '.codemod.js';
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const scriptFile = fs.writeFileSync(scriptFilename, script);
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// exec jscodeshift
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const output = execFileSync('./node_modules/.bin/jscodeshift', ['-t', codemod, scriptFilename]);
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console.log(filename, output.toString()); // output jscodeshift output.
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// read back file, resubstitute
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const newScript = fs.readFileSync(scriptFilename, 'utf-8').toString();
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const modifiedContent = originalContent.split(script).join(newScript);
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fs.writeFileSync(filename, modifiedContent);
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fs.unlinkSync(scriptFilename);
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});
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