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import fs from 'fs-extra';
import { glob } from 'glob';
import MarkdownIt from 'markdown-it';
const errorTitle = 'Invalid JSON in fenced code block';
const errorBody =
'Fix this manually by ensuring each block is a valid, complete JSON document.';
const markdownGlob = '{docs,lib}/**/*.md';
const markdown = new MarkdownIt('zero');
let issues = 0;
markdown.enable(['fence']);
/**
*
* @param {string} file
* @param {import('markdown-it').Token} token
*/
function checkValidJson(file, token) {
const start = token.map ? token.map[0] + 1 : 0;
const end = token.map ? token.map[1] + 1 : 0;
try {
JSON.parse(token.content);
} catch (err) {
issues += 1;
if (process.env.CI) {
console.log(
`::error file=${file},line=${start},endLine=${end},title=${errorTitle}::${err.message}. ${errorBody}`,
);
} else {
console.log(
`${errorTitle} (${file} lines ${start}-${end}): ${err.message}`,
);
}
}
}
/**
*
* @param {string} file
*/
async function processFile(file) {
const text = await fs.readFile(file, 'utf8');
const tokens = markdown.parse(text, undefined);
tokens.forEach((token) => {
if (token.type === 'fence' && token.info === 'json') {
checkValidJson(file, token);
}
});
}
await (async () => {
const files = await glob(markdownGlob);
for (const file of files) {
await processFile(file);
}
if (issues) {
console.error(
`${issues} issues found. ${errorBody} See above for lines affected.`,
);
process.exit(1);
}
})();
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