chore: remove old parser

tools/challenge-parser/index.js

@@ -0,0 +1,40 @@
+const unified = require('unified');
+const vfile = require('to-vfile');
+const markdown = require('remark-parse');
+const remark2rehype = require('remark-rehype');
+const html = require('rehype-stringify');
+const frontmatter = require('remark-frontmatter');
+const raw = require('rehype-raw');
+
+const frontmatterToData = require('./frontmatter-to-data');
+const textToData = require('./text-to-data');
+const testsToData = require('./tests-to-data');
+const { challengeSeedToData } = require('./challengeSeed-to-data');
+const solutionsToData = require('./solution-to-data');
+
+const processor = unified()
+  .use(markdown)
+  .use(frontmatter, ['yaml'])
+  .use(frontmatterToData)
+  .use(testsToData)
+  .use(remark2rehype, { allowDangerousHTML: true })
+  .use(raw)
+  .use(solutionsToData)
+  .use(textToData, ['description', 'instructions'])
+  .use(challengeSeedToData)
+  // the plugins below are just to stop the processor from throwing
+  // we need to write a compiler that can create graphql nodes
+  .use(html);
+
+exports.parseMarkdown = function parseMarkdown(filename) {
+  return new Promise((resolve, reject) =>
+    processor.process(vfile.readSync(filename), function(err, file) {
+      if (err) {
+        err.message += ' in file ' + filename;
+        reject(err);
+      }
+      delete file.contents;
+      return resolve(file.data);
+    })
+  );
+};