fix(build): rename file so it can be required (#23)

Closes #22

Author: kentcdodds

other/cjs-ify.js

@@ -1,13 +1,30 @@
+// This file exists because we want to develop our package with Native ESM
+// but distribute our package as CommonJS. We need to use native ESM because
+// several deps use ESM and it's just easier to integrate with them using native
+// ESM. But we want to expose CommonJS because our package consumers aren't ready
+// to consume native ESM packages yet...
+
+// This is hopefully temporary...
 import fs from 'fs'
 import url from 'url'
 import path from 'path'
 
 const __dirname = path.dirname(url.fileURLToPath(import.meta.url))
-const pkgPath = path.join(__dirname, '../dist/package.json')
+const distPath = path.join(__dirname, '../dist')
+const pkgPath = path.join(distPath, 'package.json')
 
 const cjsPkgInfo = {
   type: 'commonjs',
   main: './index.js',
   types: './index.d.ts',
 }
 fs.writeFileSync(pkgPath, JSON.stringify(cjsPkgInfo))
+
+// when babel compiles this file, it renames it from `.cjs` to `.js` but our
+// code imports it with the extension (becuase during dev we're native ESM so we
+// have to) and it's easier to update the extension than it would be to update
+// the import in the code during the build.
+fs.renameSync(
+  path.join(distPath, 'dirname-messed-up.js'),
+  path.join(distPath, 'dirname-messed-up.cjs'),
+)