🐛 Ensured directory exists before attempting write

- Currently, nothing happens if the file doesn't exist, the error is swallowed
- This module should ensure the directory exists at the point of write, else Ghost has to do too much
- TODO: improve the testing and error handling here as well

ghost/minifier/lib/minifier.js

@@ -101,6 +101,9 @@ class Minifier {
     async writeFile(contents, dest) {
         if (contents) {
             let writePath = this.getFullDest(dest);
+            // Ensure the output folder exists
+            await fs.mkdir(this.destPath, {recursive: true});
+            // Create the file
             await fs.writeFile(writePath, contents);
             return writePath;
         }