How can I rename files with Grunt, based on the respective file's parent folder name?

Question

I have a the following structure:

src/
    modules/
        module1/
            js/
                main.js
            scss/
                main.scss
                 


        

Answer 1

Not exactly an answer to your question but i made it here looking for relative dest folders with grunt so... Here is how i solved it

...
base: {
  files:
  [
    {
      expand: true,
      cwd: 'app/design/frontend/',
      src: ['**/Magento_Sales/email-src/*.html'],
      dest: '../../Magento_Sales/email/',
      rename: function(dest, src, expand) {
        src = path.parse(src)
        return path.join(expand.cwd, src.dir, dest, src.base);
      }
    },
  ],
}
...

This little bit path.join(expand.cwd, src.dir, dest, src.base); just creating the path i need.

expand.cwd = app/design/frontend/

src.dir = /Magento_Sales/email-src/

dest = ../../Magento_Sales/email/

src.base = .html

and all together it = app/design/frontend///Magento_Sales/email/.html

and in my situation it will now compile my html emails in relative destination folders