Folder monitoring and auto find replace

I am brand new to atom downloaded it today.

I want to have a package which can monitor a folder for new content (I understand this may have to be done with Automator I’m on OSX)

I would like it to do a find and replace for the whole project and saves all the changes to the folders.

I have a website built in WordPress on localhost and this will swop out

http://localhost:8888/

for

https://

over all the folders so when I export the html from wordpress it does the find and replace ready to upload to static storage on github, then it is built in netlify.

Hope you can help I have found seperate packages for atom that do parts of this but none which marry it all together and I am struggling to it all to work.

Many thanks in advance