This is a tool which runs make when a file in the current directory is changed.
You can configure it with a file called .watchmakerc in the directory you're running it from.
The file should contain some YAML in the following format:
default_make: # A list of make targets to run
extensions: # A list of file extensions that should trigger make. If not given, all files trigger make.
path: # A list of subdirectories to watch. If not given, all subdirectories under this one are watched.
I wrote this to learn Elixir, and to replace my existing Python script which is quite fiddly.
Build a release by running mix release.
Then the folder _build/dev/rel/watchmake contains everything needed to run the program.
Run _build/dev/rel/watchmake/bin/watchmake start to start it.
Press Ctrl+C twice to end it.