SwitchFile is a simple gem for opening a file related to a currently open file.

1. Install SwitchFile

   gem install switch_file

2. Add a .switch_file to your project root directory. A .switch_file is a plain ruby file containing an array of hashes. Each hash represents a file type. A file type has the following attributes:

   • name - name of the file type
   • shortcut - a short, unique key for the file type
   • path_generator - a ruby block that will determine the path of the matching file type of a class name
   • path_regex - a regex that determines if a file path matches the file type
   • command - the editor that will open the file

   You can find sample SwitchFile configuration files at the examples.

3. Configure your editor to launch switch_file based on the current file. With geany,

4. Go to Build/Set Build Commands.

5. Change the execute command to switch_file --path %d/%f.

6. Running Build/Execute will now launch switch_file based on the currently open file.