Codekit custom hook to process TXT files in a folder to form the theme.json for the WordPress site editor.

process.sh

#!/bin/bash

rm -f -- "$CK_PROJECT_ROOT/theme.json" && cat "$CK_PROJECT_ROOT/src/json/"*.txt >> "$CK_PROJECT_ROOT/theme.json"

Codekit docs for reference.

• Separate your theme.json in several TXT files as you wish and put them in the src/json folder. The TXT files should be built in a way to result in a valid JSON structure for the resulting theme.json file. They will be concatenated only, so no validation will occur.
• Add your theme project to Codekit.
• Configure the TXT files in Codekit to process them in place (no copying or changing directories).
• Click on any TXT file to reveal the “Edit hook” button.
• Open the hook interface and add the shell script above in the window.

Now, when you edit any of the TXT files, a new theme.json will be created at the project root.