The documentation could show a cookiecutter.json rewrite pre-prompt example

[andredias]

• Cookiecutter version: 2.5.0
• Template project url:
• Python version: 3.11
• Operating System: Ubuntu 23.10

Description:

The documentation about hook execution says:

pre_prompt: Scripts run in the root directory of a copy of the repository directory. That allows the rewrite of cookiecutter.json to your own needs.

However, it is not clear how to rewrite cookiecutter.json as the provided example does something else.

I'd love an example showing how pre_prompt could be used to inject a variable into the cookiecutter.json.

[devmcp]

I'd like to see this too (did you find an example of this anywhere online @andredias?)

[andredias]

I created an example to insert the current Python version into the cookiecutter.json file:

# hooks/pre_prompt.py

import json
import sys
from pathlib import Path

config = Path("cookiecutter.json")
data = json.loads(config.read_text())
data["python_version"] = f"{sys.version_info.major}.{sys.version_info.minor}"
config.write_text(json.dumps(data, indent=4))

[gregcaporaso]

Thanks for the example @andredias, that worked for me.

I have a working example of this here now, in case it's helpful for others.