Suggestion: Better documentation/error-messages with try repo --commit-msg-filename

[AndersSteenNilsen]

search tried in the issue tracker

stages: [commit-msg] --commit-msg-filename

describe your issue

I am trying to make a hook that checks commit messages. I tried to use the try-repo together with --commit-msg-filename. I passed an arbitrary filename and did not realize that this file actually needs to exist.
I might be stupid for not realizing this earlier, but in order to ease the pain for others, if the file does not exists, maybe pass the filename to the hook in any case or maybe raise an exception.

Added .pre-commit-hooks.yaml.

pre-commit --version

pre-commit 2.19.0

.pre-commit-config.yaml

-   id: auto-git-messsage
    name: Generate git message
    description: This hook trims trailing whitespace.
    entry: create_message
    language: python
    stages: [commit-msg]

~/.cache/pre-commit/pre-commit.log (if present)

No response

[asottile]

unfortunately can't change this without breaking things. missing files are intentionally skipped