pre-commit hook requires `code-embedder` pre-installed

[JohelEGP]

Greetings.

pre-commit is great because its hooks require 0 setup with respect to dependency installation.

Both the README's option B and the tracked .pre-commit-hooks.yaml use language: system.
This makes it so that a system installation of code-embedder is required to use the hook.
The output of using the README's option B in my pre-commit configuration serves as evidence:

Code embedder............................................................Failed
- hook id: code-embedder
- exit code: 1

Executable `code-embedder` not found

Simply switching to language: python in .pre-commit-hooks.yaml should make it so that the dependency on code-embedder is fetched from the language's package manager.
Then, a more conventional pre-commit config entry will do the job:

- repo: https://github.com/kvankova/code-embedder
  rev: v1.1.2
  hooks:
    - id: code-embedder
      # name: Code embedder # No longer needed, as it comes from the `repo`'s `.pre-commit-hooks.yaml`.
      entry: code-embedder run # No longer needs a system installation.
      # language: system # No longer needed.

You should be able to go further, and make the .pre-commit-hooks.yaml's entry just like above, with the run argument included.
That should reduce the above to this:

- repo: https://github.com/kvankova/code-embedder
  rev: v1.1.2
  hooks:
    - id: code-embedder

For now, this is what I'm using, with great success:

- repo: local
  hooks:
  - id: code-embedder
    name: Code embedder
    entry: code-embedder run
    language: python
    files: .*.md$
    additional_dependencies: [code-embedder==1.1.2]

Incidentally, I should be using types: [markdown] to more correctly filter the types the hook operates on.
I see that .pre-commit-hooks.yaml is totally unconstrained on that, so it's also needed there.
In the end, I think .pre-commit-hooks.yaml should look like this:

- id: code-embedder
  name: Code embedder
  description: >
    Keep your code snippets in README up-to-date!
  entry: code-embedder run
  types: [markdown]
  language: python

Thank you for this software.

[kvankova]

Thanks for sharing this! I will update it and release a new version next week:)