Pass file names by default

[yarnabrina]

Description

Current hook definition stops passing file names as detected by pre-commit, and completely relies on the specifications in pyproject.toml.

Even though it's a good practice and quite common in python packages, I'd argue that end users (python developers using these packages) seldom configure with pyproject.toml. Their objective is just to run a tool to clean up the codebase as quickly as possible.

The changes in fork tries to resolve this by passing files from pre-commit by default (which is also the default for other standard linters - pylint, flake8, etc.).

If someone does configure vulture using pyproject.toml, they can still choose to use the current settings by defining paths in pyproject.toml and setting pass_filenames as false.

Related Issue

resolves #280

Checklist:

• I have updated the documentation in the README.md file.
• I have added an entry in CHANGELOG.md.
• I have added or adapted tests to cover my changes.
• I have run tox -e fix-style to format my code and checked the result with tox -e style.

[codecov-commenter]

Codecov Report

Merging #281 (d81ae23) into master (ebd643d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #281   +/-   ##
=======================================
  Coverage   99.37%   99.37%           
=======================================
  Files          18       18           
  Lines         635      635           
=======================================
  Hits          631      631           
  Misses          4        4           

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[jendrikseipp]

I read up on this issue again and found the reason why things are configured the way they are: with pass_filenames: true pre-commit will only check modified files and therefore produce many false positives (see #244). While researching this, I found pre-commit run --all-files but I think the current solution of requiring the user to specify the files leads to better results.

I don't see a better solution than the status quo, so I'm closing this PR. But we can definitely reopen it when we find a better solution.