Minimal pre-commit implementation

[sgonorov]

Minimal pre-commit configuration and CI integration.

For now only fixes whitespaces/end-of-file and some other small checks.

Will be used a base for adding other linters.

For the maxed-out Formatting/Linting see PR: #2980

[as-suvorov]

Am I right that it would be required to fix linting issues for any changed files?

[sgonorov]

Yes, only for changed ones.

[as-suvorov]

So If I change 2 lines in several hundred loc file I would be required to fix lint for the whole file. Then feature changes would endup hidden in the linting changes. Is it correct?

[sgonorov]

Yes, that's the way. We can't partially format file sadly.
But for now it's mostly whitespaces as a starting point so it won't affect much. Later I'll try to make a separate PRs with properly formatted files and new formatters/linters introduction.

[sgonorov]

BTW, for python there's a formatter called Darker which is compatible with Ruff format, but applies changes only to changed lines. When we get to it, maybe we'll use it instead of simply enabling Ruff across the codebase.

[sgonorov]

It ignores python files. I can add CPP-related file to exception for now too if needed.

[Wovchena]

What "it" refers to?

[sgonorov]

Whitespace hook - for now it ignores only Pyhton files. We can add cpp files also.

[Wovchena]

Add cpp to fix #3008 (comment) Any reason not to do so?

[sgonorov]

Added. Then i'll create some migratiion PRs where fix all the whitespaces and remove these ignores.

[Copilot]

Pull Request Overview

This PR introduces a minimal pre-commit configuration for the repository with automated linting in CI. The implementation focuses on basic code hygiene checks like whitespace handling, file endings, and security validations, serving as a foundation for future linting tools.

Key Changes:

• Added pre-commit configuration with standard hooks for whitespace, file endings, and basic validation
• Created GitHub Actions workflow to run pre-commit checks on changed files in pull requests

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
.pre-commit-config.yaml	Defines pre-commit hooks for trailing whitespace, end-of-file fixing, merge conflicts, symlinks, private keys, line endings, and file format validation
.github/workflows/lint.yml	Implements CI workflow that downloads OpenVINO, sets up dependencies, and runs pre-commit checks on changed files

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[as-suvorov]

Please align rules with openvino: https://github.com/openvinotoolkit/openvino/blob/master/pyproject.toml#L45

[sgonorov]

Why we should also follow 160 line-length rule? Are there any specific reasons? I consider avoiding it as much as possible - such a high value defeats formatting purpose and makes code much harder to read.

[Wovchena]

Consistency. You can ask OV to change that

[sgonorov]

openvinotoolkit/openvino#32987 - will change to 120, it's not perfect but it's much better. I'll just wait for this PR to be merged.

[sgonorov]

Change implemented in OV - now line length equals 120. I've also updated the PR.

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

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