Stop using prek-action

[5ouma]

It misses some features which implemented manually.

[Copilot]

Pull request overview

This PR removes the dependency on j178/prek-action and replaces it with explicit installation/execution steps inside the composite pre-commit action, adding caching and cache cleanup to cover missing features.

Changes:

• Install prek via a release installer script instead of using j178/prek-action.
• Add GitHub Actions cache for ~/.cache/prek and run prek cache gc after execution.
• Update Renovate regex management to track the new PREK_VERSION: vX.Y.Z format.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
pre-commit/action.yml	Replaces prek-action with manual install/run, adds caching and cache GC.
.github/renovate.json	Updates regex to detect PREK_VERSION in the action YAML.

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[coderabbitai]

Walkthrough

The PR updates Renovate configuration to match version strings with v prefix and refactors the pre-commit GitHub Actions workflow to use a direct prek installer with caching instead of the pinned action.

Changes

Cohort / File(s)	Summary
Renovate Configuration .github/renovate.json	Updated regex pattern in customManagers entry to capture version strings prefixed with v (changed from X.Y.Z to vX.Y.Z format) for the j178/prek dependency.
GitHub Actions Workflow pre-commit/action.yml	Replaced pinned j178/prek-action invocation with direct curl installer. Added actions/cache step to cache ~/.cache/prek keyed by OS and config file hash. Modified prek invocation to use prek run -ac="$PREK_CONFIG" pattern. Introduced cleanup step with prek cache gc before config file removal.

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'Stop using prek-action' directly and clearly describes the main change—reverting from using the prek-action to a manual implementation.
Description check	✅ Passed	The description relates to the changeset by explaining the rationale (missing features) for stopping use of prek-action, though it lacks specific details about which features are missing.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch revert-pre-commit-prek-action

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[coderabbitai]

Warning

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👉 Steps to fix this

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@pre-commit/action.yml`:
- Around line 22-27: Replace the unsafe "curl | sh" in the "⚡ Install prek"
step: first curl the release artifact to a local file using the PREK_VERSION env
var, fetch the published SHA-256 checksum for that release, verify the
downloaded file's checksum (sha256sum -c or equivalent), and only then run the
installer script (sh ./prek-installer.sh); update the step that currently runs
curl -L
"https://github.com/j178/prek/releases/download/$PREK_VERSION/prek-installer.sh"
| sh to perform download, checksum verification, and execution in three explicit
commands.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: e48be694-124f-4ceb-89f7-c8ba5cf4cea1

📥 Commits

Reviewing files that changed from the base of the PR and between f7b032e and 69cadf9.

📒 Files selected for processing (2)

• .github/renovate.json
• pre-commit/action.yml

[5ouma]

@coderabbitai approve

[coderabbitai]

✅ Actions performed

Comments resolved and changes approved.