Update magic-nix-cache binary revision

[cole-h]

Summary by CodeRabbit

• Chores
  • Updated internal tooling state and default revision used by the action.
  • Script now triggers an additional generation step when run.
  • .gitignore updated to ignore local environment directory.
• Documentation
  • README default revision value updated to match tooling.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 3992ad10-6761-478e-95ae-02642d8a6533

📥 Commits

Reviewing files that changed from the base of the PR and between 6ee0a4a and a37101c.

📒 Files selected for processing (4)

• README.md
• action.yml
• tools/state.json
• tools/update-state.sh

✅ Files skipped from review due to trivial changes (2)

• README.md
• tools/state.json

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📝 Walkthrough

Walkthrough

Updates to repository tooling and configuration: add .direnv to .gitignore, bump a pinned revision (binary_revision / source-revision) to a new hash, and modify tools/update-state.sh to compute a script root and invoke a generate.sh step after main runs.

Changes

Configuration & Tooling Updates

Layer / File(s)	Summary
Revision Pin tools/state.json	binary_revision updated from f744b910cd69226888c61a3ddf933fdbe7286095 → 4cc363589df8090801c098cdcde1bdd42562318a.
Inputs / Docs action.yml, README.md	Default source-revision value updated to the same new hash in action.yml (input default) and documented default in README.md.
Script Control Flow tools/update-state.sh	Adds scriptroot=$(dirname "$(realpath "$0")") and calls "$scriptroot"/generate.sh after main, introducing a post-update generation step.
Ignore List .gitignore	Adds .direnv to the repository ignore list.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰
I dug a burrow, tidy and bright,
Updated hashes by moonlit night,
A script now calls its little kin,
Ignored the clutter—.direnv within,
Hop forward, repo—fresh and light! 🥕

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'Update magic-nix-cache binary revision' directly matches the main purpose of the pull request: updating the binary_revision value across multiple configuration files.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch update-mnc-rev

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