feat(run-pre-commit): Add support for pre-commit version pinning

Author: Techassi

run-pre-commit/action.yml

@@ -8,6 +8,9 @@ inputs:
   python-version:
     description: Python version to install
     default: "3.12"
+  pre-commit-version:
+    description: Pre-commit version to install
+    default: 4.2.0
   rust:
     description: Whether to install the Rust toolchain (and which version to use)
   rust-components:
@@ -33,6 +36,21 @@ runs:
         cache-dependency-path: .pre-commit-config.yaml
         cache: 'pip'
 
+    - name: Install pre-commit (${{ env.PRE_COMMIT_VERSION }})
+      shell: bash
+      env:
+        PRE_COMMIT_VERSION: ${{ inputs.pre-commit-version }}
+      run: |
+        python -m pip install "pre-commit==$PRE_COMMIT_VERSION"
+
+      # This caches downloaded pre-commit hook artifacts and results in faster
+      # workflow runs after an initial hydration run with the exact same hooks
+    - name: Setup pre-commit Cache
+      uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+      with:
+        path: ~/.cache/pre-commit
+        key: pre-commit-${{ inputs.pre-commit-version }}-python${{ inputs.python-version }}-${{ hashFiles('.pre-commit-config.yaml') }}
+
     - name: Setup Rust Toolchain
       uses: dtolnay/rust-toolchain@c5a29ddb4d9d194e7c84ec8c3fba61b1c31fee8c
       if: ${{ inputs.rust }}
@@ -72,6 +90,10 @@ runs:
         github_access_token: ${{ inputs.nix-github-token }}
         install_url: https://releases.nixos.org/nix/nix-${{ inputs.nix }}/install
 
-    - uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1
-      with:
-        extra_args: "--from-ref '${{ github.event.pull_request.base.sha }}' --to-ref '${{ github.event.pull_request.head.sha }}'"
+    - name: Run pre-commit
+      shell: bash
+      env:
+        BASE_SHA: ${{ github.event.pull_request.base.sha }}
+        HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+      run: |
+        pre-commit run --show-diff-on-failure --color always --from-ref "$BASE_SHA" --to-ref "$HEAD_SHA"