ci: Run additional sanity checks on repository

.forgejo/actions/prefligit/action.yml

@@ -0,0 +1,22 @@
+name: reflighit
+description: |
+  Runs reflighit, pre-commit reimplemented in Rust.
+inputs:
+  extra_args:
+    description: options to pass to pre-commit run
+    required: false
+    default: '--all-files'
+
+runs:
+  using: composite
+  steps:
+  - name: Install Prefligit
+    shell: bash
+    run: |
+      curl --proto '=https' --tlsv1.2 -LsSf https://github.com/j178/prefligit/releases/download/v0.0.10/prefligit-installer.sh | sh
+  - uses: actions/cache@v3
+    with:
+      path: ~/.cache/prefligit
+      key: prefligit-0|${{ hashFiles('.pre-commit-config.yaml') }}
+  - run: prefligit run --show-diff-on-failure --color=always ${{ inputs.extra_args }}
+    shell: bash

.forgejo/workflows/prefligit-checks.yml

@@ -0,0 +1,15 @@
+name: Checks / Prefligit
+
+on:
+  push:
+
+jobs:
+  prefligit:
+    runs-on: ubuntu-latest
+    env:
+      FROM_REF: ${{ github.event.pull_request.base.sha || (!github.event.forced && ( github.event.before != '0000000000000000000000000000000000000000'  && github.event.before || github.sha )) || format('{0}~', github.sha) }}
+      TO_REF: ${{ github.sha }}
+    steps:
+    - uses: ./.forgejo/actions/prefligit
+      with:
+        extra_args: --from-ref ${{ env.FROM_REF }} --to-ref ${{ env.TO_REF }} --hook-stage manual

.forgejo/workflows/rust-checks.yml

@@ -1,4 +1,4 @@
-name: Rust Checks
+name: Checks / Rust
 
 on:
   push: