.github: Move pre-commit checks to local self-hosted runners

.github/workflows/autopush.yaml

@@ -25,7 +25,8 @@ env:
 jobs:
   pre-commit:
     name: Run pre-commit
-    runs-on: ubuntu-latest
+    runs-on:
+      group: mala-lab-pre-commit
     if: github.event.sender.login == 'cbrxyz'
     steps:
       - name: Check out code from GitHub

.github/workflows/ci.yaml

@@ -37,7 +37,8 @@ jobs:
     name: Run tests and build docs
     needs: avoid-duplicate-ci
     if: needs.avoid-duplicate-ci.outputs.should_skip != 'true'
-    runs-on: self-hosted
+    runs-on:
+      group: mala-lab-main
     steps:
       - name: Configure catkin workspace folder structure
         run: |
@@ -111,7 +112,8 @@ jobs:
 
   deploy-docs:
     name: Deploy docs from master
-    runs-on: self-hosted
+    runs-on:
+      group: mala-lab-main
     needs: super-ci
     # https://github.com/actions/runner/issues/491#issuecomment-850884422
     if: |

.github/workflows/pre-commit.yaml

@@ -0,0 +1,61 @@
+---
+name: Run pre-commit
+
+# yamllint disable-line rule:truthy
+on: [push, workflow_dispatch]
+
+# Cancels this run if a new one referring to the same object and same workflow
+# is requested
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  # The version of caching we are using. This can be upgraded if we
+  # significantly change CI to the point where old caches become irrelevant.
+  CACHE_VERSION: 0
+  # Default Python version. Noetic defaults to 3.8.
+  DEFAULT_PYTHON: 3.8
+  # Location of the pre-commit cache. This is set by pre-commit, not us!
+  PRE_COMMIT_CACHE: ~/.cache/pre-commit
+
+jobs:
+  pre-commit:
+    name: Run pre-commit
+    runs-on:
+      group: mala-lab-pre-commit
+    steps:
+      - name: Check out code from GitHub
+        uses: actions/[email protected]
+        with:
+          submodules: recursive
+      - name: Set up Python ${{ env.DEFAULT_PYTHON }}
+        uses: actions/[email protected]
+        with:
+          python-version: ${{ env.DEFAULT_PYTHON }}
+          cache: "pip"
+      - name: Install pre-commit hooks
+        run: |
+          python --version
+          pip install "$(cat requirements.txt | grep pre-commit)"
+      - name: Generate pre-commit cache key
+        id: pre-commit_cache_key
+        run: >
+          echo "::set-output
+          name=key::${{ env.CACHE_VERSION }}-${{ env.DEFAULT_PYTHON }}-${{
+          hashFiles('.pre-commit-config.yaml') }}"
+      - name: Restore base pre-commit environment
+        id: cache-pre-commmit
+        uses: actions/[email protected]
+        with:
+          path: ${{ env.PRE_COMMIT_CACHE }}
+          key: >
+            ${{ runner.os
+            }}-pre-commit-${{ steps.pre-commit_cache_key.outputs.key }}
+      - name: Install pre-commit dependencies if no cache
+        if: steps.cache-precommit.outputs.cache-hit != 'true'
+        run: |
+          pre-commit install-hooks
+      - name: Run pre-commit
+        run: |
+          pre-commit run --all-files --show-diff-on-failure