Enable cache for pre-commit (#31071)

* enable cache

* test cache

* commai cache

* remove id

* only save on master

---------

Co-authored-by: Justin Newberry <justin@comma.ai>

.github/workflows/selfdrive_tests.yaml

@@ -20,7 +20,7 @@ env:
   DOCKER_LOGIN: docker login ghcr.io -u ${{ github.actor }} -p ${{ secrets.GITHUB_TOKEN }}
   BUILD: selfdrive/test/docker_build.sh base
 
-  RUN: docker run --shm-size 1G -v $PWD:/tmp/openpilot -w /tmp/openpilot -e CI=1 -e PYTHONWARNINGS=error -e FILEREADER_CACHE=1 -e PYTHONPATH=/tmp/openpilot -e NUM_JOBS -e JOB_ID -e GITHUB_ACTION -e GITHUB_REF -e GITHUB_HEAD_REF -e GITHUB_SHA -e GITHUB_REPOSITORY -e GITHUB_RUN_ID -v $GITHUB_WORKSPACE/.ci_cache/scons_cache:/tmp/scons_cache -v $GITHUB_WORKSPACE/.ci_cache/comma_download_cache:/tmp/comma_download_cache -v $GITHUB_WORKSPACE/.ci_cache/openpilot_cache:/tmp/openpilot_cache $BASE_IMAGE /bin/bash -c
+  RUN: docker run --shm-size 1G -v $PWD:/tmp/openpilot -w /tmp/openpilot -e CI=1 -e PRE_COMMIT_HOME=/tmp/pre-commit -e PYTHONWARNINGS=error -e FILEREADER_CACHE=1 -e PYTHONPATH=/tmp/openpilot -e NUM_JOBS -e JOB_ID -e GITHUB_ACTION -e GITHUB_REF -e GITHUB_HEAD_REF -e GITHUB_SHA -e GITHUB_REPOSITORY -e GITHUB_RUN_ID -v $GITHUB_WORKSPACE/.ci_cache/pre-commit:/tmp/pre-commit -v $GITHUB_WORKSPACE/.ci_cache/scons_cache:/tmp/scons_cache -v $GITHUB_WORKSPACE/.ci_cache/comma_download_cache:/tmp/comma_download_cache -v $GITHUB_WORKSPACE/.ci_cache/openpilot_cache:/tmp/openpilot_cache $BASE_IMAGE /bin/bash -c
 
   BUILD_CL: selfdrive/test/docker_build.sh cl
 
@@ -42,6 +42,7 @@ jobs:
     - name: Build devel
       timeout-minutes: 1
       run: TARGET_DIR=$STRIPPED_DIR release/build_devel.sh
+    - uses: ./.github/workflows/setup-pre-commit
     - uses: ./.github/workflows/setup-with-retry
     - name: Check submodules
       if: github.ref == 'refs/heads/master' && github.repository == 'commaai/openpilot'
@@ -66,7 +67,7 @@ jobs:
         cp pyproject.toml $STRIPPED_DIR
         cp poetry.lock $STRIPPED_DIR
         cd $STRIPPED_DIR
-        ${{ env.RUN }} "unset PYTHONWARNINGS && SKIP=check-added-large-files pre-commit run --all"
+        ${{ env.RUN }} "unset PYTHONWARNINGS && SKIP=check-added-large-files pre-commit run --all && chmod -R 777 /tmp/pre-commit"
 
   build:
     strategy:
@@ -137,10 +138,11 @@ jobs:
     - uses: actions/checkout@v4
       with:
         submodules: true
+    - uses: ./.github/workflows/setup-pre-commit
     - uses: ./.github/workflows/setup-with-retry
     - name: pre-commit
       timeout-minutes: 4
-      run: ${{ env.RUN }} "unset PYTHONWARNINGS && pre-commit run --all"
+      run: ${{ env.RUN }} "unset PYTHONWARNINGS && pre-commit run --all && chmod -R 777 /tmp/pre-commit"
 
   valgrind:
     name: valgrind

.github/workflows/setup-pre-commit/action.yaml

@@ -0,0 +1,12 @@
+name: 'set up pre-commit environment'
+
+runs:
+  using: "composite"
+  steps:
+    - uses: ./.github/workflows/auto-cache
+      with: 
+        path: .ci_cache/pre-commit
+        key: pre-commit-${{ hashFiles('**/.pre-commit-config.yaml') }}
+        restore-keys: |
+          pre-commit-
+        save: ${{ github.ref == 'refs/heads/master' && github.event_name != 'pull_request' && github.repository == 'commaai/openpilot' }}