[ci] Replace pre-commit with prek (#18029)

.github/workflows/ci.yml

@@ -65,7 +65,7 @@ jobs:
           python -m venv venv
           . venv/bin/activate
           python --version
-          uv pip install -r requirements.txt -r requirements_dev.txt -r requirements_test.txt pre-commit
+          uv pip install -r requirements.txt -r requirements_dev.txt -r requirements_test.txt
           uv pip install -e .
 
   determine-jobs:
@@ -208,69 +208,34 @@ jobs:
         run: script/ci-suggest-changes
         if: always()
 
-  pre-commit-ci-lite:
-    name: pre-commit.ci lite
+  lint-format:
+    name: Check lint and formatting
     runs-on: ubuntu-latest
     needs:
-      - common
       - determine-jobs
     if: github.event_name == 'pull_request' && !startsWith(github.base_ref, 'beta') && !startsWith(github.base_ref, 'release') && needs.determine-jobs.outputs.core-ci == 'true'
     steps:
       - name: Check out code from GitHub
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - name: Restore Python
-        uses: ./.github/actions/restore-python
+      - name: Run prek
+        uses: j178/prek-action@4e14d07f9231acabce116ccfca13b13dd9755ece # v3.0.0
         with:
-          python-version: ${{ env.DEFAULT_PYTHON }}
-          cache-key: ${{ needs.common.outputs.cache-key }}
-      # Inlined from esphome/pre-commit-action with a restore-only cache
-      # step: the pre-commit-seed-cache job owns saving this cache, so
-      # pull request runs never write per-PR copies.
-      - name: Restore pre-commit cache
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: ~/.cache/pre-commit
-          # Must match the key pre-commit-seed-cache saves
-          # yamllint disable-line rule:line-length
-          key: pre-commit-3|${{ env.pythonLocation }}|${{ hashFiles('.pre-commit-config.yaml') }}
-      - name: Run pre-commit
+          # Keep in sync with requirements_test.txt.
+          prek-version: "0.4.11"
+          # This job only runs on pull requests, so nothing ever populates
+          # the cache on dev. Every run would miss and then write a per-pull
+          # request copy, which is what the old seed-cache job existed to
+          # avoid. Building the hooks from scratch takes seconds, so skip it.
+          cache: false
         env:
-          SKIP: pylint,ci-custom
-        run: |
-          python -m pip install pre-commit
-          pre-commit run --show-diff-on-failure --color=always --all-files
+          PREK_SKIP: pylint,ci-custom
+      # Pushes any fixes the hooks made back to the pull request. This step
+      # must keep its default name: the GitHub App that performs the push
+      # locates the workflow run by that name.
       - uses: pre-commit-ci/lite-action@5d6cc0eb514c891a40562a58a8e71576c5c7fb43 # v1.1.0
         if: always()
-
-  pre-commit-seed-cache:
-    name: Seed pre-commit cache
-    runs-on: ubuntu-latest
-    needs:
-      - common
-    # Saves a dev-scoped pre-commit cache that pull request runs can
-    # restore, since pre-commit.ci lite itself never runs on dev pushes.
-    if: github.event_name == 'push' && github.ref == 'refs/heads/dev'
-    steps:
-      - name: Check out code from GitHub
-        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - name: Restore Python
-        uses: ./.github/actions/restore-python
         with:
-          python-version: ${{ env.DEFAULT_PYTHON }}
-          cache-key: ${{ needs.common.outputs.cache-key }}
-      - name: Cache pre-commit environments
-        id: cache-pre-commit
-        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: ~/.cache/pre-commit
-          # Must match the restore key in pre-commit-ci-lite
-          # yamllint disable-line rule:line-length
-          key: pre-commit-3|${{ env.pythonLocation }}|${{ hashFiles('.pre-commit-config.yaml') }}
-      - name: Install pre-commit hook environments
-        if: steps.cache-pre-commit.outputs.cache-hit != 'true'
-        run: |
-          python -m pip install pre-commit
-          pre-commit install-hooks
+          msg: apply automatic formatting fixes
 
   pytest:
     name: Run pytest
@@ -1456,16 +1421,15 @@ jobs:
   ci-status:
     name: CI Status
     runs-on: ubuntu-24.04
-    # Listed in the same order the jobs are defined above. Two jobs are
+    # Listed in the same order the jobs are defined above. One job is
     # deliberately left out: "benchmarks" reports through CodSpeed rather than
-    # this check, and "pre-commit-seed-cache" only populates a cache on pushes
-    # to dev.
+    # this check.
     needs:
       - common
       - determine-jobs
       - ci-custom
       - pylint
-      - pre-commit-ci-lite
+      - lint-format
       - pytest
       - codecov-empty-upload
       - integration-tests

.github/workflows/sync-device-classes.yml

@@ -44,7 +44,7 @@ jobs:
       - name: Set up uv
         # An order of magnitude faster than pip on cold boots, with its
         # own wheel cache. ``--system`` (below) installs into the
-        # setup-python interpreter so subsequent ``pre-commit`` /
+        # setup-python interpreter so subsequent ``prek`` /
         # ``script/run-in-env.py`` steps find the deps without a
         # ``uv run`` prefix.
         uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
@@ -58,19 +58,19 @@ jobs:
       - name: Install Home Assistant
         run: |
           uv pip install --system -e lib/home-assistant
-          uv pip install --system -r requirements.txt -r requirements_test.txt pre-commit
+          uv pip install --system -r requirements.txt -r requirements_test.txt
 
       - name: Sync
         run: |
           python ./script/sync-device_class.py
 
-      - name: Apply pre-commit auto-fixes
+      - name: Apply prek auto-fixes
         # First pass: let formatters (ruff, end-of-file-fixer, etc.) modify
-        # files. pre-commit exits non-zero whenever a hook touches anything,
+        # files. prek exits non-zero whenever a hook touches anything,
         # which would otherwise abort the workflow before the auto-fixes
         # can flow into the sync PR.
         #
-        # SKIP:
+        # PREK_SKIP:
         #   - no-commit-to-branch is a local guard against committing on
         #     dev/release/beta; CI runs on dev by definition, and
         #     peter-evans/create-pull-request creates the branch itself.
@@ -79,18 +79,18 @@ jobs:
         #     the runtime deps (HA + requirements*.txt); main CI already
         #     gates pylint on real PRs.
         env:
-          SKIP: pylint,no-commit-to-branch
-        run: python script/run-in-env.py pre-commit run --all-files || true
+          PREK_SKIP: pylint,no-commit-to-branch
+        run: python script/run-in-env.py prek run --all-files || true
 
-      - name: Verify pre-commit clean
+      - name: Verify prek clean
         # Second pass: re-run all hooks against the now-fixed tree.
         # Auto-fixers exit 0 (nothing to change); any remaining failure
         # from a check-only hook (flake8 / yamllint / ci-custom) is a
-        # real issue and fails the workflow loudly. Same SKIP list as
+        # real issue and fails the workflow loudly. Same PREK_SKIP list as
         # above for the same reasons.
         env:
-          SKIP: pylint,no-commit-to-branch
-        run: python script/run-in-env.py pre-commit run --all-files
+          PREK_SKIP: pylint,no-commit-to-branch
+        run: python script/run-in-env.py prek run --all-files
 
       - name: Commit changes
         uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1 # v8.1.1