Add prettier to the pre-commit configuration

Also apply prettier

.github/CONTRIBUTING.md

@@ -1 +1,2 @@
-Please read the [contribute doc](https://github.com/PyCQA/pylint/blob/master/doc/development_guide/contribute.rst).
+Please read the
+[contribute doc](https://github.com/PyCQA/pylint/blob/master/doc/development_guide/contribute.rst).

.github/ISSUE_TEMPLATE/1_Bug_report.md

@@ -1,7 +1,6 @@
 ---
 name: Bug report
 about: Report a bug in pylint
-
 ---
 
 <!--
@@ -36,6 +35,7 @@ module\
 -->
 
 ### Current behavior
+
 <!--
 Result of `pylint a.py`:
 ```
@@ -45,10 +45,10 @@ Result of `pylint a.py`:
 
 ### Expected behavior
 
-
 ### pylint --version output
 
 Result of `pylint --version` output:
+
 ```
 
 ```

.github/ISSUE_TEMPLATE/2_Feature_request.md

@@ -1,7 +1,6 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-
 ---
 
 <!--
@@ -12,10 +11,13 @@ about: Suggest an idea for this project
 -->
 
 ### Is your feature request related to a problem? Please describe
+
 A clear and concise description of what the problem is.
 
 ### Describe the solution you'd like
+
 A clear and concise description of what you want to happen.
 
 ### Additional context
+
 Add any other context about the feature request here.

.github/ISSUE_TEMPLATE/3_Question.md

@@ -1,7 +1,8 @@
 ---
 name: Support question
-about: Questions about pylint that are not covered in the documentation (https://pylint.pycqa.org/en/latest/)
-
+about:
+  Questions about pylint that are not covered in the documentation
+  (https://pylint.pycqa.org/en/latest/)
 ---
 
 ## Question

.github/PULL_REQUEST_TEMPLATE.md

@@ -12,20 +12,22 @@ https://github.com/PyCQA/pylint/blob/master/doc/development_guide/contribute.rst
 
 - [ ] Add yourself to CONTRIBUTORS if you are a new contributor.
 - [ ] Add a ChangeLog entry describing what your PR does.
-- [ ] If it's a new feature or an important bug fix, add a What's New entry in `doc/whatsnew/<current release.rst>`.
+- [ ] If it's a new feature or an important bug fix, add a What's New entry in
+      `doc/whatsnew/<current release.rst>`.
 - [ ] Write a good description on what the PR does.
 
 ## Description
 
-
 ## Type of Changes
+
 <!-- Leave the corresponding lines for the applicable type of change: -->
-|   | Type |
-| ------------- | ------------- |
-| ✓  | :bug: Bug fix  |
-| ✓  | :sparkles: New feature |
-| ✓  | :hammer: Refactoring  |
-| ✓  | :scroll: Docs |
+
+|     | Type                   |
+| --- | ---------------------- |
+| ✓   | :bug: Bug fix          |
+| ✓   | :sparkles: New feature |
+| ✓   | :hammer: Refactoring   |
+| ✓   | :scroll: Docs          |
 
 ## Related Issue
 

.github/workflows/ci.yaml

@@ -12,7 +12,6 @@ env:
   DEFAULT_PYTHON: 3.6
   PRE_COMMIT_CACHE: ~/.cache/pre-commit
 
-
 jobs:
   prepare-base:
     name: Prepare base dependencies
@@ -88,7 +87,8 @@ jobs:
         uses: actions/[email protected]
         with:
           path: venv
-          key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
+          key:
+            ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
             needs.prepare-base.outputs.python-key }}
       - name: Fail job if Python cache restore failed
         if: steps.cache-venv.outputs.cache-hit != 'true'
@@ -129,7 +129,8 @@ jobs:
         uses: actions/[email protected]
         with:
           path: venv
-          key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
+          key:
+            ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
             needs.prepare-base.outputs.python-key }}
       - name: Fail job if Python cache restore failed
         if: steps.cache-venv.outputs.cache-hit != 'true'
@@ -202,7 +203,8 @@ jobs:
         uses: actions/[email protected]
         with:
           path: venv
-          key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
+          key:
+            ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
             needs.prepare-tests-linux.outputs.python-key }}
       - name: Fail job if Python cache restore failed
         if: steps.cache-venv.outputs.cache-hit != 'true'
@@ -241,7 +243,8 @@ jobs:
         uses: actions/[email protected]
         with:
           path: venv
-          key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
+          key:
+            ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
             needs.prepare-tests-linux.outputs.python-key }}
       - name: Fail job if Python cache restore failed
         if: steps.cache-venv.outputs.cache-hit != 'true'
@@ -283,7 +286,8 @@ jobs:
         uses: actions/[email protected]
         with:
           path: venv
-          key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
+          key:
+            ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
             needs.prepare-tests-linux.outputs.python-key }}
       - name: Fail job if Python cache restore failed
         if: steps.cache-venv.outputs.cache-hit != 'true'
@@ -307,11 +311,11 @@ jobs:
       - name: Upload benchmark artifact
         uses: actions/[email protected]
         with:
-          name: benchmark-${{ runner.os }}-${{ matrix.python-version }}_${{
+          name:
+            benchmark-${{ runner.os }}-${{ matrix.python-version }}_${{
             steps.artifact-name-suffix.outputs.datetime }}
           path: .benchmarks/
 
-
   prepare-tests-windows:
     name: Prepare tests for Python ${{ matrix.python-version }} (Windows)
     runs-on: windows-latest
@@ -377,7 +381,8 @@ jobs:
         uses: actions/[email protected]
         with:
           path: venv
-          key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
+          key:
+            ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
             needs.prepare-tests-windows.outputs.python-key }}
       - name: Fail job if Python cache restore failed
         if: steps.cache-venv.outputs.cache-hit != 'true'
@@ -389,7 +394,6 @@ jobs:
           . venv\\Scripts\\activate
           pytest --benchmark-disable tests/
 
-
   prepare-tests-pypy:
     name: Prepare tests for Python ${{ matrix.python-version }}
     runs-on: ubuntu-latest
@@ -451,7 +455,8 @@ jobs:
         uses: actions/[email protected]
         with:
           path: venv
-          key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
+          key:
+            ${{ runner.os }}-${{ steps.python.outputs.python-version }}-${{
             needs.prepare-tests-pypy.outputs.python-key }}
       - name: Fail job if Python cache restore failed
         if: steps.cache-venv.outputs.cache-hit != 'true'

.pre-commit-config.yaml

@@ -1,71 +1,77 @@
 repos:
--   repo: https://github.com/pre-commit/pre-commit-hooks
+  - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v3.4.0
     hooks:
-    -   id: trailing-whitespace
+      - id: trailing-whitespace
         exclude: "tests/functional/t/trailing_whitespaces.py"
-    -   id: end-of-file-fixer
+      - id: end-of-file-fixer
         exclude: "tests/functional/m/missing/missing_final_newline.py|tests/functional/t/trailing_newlines.py"
--   repo: https://github.com/asottile/setup-cfg-fmt
+  - repo: https://github.com/asottile/setup-cfg-fmt
     rev: v1.17.0
     hooks:
-    -   id: setup-cfg-fmt
--   repo: https://github.com/myint/autoflake
+      - id: setup-cfg-fmt
+  - repo: https://github.com/myint/autoflake
     rev: v1.4
     hooks:
-    -   id: autoflake
+      - id: autoflake
         exclude: &fixtures tests/functional/|tests/input|tests/extensions/data|tests/regrtest_data/|tests/data/
         args:
-            - --in-place
-            - --remove-all-unused-imports
-            - --expand-star-imports
-            - --remove-duplicate-keys
-            - --remove-unused-variables
--   repo: https://github.com/asottile/pyupgrade
+          - --in-place
+          - --remove-all-unused-imports
+          - --expand-star-imports
+          - --remove-duplicate-keys
+          - --remove-unused-variables
+  - repo: https://github.com/asottile/pyupgrade
     rev: v2.11.0
     hooks:
-    -   id: pyupgrade
+      - id: pyupgrade
         args: [--py36-plus]
         exclude: *fixtures
--   repo: https://github.com/PyCQA/isort
+  - repo: https://github.com/PyCQA/isort
     rev: 5.8.0
     hooks:
-    -   id: isort
--   repo: https://github.com/ambv/black
+      - id: isort
+  - repo: https://github.com/ambv/black
     rev: 20.8b1
     hooks:
-    - id: black
-      args: [--safe, --quiet]
-      exclude: *fixtures
--   repo: https://github.com/Pierre-Sassoulas/black-disable-checker/
+      - id: black
+        args: [--safe, --quiet]
+        exclude: *fixtures
+  - repo: https://github.com/Pierre-Sassoulas/black-disable-checker/
     rev: 1.0.0
     hooks:
-    - id: black-disable-checker
--   repo: https://gitlab.com/pycqa/flake8
+      - id: black-disable-checker
+  - repo: https://gitlab.com/pycqa/flake8
     rev: 3.9.0
     hooks:
-    -   id: flake8
+      - id: flake8
         exclude: *fixtures
--   repo: local
+  - repo: local
     hooks:
-    -   id: pylint
+      - id: pylint
         name: pylint
         entry: pylint
         language: system
         types: [python]
-        args: ["-rn", "-sn", "--rcfile=pylintrc", "--load-plugins=pylint.extensions.docparams"]
+        args:
+          [
+            "-rn",
+            "-sn",
+            "--rcfile=pylintrc",
+            "--load-plugins=pylint.extensions.docparams",
+          ]
         # disabled plugins: pylint.extensions.mccabe
         exclude: tests/functional/|tests/input|tests/extensions/data|tests/regrtest_data/|tests/data/|doc/
-    -   id: fix-documentation
+      - id: fix-documentation
         name: Fix documentation
         entry: python3 -m script.fix_documentation
         language: system
         types: [text]
         files: ^(ChangeLog|doc/whatsnew/\d+\.\d+\.rst)
--   repo: https://github.com/pre-commit/mirrors-mypy
+  - repo: https://github.com/pre-commit/mirrors-mypy
     rev: v0.812
     hooks:
-    -   id: mypy
+      - id: mypy
         name: mypy
         entry: mypy
         language: python
@@ -74,3 +80,8 @@ repos:
         require_serial: true
         additional_dependencies: []
         exclude: tests/functional/|tests/input|tests/extensions/data|tests/regrtest_data/|tests/data/|doc/|bin/
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v2.2.1
+    hooks:
+      - id: prettier
+        args: [--prose-wrap=always, --print-width=88]

.pre-commit-hooks.yaml

@@ -1,6 +1,6 @@
--   id: pylint
-    name: pylint
-    entry: pylint
-    language: python
-    types: [python]
-    require_serial: true
+- id: pylint
+  name: pylint
+  entry: pylint
+  language: python
+  types: [python]
+  require_serial: true

.readthedocs.yaml

@@ -3,9 +3,9 @@
 version: 2
 
 sphinx:
-   configuration: doc/conf.py
+  configuration: doc/conf.py
 
 python:
-   version: 3.7
-   install:
-   - requirements: doc/requirements.txt
+  version: 3.7
+  install:
+    - requirements: doc/requirements.txt

.travis.yml

@@ -1,26 +1,26 @@
 language: python
 stages:
-- tests-cpython
+  - tests-cpython
 jobs:
   include:
-  - stage: tests-cpython
-    python: 3.6
-    env: TOXENV=py36
+    - stage: tests-cpython
+      python: 3.6
+      env: TOXENV=py36
 before_install:
-- python --version
-- uname -a
-- lsb_release -a
+  - python --version
+  - uname -a
+  - lsb_release -a
 install:
-- pip install -U setuptools
-- pip install tox
-- virtualenv --version
-- pip --version
-- tox --version
+  - pip install -U setuptools
+  - pip install tox
+  - virtualenv --version
+  - pip --version
+  - tox --version
 script:
-- pip install .
+  - pip install .
 after_failure:
-- more .tox/log/* | cat
-- more .tox/*/log/* | cat
+  - more .tox/log/* | cat
+  - more .tox/*/log/* | cat
 notifications:
   email:
     on_success: always

appveyor.yml

@@ -1,4 +1,4 @@
-version: '{branch}-{build}'
+version: "{branch}-{build}"
 build: off
 
 test_script: