Add black to pre-commit and Add lint CI job (#39)

Summary:
It works: https://github.com/pytorch-labs/torchcodec/actions/runs/9551252976/job/26325153079?pr=39

Pull Request resolved: #39

Reviewed By: ahmadsharif1

Differential Revision: D58676975

Pulled By: NicolasHug

fbshipit-source-id: b0a0b6ccabff1ebaf7a9e6f3fa5cc1beed9fdbb2

.github/workflows/lint.yaml

@@ -0,0 +1,40 @@
+name: Lint
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+concurrency:
+  group: unit-test${{ github.workflow }}-${{ github.ref == 'refs/heads/main' && github.run_number || github.ref }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash -l -eo pipefail {0}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ['3.12']
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@v3
+      - name: Setup conda env
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+          auto-update-conda: true
+          miniconda-version: "latest"
+          activate-environment: test
+          python-version: ${{ matrix.python-version }}
+      - name: Update pip
+        run: python -m pip install --upgrade pip
+      - name: Install pre-commit
+        run: |
+          python -m pip install pre-commit
+      - name: Run pre-commit checks
+        run: |
+          pre-commit run --all-files

.pre-commit-config.yaml

@@ -16,13 +16,13 @@ repos:
       - id: check-added-large-files
         args: ['--maxkb=1000']
 
-  # - repo: https://github.com/omnilib/ufmt
-  #   rev: v2.3.0
-  #   hooks:
-  #   -   id: ufmt
-  #       additional_dependencies:
-  #         - black == 22.12.0
-  #         - usort == 1.0.5
+  - repo: https://github.com/omnilib/ufmt
+    rev: v2.6.0
+    hooks:
+    -   id: ufmt
+        additional_dependencies:
+          - black == 24.4.2
+          - usort == 1.0.5
 
   - repo: https://github.com/PyCQA/flake8
     rev: 7.1.0