port lint workflows from CircleCI to GHA

.circleci/config.yml.in

@@ -269,61 +269,6 @@ jobs:
             python .circleci/regenerate.py
             git diff --exit-code || (echo ".circleci/config.yml not in sync with config.yml.in! Run .circleci/regenerate.py to update config"; exit 1)
 
-  lint_python_and_config:
-    docker:
-      - image: cimg/python:3.8
-    steps:
-      - checkout
-      - pip_install:
-          args: pre-commit
-          descr: Install lint utilities
-      - run:
-          name: Install pre-commit hooks
-          command: pre-commit install-hooks
-      - run:
-          name: Lint Python code and config files
-          command: pre-commit run --all-files
-      - run:
-          name: Required lint modifications
-          when: on_fail
-          command: git --no-pager diff
-
-  lint_c:
-    docker:
-      - image: cimg/python:3.8
-    steps:
-      - apt_install:
-          args: libtinfo5
-          descr: Install additional system libraries
-      - checkout
-      - run:
-          name: Install lint utilities
-          command: |
-            curl https://oss-clang-format.s3.us-east-2.amazonaws.com/linux64/clang-format-linux64 -o clang-format
-            chmod +x clang-format
-            sudo mv clang-format /opt/clang-format
-      - run:
-          name: Lint C code
-          command: ./.circleci/unittest/linux/scripts/run-clang-format.py -r torchvision/csrc --clang-format-executable /opt/clang-format
-      - run:
-          name: Required lint modifications
-          when: on_fail
-          command: git --no-pager diff
-
-  type_check_python:
-    docker:
-      - image: cimg/python:3.8
-    steps:
-      - checkout
-      - install_torchvision:
-          editable: true
-      - pip_install:
-          args: mypy
-          descr: Install Python type check utilities
-      - run:
-          name: Check Python types statically
-          command: mypy --install-types --non-interactive --config-file mypy.ini
-
   unittest_onnx:
     docker:
       - image: cimg/python:3.8
@@ -996,9 +941,6 @@ workflows:
   lint:
     jobs:
       - circleci_consistency
-      - lint_python_and_config
-      - lint_c
-      - type_check_python
 
   build:
     jobs:

.github/workflows/lint.yml

@@ -0,0 +1,95 @@
+name: Lint
+
+on:
+  pull_request:
+  push:
+    branches:
+      - nightly
+      - main
+      - release/*
+  workflow_dispatch:
+
+jobs:
+  python-source-and-configs:
+    uses: pytorch/test-infra/.github/workflows/linux_job.yml@main
+    with:
+      repository: pytorch/vision
+      script: |
+        set -euo pipefail
+
+        echo '::group::Setup environment'
+        CONDA_PATH=$(which conda)
+        eval "$(${CONDA_PATH} shell.bash hook)"
+        conda create --name ci --quiet --yes python=3.8 pip
+        conda activate ci
+        echo '::endgroup::'
+
+        echo '::group::Install lint tools'
+        pip install --progress-bar=off pre-commit
+        echo '::endgroup::'
+
+        echo '::group::Lint Python source and configs'
+        set +e
+        pre-commit run --all-files
+
+        if [ $? -ne 0 ]; then
+          git --no-pager diff
+          exit 1
+        fi
+        echo '::endgroup::'
+
+  c-source:
+    uses: pytorch/test-infra/.github/workflows/linux_job.yml@main
+    with:
+      repository: pytorch/vision
+      script: |
+        set -euo pipefail
+
+        echo '::group::Setup environment'
+        CONDA_PATH=$(which conda)
+        eval "$(${CONDA_PATH} shell.bash hook)"
+        # clang-format needs some shared libraries that conflict with the system ones. Thus, we install them from conda
+        # and prepend the libraries to linker path to prioritize them
+        conda create --name ci --quiet --yes python=3.8 ncurses=5 libgcc
+        conda activate ci
+        export LD_LIBRARY_PATH="${CONDA_PREFIX}/lib:${LD_LIBRARY_PATH}"
+        echo '::endgroup::'
+
+        echo '::group::Install lint tools'
+        curl https://oss-clang-format.s3.us-east-2.amazonaws.com/linux64/clang-format-linux64 -o ./clang-format
+        chmod +x ./clang-format
+        echo '::endgroup::'
+
+        echo '::group::Lint C source'
+        set +e
+        ./.circleci/unittest/linux/scripts/run-clang-format.py -r torchvision/csrc --clang-format-executable ./clang-format
+
+        if [ $? -ne 0 ]; then
+          git --no-pager diff
+          exit 1
+        fi
+        echo '::endgroup::'
+
+
+  python-types:
+    uses: pytorch/test-infra/.github/workflows/linux_job.yml@main
+    with:
+      repository: pytorch/vision
+      script: |
+        set -euo pipefail
+
+        export PYTHON_VERSION=3.8
+        export GPU_ARCH_TYPE=cpu
+        ./.github/scripts/setup-env.sh
+
+        CONDA_PATH=$(which conda)
+        eval "$(${CONDA_PATH} shell.bash hook)"
+        conda activate ci
+
+        echo '::group::Install lint tools'
+        pip install --progress-bar=off mypy
+        echo '::endgroup::'
+
+        echo '::group::Lint Python types'
+        mypy --install-types --non-interactive --config-file mypy.ini
+        echo '::endgroup::'