Added pylint test

.github/workflows/build_wheels_linux.yml

@@ -102,7 +102,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v2
       with:
-        submodules: false
+        submodules: true
         fetch-depth: 0
 
     - name: Setup Environment variables

.github/workflows/build_wheels_macos.yml

@@ -137,6 +137,7 @@ jobs:
       CONFIG_PATH: travis_config.sh
       PLAT: x86_64
       OPENCV_TEST_DATA_PATH: ${{ github.workspace }}/opencv_extra/testdata
+      PYLINT_TEST_FILE: ${{ github.workspace }}/opencv/samples/python/squares.py
 
     steps:
     - name: Checkout
@@ -171,6 +172,12 @@ jobs:
         cd ${{ github.workspace }}/opencv
         python modules/python/test/test.py -v --repo .
 
+    - name: Pylint test
+      run: |
+        python -m pip install pylint==2.12.2
+        cd ${{ github.workspace }}/tests
+        python -m pylint $PYLINT_TEST_FILE
+
   test_release_opencv_python:
     if: github.event_name == 'release' && github.event.release.prerelease
     needs: [build, test]

.github/workflows/build_wheels_macos_m1.yml

@@ -81,6 +81,7 @@ jobs:
 
     env:
       OPENCV_TEST_DATA_PATH: ${{ github.workspace }}/opencv_extra/testdata
+      PYLINT_TEST_FILE: ${{ github.workspace }}/opencv/samples/python/squares.py
 
     steps:
     - name: Checkout
@@ -106,6 +107,12 @@ jobs:
         cd ${{ github.workspace }}/opencv
         arch -arm64 python${{ matrix.python-version }} modules/python/test/test.py -v --repo .
 
+    - name: Pylint test
+      run: |
+        arch -arm64 python${{ matrix.python-version }} -m pip install pylint==2.12.2
+        cd ${{ github.workspace }}/tests
+        arch -arm64 python${{ matrix.python-version }} -m pylint $PYLINT_TEST_FILE
+
   test_release_opencv_python:
     if: github.event_name == 'release' && github.event.release.prerelease
     needs: [build, test]

.github/workflows/build_wheels_windows.yml

@@ -96,6 +96,7 @@ jobs:
     env:
       ACTIONS_ALLOW_UNSECURE_COMMANDS: true
       OPENCV_TEST_DATA_PATH: ${{ github.workspace }}\opencv_extra\testdata
+      PYLINT_TEST_FILE: ${{ github.workspace }}\opencv\samples\python\squares.py
 
     steps:
     - name: Checkout
@@ -130,6 +131,13 @@ jobs:
         python modules\python\test\test.py -v --repo .
       shell: cmd
 
+    - name: Pylint test
+      run: |
+        python -m pip install pylint==2.12.2
+        cd ${{ github.workspace }}\tests
+        python -m pylint $PYLINT_TEST_FILE
+      shell: cmd
+
   test_release_opencv_python:
     if: github.event_name == 'release' && github.event.release.prerelease
     needs: [build-windows-x86_64, test]

tests/pylintrc

@@ -0,0 +1,12 @@
+# Source: opencv/platforms/scripts/pylintrc
+
+[MESSAGES CONTROL]
+
+# Disable all to choose the Tests one by one
+disable=all
+
+# Tests
+enable=bad-indentation,       # Used when an unexpected number of indentation’s tabulations or spaces has been found.
+       mixed-indentation,     # Used when there are some mixed tabs and spaces in a module.
+       unnecessary-semicolon, # Used when a statement is ended by a semi-colon (”;”), which isn’t necessary.
+       unused-variable        # Used when a variable is defined but not used. (Use _var to ignore var).

travis_config.sh

@@ -141,37 +141,37 @@ function run_tests {
 
     PYTHON=python$PYTHON_VERSION
 
-    if [ -n "$IS_OSX" ]; then
-      echo "Running for OS X"
-
-      cd ../tests
-      $PYTHON get_build_info.py
-
-      cd ../opencv/
-      export OPENCV_TEST_DATA_PATH=../opencv_extra/testdata
-    else
-      echo "Running for linux"
-
-      if [ $PYTHON == "python3.6" ]; then
-        $PYTHON -m pip install -U numpy==1.19.4
-      fi
-      cd /io/tests
-      $PYTHON get_build_info.py
+    echo "Running for linux"
 
-      cd /io/opencv
-      export OPENCV_TEST_DATA_PATH=/io/opencv_extra/testdata
+    if [ $PYTHON == "python3.6" ]; then
+      $PYTHON -m pip install -U numpy==1.19.4
     fi
+    cd /io/tests
+    $PYTHON get_build_info.py
+
+    cd /io/opencv
+    export OPENCV_TEST_DATA_PATH=/io/opencv_extra/testdata
 
     test_wheels
+    pylint_test
 }
 
 function test_wheels {
 
-    echo "Starting tests..."
+    echo "Starting OpenCV tests..."
 
     #Test package
     $PYTHON modules/python/test/test.py -v --repo .
 }
 
+function pylint_test {
+
+    echo "Starting Pylint tests..."
+
+    $PYTHON -m pip install pylint==2.12.2
+    cd /io/tests
+    $PYTHON -m pylint /io/opencv/samples/python/squares.py
+}
+
 export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
 set -x