CI Adds manylinux1 to building wheels (scikit-learn#19235)

Co-authored-by: Olivier Grisel <[email protected]>

Author: thomasjpfan

Diff for: .github/workflows/wheels.yml

@@ -38,7 +38,7 @@ jobs:
 
   # Build the wheels for Linux, Windows and macOS for Python 3.6 and newer
   build_wheels:
-    name: Build wheel for cp${{ matrix.python }}-${{ matrix.platform_id }}
+    name: Build wheel for cp${{ matrix.python }}-${{ matrix.platform_id }}-${{ matrix.manylinux_image }}
     runs-on: ${{ matrix.os }}
     needs: check_build_trigger
     if: needs.check_build_trigger.outputs.build
@@ -50,6 +50,7 @@ jobs:
         os: [windows-latest, ubuntu-latest, macos-latest]
         python: [36, 37, 38, 39]
         bitness: [32, 64]
+        manylinux_image: [manylinux1, manylinux2010]
         include:
           # Run 32 and 64 bit version in parallel for Linux and Windows
           - os: windows-latest
@@ -70,6 +71,12 @@ jobs:
         exclude:
           - os: macos-latest
             bitness: 32
+          # Remove manylinux1 from the windows and osx build matrix since
+          # manylinux_image is not used for these platforms
+          - os: windows-latest
+            manylinux_image: manylinux1
+          - os: macos-latest
+            manylinux_image: manylinux1
 
     steps:
       - name: Checkout scikit-learn
@@ -88,6 +95,8 @@ jobs:
                             SKLEARN_BUILD_PARALLEL=3
                             MACOSX_DEPLOYMENT_TARGET=10.13
           CIBW_BUILD: cp${{ matrix.python }}-${{ matrix.platform_id }}
+          CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.manylinux_image }}
+          CIBW_MANYLINUX_I686_IMAGE: ${{ matrix.manylinux_image }}
           CIBW_REPAIR_WHEEL_COMMAND_WINDOWS: bash build_tools/github/repair_windows_wheels.sh {wheel} {dest_dir} ${{ matrix.bitness }}
           CIBW_BEFORE_TEST_WINDOWS: bash build_tools/github/build_minimal_windows_image.sh ${{ matrix.python }} ${{ matrix.bitness }}
           CIBW_TEST_REQUIRES: pytest pandas threadpoolctl

Diff for: build_tools/github/check_wheels.py

@@ -11,11 +11,11 @@
 build_matrix = wheel_config['jobs']['build_wheels']['strategy']['matrix']
 n_python_versions = len(build_matrix['python'])
 
-# For each python version we have: 5 wheels
+# For each python version we have: 7 wheels
 # 1 osx wheel (x86_64)
-# 2 linux wheel (i686 + x86_64)
+# 4 linux wheel (i686 + x86_64) * (manylinux1 + manylinux2010)
 # 2 windows wheel (win32 + wind_amd64)
-n_wheels = 5 * n_python_versions
+n_wheels = 7 * n_python_versions
 
 # plus one more for the sdist
 n_wheels += 1