ci: build cp27 with older manylinux

Author: majorgreys

scripts/build-dist-cp27

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+set -ex
+
+# Determine where "../dist" is
+DIST_DIR="${1:-dist}"
+if which gmktemp > /dev/null 2>&1
+then
+    # For Darwin
+    MKTEMP=gmktemp
+else
+    MKTEMP=mktemp
+fi
+BUILD_DIR=$($MKTEMP --directory --tmpdir=$PWD build-dist-tmp-XXXXXX)
+mkdir -p "$BUILD_DIR"
+
+build_script=$(cat <<'EOF'
+set -ex
+
+# This is used for pattern matching and excluding Python versions
+shopt -s extglob
+
+# Build linux wheels from the source distribution we created
+for PYBIN in /opt/python/*cp27*/bin;
+do
+  "${PYBIN}/pip" wheel --no-deps /dd-trace-py/*.tar.gz -w /dd-trace-py
+done
+
+# Build manylinux wheels from the linux wheels we just created
+for whl in /dd-trace-py/*-linux_${ARCH}.whl;
+do
+  auditwheel repair "${whl}" -w /dd-trace-py
+
+  # Remove linux wheel since we only want the manylinux wheels
+  rm "${whl}"
+done
+EOF
+)
+
+# First build a source distribution for our package
+python setup.py sdist --dist-dir "$BUILD_DIR"
+
+# Use last tagged release of manylinux that included support for CPython 2.7
+MANYLINUX_IMAGE_X86_64=quay.io/pypa/manylinux2010_x86_64:2021-02-06-3d322a5
+# Build x86_64 linux and manylinux wheels
+docker pull ${MANYLINUX_IMAGE_X86_64}
+docker run -it --rm -v "${BUILD_DIR}:/dd-trace-py" -e "ARCH=x86_64" ${MANYLINUX_IMAGE_X86_64} /bin/bash -c "${build_script}"
+
+MANYLINUX_IMAGE_I686=quay.io/pypa/manylinux2010_i686:2021-02-06-3d322a5
+# Build i686 linux and manylinux wheels
+docker pull ${MANYLINUX_IMAGE_I686}
+docker run -it --rm -v "${BUILD_DIR}:/dd-trace-py" -e "ARCH=i686" ${MANYLINUX_IMAGE_I686} linux32 /bin/bash -c "${build_script}"
+
+test -e "$DIST_DIR" || mkdir "$DIST_DIR"
+mv "$BUILD_DIR"/* "$DIST_DIR"
+rmdir "$BUILD_DIR"

scripts/mkwheelhouse

@@ -17,6 +17,11 @@ def build_wheels():
         'scripts/build-dist', build_dir,
     ]
     mkwheelhouse.spawn(args)
+    # Need to separately build cp27 wheels with an older release of manylinux2010
+    args = [
+        'scripts/build-dist-cp27', build_dir,
+    ]
+    mkwheelhouse.spawn(args)
     return build_dir