flit_core.bbclass: add helper for newer python packaging

Some python packages now use pyproject.toml and declare
flit_core.buildapi as the build engine

Use pip_install_wheel class to install.

[YOCTO #14638]

Signed-off-by: Tim Orling <tim.orling@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/flit_core.bbclass b/meta/classes/flit_core.bbclass
new file mode 100644 (file)
index 0000000..0f2eec8
--- /dev/null
+++ b/meta/classes/flit_core.bbclass
@@ -0,0 +1,16 @@
+inherit pip_install_wheel python3native python3-dir
+
+DEPENDS += "python3 python3-flit-core-native python3-pip-native"
+
+do_configure () {
+    mkdir -p ${S}/dist
+    cat > ${S}/build-it.py << EOF
+from flit_core import buildapi
+buildapi.build_wheel('./dist')
+EOF
+}
+
+do_compile () {
+    ${STAGING_BINDIR_NATIVE}/${PYTHON_PN}-native/${PYTHON_PN} ${S}/build-it.py
+}
+