[PATCH v4 3/3] python_mesonpy: New class

["Zoltán Böszörményi" <zboszor@gmail.com>]

This is a new PEP517 compatible build class for python modules
that use pyproject.toml and this:

[build-system]
build-backend = 'mesonpy'

The new class uses python3-meson-python-native.

Signed-off-by: Zoltán Böszörményi <zboszor@gmail.com>
---
 meta/classes-recipe/python_mesonpy.bbclass | 54 ++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 meta/classes-recipe/python_mesonpy.bbclass

diff --git a/meta/classes-recipe/python_mesonpy.bbclass b/meta/classes-recipe/python_mesonpy.bbclass
new file mode 100644
index 0000000000..1da8b005ab
--- /dev/null
+++ b/meta/classes-recipe/python_mesonpy.bbclass
@@ -0,0 +1,54 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+inherit meson setuptools3-base python3targetconfig python_pep517
+
+# Filter out meson_do_qa_configure from do_configure[postfuncs]
+DOCONFIGUREPOSTFUNCS := "${@d.getVarFlag('do_configure', 'postfuncs')}"
+DOCONFIGUREPOSTFUNCS:remove = "meson_do_qa_configure"
+do_configure[postfuncs] := "${@'' if d.getVar('DOCONFIGUREPOSTFUNCS') is None else d.getVar('DOCONFIGUREPOSTFUNCS') }"
+
+# This prevents the meson error:
+# ERROR: Got argument buildtype as both -Dbuildtype and --buildtype. Pick one.
+MESONOPTS:remove = "--buildtype ${MESON_BUILDTYPE}"
+
+CONFIGURE_FILES = "pyproject.toml"
+
+DEPENDS += "python3-wheel-native python3-meson-python-native"
+
+def mesonpy_get_args(d):
+    vars = ['MESONOPTS', 'MESON_CROSS_FILE', 'EXTRA_OEMESON']
+    varlist = []
+    for var in vars:
+        value = d.getVar(var)
+        vallist = value.split()
+        for elem in vallist:
+            varlist.append("-Csetup-args=" + elem)
+    return ' '.join(varlist)
+
+PEP517_BUILD_OPTS = "-Cbuilddir='${B}' ${@mesonpy_get_args(d)}"
+
+# Python pyx -> c -> so build leaves absolute build paths in the code
+INSANE_SKIP:${PN} += "buildpaths"
+INSANE_SKIP:${PN}-src += "buildpaths"
+
+python_mesonpy_do_configure () {
+    python_pep517_do_configure
+}
+
+python_mesonpy_do_compile () {
+    python_pep517_do_compile
+}
+
+python_mesonpy_do_install () {
+    python_pep517_do_install
+}
+
+python_mesonpy_do_bootstrap_install () {
+    python_pep517_do_bootstrap_install
+}
+
+EXPORT_FUNCTIONS do_configure do_compile do_install
-- 
2.40.1