rework cffi build

python-cffi/_build_cffi.py

@@ -16,6 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
+import sys
 
 from cffi import FFI
 ffibuilder = FFI()
@@ -51,6 +52,9 @@
     NetplanBackend netplan_state_get_backend(const NetplanState* np_state);
 """)
 
+cffi_inc = os.getenv('CFFI_INC', sys.argv[1])
+cffi_lib = os.getenv('CFFI_LIB', sys.argv[2])
+
 # set_source() gives the name of the python extension module to
 # produce, and some C source code as a string.  This C code needs
 # to make the declarated functions, types and globals available,
@@ -62,9 +66,10 @@
     #include "parse.h"
     #include "parse-nm.h"
 """,
-    include_dirs=[os.getenv('CFFI_INC')],
-    library_dirs=[os.getenv('CFFI_LIB')],
+    include_dirs=[cffi_inc],
+    library_dirs=[cffi_lib],
     libraries=['netplan', 'glib-2.0'])   # library name, for the linker
 
 if __name__ == "__main__":
-    ffibuilder.compile(verbose=False)
+    #ffibuilder.compile(verbose=False)
+    ffibuilder.distutils_extension('.')

python-cffi/meson.build

@@ -3,17 +3,31 @@ python = pymod.find_installation(
     'python3',
     modules: ['cffi']
 )
+python_dep = python.dependency(required: true)
 
-#https://mesonbuild.com/FAQ.html#but-i-really-want-to-use-wildcards
-out = run_command(
-    'sh', '-c', 'python3 _build_cffi.py && find -name _libnetplan*.so',
-    env: [
-        'CFFI_INC=' + join_paths(meson.project_source_root(), 'include'),
-        'CFFI_LIB=' + join_paths(meson.current_build_dir(), 'src'),
+cffi_srcs = configure_file(
+    command: [
+        python,
+        files('_build_cffi.py'),
+        join_paths(meson.project_source_root(), 'include'),
+        join_paths(meson.current_build_dir(), 'src'),
     ],
-    check: true,
+    output: '_libnetplan0.c',
+)
+
+cffi_pyext = python.extension_module(
+    '_libnetplan0',
+    link_whole: static_library(
+        '_libnetplan0',
+        cffi_srcs,
+        dependencies: [python_dep, glib],
+        include_directories: [inc],
+    ),
+    dependencies: [python_dep],
+    include_directories: [include_directories(join_paths('..', 'include'))],
+    subdir: 'netplan',
+    install: true,
 )
-cffi_so = out.stdout().strip().split('\n')
 
 bindings_sources = '''
   __init__.py
@@ -22,5 +36,5 @@ bindings_sources = '''
 '''.split()
 
 bindings = python.install_sources(
-    [bindings_sources, cffi_so],
+    [bindings_sources],
     subdir: 'netplan')