ctypes: move directory out of python/grass (#1898)

* move python/grass/ctypes directory out of python/grass and rename it

* reintroduce (now renamed) __init__ and compile ALL files (fixing regression caused by
https://github.com/OSGeo/grass/commit/ca2d28a592064b501c0eb6c4ec648984f386dd42)

.flake8

@@ -243,7 +243,7 @@ exclude =
     # Test output directory
     testreport,
     # Not yet compliant
-    python/grass/ctypes,
+    python/libgrass_interface_generator,
     # No tests checked for now
     testsuite,
 

pyproject.toml

@@ -18,7 +18,7 @@ exclude = '''
         | bin\..*
         | dist\..*
     )/
-    | python/grass/ctypes/
+    | python/libgrass_interface_generator/
     # Bug in Black related to r-string prefix capitalization reformats
     # a line in this file unnecessarily. File is however fully Black-formatted
     # at the time of writing.

python/Makefile

@@ -3,7 +3,8 @@ MODULE_TOPDIR = ..
 include $(MODULE_TOPDIR)/include/Make/Vars.make
 
 SUBDIRS = \
-	grass
+	grass \
+	libgrass_interface_generator
 
 include $(MODULE_TOPDIR)/include/Make/Dir.make
 

python/grass/Makefile

@@ -9,7 +9,6 @@ SUBDIRS = \
 	app \
 	bandref \
 	benchmark \
-	ctypes \
 	exceptions \
 	grassdb \
 	gunittest \

python/grass/ctypes/Makefile

@@ -1,4 +1,4 @@
-MODULE_TOPDIR = ../../..
+MODULE_TOPDIR = ../..
 
 PACKAGE = "grasslibs"
 
@@ -75,11 +75,11 @@ PYDIR = $(ETC)/python
 GDIR = $(PYDIR)/grass
 DSTDIR = $(GDIR)/lib
 
-PYFILES  := $(patsubst %,$(DSTDIR)/%.py,$(MODULES))
-PYCFILES  := $(patsubst %,$(DSTDIR)/%.pyc,$(MODULES))
+PYFILES  := $(patsubst %,$(DSTDIR)/%.py,$(MODULES) __init__ ctypes_preamble ctypes_loader)
+PYCFILES  := $(patsubst %,$(DSTDIR)/%.pyc,$(MODULES) __init__ ctypes_preamble ctypes_loader)
 LPYFILES := $(patsubst %,$(OBJDIR)/%.py,$(MODULES))
 
-COPY_FILES = $(DSTDIR)/ctypes_loader.py $(DSTDIR)/ctypes_preamble.py
+COPY_FILES = $(DSTDIR)/ctypes_loader.py $(DSTDIR)/ctypes_preamble.py $(DSTDIR)/__init__.py
 
 ifeq ($(strip $(GRASS_LIBRARY_TYPE)),shlib)
 default: $(COPY_FILES)
@@ -96,6 +96,8 @@ $(DSTDIR)/ctypes_loader.py: ctypesgen/libraryloader.py
 	cp -f $< $@
 $(DSTDIR)/ctypes_preamble.py: ctypesgen/printer_python/preamble/3_2.py
 	cp -f $< $@
+$(DSTDIR)/__init__.py: libgrass__init__.py
+	cp -f $< $@
 
 $(DSTDIR)/%.py: $(OBJDIR)/%.py | $(DSTDIR)
 	$(INSTALL_DATA) $< $@

python/grass/ctypes/README.md

@@ -6,7 +6,7 @@ https://github.com/ctypesgen/ctypesgen/commit/0681f8ef1742206c171d44b7872c700f34
 
 ### How to update ctypesgen version
 
-1. Replace the GRASS directory `python/grass/ctypes/ctypesgen` with the `ctypesgen`
+1. Replace the GRASS directory `python/libgrass_interface_generator/ctypesgen` with the `ctypesgen`
    directory from ctypesgen source directory.
 2. Replace `python/grass/ctypes/run.py` with `run.py` from ctypesgen source directory.
 3. Apply the patches below.