Supply aircraft data with the Python wheels (issue JSBSim-Team#337).

Default JSBSim aircraft data (including its engine and systems data) and scripts are now included in the Python wheels.

The files are installed in the sys.prefix folder under share/JSBSim.

.github/workflows/cpp-python-build.yml

@@ -476,13 +476,9 @@ jobs:
         uses: actions/checkout@v2
       - name: Prepare the build
         run: |
-          mkdir build
-          mkdir build/python
-          mv python/ExceptionManagement.h build/python/.
-          mv python/fpectl/fpectlmodule.h build/python/.
-          mv python/JSBSim.py build/python/JSBSim
-          mv src build/python/.
-          pip install -U numpy wheel
+          pip install -U numpy wheel cython
+          mkdir build && cd build
+          cmake -DINSTALL_PYTHON_MODULE=ON -DBUILD_JULIA_PACKAGE=OFF ..
       - name: Download binary files
         uses: actions/download-artifact@v2
         with:

python/CMakeLists.txt

@@ -55,6 +55,12 @@ foreach(_FILE "MANIFEST.in" "jsbsim.pxd" "ExceptionManagement.h"
 endforeach()
 file(RENAME ${CMAKE_CURRENT_BINARY_DIR}/JSBSim.py ${CMAKE_CURRENT_BINARY_DIR}/JSBSim)
 
+# Duplicate data files (i.e. aircraft, engines, etc.)
+file(COPY ${CMAKE_SOURCE_DIR}/aircraft DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/data)
+file(COPY ${CMAKE_SOURCE_DIR}/engine DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/data)
+file(COPY ${CMAKE_SOURCE_DIR}/systems DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/data)
+file(COPY ${CMAKE_SOURCE_DIR}/scripts DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/data)
+
 # Copy each source file and collect the compile flags specified by add_definitions()
 foreach(OBJECT ${libJSBSim_SOURCE_FILES})
   string(SUBSTRING ${OBJECT} 0 17 HEADER)

python/MANIFEST.in

@@ -3,3 +3,7 @@ recursive-include . *.h*
 include *.pyx
 include *.pxd
 include src/simgear/xml/xmltok_*.c
+recursive-include data/aircraft/ *.xml
+recursive-include data/engine/ *.xml
+recursive-include data/systems/ *.xml
+recursive-include data/scripts/ *.xml

python/setup.py.in

@@ -177,6 +177,28 @@ else:
     setup_kwargs = {'cmdclass' : {'build_ext': BuildC_CxxExtension,},
                     'setup_requires': ["setuptools>=24.2", "cython>=0.25"]}
 
+# Prepare the list of XML data files (aircraft, engines, ...)
+
+# Iterate over the XML files in a directory
+def XML_files(dir_name):
+    dir_fullname = os.path.join('data', dir_name)
+    for f in os.scandir(dir_fullname):
+        if f.is_file() and os.path.splitext(f.name)[-1] == '.xml':
+            yield os.path.join(dir_fullname, f.name)
+
+data_files = [
+                ('share/${PROJECT_NAME}/engine', list(XML_files('engine'))),
+                ('share/${PROJECT_NAME}/systems', list(XML_files('systems'))),
+                ('share/${PROJECT_NAME}/scripts', list(XML_files('scripts'))),
+            ]
+
+# Iterate over the aircraft folders
+for d in os.scandir('data/aircraft'):
+    if d.is_dir():
+        dir_name = 'aircraft/' + d.name
+        data_files.append(('share/${PROJECT_NAME}/'+dir_name,
+                            list(XML_files(dir_name))))
+
 # Build & installation process for the JSBSim Python module
 setup(
     name="${PROJECT_NAME}",
@@ -209,4 +231,5 @@ setup(
     install_requires=['numpy'],
     ext_modules=[Extension('jsbsim', language='c++', **ext_kwargs)],
     python_requires=">=3.6",
+    data_files=data_files,
     **setup_kwargs)