first range wrappers work

.gitignore

@@ -0,0 +1,4 @@
+.eggs/
+build/
+cnorxz.egg-info/
+*.so

cnorxz/base/range.pxd

@@ -0,0 +1,7 @@
+
+from libcpp.memory cimport shared_ptr
+
+cdef extern from "ranges/ranges.h" namespace "CNORXZ":
+    cdef cppclass cpp_RangeBase "CNORXZ::RangeBase":
+        size_t size() except +
+        size_t dim() except +

cnorxz/base/range_factory.pxd

@@ -0,0 +1,12 @@
+
+from libcpp.memory cimport shared_ptr
+from range cimport cpp_RangeBase
+
+cdef extern from "ranges/ranges.h" namespace "CNORXZ":
+    cdef cppclass cpp_RangeFactoryBase "CNORXZ::RangeFactoryBase":
+        shared_ptr[cpp_RangeBase] create() except +
+
+cdef extern from "ranges/ranges.h" namespace "CNORXZ":
+    cdef cppclass cpp_CRangeFactory "CNORXZ::CRangeFactory" (cpp_RangeFactoryBase):
+        cpp_CRangeFactory(size_t size) except +
+        shared_ptr[cpp_RangeBase] create() except +

cnorxz/base/ranges.pyx

@@ -0,0 +1,32 @@
+
+from libcpp.memory cimport shared_ptr, make_shared, dynamic_pointer_cast
+from range cimport cpp_RangeBase
+from range_factory cimport cpp_RangeFactoryBase, cpp_CRangeFactory
+
+cdef class Range:
+    cdef shared_ptr[cpp_RangeBase] cpp_range
+
+    def size(self):
+        return self.cpp_range.get().size()
+
+    def dim(self):
+        return self.cpp_range.get().dim()
+
+
+cdef class RangeFactory:
+    cdef shared_ptr[cpp_RangeFactoryBase] cpp_rfactory
+
+    def __cinit__(self,rangetype,**kvargs):
+        cdef size_t size = 0
+        if rangetype == 'C':
+            size = kvargs['size']
+            self.cpp_rfactory = dynamic_pointer_cast[cpp_RangeFactoryBase,cpp_CRangeFactory](
+	        make_shared[cpp_CRangeFactory](size))
+        else:
+            raise Exception('unknown range type:'+ rangetype)
+
+    def create(self):
+        r = Range()
+        r.cpp_range = self.cpp_rfactory.get().create()
+        return r
+    

setup.py

@@ -3,19 +3,40 @@
 import Cython.Build
 import setuptools
 import sysconfig
+import subprocess
 
 libname = "cnorxz"
 author = "Christian Zimmermann"
 author_email = "chizeta@f3l.de"
+expected_cnorxz_version = "1.0.0" # dummy for now; in the future this is supposed to be the c++ version which is guaranteed to be compatible with py cnorxz
+
+git_hash = subprocess.run(['git','rev-parse','HEAD'],stdout=subprocess.PIPE).stdout.decode('ascii')[:-1]
+git_tags = subprocess.run(['git', 'tag', '-l', '--sort=refname', 'v*'],stdout=subprocess.PIPE).stdout.decode('ascii').split()
+
+version = git_hash[:7]
+if len(git_tags) != 0:
+    git_tag = git_tags[-1]
+    git_hash_tag = subprocess.run(['git','rev-parse',git_tag],stdout=subprocess.PIPE).stdout.decode('ascii')[:-1]
+    if git_hash_tag == git_hash:
+        version = git_tag[1:]
+    else:
+        version += git_tag[1:] 
+
+# if expected_cnorxz_version != cnorxz_version
+#    version += '-cxz' + cnorxz_version
+        
+path_to_cnorxz = "/home/chizeta/repos/cnorxz/install"
 
 inc_dirs = list()
-#inc_dirs.append( "@INSTALL_PATH@/include" )
-# ^ specify cnorxz path in command line by typing 'pip install --install-option="--library-dirs=..."'
+if path_to_cnorxz != "":
+    inc_dirs.append( path_to_cnorxz + "/include/cnorxz" )
 
 lib_dirs = list()
 lib_dirs.append( "/usr/lib" )
 lib_dirs.append( "/usr/local/lib" )
-#lib_dirs.append( "@INSTALL_PATH@/lib" )
+if path_to_cnorxz != "":
+    inc_dirs.append( path_to_cnorxz + "/lib" )
+lib_dirs.append( "/home/chizeta/repos/cnorxz/install/lib" )
 
 extra_compile_args = sysconfig.get_config_var('CFLAGS').split()
 extra_compile_args += ["-std=c++17", "-Wall", "-Wextra", "-Wpedantic"] # get this automatically from cnorxz itself??
@@ -41,8 +62,8 @@ if __name__ == "__main__":
         setuptools.Extension(
             name = libname + ".base",
             sources = [
-                "base/ranges.pys",
-                "base/array.pys",
+                "cnorxz/base/ranges.pyx",
+                #"cnorxz/base/array.pyx",
             ],
             **default_extension_args
         )
@@ -52,8 +73,7 @@ if __name__ == "__main__":
     setuptools.setup(
         name = libname,
         packages = setuptools.find_packages(),
-        version_format='{tag}.dev{commitcount}+{gitsha}',
-        setup_requires=['setuptools-git-version']
+        version = version,
         include_dirs = inc_dirs,
         ext_modules = Cython.Build.cythonize(extensions),
         author = author,