pkg.base: cache eapi attribute

Author: radhermit

src/pkgcraft/pkg/base.pxd

@@ -1,10 +1,13 @@
 from .. cimport pkgcraft_c as C
+from ..eapi cimport Eapi
 from ..error cimport _IndirectInit
 
 
 cdef class Pkg(_IndirectInit):
     cdef C.Pkg *ptr
+
     # cached fields
+    cdef Eapi _eapi
     cdef int _hash
 
     @staticmethod

src/pkgcraft/pkg/base.pyx

@@ -34,7 +34,9 @@ cdef class Pkg(_IndirectInit):
     @property
     def eapi(self):
         """Get a package's EAPI."""
-        return Eapi.from_ptr(C.pkgcraft_pkg_eapi(self.ptr))
+        if self._eapi is None:
+            self._eapi = Eapi.from_ptr(C.pkgcraft_pkg_eapi(self.ptr))
+        return self._eapi
 
     @property
     def repo(self):