revert init_packet.py, change back tool for osx to script instead of binary

Author: hathach

boards.txt

@@ -50,10 +50,10 @@ feather52.build.nrfutil=nrfutil
 feather52.build.nrfutil.windows={runtime.platform.path}/tools/nrfutil-0.5.2/binaries/win32/nrfutil.exe
 # Legacy MacOS nrfutil location, this is for when people had it globally
 # installed and is left just for reference:
-#feather52.build.nrfutil.macosx=/usr/local/bin/nrfutil
+feather52.build.nrfutil.macosx=/usr/local/bin/nrfutil
 # Frozen MacOS nrfutil location, this uses a frozen or pre-built standalone
 # version of nrfutil included in the BSP (no manual install required):
-feather52.build.nrfutil.macosx={runtime.platform.path}/tools/nrfutil-0.5.2/binaries/macos/nrfutil
+#feather52.build.nrfutil.macosx={runtime.platform.path}/tools/nrfutil-0.5.2/binaries/macos/nrfutil
 
 feather52.menu.debug.l0=Level 0 (Release)
 feather52.menu.debug.l0.build.debug_flags=-DCFG_DEBUG=0

tools/nrfutil-0.5.2/nordicsemi/dfu/init_packet.py

@@ -79,8 +79,10 @@ def generate_packet(self):
         format_string = self.__generate_struct_format_string()
         args = []
 
-        #for key in sorted(self.init_packet_fields.keys(), key=lambda x: x.value):
-        for key in sorted(self.init_packet_fields.keys(), key=lambda x: x):
+        # If you got error message AttributeError: 'int' object has no attribute 'value'.
+        # Uncomment line 84 and comment out line 85 and run 'python setup.py install'
+        #for key in sorted(self.init_packet_fields.keys(), key=lambda x: x):
+        for key in sorted(self.init_packet_fields.keys(), key=lambda x: x.value):
             # Add length to fields that required that
             if key in [PacketField.REQUIRED_SOFTDEVICES_ARRAY,
                        PacketField.OPT_DATA]:
@@ -95,8 +97,10 @@ def __generate_struct_format_string(self):
         format_string = "<"  # Use little endian format with standard sizes for python,
         # see https://docs.python.org/2/library/struct.html
 
-        #for key in sorted(self.init_packet_fields.keys(), key=lambda x: x.value):
-        for key in sorted(self.init_packet_fields.keys(), key=lambda x: x):
+        # If you got error message AttributeError: 'int' object has no attribute 'value'.
+        # Uncomment line 102 and comment out line 103 and run 'python setup.py install'
+        #for key in sorted(self.init_packet_fields.keys(), key=lambda x: x):
+        for key in sorted(self.init_packet_fields.keys(), key=lambda x: x.value):
             if key in [PacketField.DEVICE_TYPE,
                        PacketField.DEVICE_REVISION,
                        ]: