ported code to use rebar and R14B

.gitignore

@@ -2,3 +2,4 @@
 *.so
 *.o
 *.swp
+rebar

Makefile

@@ -1,30 +1,15 @@
-OTPROOT=/Users/schacon/projects/otp
-INCLUDES = -I$(OTPROOT)/erts/emulator/beam/
+REBAR=$(shell which rebar || echo ./rebar)
 
-# OS X flags.
-GCCFLAGS = -O3 -fPIC -bundle -flat_namespace -undefined suppress -fno-common -Wall -m32
+all: compile
 
-LIBS = -lz -lgit2
+./rebar:
+		erl -noshell -s inets start \
+					-eval 'httpc:request(get, {"http://hg.basho.com/rebar/downloads/rebar", []}, [], [{stream, "./rebar"}])' \
+							-s init stop
+			chmod +x ./rebar
 
-# Linux Flags
-#GCCFLAGS = -O3 -fPIC -shared -fno-common -Wall
-
-CFLAGS = $(GCCFLAGS) $(INCLUDES)
-LDFLAGS = $(GCCFLAGS) $(LIBS)
-
-OBJECTS = geef.o
-
-DRIVER = geef.so
-BEAM = geef.beam
-
-all: $(DRIVER) $(BEAM)
-
-clean: 
-	rm -f *.o *.beam $(DRIVER)
-
-$(DRIVER): $(OBJECTS)
-	gcc -o $@ $^ $(LDFLAGS)
-
-$(BEAM): geef.erl
-	erlc $^
+compile: $(REBAR)
+		@$(REBAR) compile
 
+clean: $(REBAR)
+		@$(REBAR) clean

geef.c → c_src/geef.c

@@ -1,8 +1,15 @@
 #include "erl_nif.h"
 #include <stdio.h>
+#include <git/commit.h>
+#include <git/tag.h>
 #include <git/common.h>
-#include <git/oid.h>
+#include <git/errors.h>
+#include <git/index.h>
 #include <git/odb.h>
+#include <git/oid.h>
+#include <git/revwalk.h>
+#include <git/repository.h>
+#include <git/zlib.h>
 
 #define MAXBUFLEN       1024
 
@@ -19,7 +26,7 @@ geef_hex_to_raw(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
   git_oid_mkstr(&oid, sha);
 
   ErlNifBinary ibin;
-  enif_alloc_binary(env, 20, &ibin);
+  enif_alloc_binary(20, &ibin);
   memcpy(ibin.data, (&oid)->id, 20);
 
   return enif_make_binary(env, &ibin);

ebin/geef.app

@@ -0,0 +1,14 @@
+{application, geef,
+ [
+  {description, ""},
+  {vsn, "0.0.1"},
+  {modules, [
+             geef
+            ]},
+  {registered, []},
+  {applications, [
+                  kernel,
+                  stdlib
+                 ]},
+  {env, []}
+ ]}.

geef

@@ -1,6 +1,6 @@
-#!/Users/schacon/projects/otp/bin/escript
+#!/usr/local/Cellar/erlang/R14B/bin/escript
 %% -*- erlang -*-
-%%! debug verbose -noshell
+%%! debug verbose -noshell -pa ebin
 
 main([Command|_Args]) ->
     geef:start(),

rebar.config

@@ -0,0 +1,13 @@
+{so_name, "geef.so"}.
+
+{port_envs, [
+      {"DRV_LDFLAGS", "$DRV_LDFLAGS -lz -lgit2"},
+
+      %% OS X Leopard flags for 64-bit
+      {"darwin9.*-64$", "CXXFLAGS", "-m64"},
+      {"darwin9.*-64$", "LDFLAGS", "-arch x86_64"},
+
+      %% OS X Snow Leopard flags for 32-bit
+      {"darwin10.*-32$", "CXXFLAGS", "-m32"},
+      {"darwin10.*-32$", "LDFLAGS", "-arch i386"}
+]}.

src/geef.erl

@@ -0,0 +1,21 @@
+-module(geef).
+-export([start/0, hex_to_raw/1, object_exists/2]).
+
+start() ->
+    case code:priv_dir(geef) of
+        {error, bad_name} ->
+            SoName = filename:join("priv", geef);
+        Dir ->
+            SoName = filename:join(Dir, geef)
+    end,
+    io:format("Hey There: ~s~n", [SoName]),
+    erlang:load_nif(SoName, 0).
+
+hex_to_raw(_Val) ->
+    nif_error(?LINE).    
+
+object_exists(_Val, _Val2) ->
+    nif_error(?LINE).
+
+nif_error(Line) ->
+    exit({nif_not_loaded,module,?MODULE,line,Line}).