ported code to use rebar and R14B

c_src/geef.c

@@ -0,0 +1,67 @@
+#include "erl_nif.h"
+#include <stdio.h>
+#include <git/commit.h>
+#include <git/tag.h>
+#include <git/common.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
+
+static ERL_NIF_TERM
+geef_hex_to_raw(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
+{
+  char sha[MAXBUFLEN];
+  (void)memset(&sha, '\0', sizeof(sha));
+
+  if (enif_get_string(env, argv[0], sha, sizeof(sha), ERL_NIF_LATIN1) < 1)
+      return enif_make_badarg(env);
+
+  git_oid oid;
+  git_oid_mkstr(&oid, sha);
+
+  ErlNifBinary ibin;
+  enif_alloc_binary(20, &ibin);
+  memcpy(ibin.data, (&oid)->id, 20);
+
+  return enif_make_binary(env, &ibin);
+}
+
+static ERL_NIF_TERM
+geef_object_exists(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
+{
+  char path[MAXBUFLEN];
+  char sha[MAXBUFLEN];
+  (void)memset(&path, '\0', sizeof(path));
+  (void)memset(&sha, '\0', sizeof(sha));
+
+  if (enif_get_string(env, argv[0], path, sizeof(path), ERL_NIF_LATIN1) < 1)
+      return enif_make_badarg(env);
+  if (enif_get_string(env, argv[1], sha, sizeof(sha), ERL_NIF_LATIN1) < 1)
+      return enif_make_badarg(env);
+
+  git_odb *odb;
+  git_odb_open(&odb, path);
+
+  git_oid oid;
+  git_oid_mkstr(&oid, sha);
+
+  int exists = git_odb_exists(odb, &oid);
+  if(exists == 1) {
+    return enif_make_atom(env, "true");
+  }
+  return enif_make_atom(env, "false");
+}
+
+static ErlNifFunc geef_funcs[] =
+{
+  {"hex_to_raw", 1, geef_hex_to_raw},
+  {"object_exists", 2, geef_object_exists}
+};
+
+ERL_NIF_INIT(geef, geef_funcs, NULL, NULL, NULL, NULL)