Add a minimum of config

This lets us revive the reflog test by letting us set
core.logallrefupdates to true.

c_src/geef.c

@@ -13,6 +13,7 @@
 #include "signature.h"
 #include "revparse.h"
 #include "reflog.h"
+#include "config.h"
 #include "geef.h"
 #include <stdio.h>
 #include <string.h>
@@ -24,6 +25,7 @@ ErlNifResourceType *geef_ref_iter_type;
 ErlNifResourceType *geef_object_type;
 ErlNifResourceType *geef_revwalk_type;
 ErlNifResourceType *geef_index_type;
+ErlNifResourceType *geef_config_type;
 
 geef_atoms atoms;
 
@@ -58,6 +60,10 @@ static int load(ErlNifEnv *env, void **priv, ERL_NIF_TERM load_info)
 	geef_index_type = enif_open_resource_type(env, NULL,
 		  "index_type", geef_index_free, ERL_NIF_RT_CREATE, NULL);
 
+	geef_config_type = enif_open_resource_type(env, NULL,
+		  "config_type", geef_config_free, ERL_NIF_RT_CREATE, NULL);
+
+
 	if (geef_repository_type == NULL)
 		return -1;
 
@@ -164,6 +170,7 @@ static ErlNifFunc geef_funcs[] =
 	{"repository_get_path", 1, geef_repository_path},
 	{"repository_get_workdir", 1, geef_repository_workdir},
 	{"repository_get_odb", 1, geef_repository_odb},
+	{"repository_get_config", 1, geef_repository_config},
 	{"odb_object_exists", 2, geef_odb_exists},
 	{"odb_write", 3, geef_odb_write},
 	{"reference_list", 1, geef_reference_list},
@@ -209,6 +216,7 @@ static ErlNifFunc geef_funcs[] =
 	{"index_read_tree",  2, geef_index_read_tree},
 	{"signature_default", 1, geef_signature_default},
 	{"revparse_single", 2, geef_revparse_single},
+	{"config_set_bool", 3, geef_config_set_bool},
 };
 
 ERL_NIF_INIT(geef_nif, geef_funcs, load, NULL, upgrade, unload)

c_src/repository.c

@@ -1,6 +1,7 @@
 #include "repository.h"
 #include "object.h"
 #include "oid.h"
+#include "config.h"
 #include "geef.h"
 #include <string.h>
 #include <git2.h>
@@ -160,6 +161,26 @@ geef_repository_is_bare(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 
 }
 
+ERL_NIF_TERM
+geef_repository_config(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
+{
+	geef_repository *repo;
+	geef_config *cfg;
+	ERL_NIF_TERM term_cfg;
+
+	if (!enif_get_resource(env, argv[0], geef_repository_type, (void **) &repo))
+		return enif_make_badarg(env);
+
+	cfg = enif_alloc_resource(geef_config_type, sizeof(geef_config));
+	if (git_repository_config(&cfg->config, repo->repo) < 0)
+		return geef_error(env);
+
+	term_cfg = enif_make_resource(env, cfg);
+	enif_release_resource(cfg);
+
+	return enif_make_tuple2(env, atoms.ok, term_cfg);
+}
+
 ERL_NIF_TERM
 geef_repository_odb(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 {

c_src/repository.h

@@ -13,6 +13,7 @@ ERL_NIF_TERM geef_repository_path(ErlNifEnv *env, int argc, const ERL_NIF_TERM a
 ERL_NIF_TERM geef_repository_workdir(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
 ERL_NIF_TERM geef_repository_is_bare(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
 ERL_NIF_TERM geef_repository_odb(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+ERL_NIF_TERM geef_repository_config(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
 ERL_NIF_TERM geef_odb_exists(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
 ERL_NIF_TERM geef_odb_write(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
 

src/geef_nif.erl

@@ -29,6 +29,10 @@ repository_get_workdir(_Handle) ->
 repository_get_odb(_Val) ->
     nif_error(?LINE).
 
+-spec repository_get_config(term()) -> {ok, term()} | {error, term()}.
+repository_get_config(_Val) ->
+    nif_error(?LINE).
+
 -spec repository_init(iolist(), boolean()) -> term().
 repository_init(_Path, _Bare) ->
     nif_error(?LINE).
@@ -201,6 +205,10 @@ signature_new(_Name, _Email, _Time) ->
 revparse_single(_Handle, _Str) ->
     ?NIF_FN.
 
+-spec config_set_bool(term(), iolist(), boolean()) -> ok | {error, term()}.
+config_set_bool(_Handle, _Name, _Val) ->
+    ?NIF_FN.
+
 nif_error(Line) ->
     erlang:nif_error({nif_not_loaded,module,?MODULE,line,Line}).
 

src/geef_repo.erl

@@ -15,6 +15,7 @@
 	 reference_dwim/2, handle/1, iterator/2]).
 -export([reference_has_log/2]).
 -export([reflog_read/2, reflog_delete/2]).
+-export([config/1]).
 
 -include("geef_records.hrl").
 -record(state, {handle}).
@@ -79,6 +80,10 @@ references(Pid) ->
 lookup_object(Pid, Oid) ->
     gen_server:call(Pid, {lookup_object, Oid}).
 
+%% @doc Get the repository's configuration
+config(Pid) ->
+    gen_server:call(Pid, config).
+
 %% @private
 -spec iterator(pid(), iolist() | undefined) -> {ok, geef_ref:iterator()} | {error, term()}.
 iterator(Pid, Regexp) ->
@@ -158,6 +163,11 @@ handle_call({reflog_delete, Name}, _From, State = #state{handle=Handle}) ->
     Reply = geef_nif:reflog_delete(Handle, Name),
     {reply, Reply, State};
 
+
+handle_call(config, _From, State = #state{handle=Handle}) ->
+    Reply = handle_config(Handle),
+    {reply, Reply, State};
+
 handle_call(stop, _From, State) ->
     {stop, normal, ok, State};
 handle_call(revwalk, _From, State = #state{handle=Handle}) ->
@@ -212,3 +222,11 @@ handle_revwalk(Handle) ->
 	Error ->
 	    Error
     end.
+
+handle_config(Handle) ->
+    case geef_nif:repository_get_config(Handle) of
+        {ok, ConfigHandle} ->
+            geef_config:start_link(ConfigHandle);
+        Error ->
+            Error
+    end.

test/repo_test.erl

@@ -50,8 +50,13 @@ index_add_test(Repo) ->
      ?_assertEqual(Time, Entry1#geef_index_entry.mtime),
      ?_assertEqual(geef_index:count(Idx), 1)].
 
+set_logallrefupdates(Repo) ->
+    {ok, Config} = geef_repo:config(Repo),
+    ok = geef_config:set(Config, "core.logallrefupdates", true).
+
 ref_test(Repo) ->
     odb_write_test(Repo),
+    set_logallrefupdates(Repo),
     Id = geef_oid:parse("c300118399f01fe52b316061b5d32beb27e0adfd"),
     {ok, _} = geef_ref:create(Repo, "refs/heads/branch", Id, true),
     {ok, _} = geef_ref:create_symbolic(Repo, "refs/heads/other", "refs/heads/branch", true),
@@ -67,9 +72,7 @@ ref_test(Repo) ->
      ?_assertEqual(<<"branch">>, geef_ref:shorthand(Ref0)),
      ?_assertEqual(Ref2#geef_reference.target, Id),
      ?_assertEqual({ok, true}, geef_ref:has_log(Ref0)),
-     %% temporarily removed as we we're in a bare repo and libgit2 recently started
-     %% caring about the log append rules
-     %% ?_assertEqual(1, length(Reflog0)),
+     ?_assertEqual(1, length(Reflog0)),
      ?_assertEqual(0, length(Reflog1)),
      ?_assertEqual(Ref0, Dwimed)].