credentials: unconfuse Go about the type

For some reason cgo thinks the `credtype` field does not exist in `git_cred` so
let's put it into the C code.

2 files changed, 8 insertions, 1 deletions

diff --git a/credentials.go b/credentials.go
index 766619c..038313b 100644
--- a/credentials.go
+++ b/credentials.go
@@ -3,6 +3,8 @@ package git
 /*
 #include <git2.h>
 #include <git2/sys/cred.h>
+
+git_credtype_t _go_git_cred_credtype(git_cred *cred);
 */
 import "C"
 import "unsafe"
@@ -28,7 +30,7 @@ func (o *Cred) HasUsername() bool {
 }
 
 func (o *Cred) Type() CredType {
-	return (CredType)(o.ptr.credtype)
+	return (CredType)(C._go_git_cred_credtype(o.ptr))
 }
 
 func credFromC(ptr *C.git_cred) *Cred {
diff --git a/wrapper.c b/wrapper.c
index 11c2f32..3656773 100644
--- a/wrapper.c
+++ b/wrapper.c
@@ -2,6 +2,7 @@
 #include <git2.h>
 #include <git2/sys/odb_backend.h>
 #include <git2/sys/refdb_backend.h>
+#include <git2/sys/cred.h>
 
 typedef int (*gogit_submodule_cbk)(git_submodule *sm, const char *name, void *payload);
 
@@ -180,4 +181,8 @@ void _go_git_writestream_free(git_writestream *stream)
 	stream->free(stream);
 }
 
+git_credtype_t _go_git_cred_credtype(git_cred *cred) {
+	return cred->credtype;
+}
+
 /* EOF */