unix: Remove custom file implementation to use extmod's VFS POSIX one.

The implementation in extmod/vfs_posix_file.c is now equivalent to that in
ports/unix/file.c, so remove the latter and use the former instead.

1 files changed, 18 insertions, 0 deletions

diff --git a/ports/unix/main.c b/ports/unix/main.c
index cab3f3873..903fa40ac 100644
--- a/ports/unix/main.c
+++ b/ports/unix/main.c
@@ -717,6 +717,24 @@ uint mp_import_stat(const char *path) {
     }
     return MP_IMPORT_STAT_NO_EXIST;
 }
+
+#if MICROPY_PY_IO
+// Factory function for I/O stream classes, only needed if generic VFS subsystem isn't used.
+// Note: buffering and encoding are currently ignored.
+mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kwargs) {
+    enum { ARG_file, ARG_mode };
+    STATIC const mp_arg_t allowed_args[] = {
+        { MP_QSTR_file, MP_ARG_OBJ | MP_ARG_REQUIRED, {.u_rom_obj = MP_ROM_NONE} },
+        { MP_QSTR_mode, MP_ARG_OBJ, {.u_obj = MP_OBJ_NEW_QSTR(MP_QSTR_r)} },
+        { MP_QSTR_buffering, MP_ARG_INT, {.u_int = -1} },
+        { MP_QSTR_encoding, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
+    };
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args, pos_args, kwargs, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+    return mp_vfs_posix_file_open(&mp_type_textio, args[ARG_file].u_obj, args[ARG_mode].u_obj);
+}
+MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
+#endif
 #endif
 
 void nlr_jump_fail(void *val) {