1 files changed, 70 insertions, 0 deletions
diff --git a/aoc2023/build/packages/simplifile/src/simplifile_erl.erl b/aoc2023/build/packages/simplifile/src/simplifile_erl.erl
new file mode 100644
index 0000000..dac135a
--- /dev/null
+++ b/aoc2023/build/packages/simplifile/src/simplifile_erl.erl
@@ -0,0 +1,70 @@
+-module(simplifile_erl).
+-export([
+    read_file/1,
+    append_file/2, write_file/2, delete_file/1, delete_directory/1, recursive_delete/1,
+    list_directory/1, make_directory/1, is_file/1, create_dir_all/1, rename_file/2
+]).
+
+-define(is_posix_error(Error),
+    Error =:= eacces orelse Error =:= eagain orelse Error =:= ebadf orelse
+    Error =:= ebadmsg orelse Error =:= ebusy orelse Error =:= edeadlk orelse
+    Error =:= edeadlock orelse Error =:= edquot orelse Error =:= eexist orelse
+    Error =:= efault orelse Error =:= efbig orelse Error =:= eftype orelse
+    Error =:= eintr orelse Error =:= einval orelse Error =:= eio orelse
+    Error =:= eisdir orelse Error =:= eloop orelse Error =:= emfile orelse
+    Error =:= emlink orelse Error =:= emultihop orelse Error =:= enametoolong orelse
+    Error =:= enfile orelse Error =:= enobufs orelse Error =:= enodev orelse
+    Error =:= enolck orelse Error =:= enolink orelse Error =:= enoent orelse
+    Error =:= enomem orelse Error =:= enospc orelse Error =:= enosr orelse
+    Error =:= enostr orelse Error =:= enosys orelse Error =:= enotblk orelse
+    Error =:= enotdir orelse Error =:= enotsup orelse Error =:= enxio orelse
+    Error =:= eopnotsupp orelse Error =:= eoverflow orelse Error =:= eperm orelse
+    Error =:= epipe orelse Error =:= erange orelse Error =:= erofs orelse
+    Error =:= espipe orelse Error =:= esrch orelse Error =:= estale orelse
+    Error =:= etxtbsy orelse Error =:= exdev
+).
+
+posix_result(Result) ->
+    case Result of
+        ok -> {ok, nil};
+        {ok, Value} -> {ok, Value};
+        {error, Reason} when ?is_posix_error(Reason) -> {error, Reason}
+    end.
+
+read_file(Filename) ->
+    posix_result(file:read_file(Filename)).
+
+write_file(Contents, Filename) ->
+    posix_result(file:write_file(Filename, Contents)).
+
+append_file(Contents, Filename) ->
+    posix_result(file:write_file(Filename, Contents, [append])).
+
+delete_file(Filename) ->
+    posix_result(file:delete(Filename)).
+
+make_directory(Dir) ->
+    posix_result(file:make_dir(Dir)).
+
+list_directory(Dir) ->
+    case file:list_dir(Dir) of
+        {ok, Filenames} ->
+            {ok, [list_to_binary(Filename) || Filename <- Filenames]};
+        {error, Reason} when ?is_posix_error(Reason) ->
+            {error, Reason}
+    end.
+
+delete_directory(Dir) ->
+    posix_result(file:del_dir(Dir)).
+
+recursive_delete(Dir) ->
+    posix_result(file:del_dir_r(Dir)).
+
+is_file(Filename) ->
+    not (file:read_file_info(Filename) == {error, enoent}) and not filelib: is_dir(Filename).
+
+create_dir_all(Filename) ->
+    posix_result(filelib:ensure_dir(Filename)).
+
+rename_file(Source, Destination) ->
+    posix_result(file:rename(Source, Destination)).