add with input stream

lua_modules/filesystem/src/resources/input_stream.rs

@@ -0,0 +1,8 @@
+use std::ops::Deref;
+use std::path::PathBuf;
+
+pub trait ResourceInputStream: std::io::Read {
+    fn path(&self) -> PathBuf;
+}
+
+pub type DynResourceInputStream = Box<dyn ResourceInputStream>;

lua_modules/filesystem/src/resources/mod.rs

@@ -1,3 +1,5 @@
+pub mod input_stream;
+mod input_stream_filesystem;
 pub mod resource_filesystem;
 
 use mlua::{MetaMethod, UserData, UserDataFields, UserDataMethods};

lua_modules/filesystem/src/sinks/mod.rs

@@ -1,3 +1,8 @@
+use crate::resources::input_stream::DynResourceInputStream;
+
 mod zip_sink;
 
-pub trait ResourceSink {}
+pub trait ResourceSink {
+    fn add_file(&mut self, input: DynResourceInputStream);
+    fn add_directory(&mut self);
+}

lua_modules/filesystem/src/sinks/zip_sink.rs

@@ -0,0 +1,19 @@
+use crate::resources::input_stream::DynResourceInputStream;
+use crate::sinks::ResourceSink;
+use std::fs::File;
+use std::io::Write;
+use std::ptr::write;
+use zip::ZipWriter;
+
+pub struct ZipSink {
+    writer: ZipWriter<File>,
+}
+
+impl ResourceSink for ZipSink {
+    fn add(&mut self, mut input: DynResourceInputStream) {
+        self.writer
+            .start_file(input.path(), Default::default())
+            .expect("error writing zip");
+        std::io::copy(&mut input, &mut self.writer).expect("error writing zip");
+    }
+}