write image data during build.rs

Cargo.toml

@@ -11,7 +11,6 @@ opt-level = 1
 [dependencies]
 anyhow = "1"
 ggez = { version = "0.8.1", default-features = false }
-include_dir = "0.7.3"
 rand = "0.8.5"
 
 [build-dependencies]

build.rs

@@ -1,6 +1,6 @@
 use std::fs::File;
 use std::io::Write;
-use std::path::Path;
+use std::path::{Path, PathBuf};
 
 use quote::__private::TokenStream;
 use quote::{format_ident, quote};
@@ -18,11 +18,6 @@ fn main() {
     // println!("cargo:warning={:#}", assets_struct.to_string());
 
     assets_file.write_all(b"// @generated\n\n").unwrap();
-    assets_file.write_all(
-        quote! { static PROJECT_DIR: include_dir::Dir =  include_dir::include_dir!("$CARGO_MANIFEST_DIR/assets"); }
-        .to_string()
-        .as_bytes(),
-    ).unwrap();
     assets_file
         .write_all(assets_struct.to_string().as_bytes())
         .expect("error writing struct to assets.rs file");
@@ -34,6 +29,10 @@ fn capitalize_first(s: &str) -> String {
         .collect()
 }
 
+fn project_dir() -> PathBuf {
+    Path::new(&std::env::var_os("CARGO_MANIFEST_DIR").unwrap()).to_path_buf()
+}
+
 fn visit_dir(path: &Path) -> (String, TokenStream) {
     let mut fields = vec![];
     let mut defs = vec![];
@@ -57,16 +56,12 @@ fn visit_dir(path: &Path) -> (String, TokenStream) {
                     .to_string()
             );
 
-            let image_path = entry
-                .path()
-                .display()
-                .to_string()
-                .trim_start_matches("assets/")
-                .to_string();
-
+            let image_path = entry.path();
+            let image_path = project_dir().join(image_path);
+            let image_bytes = std::fs::read(&image_path).unwrap();
             fields.push(quote! { pub #field_name : std::rc::Rc<ggez::graphics::Image> });
             field_constructors
-                .push(quote! { #field_name: std::rc::Rc::new(ggez::graphics::Image::from_bytes(ctx, PROJECT_DIR.get_file(#image_path).unwrap().contents())?) })
+                .push(quote! { #field_name: std::rc::Rc::new(ggez::graphics::Image::from_bytes(ctx, &[ #(#image_bytes,)*])?) })
         }
     }
     let struct_type = capitalize_first(&path.file_name().unwrap().to_string_lossy());