nix + web stuff

Author: Titaniumtown

flake.lock

@@ -0,0 +1,225 @@
+{
+  description = "YTBN Graphing Software - Web-compatible graphing calculator";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    simon-egui = {
+      url = "github:Titaniumtown/egui/b63c21d70150f1b414370f0f9a8af56e886662f4";
+      flake = false;
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, rust-overlay, simon-egui }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
+
+        # Use nightly rust with wasm32 target
+        rustToolchain = pkgs.rust-bin.nightly."2025-05-01".default.override {
+          targets = [ "wasm32-unknown-unknown" ];
+        };
+
+        rustPlatform = pkgs.makeRustPlatform {
+          cargo = rustToolchain;
+          rustc = rustToolchain;
+        };
+
+        # Build wasm-bindgen-cli matching the version in Cargo.lock (0.2.106)
+        wasm-bindgen-cli = rustPlatform.buildRustPackage rec {
+          pname = "wasm-bindgen-cli";
+          version = "0.2.106";
+
+          src = pkgs.fetchCrate {
+            inherit pname version;
+            hash = "sha256-M6WuGl7EruNopHZbqBpucu4RWz44/MSdv6f0zkYw+44=";
+          };
+
+          cargoHash = "sha256-ElDatyOwdKwHg3bNH/1pcxKI7LXkhsotlDPQjiLHBwA=";
+
+          nativeBuildInputs = [ pkgs.pkg-config ];
+          buildInputs = [ pkgs.openssl ] ++ pkgs.lib.optionals pkgs.stdenv.isDarwin [
+            pkgs.curl
+            pkgs.darwin.apple_sdk.frameworks.Security
+          ];
+
+          # Tests require network access
+          doCheck = false;
+        };
+
+        # Create a combined source with the main project and dependencies
+        combinedSrc = pkgs.stdenv.mkDerivation {
+          name = "ytbn-combined-src";
+          phases = [ "installPhase" ];
+          installPhase = ''
+            mkdir -p $out/integral_site_rust
+            mkdir -p $out/simon-egui
+
+            cp -r ${./.}/* $out/integral_site_rust/
+            cp -r ${simon-egui}/* $out/simon-egui/
+
+            chmod -R u+w $out
+          '';
+        };
+
+        # Build the wasm library using rustPlatform
+        wasmLib = rustPlatform.buildRustPackage {
+          pname = "ytbn-graphing-software-wasm";
+          version = "0.1.0";
+
+          src = combinedSrc;
+          sourceRoot = "${combinedSrc.name}/integral_site_rust";
+
+          cargoLock = {
+            lockFile = ./Cargo.lock;
+            outputHashes = {
+              "egui_plot-0.34.0" = "sha256-lk0yeljsvkHzF0eLD5llQ+05DycPqG2jGzhBvQ0X6Qw=";
+            };
+          };
+
+          nativeBuildInputs = with pkgs; [
+            python3Packages.fonttools
+            pkg-config
+            clang
+          ];
+
+          buildInputs = with pkgs; [
+            openssl
+            zstd
+          ];
+
+          buildPhase = ''
+            runHook preBuild
+
+            export HOME=$TMPDIR
+
+            cargo build \
+              --release \
+              --lib \
+              --target wasm32-unknown-unknown
+
+            runHook postBuild
+          '';
+
+          installPhase = ''
+            runHook preInstall
+            mkdir -p $out/lib
+            cp target/wasm32-unknown-unknown/release/*.wasm $out/lib/
+            runHook postInstall
+          '';
+
+          doCheck = false;
+        };
+
+        # Final web package with wasm-bindgen processing
+        ytbn-graphing-software-web = pkgs.stdenv.mkDerivation {
+          pname = "ytbn-graphing-software-web";
+          version = "0.1.0";
+
+          src = ./.;
+
+          nativeBuildInputs = [
+            wasm-bindgen-cli
+            pkgs.binaryen
+          ];
+
+          buildPhase = ''
+            runHook preBuild
+
+            # Generate JS bindings
+            wasm-bindgen ${wasmLib}/lib/ytbn_graphing_software.wasm \
+              --out-dir out \
+              --out-name ytbn_graphing_software \
+              --target web \
+              --no-typescript
+
+            # Optimize wasm (enable features used by modern rust wasm targets)
+            wasm-opt out/ytbn_graphing_software_bg.wasm \
+              -O2 --fast-math \
+              --enable-bulk-memory \
+              --enable-nontrapping-float-to-int \
+              --enable-sign-ext \
+              --enable-mutable-globals \
+              -o out/ytbn_graphing_software_bg.wasm
+
+            runHook postBuild
+          '';
+
+          installPhase = ''
+            runHook preInstall
+
+            mkdir -p $out
+
+            # Copy wasm and js files
+            cp out/ytbn_graphing_software_bg.wasm $out/
+            cp out/ytbn_graphing_software.js $out/
+
+            # Copy static web assets
+            cp www/index.html $out/
+            cp www/manifest.json $out/
+            cp www/sw.js $out/
+
+            # Copy logo
+            cp assets/logo.svg $out/
+
+            runHook postInstall
+          '';
+
+          meta = with pkgs.lib; {
+            description = "Web-compatible graphing calculator similar to Desmos";
+            homepage = "https://github.com/Titaniumtown/YTBN-Graphing-Software";
+            license = licenses.agpl3Only;
+            platforms = platforms.all;
+          };
+        };
+      in
+      {
+        packages = {
+          default = ytbn-graphing-software-web;
+          web = ytbn-graphing-software-web;
+          wasm = wasmLib;
+        };
+
+        devShells.default = pkgs.mkShell {
+          nativeBuildInputs = with pkgs; [
+            rustToolchain
+            wasm-bindgen-cli
+            binaryen
+            python3Packages.fonttools
+            rust-analyzer
+            pkg-config
+            clang
+
+            # Runtime deps for native builds
+            libxkbcommon
+            libGL
+            wayland
+            xorg.libX11
+            xorg.libXcursor
+            xorg.libXi
+          ];
+
+          buildInputs = with pkgs; [
+            openssl
+            zstd
+          ];
+
+          LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath (with pkgs; [
+            libxkbcommon
+            libGL
+            wayland
+            xorg.libX11
+            xorg.libXcursor
+            xorg.libXi
+          ]);
+        };
+      }
+    );
+}

flake.nix

@@ -202,15 +202,16 @@ impl MathApp {
             #[cfg(target_arch = "wasm32")]
             {
                 tracing::info!("Setting decompression cache");
-                let commit: crate::misc::HashBytes = const {
-                    unsafe {
-                        std::mem::transmute::<&str, crate::misc::HashBytes>(build::SHORT_COMMIT)
-                    }
-                };
-                let saved_data = commit.hashed_storage_create(data);
+                // Convert SHORT_COMMIT string to fixed-size byte array
+                let commit_bytes = build::SHORT_COMMIT.as_bytes();
+                let mut commit: crate::misc::HashBytes = [0u8; crate::misc::HASH_LENGTH];
+                let len = commit_bytes.len().min(crate::misc::HASH_LENGTH);
+                commit[..len].copy_from_slice(&commit_bytes[..len]);
+
+                let saved_data = crate::misc::hashed_storage_create(commit, &data);
                 tracing::info!("Bytes: {}", saved_data.len());
                 get_localstorage()
-                    .set_item(DATA_NAME, saved_data)
+                    .set_item(DATA_NAME, &saved_data)
                     .expect("failed to set local storage cache");
             }