Add nix support (#94)

* Add nix support

* Update shell.nix

* Add nixGL

* Format shell.nix

* Update README

* build(nix): add mako python package

---------

Co-authored-by: Wu Yuwei <Wu Yu Wei>
Co-authored-by: Jason Tsai <[email protected]>

README.md

@@ -11,11 +11,7 @@ But if you are interested, feel free to help test it.
 
 # Usage
 
-The current demo works best on macOS at the moment, since it tries to customize its traffic light buttons to be seamless in the window.
-
-However, We plan to focus on Windows as main target support.
-
-## Prerequisites
+## Getting Started
 
 ### Windows
 
@@ -26,6 +22,14 @@ scoop install git python llvm cmake curl
 pip install mako
 ```
 
+> You can also use chocolatey to install if you prefer it.
+
+- Build & run:
+
+```sh
+cargo run
+```
+
 ### MacOS
 
 - Install [Xcode](https://developer.apple.com/xcode/)
@@ -36,8 +40,29 @@ brew install cmake pkg-config harfbuzz
 pip install mako
 ```
 
+- Build & run:
+
+```sh
+cargo run
+```
+
 ### Linux
 
+
+#### Nix
+
+- For NixOS:
+
+```sh
+nix-shell shell.nix --run 'cargo r'
+```
+
+- For non-NixOS distributions:
+
+```sh
+nix-shell shell.nix --run 'nixGL cargo r'
+```
+
 #### Debian-based Distributions
 
 ```sh
@@ -57,21 +82,13 @@ python3-mako
 
 For others, please follow the instructions in [Servo book](https://book.servo.org/hacking/setting-up-your-environment.html#tools-for-linux) to bootstrap first.
 
-## Build
-
-- Run demo
-
-```sh
-cargo run
-```
-
 ## Nightly Release
 
 Nightly releases built with CrabNebula Cloud can be found at [releases](https://web.crabnebula.cloud/verso/verso-nightly/releases).
 
 ## Future Work
 
-- Add more window and servo features to make it feel more like a general web browser.
-- Improve development experience.
-- Multi webviews and multi browsing contexts in the same window.
-- Enable `Gstreamer` feature and remove `brew install harfbuzz` in README.
+- Multiwindow support.
+- Enable multiprocess mode.
+- Enable sandobx in all platforms.
+- Enable `Gstreamer` feature and remove `brew install harfbuzz` in README.

shell.nix

@@ -0,0 +1,60 @@
+with import <nixpkgs> { };
+let
+  nixgl = import (fetchTarball "https://github.com/nix-community/nixGL/archive/489d6b095ab9d289fe11af0219a9ff00fe87c7c5.tar.gz") { enable32bits = false; };
+  pkgs_gnumake_4_3 = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/6adf48f53d819a7b6e15672817fa1e78e5f4e84f.tar.gz") { };
+  llvmPackages = llvmPackages_14; # servo/servo#31059
+  stdenv = stdenvAdapters.useMoldLinker llvmPackages.stdenv;
+in
+stdenv.mkDerivation {
+  name = "verso-env";
+
+  buildInputs = [
+    fontconfig
+    freetype
+    libunwind
+    xorg.libxcb
+    xorg.libX11
+    gst_all_1.gstreamer
+    gst_all_1.gst-plugins-base
+    gst_all_1.gst-plugins-bad
+    gst_all_1.gst-plugins-ugly
+    rustup
+    taplo
+    llvmPackages.bintools
+    llvmPackages.llvm
+    llvmPackages.libclang
+    udev
+    cmake
+    dbus
+    gcc
+    git
+    pkg-config
+    which
+    llvm
+    perl
+    yasm
+    m4
+    pkgs_gnumake_4_3.gnumake # servo/mozjs#375
+    libGL
+    mold
+    wayland
+    nixgl.auto.nixGLDefault
+    (python3.withPackages (ps: with ps; [pip dbus mako]))
+  ];
+  LD_LIBRARY_PATH = lib.makeLibraryPath [
+    zlib
+    xorg.libXcursor
+    xorg.libXrandr
+    xorg.libXi
+    libxkbcommon
+    vulkan-loader
+    wayland
+    libGL
+    nixgl.auto.nixGLDefault
+  ];
+  LIBCLANG_PATH = "${llvmPackages.libclang.lib}/lib";
+  # Allow cargo to download crates
+  SSL_CERT_FILE = "${cacert}/etc/ssl/certs/ca-bundle.crt";
+  # Enable colored cargo and rustc output
+  TERMINFO = "${ncurses.out}/share/terminfo";
+}