appimage-run: init

This adds a best-effort hack to run AppImages, which currently don't
work out-of-the-box on NixOS. This is not preferable to using packaged
applications, but may help users if the application they want to run
is not in nixpkgs.

It uses the package list from the Steam chroot, but without Steam
packages.

pkgs/tools/package-management/appimage-run/default.nix

@@ -0,0 +1,146 @@
+{ stdenv, writeScript, buildFHSUserEnv, coreutils
+, extraPkgs ? pkgs: [] }:
+
+buildFHSUserEnv {
+  name = "appimage-run";
+
+  # Most of the packages were taken from the Steam chroot
+  targetPkgs = pkgs: with pkgs; [
+    gtk3
+    bashInteractive
+    gnome3.zenity
+    python2
+    xorg.xrandr
+    which
+    perl
+    xdg_utils
+    iana-etc
+  ] ++ extraPkgs pkgs;
+
+  multiPkgs = pkgs: with pkgs; [
+    desktop-file-utils
+    xorg.libXcomposite
+    xorg.libXtst
+    xorg.libXrandr
+    xorg.libXext
+    xorg.libX11
+    xorg.libXfixes
+    libGL
+
+    gst_all_1.gstreamer
+    gst_all_1.gst-plugins-ugly
+    libdrm
+    xorg.xkeyboardconfig
+    xorg.libpciaccess
+
+    glib
+    gtk2
+    bzip2
+    zlib
+    gdk_pixbuf
+
+    xorg.libXinerama
+    xorg.libXdamage
+    xorg.libXcursor
+    xorg.libXrender
+    xorg.libXScrnSaver
+    xorg.libXxf86vm
+    xorg.libXi
+    xorg.libSM
+    xorg.libICE
+    gnome2.GConf
+    freetype
+    (curl.override { gnutlsSupport = true; sslSupport = false; })
+    nspr
+    nss
+    fontconfig
+    cairo
+    pango
+    expat
+    dbus
+    cups
+    libcap
+    SDL2
+    libusb1
+    dbus-glib
+    libav
+    atk
+    libudev0-shim
+    networkmanager098
+
+    xorg.libXt
+    xorg.libXmu
+    xorg.libxcb
+    libGLU
+    libuuid
+    libogg
+    libvorbis
+    SDL
+    SDL2_image
+    glew110
+    openssl
+    libidn
+    tbb
+    wayland
+    mesa_noglu
+    libxkbcommon
+
+    flac
+    freeglut
+    libjpeg
+    libpng12
+    libsamplerate
+    libmikmod
+    libtheora
+    libtiff
+    pixman
+    speex
+    SDL_image
+    SDL_ttf
+    SDL_mixer
+    SDL2_ttf
+    SDL2_mixer
+    gstreamer
+    gst-plugins-base
+    libappindicator-gtk2
+    libcaca
+    libcanberra
+    libgcrypt
+    libvpx
+    librsvg
+    xorg.libXft
+    libvdpau
+    alsaLib
+    strace
+  ];
+
+  runScript = writeScript "appimage-exec" ''
+    #!${stdenv.shell}
+    APPIMAGE="$(realpath "$1")"
+
+    if [ ! -x "$APPIMAGE" ]; then
+      echo "fatal: $APPIMAGE is not executable"
+      exit 1
+    fi
+
+    SHA256="$(${coreutils}/bin/sha256sum "$APPIMAGE" | cut -d ' ' -f 1)"
+    SQUASHFS_ROOT="''${XDG_CACHE_HOME:-$HOME/.cache}/appimage-run/$SHA256/"
+    mkdir -p "$SQUASHFS_ROOT"
+
+    export APPDIR="$SQUASHFS_ROOT/squashfs-root"
+    if [ ! -x "$APPDIR" ]; then
+      cd "$SQUASHFS_ROOT"
+      "$APPIMAGE" --appimage-extract 2>/dev/null
+    fi
+
+    cd "$APPDIR"
+    export PATH="$PATH:$PWD/usr/bin"
+    export APPIMAGE_SILENT_INSTALL=1
+
+    if [ -n "$APPIMAGE_DEBUG_EXEC" ]; then
+      exec "$APPIMAGE_DEBUG_EXEC"
+    fi
+
+    exec ./AppRun
+  '';
+}

pkgs/top-level/all-packages.nix

@@ -501,6 +501,8 @@ with pkgs;
     buildTools = androidenv.buildTools;
   };
 
+  appimage-run = callPackage ../tools/package-management/appimage-run {};
+
   apt-cacher-ng = callPackage ../servers/http/apt-cacher-ng { };
 
   apt-offline = callPackage ../tools/misc/apt-offline { };