discord: fix updater script (#128633)

Co-authored-by: Sandro <sandro.jaeckel@gmail.com>

pkgs/applications/networking/instant-messengers/discord/base.nix

@@ -5,6 +5,7 @@
 , libX11, libXScrnSaver, libXcomposite, libXcursor, libXdamage, libXext
 , libXfixes, libXi, libXrandr, libXrender, libXtst, libxcb, libxshmfence
 , mesa, nspr, nss, pango, systemd, libappindicator-gtk3, libdbusmenu
+, writeScript, common-updater-scripts
 }:
 
 let
@@ -71,7 +72,15 @@ in stdenv.mkDerivation rec {
     mimeType = "x-scheme-handler/discord";
   };
 
-  passthru.updateScript = ./update-discord.sh;
+  passthru.updateScript = writeScript "discord-update-script" ''
+    #!/usr/bin/env nix-shell
+    #!nix-shell -i bash -p curl gnugrep common-updater-scripts
+    set -eou pipefail;
+    url=$(curl -sI "https://discordapp.com/api/download/${builtins.replaceStrings ["discord-" "discord"] ["" "stable"] pname}?platform=linux&format=tar.gz" | grep -oP 'location: \K\S+')
+    version=''${url##https://dl*.discordapp.net/apps/linux/}
+    version=''${version%%/*.tar.gz}
+    update-source-version ${pname} "$version" --file=./pkgs/applications/networking/instant-messengers/discord/default.nix
+  '';
 
   meta = with lib; {
     description = "All-in-one cross-platform voice and text chat for gamers";

pkgs/applications/networking/instant-messengers/discord/default.nix

@@ -27,10 +27,10 @@ in {
     pname = "discord-canary";
     binaryName = "DiscordCanary";
     desktopName = "Discord Canary";
-    version = "0.0.125";
+    version = "0.0.126";
     src = fetchurl {
       url = "https://dl-canary.discordapp.net/apps/linux/${version}/discord-canary-${version}.tar.gz";
-      sha256 = "0ly5a6l7rvl54mc39xma14jrcrf11q3ndnkkr16by5hy3palmz9g";
+      sha256 = "EraTDRKd6t0c9U68tSRdGkeB1hfqNS4KUewEXwkL8io=";
     };
   };
 }.${branch}

pkgs/applications/networking/instant-messengers/discord/update-discord.sh

@@ -1,36 +0,0 @@
-#!/usr/bin/env bash
-# script to generate ./default.nix
-
-set -e
-exec >"${BASH_SOURCE%/*}/default.nix"
-
-cat <<EOF
-{ branch ? "stable", pkgs }:
-# Generated by ./update-discord.sh
-let
-  inherit (pkgs) callPackage fetchurl;
-in {
-EOF
-
-for branch in "" ptb canary; do
-    url=$(curl -sI "https://discordapp.com/api/download${branch:+/}${branch}?platform=linux&format=tar.gz" | grep -oP 'location: \K\S+')
-    version=${url##https://dl*.discordapp.net/apps/linux/}
-    version=${version%%/*.tar.gz}
-    echo "  ${branch:-stable} = callPackage ./base.nix rec {"
-    echo "    pname = \"discord${branch:+-}${branch}\";"
-    case $branch in
-        "") suffix="" ;;
-        ptb) suffix="PTB" ;;
-        canary) suffix="Canary" ;;
-    esac
-    echo "    binaryName = \"Discord${suffix}\";"
-    echo "    desktopName = \"Discord${suffix:+ }${suffix}\";"
-    echo "    version = \"${version}\";"
-    echo "    src = fetchurl {"
-    echo "      url = \"${url//${version}/\$\{version\}}\";"
-    echo "      sha256 = \"$(nix-prefetch-url "$url")\";"
-    echo "    };"
-    echo "  };"
-done
-
-echo "}.\${branch}"