electron-mail: update script

pkgs/by-name/el/electron-mail/package.nix

@@ -2,7 +2,6 @@
   appimageTools,
   lib,
   fetchurl,
-  nix-update-script,
   stdenvNoCC,
   makeWrapper,
   _7zz,
@@ -53,6 +52,8 @@ let
       meta
       ;
 
+    passthru.updateScript = ./update.sh;
+
     extraInstallCommands = ''
       install -m 444 -D ${appimageContents}/${pname}.desktop -t $out/share/applications
       substituteInPlace $out/share/applications/${pname}.desktop \
@@ -64,8 +65,6 @@ let
       pkgs.libsecret
       pkgs.libappindicator
     ];
-
-    passthru.updateScript = nix-update-script { };
   };
 
   darwin = stdenvNoCC.mkDerivation {
@@ -76,6 +75,8 @@ let
       meta
       ;
 
+    passthru.updateScript = ./update.sh;
+
     sourceRoot = ".";
     nativeBuildInputs = [
       _7zz

pkgs/by-name/el/electron-mail/update.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env nix-shell
+#! nix-shell -I nixpkgs=./. -i bash -p curl gnused jq nix
+
+set -eou pipefail
+
+ROOT="$(dirname "$(readlink -f "$0")")"
+
+latestVersion=$(curl --fail --silent https://api.github.com/repos/vladimiry/ElectronMail/releases/latest | jq --raw-output .tag_name | sed 's/^v//')
+
+currentVersion=$(nix-instantiate --eval -E "with import ./. {}; electron-mail.version" | tr -d '"')
+
+if [[ "$currentVersion" == "$latestVersion" ]]; then
+  echo "electron-mail is up-to-date: $currentVersion"
+  exit 0
+fi
+
+echo "updating electron-mail: $currentVersion -> $latestVersion"
+
+sed -i "s/version = \".*\"/version = \"${latestVersion}\"/" "$ROOT/package.nix"
+
+APPIMAGE_URL="https://github.com/vladimiry/ElectronMail/releases/download/v${latestVersion}/electron-mail-${latestVersion}-linux-x86_64.AppImage"
+APPIMAGE_HASH=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$(nix-prefetch-url "$APPIMAGE_URL")")
+sed -i "/linux-x86_64\.AppImage/,/hash/{s|hash = \".*\"|hash = \"${APPIMAGE_HASH}\"|}" "$ROOT/package.nix"
+
+DMG_URL="https://github.com/vladimiry/ElectronMail/releases/download/v${latestVersion}/electron-mail-${latestVersion}-mac-arm64.dmg"
+DMG_SHA=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$(nix-prefetch-url "$DMG_URL")")
+sed -i "/mac-arm64\.dmg/,/hash/{s|hash = \".*\"|hash = \"${DMG_SHA}\"|}" "$ROOT/package.nix"