termius: switch to a snap source

pkgs/applications/networking/termius/default.nix

···
 { atomEnv
 , autoPatchelfHook
-, dpkg
+, squashfsTools
 , fetchurl
 , makeDesktopItem
 , makeWrapper
···
 
 stdenv.mkDerivation rec {
   pname = "termius";
-  version = "7.16.0";
+  version = "7.17.1";
 
   src = fetchurl {
-    # find the latest version by
-    # curl https://deb.termius.com/dists/squeeze/main/binary-amd64/Packages
-    url = "https://deb.termius.com/pool/main/t/termius-app/termius-app_${version}_amd64.deb";
-    sha256 = "013nli61bk4x4hkhr6gcpzm1y8ycmqk3vr7q0w2dn2bfdwjg559v";
+    # find the latest version with
+    # curl -H 'X-Ubuntu-Series: 16' https://api.snapcraft.io/api/v1/snaps/details/termius-app | jq '.version'
+    # and the url with
+    # curl -H 'X-Ubuntu-Series: 16' https://api.snapcraft.io/api/v1/snaps/details/termius-app | jq '.download_url' -r
+    url = "https://api.snapcraft.io/api/v1/snaps/download/WkTBXwoX81rBe3s3OTt3EiiLKBx2QhuS_81.snap";
+    sha256 = "sha256-jNwWQTjUy8nJ8gHlbP9WgDlARWOhTQAA7KAcQNXKhNg=";
   };
 
   desktopItem = makeDesktopItem {
···
   dontPatchELF = true;
   dontWrapGApps = true;
 
-  nativeBuildInputs = [ autoPatchelfHook dpkg makeWrapper wrapGAppsHook ];
+  nativeBuildInputs = [ autoPatchelfHook squashfsTools makeWrapper wrapGAppsHook ];
 
   buildInputs = atomEnv.packages;
 
-  unpackPhase = "dpkg-deb -x $src .";
+  unpackPhase = ''
+    runHook preUnpack
+    unsquashfs "$src"
+    runHook postUnpack
+  '';
 
   installPhase = ''
     runHook preInstall
+    cd squashfs-root
+    mkdir -p $out/opt/termius
+    cp -r \
+        icudtl.dat \
+        libffmpeg.so \
+        locales \
+        resources \
+        resources.pak \
+        termius-app \
+        v8_context_snapshot.bin \
+        $out/opt/termius
 
-    mkdir -p "$out/bin"
-    cp -R "opt" "$out"
-    cp -R "usr/share" "$out/share"
-    chmod -R g-w "$out"
-    # Desktop file
-    mkdir -p "$out/share/applications"
+    mkdir -p "$out/share/applications" "$out/share/pixmaps/termius-app.png"
     cp "${desktopItem}/share/applications/"* "$out/share/applications"
+    cp meta/gui/icon.png $out/share/pixmaps/termius-app.png
 
     runHook postInstall
   '';
···
   runtimeDependencies = [ (lib.getLib udev) ];
 
   postFixup = ''
-    makeWrapper $out/opt/Termius/termius-app $out/bin/termius-app \
+    makeWrapper $out/opt/termius/termius-app $out/bin/termius-app \
       "''${gappsWrapperArgs[@]}"
   '';