yarn2nix: allow setting doDist by calling packages

pkgs/applications/networking/instant-messengers/element/element-desktop.nix

@@ -92,10 +92,7 @@ mkYarnPackage rec {
   '';
 
   # Do not attempt generating a tarball for element-desktop again.
-  # note: `doDist = false;` does not work.
-  distPhase = ''
-    true
-  '';
+  doDist = false;
 
   # The desktop item properties should be kept in sync with data from upstream:
   # https://github.com/vector-im/element-desktop/blob/develop/package.json

pkgs/applications/networking/instant-messengers/element/element-web.nix

@@ -72,10 +72,7 @@ mkYarnPackage rec {
   '';
 
   # Do not attempt generating a tarball for element-web again.
-  # note: `doDist = false;` does not work.
-  distPhase = ''
-    true
-  '';
+  doDist = false;
 
   meta = {
     description = "A glossy Matrix collaboration client for the web";

pkgs/applications/office/micropad/default.nix

@@ -72,10 +72,7 @@ in
     '';
 
     # Do not attempt generating a tarball for micropad again.
-    # note: `doDist = false;` does not work.
-    distPhase = ''
-      true
-    '';
+    doDist = false;
 
     # The desktop item properties should be kept in sync with data from upstream:
     # https://github.com/MicroPad/MicroPad-Electron/blob/master/package.json

pkgs/development/tools/yarn2nix-moretea/yarn2nix/default.nix

@@ -359,7 +359,7 @@ in rec {
         runHook postInstall
       '';
 
-      doDist = true;
+      doDist = attrs.doDist or true;
 
       distPhase = attrs.distPhase or ''
         # pack command ignores cwd option

pkgs/servers/matrix-appservice-discord/default.nix

@@ -62,10 +62,7 @@ in mkYarnPackage rec {
   '';
 
   # don't generate the dist tarball
-  # (`doDist = false` does not work in mkYarnPackage)
-  distPhase = ''
-    true
-  '';
+  doDist = false;
 
   passthru = {
     nodeAppDir = "libexec/${pname}/deps/${pname}";