deft build: better error when no library specified

dylan-lang · Jan 9, 2025 · dd4c8c2 · dd4c8c2
1 parent 6dae732
commit dd4c8c2
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/sources/commands/build.dylan b/sources/commands/build.dylan
@@ -51,8 +51,13 @@ define method execute-subcommand
   if (empty?(library-names))
     library-names
       := list(ws/workspace-default-library-name(ws)
-                | error("No libraries found in workspace and no"
-                          " default libraries configured."));
+                | if (all?)
+                    error("No libraries found in workspace and no"
+                            " default libraries configured.");
+                  else
+                    error("Please specify a library to build, use --all,"
+                            " or configure a default library.");
+                  end);
   end;
   for (name in library-names)
     // Let the shell locate dylan-compiler...