only use the global script variables when it's safe to do; provide an option to disable using them altogether

Author: line0

macros/l0.DependencyControl.Toolbox.moon

@@ -99,7 +99,8 @@ install = ->
             for channel, rec in pairs channels
                 item = "%s v%s%s"\format rec.name, rec.version, rec.default and "" or " [#{channel}]"
                 list[#list+1] = item
-                map[item] = :namespace, :channel, feed: rec.feed, name: rec.name, virtual: true, moduleName: rec.moduleName
+                map[item] = { :namespace, :channel, feed: rec.feed, name: rec.name, virtual: true,
+                              moduleName: rec.moduleName, noReadGlobalScriptVars: true }
 
         return list, map
 

modules/DependencyControl.moon

@@ -72,7 +72,7 @@ class DependencyControl
     new: (args)=>
         {@requiredModules, moduleName:@moduleName, configFile:configFile, virtual:@virtual, :name,
          description:@description, url:@url, feed:@feed, unmanaged:@unmanaged, :namespace,
-         author:@author, :version, configFile:@configFile} = args
+         author:@author, :version, configFile:@configFile, :noReadGlobalScriptVars} = args
 
         if @moduleName
             @namespace = @moduleName
@@ -81,10 +81,15 @@ class DependencyControl
             @createDummyRef! unless @virtual or @unmanaged
 
         else
-            @name or= @virtual and namespace or script_name
-            @description or= script_description
-            @author or= script_author
-            version or= script_version
+            if @virtual or noReadGlobalScriptVars
+                @name = name or namespace
+                @namespace = namespace
+                version or= 0
+            else
+                @name = name or script_name
+                @description or= script_description
+                @author or= script_author
+                version or= script_version
 
             @namespace = namespace or script_namespace
             assert not @unmanaged, msgs.new.badRecordError\format msgs.new.badRecord.noUnmanagedMacros
@@ -101,7 +106,7 @@ class DependencyControl
 
         @configFile = configFile or "#{@namespace}.json"
         @automationDir = @@automationDir[@type]
-        @version, err = @getVersionNumber version or @virtual and -1
+        @version, err = @getVersionNumber version
         assert @version, msgs.new.badRecordError\format msgs.new.badRecord.badVersion\format err
 
         @requiredModules or= {}