Call ReplaceVars() to resolve Ref's for imported global vars.

compiler.go

@@ -114,6 +114,9 @@ func (c *Compiler) getVariables(t *ast.Task, call *Call, evaluateShVars bool) (*
 			return nil, err
 		}
 	}
+	// Resolve any outstanding 'Ref' values in global vars (esp. globals from imported Taskfiles).
+	c.TaskfileVars = templater.ReplaceVars(c.TaskfileVars, &templater.Cache{Vars: result})
+
 	if t != nil {
 		for k, v := range t.IncludeVars.All() {
 			if err := rangeFunc(k, v); err != nil {

executor_test.go

@@ -905,6 +905,10 @@ func TestReference(t *testing.T) {
 			name: "reference using templating resolver and dynamic var",
 			call: "ref-resolver-sh",
 		},
+		{
+			name: "reference using templating resolver and global var",
+			call: "ref-global",
+		},
 	}
 
 	for _, test := range tests {

testdata/var_references/Taskfile.yml

@@ -2,13 +2,17 @@ version: '3'
 
 vars:
   GLOBAL_VAR: [1, 2, 2, 2, 3, 3, 4, 5]
+  GLOBAL_FOO:
+    ref: .GLOBAL_BAR
+  GLOBAL_BAR: bar
 
 tasks:
   default:
     - task: ref-cmd
     - task: ref-dep
     - task: ref-resolver
     - task: ref-resolver-sh
+    - task: ref-global
 
   ref-cmd:
     vars:
@@ -72,3 +76,13 @@ tasks:
           {{- else}} and {{$child.name -}}
           {{- end -}}
         {{- end -}}"
+
+  ref-global:
+    vars:
+      TASK_FUBAR:
+        ref: .GLOBAL_FOO
+    cmds:
+      - echo "GLOBAL_FOO={{.GLOBAL_FOO}}"
+      - echo "GLOBAL_BAR={{.GLOBAL_BAR}}"
+      - echo "TASK_FUBAR={{.TASK_FUBAR}}"
+    silent: true

testdata/var_references/testdata/TestReference-reference_using_templating_resolver_and_global_var.golden

@@ -0,0 +1,3 @@
+GLOBAL_FOO=bar
+GLOBAL_BAR=bar
+TASK_FUBAR=bar