fix: interpolate vars in defer (#1814)

Co-authored-by: Andrey Nering <andreynering@users.noreply.github.com>

task.go

@@ -324,8 +324,13 @@ func (e *Executor) runDeferred(t *ast.Task, call *ast.Call, i int, deferredExitC
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
+	origTask, err := e.GetTask(call)
+	if err != nil {
+		return
+	}
+
 	cmd := t.Cmds[i]
-	vars, _ := e.Compiler.FastGetVariables(t, call)
+	vars, _ := e.Compiler.FastGetVariables(origTask, call)
 	cache := &templater.Cache{Vars: vars}
 	extra := map[string]any{}
 

task_test.go

@@ -1788,7 +1788,7 @@ func TestExitCodeZero(t *testing.T) {
 	require.NoError(t, e.Setup())
 
 	require.NoError(t, e.Run(context.Background(), &ast.Call{Task: "exit-zero"}))
-	assert.Equal(t, "EXIT_CODE=", strings.TrimSpace(buff.String()))
+	assert.Equal(t, "FOO=bar - EXIT_CODE=", strings.TrimSpace(buff.String()))
 }
 
 func TestExitCodeOne(t *testing.T) {
@@ -1802,7 +1802,7 @@ func TestExitCodeOne(t *testing.T) {
 	require.NoError(t, e.Setup())
 
 	require.Error(t, e.Run(context.Background(), &ast.Call{Task: "exit-one"}))
-	assert.Equal(t, "EXIT_CODE=1", strings.TrimSpace(buff.String()))
+	assert.Equal(t, "FOO=bar - EXIT_CODE=1", strings.TrimSpace(buff.String()))
 }
 
 func TestIgnoreNilElements(t *testing.T) {

testdata/exit_code/Taskfile.yml

@@ -7,11 +7,15 @@ vars:
 
 tasks:
   exit-zero:
+    vars:
+      FOO: bar
     cmds:
-      - defer: echo {{.PREFIX}}{{.EXIT_CODE}}
+      - defer: echo FOO={{.FOO}} - {{.PREFIX}}{{.EXIT_CODE}}
       - exit 0
 
   exit-one:
+    vars:
+      FOO: bar
     cmds:
-      - defer: echo {{.PREFIX}}{{.EXIT_CODE}}
+      - defer: echo FOO={{.FOO}} - {{.PREFIX}}{{.EXIT_CODE}}
       - exit 1