feat: add conditional execution for tasks and commands (#2564)

executor_test.go

@@ -1105,3 +1105,65 @@ func TestFailfast(t *testing.T) {
 		)
 	})
 }
+
+func TestIf(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name    string
+		task    string
+		vars    map[string]any
+		verbose bool
+	}{
+		// Basic command-level if
+		{name: "cmd-if-true", task: "cmd-if-true"},
+		{name: "cmd-if-false", task: "cmd-if-false"},
+
+		// Task-level if
+		{name: "task-if-true", task: "task-if-true"},
+		{name: "task-if-false", task: "task-if-false", verbose: true},
+
+		// Task call with if
+		{name: "task-call-if-true", task: "task-call-if-true"},
+		{name: "task-call-if-false", task: "task-call-if-false", verbose: true},
+
+		// Go template conditions
+		{name: "template-eq-true", task: "template-eq-true"},
+		{name: "template-eq-false", task: "template-eq-false", verbose: true},
+		{name: "template-ne", task: "template-ne"},
+		{name: "template-bool-true", task: "template-bool-true"},
+		{name: "template-bool-false", task: "template-bool-false"},
+		{name: "template-direct-true", task: "template-direct-true"},
+		{name: "template-direct-false", task: "template-direct-false"},
+		{name: "template-and", task: "template-and"},
+		{name: "template-or", task: "template-or"},
+
+		// CLI variable override
+		{name: "template-cli-var", task: "template-cli-var", vars: map[string]any{"MY_VAR": "yes"}},
+
+		// Task-level if with template
+		{name: "task-level-template", task: "task-level-template"},
+		{name: "task-level-template-false", task: "task-level-template-false", verbose: true},
+
+		// For loop with if
+		{name: "if-in-for-loop", task: "if-in-for-loop", verbose: true},
+	}
+
+	for _, test := range tests {
+		opts := []ExecutorTestOption{
+			WithName(test.name),
+			WithExecutorOptions(
+				task.WithDir("testdata/if"),
+				task.WithSilent(true),
+				task.WithVerbose(test.verbose),
+			),
+			WithTask(test.task),
+		}
+		if test.vars != nil {
+			for k, v := range test.vars {
+				opts = append(opts, WithVar(k, v))
+			}
+		}
+		NewExecutorTest(t, opts...)
+	}
+}