[WIP] Allow shorter syntax for tasks with default configuration

internal/taskfile/task.go

@@ -20,5 +20,5 @@ type Task struct {
 	Silent       bool
 	Method       string
 	Prefix       string
-	IgnoreError  bool `yaml:"ignore_error"`
+	IgnoreError  bool
 }

internal/taskfile/taskfile.go

@@ -40,3 +40,61 @@ func (tf *Taskfile) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	}
 	return nil
 }
+
+func (t *Task) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	var task struct {
+		Task          string
+		Cmds          []*Cmd
+		Deps          []*Dep
+		Desc          string
+		Summary       string
+		Sources       []string
+		Generates     []string
+		Status        []string
+		Preconditions []*Precondition
+		Dir           string
+		Vars          Vars
+		Env           Vars
+		Silent        bool
+		Method        string
+		Prefix        string
+		IgnoreError   bool `yaml:"ignore_error"`
+	}
+
+	err := unmarshal(&task)
+	if err != nil {
+		var short []string
+		err := unmarshal(&short)
+		if err != nil {
+			return err
+		}
+
+		for _, cmd := range short {
+			t.Cmds = append(t.Cmds, &Cmd{
+				Cmd: cmd,
+			})
+
+		}
+
+		return nil
+	}
+
+	t.Task = task.Task
+	t.Cmds = task.Cmds
+	t.Deps = task.Deps
+	t.Desc = task.Desc
+	t.Summary = task.Summary
+	t.Sources = task.Sources
+	t.Generates = task.Generates
+	t.Status = task.Status
+	t.Preconditions = task.Preconditions
+	t.Dir = task.Dir
+	t.Vars = task.Vars
+	t.Env = task.Env
+	t.Silent = task.Silent
+	t.Method = task.Method
+	t.Prefix = task.Prefix
+	t.IgnoreError = task.IgnoreError
+
+	return nil
+}

task_test.go

@@ -641,6 +641,20 @@ func TestWhenDirAttributeItCreatesMissingAndRunsInThatDir(t *testing.T) {
 	_ = os.Remove(toBeCreated)
 }
 
+func TestShortTaskNotation(t *testing.T) {
+	const dir = "testdata/short_task_notation/"
+
+	var buff bytes.Buffer
+	e := task.Executor{
+		Dir:     dir,
+		Stdout:  &buff,
+		Stderr:  &buff,
+	}
+	assert.NoError(t, e.Setup())
+	assert.NoError(t, e.Run(context.Background(), taskfile.Call{Task: "run"}))
+	assert.Equal(t, readTestFixture(t, dir, "expected_output.txt"), buff.String())
+}
+
 func TestDisplaysErrorOnUnsupportedVersion(t *testing.T) {
 	e := task.Executor{
 		Dir:    "testdata/version/v1",
@@ -650,5 +664,4 @@ func TestDisplaysErrorOnUnsupportedVersion(t *testing.T) {
 	err := e.Setup()
 	assert.Error(t, err)
 	assert.Equal(t, "task: Taskfile versions prior to v2 are not supported anymore", err.Error())
-
 }

testdata/short_task_notation/Taskfile.yml

@@ -0,0 +1,16 @@
+version: '3'
+
+tasks:
+
+  run:
+    cmds:
+      - task: single-cmd
+      - task: multiple-cmds
+
+  single-cmd:
+    cmds:
+      - echo "single-line-short-task"
+
+  multiple-cmds:
+    - echo "multiple-cmds-short-tasks-1"
+    - echo "multiple-cmds-short-tasks-2"

testdata/short_task_notation/expected_output.txt

@@ -0,0 +1,6 @@
+task: echo "single-line-short-task"
+single-line-short-task
+task: echo "multiple-cmds-short-tasks-1"
+multiple-cmds-short-tasks-1
+task: echo "multiple-cmds-short-tasks-2"
+multiple-cmds-short-tasks-2