Make "checksum" the default method in v3

internal/status/checksum.go

@@ -23,6 +23,10 @@ type Checksum struct {
 
 // IsUpToDate implements the Checker interface
 func (c *Checksum) IsUpToDate() (bool, error) {
+	if len(c.Sources) == 0 {
+		return false, nil
+	}
+
 	checksumFile := c.checksumFilePath()
 
 	data, _ := ioutil.ReadFile(checksumFile)

status.go

@@ -55,7 +55,7 @@ func (e *Executor) getStatusChecker(t *taskfile.Task) (status.Checker, error) {
 		method = e.Taskfile.Method
 	}
 	switch method {
-	case "", "timestamp":
+	case "timestamp":
 		return &status.Timestamp{
 			Dir:       t.Dir,
 			Sources:   t.Sources,

task.go

@@ -169,6 +169,14 @@ func (e *Executor) Setup() error {
 		return fmt.Errorf(`task: output option "%s" not recognized`, e.Taskfile.Output)
 	}
 
+	if e.Taskfile.Method == "" {
+		if v >= 3 {
+			e.Taskfile.Method = "checksum"
+		} else {
+			e.Taskfile.Method = "timestamp"
+		}
+	}
+
 	if v <= 2.1 {
 		err := errors.New(`task: Taskfile option "ignore_error" is only available starting on Taskfile version v2.1`)
 

task_test.go

@@ -630,7 +630,7 @@ func TestWhenDirAttributeItCreatesMissingAndRunsInThatDir(t *testing.T) {
 	}
 
 	// Ensure that the directory to be created doesn't actually exist.
-	_ = os.Remove(toBeCreated)
+	_ = os.RemoveAll(toBeCreated)
 	if _, err := os.Stat(toBeCreated); err == nil {
 		t.Errorf("Directory should not exist: %v", err)
 	}
@@ -641,7 +641,7 @@ func TestWhenDirAttributeItCreatesMissingAndRunsInThatDir(t *testing.T) {
 	assert.Equal(t, expected, got, "Mismatch in the working directory")
 
 	// Clean-up after ourselves only if no error.
-	_ = os.Remove(toBeCreated)
+	_ = os.RemoveAll(toBeCreated)
 }
 
 func TestDisplaysErrorOnUnsupportedVersion(t *testing.T) {

testdata/generates/Taskfile.yml

@@ -8,6 +8,7 @@ tasks:
     dir: sub
     cmds:
       - cat src.txt > '{{.BUILD_DIR}}/abs.txt'
+    method: timestamp
     sources:
       - src.txt
     generates:
@@ -20,6 +21,7 @@ tasks:
     dir: sub
     cmds:
       - cat src.txt > '../rel.txt'
+    method: timestamp
     sources:
       - src.txt
     generates:
@@ -30,6 +32,7 @@ tasks:
     cmds:
       - mkdir -p sub
       - echo "hello world" > sub/src.txt
+    method: timestamp
     status:
       - test -f sub/src.txt
 
@@ -38,6 +41,7 @@ tasks:
     deps: [sub/src.txt]
     cmds:
       - cat sub/src.txt > 'my text file.txt'
+    method: timestamp
     sources:
       - sub/src.txt
     generates: