Fix

.deadlines.yml

@@ -1,5 +1,5 @@
 - group:    Hello World
-  start:    13-02-2020 18:00
+  start:    12-02-2020 18:00
   deadline: 23-02-2020 23:59
   tasks:
     - task: sum

tools/testtool/commands/deadlines.go

@@ -5,6 +5,7 @@ import (
 	"io/ioutil"
 	"path/filepath"
 	"sort"
+	"strings"
 	"time"
 
 	"gopkg.in/yaml.v2"
@@ -73,29 +74,17 @@ func findChangedTasks(d Deadlines, files []string) []string {
 	tasks := map[string]struct{}{}
 
 	for _, f := range files {
-		for {
-			dir, _ := filepath.Split(f)
-			if dir == "" {
-				break
-			}
-
-			f = dir
-		}
-
-		if f == "" {
+		components := strings.Split(f, string(filepath.Separator))
+		if len(components) == 0 {
 			continue
 		}
 
-		group, task := d.FindTask(f)
+		_, task := d.FindTask(components[0])
 		if task == nil {
 			continue
 		}
 
-		if !group.IsOpen() {
-			continue
-		}
-
-		tasks[f] = struct{}{}
+		tasks[task.Name] = struct{}{}
 	}
 
 	var l []string

tools/testtool/commands/deadlines_test.go

@@ -15,3 +15,11 @@ func TestDeadlines(t *testing.T) {
 	require.NotNil(t, sum)
 	require.Equal(t, "sum", sum.Name)
 }
+
+func TestDetectChange(t *testing.T) {
+	d, err := loadDeadlines("../../../.deadlines.yml")
+	require.NoError(t, err)
+
+	changed := findChangedTasks(d, []string{"sum/sum.go", "testtool/foo.go", "README.md"})
+	require.Equal(t, []string{"sum"}, changed)
+}

tools/testtool/commands/grade.go

@@ -35,6 +35,11 @@ func grade() error {
 
 	var failed bool
 	for _, task := range changedTasks {
+		group, _ := deadlines.FindTask(task)
+		if !group.IsOpen() {
+			log.Printf("skipping task %s: not released yet", task)
+		}
+
 		log.Printf("testing task %s", task)
 
 		var testFailed bool