Only run task once for #53

internal/hash/hash.go

@@ -0,0 +1,23 @@
+package hash
+
+import (
+	"fmt"
+
+	"github.com/go-task/task/v3/taskfile"
+	"github.com/mitchellh/hashstructure/v2"
+)
+
+type HashFunc func(*taskfile.Task) (string, error)
+
+func Empty(*taskfile.Task) (string, error) {
+	return "", nil
+}
+
+func Name(t *taskfile.Task) (string, error) {
+	return t.Task, nil
+}
+
+func Hash(t *taskfile.Task) (string, error) {
+	h, err := hashstructure.Hash(t, hashstructure.FormatV2, nil)
+	return fmt.Sprintf("%s:%d", t.Task, h), err
+}