boot v2 progress: disks, ssh, success...

filter.go

@@ -0,0 +1,22 @@
+package main
+
+func filter[T any](values []T, accept func(T) bool) []T {
+	r := make([]T, 0, len(values))
+
+	for _, v := range values {
+		if accept(v) {
+			r = append(r, v)
+		}
+	}
+
+	return r
+}
+
+func contains[T any](values []T, accept func(T) bool) bool {
+	for _, v := range values {
+		if accept(v) {
+			return true
+		}
+	}
+	return false
+}