bake: correctly remove duplicated secrets

Signed-off-by: CrazyMax <[email protected]>

Author: crazy-max

util/buildflags/secrets.go

@@ -27,7 +27,7 @@ func (s Secrets) Normalize() Secrets {
 	if len(s) == 0 {
 		return nil
 	}
-	return removeDupes(s)
+	return removeSecretDupes(s)
 }
 
 func (s Secrets) ToPB() []*controllerapi.Secret {
@@ -155,3 +155,17 @@ func parseSecret(value string) (*controllerapi.Secret, error) {
 	}
 	return s.ToPB(), nil
 }
+
+func removeSecretDupes(s []*Secret) []*Secret {
+	var res []*Secret
+	m := map[string]int{}
+	for _, sec := range s {
+		if i, ok := m[sec.ID]; ok {
+			res[i] = sec
+		} else {
+			m[sec.ID] = len(res)
+			res = append(res, sec)
+		}
+	}
+	return res
+}

util/buildflags/secrets_test.go

@@ -81,4 +81,17 @@ func TestSecrets(t *testing.T) {
 		result := actual.Equals(expected)
 		require.True(t, result.True())
 	})
+
+	t.Run("RemoveDupes", func(t *testing.T) {
+		secrets := Secrets{
+			{ID: "mysecret", Env: "FOO"},
+			{ID: "mysecret", Env: "BAR"},
+			{ID: "mysecret2", Env: "BAZ"},
+		}.Normalize()
+
+		expected := `[{"id":"mysecret","env":"BAR"},{"id":"mysecret2","env":"BAZ"}]`
+		actual, err := json.Marshal(secrets)
+		require.NoError(t, err)
+		require.JSONEq(t, expected, string(actual))
+	})
 }