| // Copyright 2016 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package com.google.devtools.build.lib.util.io; |
| |
| import com.google.errorprone.annotations.CanIgnoreReturnValue; |
| import java.io.IOException; |
| |
| /** |
| * Class providing the AnsiTerminalWriter interface from a terminal while additionally counting the |
| * number of written lines. |
| */ |
| public class LineCountingAnsiTerminalWriter implements AnsiTerminalWriter { |
| |
| private final AnsiTerminal terminal; |
| private int lineCount; |
| |
| public LineCountingAnsiTerminalWriter(AnsiTerminal terminal) { |
| this.terminal = terminal; |
| this.lineCount = 0; |
| } |
| |
| @CanIgnoreReturnValue |
| @Override |
| public AnsiTerminalWriter append(String text) throws IOException { |
| terminal.writeString(text); |
| return this; |
| } |
| |
| @CanIgnoreReturnValue |
| @Override |
| public AnsiTerminalWriter newline() throws IOException { |
| terminal.writeString(System.lineSeparator()); |
| lineCount++; |
| return this; |
| } |
| |
| @CanIgnoreReturnValue |
| @Override |
| public AnsiTerminalWriter okStatus() throws IOException { |
| terminal.textGreen(); |
| return this; |
| } |
| |
| @CanIgnoreReturnValue |
| @Override |
| public AnsiTerminalWriter failStatus() throws IOException { |
| terminal.textRed(); |
| terminal.textBold(); |
| return this; |
| } |
| |
| @CanIgnoreReturnValue |
| @Override |
| public AnsiTerminalWriter normal() throws IOException { |
| terminal.resetTerminal(); |
| return this; |
| } |
| |
| public int getWrittenLines() throws IOException { |
| return lineCount; |
| } |
| } |