| // Copyright 2017 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.skylark.skylint; |
| |
| import java.io.IOException; |
| import java.nio.file.NoSuchFileException; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** The main class for the skylint binary. */ |
| public class Skylint { |
| public static void main(String[] args) { |
| Linter linter = new Linter(); |
| List<Path> paths = new ArrayList<>(); |
| for (String arg : args) { |
| if (arg.equals("--single-file")) { |
| linter.setSingleFileMode(); |
| } else if (arg.startsWith("--disable-categories=")) { |
| for (String categoryName : parseArgumentList(arg, "--disable-categories=")) { |
| linter.disableCategory(categoryName); |
| } |
| } else if (arg.startsWith("--disable-checks=")) { |
| for (String checkName : parseArgumentList(arg, "--disable-checks=")) { |
| linter.disableCheck(checkName); |
| } |
| } else { |
| paths.add(Paths.get(arg)); |
| } |
| } |
| boolean issuesFound = false; |
| for (Path path : paths) { |
| List<Issue> issues; |
| try { |
| issues = linter.lint(path); |
| } catch (IOException e) { |
| issuesFound = true; |
| if (e instanceof NoSuchFileException) { |
| System.err.println("File not found: " + path); |
| } else { |
| System.err.println("Error trying to read " + path); |
| e.printStackTrace(); |
| } |
| continue; |
| } |
| if (!issues.isEmpty()) { |
| issuesFound = true; |
| for (Issue issue : issues) { |
| System.out.println(issue.prettyPrint(path.toString())); |
| } |
| } |
| } |
| System.exit(issuesFound ? 1 : 0); |
| } |
| |
| /** Removes the prefix from the argument and returns the list of comma-separated items. */ |
| private static List<String> parseArgumentList(String arg, String prefix) { |
| if (!arg.startsWith(prefix)) { |
| throw new IllegalArgumentException("Argument doesn't start with prefix " + prefix); |
| } |
| List<String> list = new ArrayList<>(); |
| String[] items = arg.substring(prefix.length()).split(","); |
| for (String item : items) { |
| item = item.trim(); |
| if (item.isEmpty()) { |
| continue; |
| } |
| list.add(item); |
| } |
| return list; |
| } |
| } |