Mercurial > jhg

comparison hg4j-cli/src/main/java/org/tmatesoft/hg/console/Options.java @ 213:6ec4af642ba8 gradle

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Project uses Gradle for build - actual changes
author Alexander Kitaev <kitaev@gmail.com>
date Tue, 10 May 2011 10:52:53 +0200
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212:edb2e2829352 213:6ec4af642ba8
1 /*
2 * Copyright (c) 2011 TMate Software Ltd
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * For information on how to redistribute this software under
14 * the terms of a license other than GNU General Public License
15 * contact TMate Software at support@hg4j.com
16 */
17 package org.tmatesoft.hg.console;
18
19 import java.util.HashMap;
20 import java.util.LinkedList;
21 import java.util.List;
22 import java.util.Map;
23
24 import org.tmatesoft.hg.repo.HgLookup;
25 import org.tmatesoft.hg.repo.HgRepository;
26
27 /**
28 * Parse command-line options. Primitive implementation that recognizes options with 0 or 1 argument.
29 *
30 * @author Artem Tikhomirov
31 * @author TMate Software Ltd.
32 */
33 class Options {
34
35 public final Map<String,List<String>> opt2values = new HashMap<String, List<String>>();
36
37 public boolean getBoolean(String... aliases) {
38 return getBoolean(false, aliases);
39 }
40
41 public boolean getBoolean(boolean def, String... aliases) {
42 for (String s : aliases) {
43 if (opt2values.containsKey(s)) {
44 return true;
45 }
46 }
47 return def;
48 }
49
50 public String getSingle(String... aliases) {
51 String rv = null;
52 for (String s : aliases) {
53 List<String> values = opt2values.get(s);
54 if (values != null && values.size() > 0) {
55 rv = values.get(values.size() - 1); // take last one, most recent
56 }
57 }
58 return rv;
59 }
60
61 public int getSingleInt(int def, String... aliases) {
62 String r = getSingle(aliases);
63 if (r == null) {
64 return def;
65 }
66 return Integer.parseInt(r);
67 }
68
69 public List<String> getList(String... aliases) {
70 LinkedList<String> rv = new LinkedList<String>();
71 for (String s : aliases) {
72 List<String> values = opt2values.get(s);
73 if (values != null) {
74 rv.addAll(values);
75 }
76 }
77 return rv;
78 }
79
80 public HgRepository findRepository() throws Exception {
81 String repoLocation = getSingle("-R", "--repository");
82 if (repoLocation != null) {
83 return new HgLookup().detect(repoLocation);
84 }
85 return new HgLookup().detectFromWorkingDir();
86 }
87
88
89 public static Options parse(String[] commandLineArgs) {
90 Options rv = new Options();
91 List<String> values = new LinkedList<String>();
92 rv.opt2values.put("", values); // values with no options
93 for (String arg : commandLineArgs) {
94 if (arg.charAt(0) == '-') {
95 // option
96 if (arg.length() == 1) {
97 throw new IllegalArgumentException("Bad option: -");
98 }
99 values = rv.opt2values.get(arg);
100 if (values == null) {
101 rv.opt2values.put(arg, values = new LinkedList<String>());
102 }
103 // next value, if any, gets into the values list for arg option.
104 } else {
105 values.add(arg);
106 values = rv.opt2values.get("");
107 }
108 }
109 return rv;
110 }
111 }