1 /*
2 * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
3 * and other copyright owners as documented in the project's IP log.
4 *
5 * This program and the accompanying materials are made available
6 * under the terms of the Eclipse Distribution License v1.0 which
7 * accompanies this distribution, is reproduced below, and is
8 * available at http://www.eclipse.org/org/documents/edl-v10.php
9 *
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials provided
22 * with the distribution.
23 *
24 * - Neither the name of the Eclipse Foundation, Inc. nor the
25 * names of its contributors may be used to endorse or promote
26 * products derived from this software without specific prior
27 * written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43
44 package org.eclipse.jgit.pgm.opt;
45
46 import java.util.ArrayList;
47 import java.util.List;
48
49 import org.eclipse.jgit.pgm.internal.CLIText;
50 import org.eclipse.jgit.treewalk.filter.PathFilter;
51 import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
52 import org.eclipse.jgit.treewalk.filter.TreeFilter;
53 import org.kohsuke.args4j.CmdLineException;
54 import org.kohsuke.args4j.CmdLineParser;
55 import org.kohsuke.args4j.Option;
56 import org.kohsuke.args4j.OptionDef;
57 import org.kohsuke.args4j.spi.OptionHandler;
58 import org.kohsuke.args4j.spi.Parameters;
59 import org.kohsuke.args4j.spi.Setter;
60
61 /**
62 * Create a {@link TreeFilter} to patch math names.
63 * <p>
64 * This handler consumes all arguments to the end of the command line, and is
65 * meant to be used on an {@link Option} of name "--".
66 */
67 public class PathTreeFilterHandler extends OptionHandler<TreeFilter> {
68 /**
69 * Create a new handler for the command name.
70 * <p>
71 * This constructor is used only by args4j.
72 *
73 * @param parser
74 * @param option
75 * @param setter
76 */
77 public PathTreeFilterHandler(final CmdLineParser parser,
78 final OptionDef option, final Setter<? super TreeFilter> setter) {
79 super(parser, option, setter);
80 }
81
82 @Override
83 public int parseArguments(final Parameters params) throws CmdLineException {
84 final List<PathFilter> filters = new ArrayList<>();
85 for (int idx = 0;; idx++) {
86 final String path;
87 try {
88 path = params.getParameter(idx);
89 } catch (CmdLineException cle) {
90 break;
91 }
92 filters.add(PathFilter.create(path));
93 }
94
95 if (filters.size() == 0)
96 return 0;
97 if (filters.size() == 1) {
98 setter.addValue(filters.get(0));
99 return 1;
100 }
101 setter.addValue(PathFilterGroup.create(filters));
102 return filters.size();
103 }
104
105 @Override
106 public String getDefaultMetaVariable() {
107 return CLIText.get().metaVar_paths;
108 }
109 }