1 package org.codehaus.plexus.util.cli.shell;
2
3 /*
4 * Copyright The Codehaus Foundation.
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 import java.util.Arrays;
20 import java.util.List;
21
22 /**
23 * <p>
24 * Implementation to call the CMD Shell present on Windows NT, 2000 and XP
25 * </p>
26 *
27 * @author <a href="mailto:carlos@apache.org">Carlos Sanchez</a>
28 * @since 1.2
29 *
30 */
31 public class CmdShell
32 extends Shell
33 {
34 public CmdShell()
35 {
36 setShellCommand( "cmd.exe" );
37 setQuotedExecutableEnabled( true );
38 setShellArgs( new String[] { "/X", "/C" } );
39 }
40
41 /**
42 * <p>
43 * Specific implementation that quotes all the command line.
44 * </p>
45 * <p>
46 * Workaround for http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6468220
47 * </p>
48 * <p>
49 * From cmd.exe /? output:
50 * </p>
51 *
52 * <pre>
53 * If /C or /K is specified, then the remainder of the command line after
54 * the switch is processed as a command line, where the following logic is
55 * used to process quote (") characters:
56 *
57 * 1. If all of the following conditions are met, then quote characters
58 * on the command line are preserved:
59 *
60 * - no /S switch
61 * - exactly two quote characters
62 * - no special characters between the two quote characters,
63 * where special is one of: &<>()@ˆ|
64 * - there are one or more whitespace characters between the
65 * the two quote characters
66 * - the string between the two quote characters is the name
67 * of an executable file.
68 *
69 * 2. Otherwise, old behavior is to see if the first character is
70 * a quote character and if so, strip the leading character and
71 * remove the last quote character on the command line, preserving
72 * any text after the last quote character.
73 * </pre>
74 * <p>
75 * Always quoting the entire command line, regardless of these conditions appears to make Windows processes invoke
76 * successfully.
77 * </p>
78 */
79 @Override
80 public List<String> getCommandLine( String executable, String[] arguments )
81 {
82 StringBuilder sb = new StringBuilder();
83 sb.append( "\"" );
84 sb.append( super.getCommandLine( executable, arguments ).get( 0 ) );
85 sb.append( "\"" );
86
87 return Arrays.asList( new String[] { sb.toString() } );
88 }
89 }