1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You 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.
-->
<html>
<head>
<meta http-equiv="Content-Language" content="en-us">
<link rel="stylesheet" type="text/css" href="../stylesheets/style.css">
<title>Delete Task</title>
</head>
<body>
<h2><a name="delete">Delete</a></h2>
<h3>Description</h3>
<p>Deletes a single file, a specified directory and all its files and
subdirectories, or a set of files specified by one or more
<a href="../Types/resources.html#collection">resource collection</a>s.
The literal implication of <code><fileset></code> is that
directories are not included; however the removal of empty directories can
be triggered when using nested filesets by setting the
<code>includeEmptyDirs</code> attribute to <i>true</i>. Note that this
attribute is meaningless in the context of any of the various resource
collection types that <i>do</i> include directories, but that no attempt
will be made to delete non-empty directories in any case. Whether a
directory is empty or not is decided by looking into the filesystem -
include or exclude patterns don't apply here.</p>
<p>
If you use this task to delete temporary files created by editors
and it doesn't seem to work, read up on the
<a href="../dirtasks.html#defaultexcludes">default exclusion set</a>
in <strong>Directory-based Tasks</strong>, and see the
<code>defaultexcludes</code> attribute below.
<p>For historical reasons <code><delete dir="x"/></code> is
different from <code><delete><fileset
dir="x"/></delete></code>, it will try to remove everything
inside "x" including "x" itself, not taking default excludes into
account, blindly following all symbolic links. If you need more
control, use a nested <code><fileset></code>.</p>
<h3>Parameters</h3>
<table border="1" cellpadding="2" cellspacing="0">
<tr>
<td valign="top"><b>Attribute</b></td>
<td valign="top"><b>Description</b></td>
<td align="center" valign="top"><b>Required</b></td>
</tr>
<tr>
<td valign="top">file</td>
<td valign="top">The file to delete, specified as either the simple
filename (if the file exists in the current base directory), a
relative-path filename, or a full-path filename.</td>
<td align="center" valign="middle" rowspan="2">At least one of the two,
unless nested resource collections are specified
</tr>
<tr>
<td valign="top">dir</td>
<td valign="top">The directory to delete, including all its files and
subdirectories.<br>
<b>Note:</b> <code>dir</code> is <em>not</em> used
to specify a directory name for <code>file</code>; <code>file</code>
and <code>dir</code> are independent of each other.<br>
<b>WARNING:</b> Do <b>not</b> set <code>dir</code> to
<code>"."</code>, <code>"${basedir}"</code>,
or the full-pathname equivalent unless you truly <em>intend</em> to
recursively remove the entire contents of the current base directory
(and the base directory itself, if different from the current working
directory).</td>
</tr>
<tr>
<td valign="top">verbose</td>
<td valign="top">Whether to show the name of each deleted file.</td>
<td align="center" valign="top">No, default "false"</i></td>
</tr>
<tr>
<td valign="top">quiet</td>
<td valign="top">If the specified file or directory does not exist,
do not display a diagnostic message (unless Apache Ant
has been invoked with the <code>-verbose</code> or
<code>-debug</code> switches) or modify the exit status to
reflect an error.
When set to "true", if a file or directory cannot be deleted,
no error is reported. This setting emulates the
<code>-f</code> option to the Unix <em>rm</em> command.
Setting this to "true" implies setting
<code>failonerror</code> to "false".
</td>
<td align="center" valign="top">No, default "false"</td>
</tr>
<tr>
<td valign="top">failonerror</td>
<td valign="top">Controls whether an error (such as a failure to
delete a file) stops the build or is merely reported to the screen.
Only relevant if <code>quiet</code> is "false".</td>
<td align="center" valign="top">No, default "true"</td>
</tr>
<tr>
<td valign="top">includeemptydirs</td>
<td valign="top">Whether to delete empty directories
when using filesets.</td>
<td align="center" valign="top">No, default "false"</td>
</tr>
<tr>
<td valign="top">includes</td>
<td valign="top"><em>Deprecated.</em> Use resource collections.
Comma- or space-separated list of patterns of
files that must be deleted. All files are relative to the directory
specified in <code>dir</code>.</td>
<td valign="top" align="center">No</td>
</tr>
<tr>
<td valign="top">includesfile</td>
<td valign="top"><em>Deprecated.</em> Use resource collections.
The name of a file. Each line of
this file is taken to be an include pattern.</td>
<td valign="top" align="center">No</td>
</tr>
<tr>
<td valign="top">excludes</td>
<td valign="top"><em>Deprecated.</em> Use resource collections.
Comma- or space-separated list of patterns of
files that must be excluded from the deletion list.
All files are relative to the directory specified in <code>dir</code>.
No files (except default excludes) are excluded when omitted.</td>
<td valign="top" align="center">No</td>
</tr>
<tr>
<td valign="top">excludesfile</td>
<td valign="top"><em>Deprecated.</em> Use resource collections.
The name of a file. Each line of
this file is taken to be an exclude pattern</td>
<td valign="top" align="center">No</td>
</tr>
<tr>
<td valign="top">defaultexcludes</td>
<td valign="top"><em>Deprecated.</em> Use resource collections.
Whether to use <a href="../dirtasks.html#defaultexcludes">
default excludes.</a></td>
<td align="center" valign="top">No, default "true"</td>
</tr>
<tr>
<td valign="top">deleteonexit</td>
<td valign="top">
Indicates whether to use File#deleteOnExit() if there is a
failure to delete a file, this causes the jvm to attempt
to delete the file when the jvm process is terminating.
<em>Since Ant 1.6.2</em></td>
<td align="center" valign="top">No, default "false"</td>
</tr>
<tr>
<td valign="top">removeNotFollowedSymlinks</td>
<td valign="top">
Whether symbolic links (not the files/directories they link to)
should be removed if they haven't been followed because
followSymlinks was false or the maximum number of symbolic links
was too big.
<em>Since Ant 1.8.0</em></td>
<td align="center" valign="top">No, default "false"</td>
</tr>
<tr>
<td valign="top">performGCOnFailedDelete</td>
<td valign="top">
If Ant fails to delete a file or directory it will retry the
operation once. If this flag is set to true it will perform a
garbage collection before retrying the delete.<br/>
Setting this flag to true is known to resolve some problems on
Windows (where it defaults to true) but also for directory trees
residing on an NFS share.
<em>Since Ant 1.8.3</em></td>
<td align="center" valign="top">No, default "true" on
Windows and "true" on any other OS.</td>
</tr>
</table>
<h3>Examples</h3>
<pre> <delete file="/lib/ant.jar"/></pre>
<p>deletes the file <code>/lib/ant.jar</code>.</p>
<pre> <delete dir="lib"/></pre>
<p>deletes the <code>lib</code> directory, including all files
and subdirectories of <code>lib</code>.</p>
<pre> <delete>
<fileset dir="." includes="**/*.bak"/>
</delete>
</pre>
<p>deletes all files with the extension <code>.bak</code> from the current directory
and any subdirectories.</p>
<pre> <delete includeEmptyDirs="true">
<fileset dir="build"/>
</delete>
</pre>
<p>deletes all files and subdirectories of <code>build</code>, including
<code>build</code> itself.</p>
<pre> <delete includeemptydirs="true">
<fileset dir="build" includes="**/*"/>
</delete>
</pre>
<p>deletes all files and subdirectories of <code>build</code>, without
<code>build</code> itself.</p>
<pre> <delete includeemptydirs="true">
<fileset dir="src" includes="**/.svn/" defaultexcludes="false"/>
</delete>
</pre>
<p>deletes the subversion metadata directories under <code>src</code>. Because <code>.svn</code>
is on of the <a href="../dirtasks.html#defaultexcludes">default excludes</a> you have to use the
<code>defaultexcludes</code> flag, otherwise Ant wont delete these directories and the files in it.</p>
</body>
</html>
|
