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<head>
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<title>Concat</title>
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<body>
<h2 id="concat">Concat</h2>
<h3>Description</h3>
<p>Concatenates one or more <a href="../Types/resources.html">resource</a>s to a single file or
to the console. The destination file will be created if it does not exist unless the resource
list is empty and <var>ignoreempty</var> is <q>true</q>.</p>
<p><em>Since Apache Ant 1.7.1</em>, this task can be used as
a <a href="../Types/resources.html#collection">resource collection</a> that will return
exactly one <a href="../Types/resources.html">resource</a>.</p>
<p><a href="../Types/resources.html#collection">Resource collections</a> are used to select
which resources are to be concatenated. There is no singular attribute to specify a single
resource to <code>concat</code>.</p>
<h3>Parameters</h3>
<table class="attr">
<tr>
<th scope="col">Attribute</th>
<th scope="col">Description</th>
<th scope="col">Required</th>
</tr>
<tr>
<td>destfile</td>
<td>The destination file for the concatenated stream. If not specified the console will be
used instead.</td>
<td>No</td>
</tr>
<tr>
<td>append</td>
<td>Specifies whether or not the file specified by <var>destfile</var> should be
appended.</td>
<td>No; defaults to <q>no</q></td>
</tr>
<tr>
<td>force</td>
<td>Specifies whether or not the file specified by <var>destfile</var> should be written to
even if it is newer than all source files. <em><u>Deprecated</u>, use
the <var>overwrite</var> attribute instead.</em></td>
<td>No; defaults to <q>yes</q></td>
</tr>
<tr>
<td>overwrite</td>
<td>Specifies whether or not the file specified by <var>destfile</var> should be written to
even if it is newer than all source files. <em>Since Ant 1.8.2</em>.</td>
<td>No; defaults to <q>yes</q></td>
</tr>
<tr>
<td>forceReadOnly</td>
<td>Overwrite read-only destination files. <em>Since Ant 1.8.2</em></td>
<td>No; defaults to <q>false</q></td>
</tr>
<tr>
<td>encoding</td>
<td>Specifies the encoding for the input files. Please
see <a href="https://docs.oracle.com/javase/8/docs/technotes/guides/intl/encoding.doc.html"
target="_top">Supported Encodings</a> for a list of possible values.</td>
<td>No; defaults to default JVM character encoding</td>
</tr>
<tr>
<td>outputencoding</td>
<td>The encoding to use when writing the output file. <em>Since Ant 1.6</em>.</td>
<td>No; defaults to <var>encoding</var> if set or default JVM character encoding
otherwise</td>
</tr>
<tr>
<td>fixlastline</td>
<td>Specifies whether or not to check if each file concatenated is terminated by a new
line. If this attribute is <q>yes</q> a new line will be appended to the stream if the
file did not end in a new line. <em>Since Ant 1.6</em>. This attribute does not apply to
embedded text.</td>
<td>No; defaults to <q>no</q></td>
</tr>
<tr>
<td>eol</td>
<td>Specifies what the end of line character are for use by the fixlastline
attribute. <em>Since Ant 1.6</em> Valid values for this property are:
<ul>
<li><q>cr</q>: a single CR</li>
<li><q>lf</q>: a single LF</li>
<li><q>crlf</q>: the pair CRLF</li>
<li><q>mac</q>: a single CR</li>
<li><q>unix</q>: a single LF</li>
<li><q>dos</q>: the pair CRLF</li>
</ul></td>
<td>No; default is platform dependent: <q>lf</q> for Unix, <q>crlf</q> for DOS family
(including Windows), <q>cr</q> for Mac OS 9 or earlier</td></tr>
<tr>
<td>binary</td>
<td><em>Since Ant 1.6.2</em> If this attribute is set to <q>true</q>, the task concatenates
the files in a byte by byte fashion. If this attribute is <q>false</q>, concat will not
normally work for binary files due to character encoding issues. If this option is set
to <q>true</q>, the <var>destfile</var> attribute must be set, and the task cannot used
nested text. Also the
attributes <var>encoding</var>, <var>outputencoding</var>, <var>filelastline</var> cannot
be used.</td>
<td>No; default is <q>false</q></td>
</tr>
<tr>
<td>ignoreempty</td>
<td><em>Since Ant 1.8.0</em> Specifies whether or not the file specified
by <var>destfile</var> should be created if the source resource list is empty.
</td>
<td>No; defaults to <q>true</q></td>
</tr>
<tr>
<td>resourcename</td>
<td><em>Since Ant 1.8.3</em> Specifies the name reported if this task is exposed as
a <a href="../Types/resources.html">resource</a>.
</td>
<td>No</td>
</tr>
</table>
<h3>Parameters specified as nested elements</h3>
<h4>resource collection</h4>
<p><em>Since Ant 1.7</em>.</p>
<p>Any of the various <a href="../Types/resources.html#collection">resource collection</a> types
can specify the resources to be concatenated.</p>
<h4>filterchain</h4>
<p><em>Since Ant 1.6</em>.</p>
<p>The task supports nested <a href="../Types/filterchain.html">FilterChain</a>s.</p>
<h4>header, footer</h4>
<p><em>Since Ant 1.6</em>.</p>
<p>Used to prepend or postpend text into the concatenated stream.</p>
<p>The text may be in-line or be in a file.</p>
<table class="attr">
<tr>
<th scope="col">Attribute</th>
<th scope="col">Description</th>
<th scope="col">Required</th>
</tr>
<tr>
<td>filtering</td>
<td>Whether to filter the text provided by this sub element.</td>
<td>No; default is <q>yes</q></td>
</tr>
<tr>
<td>file</td>
<td>A file to place at the head or tail of the concatenated text.</td>
<td>No</td>
</tr>
<tr>
<td>trim</td>
<td>Whether to trim the value.</td>
<td>No; default is <q>no</q></td>
</tr>
<tr>
<td>trimleading</td>
<td>Whether to trim leading white space on each line.</td>
<td>No; default is <q>no</q></td>
</tr>
</table>
<h3>Examples</h3>
<p>Concatenate a string to a file:</p>
<pre><concat destfile="README">Hello, World!</concat></pre>
<p>Concatenate a series of files to the console:</p>
<pre>
<concat>
<fileset dir="messages" includes="*important*"/>
</concat></pre>
<p>Concatenate a single file, appending if the destination file exists:</p>
<pre>
<concat destfile="NOTES" append="true">
<filelist dir="notes" files="note.txt"/>
</concat></pre>
<p>Concatenate a series of files, update the destination file only if is older that all the
source files:</p>
<pre>
<concat destfile="${docbook.dir}/all-sections.xml"
force="no">
<filelist dir="${docbook.dir}/sections"
files="introduction.xml,overview.xml"/>
<fileset dir="${docbook.dir}"
includes="sections/*.xml"
excludes="introduction.xml,overview.xml"/>
</concat></pre>
<p>Concatenate a series of files, expanding Ant properties.</p>
<pre>
<concat destfile="${build.dir}/subs">
<path>
<fileset dir="${src.dir}" includes="*.xml"/>
<pathelement location="build.xml"/>
</path>
<filterchain>
<expandproperties/>
</filterchain>
</concat></pre>
<p>Filter the lines containing project from <samp>build.xml</samp> and output them
to <samp>report.output</samp>, prepending with a header.</p>
<pre>
<concat destfile="${build.dir}/report.output">
<header filtering="no" trimleading="yes">
Lines that contain project
==========================
</header>
<path path="build.xml"/>
<filterchain>
<linecontains>
<contains value="project"/>
</linecontains>
</filterchain>
</concat></pre>
<p>Concatenate a number of binary files.</p>
<pre>
<concat destfile="${build.dir}/dist.bin" binary="yes">
<fileset file="${src.dir}/scripts/dist.sh"/>
<fileset file="${build.dir}/dist.tar.bz2"/>
</concat></pre>
</body>
</html>
distrib
>
Mageia
>
7
>
i586
>
media
>
core-updates
>
by-pkgid
>
8fad0817607a09309c3e5b12a09dac58
>
files
>
33
