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e967d77e02
PR: 5020 Reported By: jesse.glick@netbeans.com (Jesse Glick) git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271131 13f79535-47bb-0310-9956-ffa450edef68
107 lines
3.7 KiB
HTML
107 lines
3.7 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Language" content="en-us">
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<title>Get Task</title>
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</head>
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<body>
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<h2><a name="get">Get</a></h2>
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<h3>Description</h3>
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<p>Gets a file from a URL. When the verbose option is "on", this task
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displays a '.' for every 100 Kb retrieved. Any URL schema supported by
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the runtime is valid here, including http:, ftp: and jar:;
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https: is only valid if the appropriate support is added to the pre-1.4 Java
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runtimes.
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</p>
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<p>This task should be preferred above the <a href="cvs.html">CVS task</a> when
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fetching remote content. CVS is significantly slower than loading a compressed
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archive compared to http/ftp.</p>
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The <i>usetimestamp</i> option enables you to control downloads so that the remote file is
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only fetched if newer than the local copy. If there is no local copy, the download always takes
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place. When a file is downloaded, the timestamp of the downloaded file is set to the remote timestamp,
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if the JVM is Java1.2 or later.
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NB: This timestamp facility only works on downloads using the HTTP protocol.
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<p>
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A username and password can be specified, in which case basic 'slightly encoded
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plain text' authentication is used. This is only a secure authentication
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mechanism over an HTTPS link.
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</p>
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<h3>Parameters</h3>
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<table border="1" cellpadding="2" cellspacing="0">
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top">src</td>
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<td valign="top">the URL from which to retrieve a file.</td>
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<td align="center" valign="top">Yes</td>
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</tr>
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<tr>
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<td valign="top">dest</td>
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<td valign="top">the file where to store the retrieved file.</td>
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<td align="center" valign="top">Yes</td>
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</tr>
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<tr>
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<td valign="top">verbose</td>
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<td valign="top">show verbose progress information ("on"/"off").</td>
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<td align="center" valign="top">No; default "false"</td>
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</tr>
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<tr>
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<td valign="top">ignoreerrors</td>
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<td valign="top">Log errors but don't treat as fatal.</td>
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<td align="center" valign="top">No; default "false"</td>
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</tr>
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<tr>
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<td valign="top">usetimestamp</td>
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<td valign="top">conditionally download a file based on the timestamp of the
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local copy. HTTP only</td>
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<td align="center" valign="top">No; default "false"</td>
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</tr>
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<tr>
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<td valign="top">username</td>
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<td valign="top">username for 'BASIC' http authentication</td>
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<td align="center" valign="top">if password is set</td>
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</tr>
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<tr>
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<td valign="top">password</td>
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<td valign="top">password: required </td>
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<td align="center" valign="top">if username is set</td>
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</tr>
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</table>
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<h3>Examples</h3>
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<pre> <get src="http://jakarta.apache.org/" dest="help/index.html"/></pre>
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<p>Gets the index page of http://jakarta.apache.org/, and stores it in the file <code>help/index.html</code>.</p>
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<pre> <get src="http://jakarta.apache.org/builds/tomcat/nightly/ant.zip"
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dest="optional.jar"
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verbose="true"
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usetimestamp="true"/></pre>
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<p>
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Gets the nightly ant build from the tomcat distribution, if the local copy
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is missing or out of date. Uses the verbose option
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for progress information.
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</p>
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<pre> <get src="https://insecure-bank.org/statement/user=1214"
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dest="statement.html"
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username="1214";
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password="secret" /></pre>
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<p>
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Fetches some file from a server with access control. Because https is being used the
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fact that basic auth sends passwords in plaintext is moot.
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<hr>
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<p align="center">Copyright © 2001-2002 Apache Software Foundation. All rights
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Reserved.</p>
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</body>
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</html>
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