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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>svnadmin dump</title><link rel="stylesheet" href="styles.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /><link rel="start" href="index.html" title="Version Control with Subversion" /><link rel="up" href="svn.ref.svnadmin.html#svn.ref.svnadmin.c" title="svnadmin Subcommands" /><link rel="prev" href="svn.ref.svnadmin.c.deltify.html" title="svnadmin deltify" /><link rel="next" href="svn.ref.svnadmin.c.help.html" title="svnadmin help" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">svnadmin dump</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="svn.ref.svnadmin.c.deltify.html">Prev</a> </td><th width="60%" align="center"><span class="command"><strong>svnadmin</strong></span> Subcommands</th><td width="20%" align="right"> <a accesskey="n" href="svn.ref.svnadmin.c.help.html">Next</a></td></tr></table><hr /></div><div class="refentry" lang="en" xml:lang="en"><a id="svn.ref.svnadmin.c.dump"></a><div class="titlepage"></div><a id="id422542" class="indexterm"></a><div class="refnamediv"><h2>Name</h2><p>svnadmin dump — Dump the contents of filesystem to stdout.</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="id422568"></a><h2>Synopsis</h2><pre class="programlisting">svnadmin dump REPOS_PATH [-r LOWER[:UPPER]] [--incremental]</pre></div><div class="refsect1" lang="en" xml:lang="en"><a id="id422581"></a><h2>Description</h2><p>Dump the contents of filesystem to stdout in a
“<span class="quote">dumpfile</span>” portable format, sending feedback
to stderr. Dump revisions
<em class="replaceable"><code>LOWER</code></em> rev through
<em class="replaceable"><code>UPPER</code></em> rev. If no revisions are
given, dump all revision trees. If only
<em class="replaceable"><code>LOWER</code></em> is given, dump that one
revision tree. See <a class="xref" href="svn.reposadmin.maint.html#svn.reposadmin.maint.migrate" title="Migrating Repository Data Elsewhere">the section called “Migrating Repository Data Elsewhere”</a>
for a practical use.</p><p>By default, the Subversion dumpfile stream contains a
single revision (the first revision in the requested
revision range) in which every file and directory in the
repository in that revision is presented as if that whole
tree was added at once, followed by other revisions (the
remainder of the revisions in the requested range) which
contain only the files and directories which were modified
in those revisions. For a modified file, the complete
fulltext representation of its contents, as well as all of
its properties, are presented in the dumpfile; for a
directory, all of its properties are presented.</p><p>There are two useful options which modify the dumpfile
generator's behavior. The first is the
<code class="option">--incremental</code> option, which simply causes
that first revision in the dumpfile stream to contain only
the files and directories modified in that revision,
instead of being presented as the addition of a new tree,
and in exactly the same way that every other revision in
the dumpfile is presented. This is useful for generating
a relatively small dumpfile to be loaded into another
repository which already has the files and directories
that exist in the original repository.</p><p>The second useful option is <code class="option">--deltas</code>.
This option causes <span class="command"><strong>svnadmin dump</strong></span> to,
instead of emitting fulltext representations of file
contents and property lists, emit only deltas of those
items against their previous versions. This reduces (in
some cases, drastically) the size of the dumpfile that
<span class="command"><strong>svnadmin dump</strong></span> creates. There are, however,
disadvantages to using this option—deltified
dumpfiles are more CPU intensive to create, cannot be
operated on by <span class="command"><strong>svndumpfilter</strong></span>, and tend
not to compress as well as their non-deltified counterparts
when using third-party tools like <span class="command"><strong>gzip</strong></span>
and <span class="command"><strong>bzip2</strong></span>.</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="id422678"></a><h2>Options</h2><pre class="screen">
--revision (-r) REV
--incremental
--quiet (-q)
--deltas
</pre></div><div class="refsect1" lang="en" xml:lang="en"><a id="id422691"></a><h2>Examples</h2><p>Dump your whole repository:</p><pre class="screen">
$ svnadmin dump /var/svn/repos
SVN-fs-dump-format-version: 1
Revision-number: 0
* Dumped revision 0.
Prop-content-length: 56
Content-length: 56
…
</pre><p>Incrementally dump a single transaction from your
repository:</p><pre class="screen">
$ svnadmin dump /var/svn/repos -r 21 --incremental
* Dumped revision 21.
SVN-fs-dump-format-version: 1
Revision-number: 21
Prop-content-length: 101
Content-length: 101
…
</pre></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="svn.ref.svnadmin.c.deltify.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="svn.ref.svnadmin.html#svn.ref.svnadmin.c">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="svn.ref.svnadmin.c.help.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">svnadmin deltify </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> svnadmin help</td></tr></table></div></body></html>
