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<appendix id="cvs">

<appendixinfo>

</para>

<para>

At leasttwo methods,

anonymous CVSand <productname>CVSup</productname>,

At leastthree methods, anonymous CVS, <productname>rsync</productname>,

and <productname>CVSup</productname>,

are available to pull the <productname>CVS</productname> code tree from the

<productname>PostgreSQL</productname> server to your local machine.

</para>

</para>

</sect1>

<sect1 id="rsync">

<title>Getting The Source Via <productname>rsync</productname></title>

<para>

An alternative to using anonymous CVS for retrieving the

<productname>PostgreSQL</productname> source tree is

<productname>rsync</productname>, an incremental file transfer tool.

A major advantage to using <productname>rsync</productname> is that it

can reliably replicate the <emphasis>entire</emphasis> CVS repository

on your local system, allowing fast local access to <command>cvs</>

operations such as <option>log</option> and <option>diff</option>.

Other advantages include fast synchronization to the

<productname>PostgreSQL</productname> server due to an efficient

streaming transfer protocol which only sends the changes since the last

update.

</para>

<para>

You can download the CVS repository using this command:

<programlisting>

rsync -avzCH --delete rsync.postgresql.org::pgsql-cvs cvsroot/

</programlisting>

For full instructions, see the "rsync" section in the

<ulink url="http://pgfoundry.org/docman/view.php/1000040/4/PGBuildFarm-HOWTO.txt">

pgbuildfarm instructions</ulink>.

</para>

</sect1>

<sect1 id="cvsup">

<title>Getting The Source Via <productname>CVSup</productname></title>

<para>

An alternative to using anonymous CVS for retrieving

Another alternative to using anonymous CVS for retrieving

the <productname>PostgreSQL</productname> source tree

is <productname>CVSup</productname>.

<productname>CVSup</productname> was developed by

<ulink url="http://www.freebsd.org">FreeBSD project</ulink>.

</para>

<para>

A major advantage to using

<productname>CVSup</productname> is that it can reliably

replicate the <emphasis>entire</emphasis> CVS repository on your local system,

allowing fast local access to <command>cvs</> operations such as <option>log</option>

and <option>diff</option>. Other advantages include fast synchronization to

the <productname>PostgreSQL</productname> server due to an efficient

streaming transfer protocol which only sends the changes since the last update.

</para>

<sect2>

<title>Preparing A <productname>CVSup</productname> Client System</title>