Remove anonymous cvs instructions, and replace them with instructions

for git. Change other references from cvs to git as well.

doc/src/sgml/sourcerepo.sgml

@@ -0,0 +1,93 @@
+<!-- doc/src/sgml/sourcerepo.sgml -->
+
+<appendix id="sourcerepo">
+ <title>The Source Code Repository</title>
+
+ <para>
+  The <productname>PostgreSQL</productname> source code is stored and managed using the
+  <productname>Git</productname> version control system. An public mirror of this
+  is available and updated within a minute of the master repository.
+ </para>
+
+ <para>
+  Our wiki, <ulink
+  url="http://wiki.postgresql.org/wiki/Working_with_Git"></ulink>,
+  has additional details on working with Git.
+ </para>
+
+  <para>
+   Note that building <productname>PostgreSQL</productname> from the source
+   repository requires reasonably up-to-date versions of <application>bison</>
+   and <application>flex</>. These tools are not needed to build from a
+   distribution tarball since their output is included in the file.
+   You will need Perl as well, but otherwise the tool requirements are the
+   same.
+  </para>
+
+ <sect1 id="git">
+  <title>Getting The Source Via <productname>Git</></title>
+
+  <para>
+   With <productname>Git</> you will make a copy of the entire code repository
+   to your local machine, so you will have access to all history and branches
+   offline. This is the fastest and most flexible way to develop or test
+   patches.
+  </para>
+
+  <procedure>
+   <title>Git</title>
+
+   <step>
+    <para>
+     You will need an installed version of <productname>Git</>, which you can get
+     from <ulink url="http://git-scm.com"></ulink>. Many systems also have a recent
+     version of <application>Git</> installed by default, or available in their
+     package repository system.
+    </para>
+   </step>
+
+   <step>
+    <para>
+     To being using the Git repository, make a clone of the official mirror:
+
+<programlisting>
+git clone git://git.postgresql.org/git/postgresql.git
+</programlisting>
+
+     This will copy the full repository to your local machine, so it may take
+     a while to complete, especially if you have a slow Internet connection.
+    </para>
+
+    <para>
+     The Git mirror can also be reached via the HTTP protocol in case for example
+     a firewall is blocking access to the Git protocol. Just replace the URL
+     like:
+
+<programlisting>
+git clone http://git.postgresql.org/git/postgresql.git
+</programlisting>
+
+     The HTTP protocol is less efficient than the Git protocol, so it will be
+     slower to use.
+    </para>
+   </step>
+
+   <step>
+    <para>
+     Whenever you want to get the latest updates in the system, <command>cd</>
+     into the repository, and run:
+
+<programlisting>
+git fetch
+</programlisting>
+    </para>
+   </step>
+  </procedure>
+  <para>
+   <productname>Git</> can do a lot more things than just fetch the source. For
+   more information, consult the man pages for the product, or the website at
+   <ulink url="http://git-scm.com"></>.
+  </para>
+ </sect1>
+
+</appendix>