= Downloading GRASS Source =

== Packaged Source ==

All source releases are available for download from:

 * '''GRASS 6.2.3: Current stable GRASS 6 release: [wiki:Release/6.2.3-News]'''
 * GRASS 6.2.2: Older stable GRASS 6 release: [wiki:Release/6.2.2-News]
 * GRASS 5.4.1: Latest stable GRASS 5 release: [wiki:Release/5.4.1-News]
 * '''Download at http://grass.osgeo.org/download/''' or directly from
   * http://grass.osgeo.org/grass54/source/
   * http://grass.osgeo.org/grass62/source/
   * http://grass.osgeo.org/grass63/source/

== Weekly snapshots ==

 * http://grass.osgeo.org/grass63/source/snapshot/

== Subversion GRASS main source code repository ==

The GRASS GIS software lives in the [http://subversion.tigris.org/ Subversion] source control system. It can be browsed online using the [http://trac.osgeo.org/grass/browser Browse Source] button on the top bar.

With the subversion client software installed, the current GRASS '''development''' version can be extracted using the command:

{{{
  svn checkout https://svn.osgeo.org/grass/grass/trunk grass_trunk
}}}

To extract the current '''release branch''' version use the command:

{{{
  svn checkout https://svn.osgeo.org/grass/grass/branches/releasebranch_6_3 grass63_release
}}}

To extract the current '''stable''' version use the command:

{{{
  svn checkout https://svn.osgeo.org/grass/grass/branches/releasebranch_6_2 grass62_release
}}}


Update access to the Subversion repository is governed by [http://download.osgeo.org/grass/grass6_progman/rfc/rfc2_psc.html RFC 2: Legal aspects of code contributions]. Committers should take care to use https for access, and use their [http://www.osgeo.org/osgeo_userid OSGeo Userid] for authentication. A commit command might look something like:

{{{
  svn commit -m "Distinguish between raster and vector backends (bug #999)" main.c --username glynn
}}}

After your first commit SVN will remember your OSGeo user id and password so --username only has be used the first time.


== Subversion GRASS Addons source code repository ==

With the subversion client software installed, the current GRASS Addons can be extracted using the command:

{{{
  svn checkout https://svn.osgeo.org/grass/grass-addons grass-addons
}}}

Update access to the Subversion Addons repository is governed by [http://download.osgeo.org/grass/grass6_progman/rfc/rfc2_psc.html RFC 2: Legal aspects of code contributions]. Committers should take care to use https for access, and use their [http://www.osgeo.org/osgeo_userid OSGeo Userid] for authentication. A commit command might look something like:

{{{
  svn commit -m "Stereo DEM creation" main.c --username glynn
}}}

After your first commit SVN will remember your OSGeo user id and password so --username only has be used the first time.

== Subversion GRASS repository dumpstreams ==

Incremental dumpstreams of GRASS SVN repository are available at [http://svn.osgeo.org/dumps/grass/].

== Online browseable live web interfaces to source code repository ==

 * [http://trac.osgeo.org/grass/browser/grass/ TracBrowser interface]
 * [http://josef.fsv.cvut.cz/cgi-bin/viewcvs.cgi/?root=grass-osgeo ViewCVS interface]
   (Subversion backup note: svnsync runs 3 times per day)
 * [http://svn.osgeo.org/grass/ Raw SVN server HTML interface]

== Historical CVS ==

A copy of GRASS-CVS has been saved [http://josef.fsv.cvut.cz/cgi-bin/viewcvs.cgi/?root=grass-cvs-2007-12-09 here].