Downloading GRASS Source

Packaged Source

All source releases are available for download from:

• GRASS 6.2.3: Current stable GRASS 6 release: Release/6.2.3-News
• GRASS 6.2.2: Older stable GRASS 6 release: Release/6.2.2-News
• GRASS 5.4.1: Latest stable GRASS 5 release: Release/5.4.1-News
• Download at ​http://download.osgeo.org/grass

Subversion GRASS main source code repository

The GRASS GIS software lives in the ​Subversion source control system. It can be browsed online using the ​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 ​RFC 2: Legal aspects of code contributions. Commiters should take care to use https for access, and use their ​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

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

• ​TracBrowser interface
• ​ViewCVS interface (Subversion backup note: svnsync runs every three hours)
• ​Raw SVN server HTML interface

Historical CVS

A copy of GRASS-CVS has been saved ​here.