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====== Getting Greenstone2 running under linux, using SVN and Apache ======


NB: These instructions will apply from 7th June 2007

My sample user is ''xxx'' - substitute your username for ''xxx'' in the following instructions.

==== 1. Get Greenstone from SVN ==== 
We generally advise people to install greenstone on the research partition of your computer - some people have had problems installing in their home directory. But you can try in your home directory if you like. Assuming you will use the research partition:

<code>
mkdir /research/xxx (create a place for your research files if you haven't already)
cd /research/xxx 
svn co http://svn.greenstone.org/gsdl/trunk gsdl
</code>

Change to the ''gsdl'' directory and check out the indexers:
<code>
cd gsdl
svn co http://svn.greenstone.org/indexers/trunk indexers
</code>

Still in the ''gsdl'' directory, compile the code:
<code>
./configure
make
make install
</code>

Now greenstone is installed in ''/research/xxx/gsdl''

==== 2. If you want to use the GLI ==== 
In the ''gsdl'' directory, run:
<code>
svn co http://svn.greenstone.org/gli/trunk gli
cd gli
./makegli.sh
</code>

To start the GLI, in the ''gli'' directory run:
<code>
./gli.sh
</code>

==== 3. Install Apache ==== 
You will need to install Apache to be able to run the cgi executable.

Download a recent Apache2 binary from [[http://httpd.apache.org/download.cgi|http://httpd.apache.org/download.cgi]]
(Apache1.3 will also work, but Apache2 is much better.)

Unpack the tar file:
<code>
cd /research/xxx
tar -xzf apache_2.x.x.tar.gz
</code>

Compile the source:
<code>
cd apache_2.x.x
./configure --prefix=/research/xxx/httpd
make
make install
</code>
Now apache is installed in ''/research/xxx/httpd''

To start and stop apache, type
<code>
 /research/xxx/httpd/bin/apachectl start
 /research/xxx/httpd/bin/apachectl stop
</code>
To change the port that apache runs on, edit the ''/research/xxx/conf/httpd.conf'' file and 
change the Port or Listen directive to the correct port - ''8080'' is a good choice. 
After restarting apache you will then be able to access your apache installation at 
[[http://localhost:8080/|http://localhost:8080/]].

==== 4. Tell apache about greenstone ==== 
The basic method for making a greenstone installation available through a web server is to
  * Make the contents of the gsdl home folder visible on the web by placing them (or a symbolic link to them) somewhere within the htdocs folder of your apache installation.
  * Make some or all of the contents of the gsdl/cgi-bin folder available for execution on your apache server by placing a them (or a symbolic link to them) into the cgi-bin folder of your apache installation. (Make sure you include at least the 'library' or 'library.exe' executable.)
  * Create/edit the ''gsdlsite.cfg'' file inside the cgi-bin folder of apache, as a sibling of the 'library' or 'library.exe' executable.

This is the way I used:
<code>
cd /research/xxx/httpd/cgi-bin
ln -s /research/xxx/httpd/gsdl
ln -s /research/xxx/gsdl/cgi-bin/library
cp /research/xxx/gsdl/cgi-bin/gsdlsite.cfg .
cd /research/xxx/htdocs
ln -s /research/xxx/gsdl
</code>

You may need to edit the ''gsdlsite.cfg'' file.
Make sure the following are uncommented and set like this:
<code>
gsdlhome /research/xxx/gsdl
httpprefix /gsdl
httpimg /gsdl/images
</code>
Now you need to edit apaches config file ''/research/xxx/httpd/conf/httpd.conf''
 
In the ''<Directory "/research/xxx/httpd/cgi-bin">'' bit, change 'Options None' to 'Options 
FollowSymlinks'

After editing the ''httpd.conf'' file, you will need to restart apache for the changes 
to take effect.

You should now be able to access your greenstone installation at 
''<nowiki>http://localhost:8080/cgi-bin/library</nowiki>''

===== Updating your installation =====
To update your gsdl installation, or gli, do an ''svn update'' in the appropriate 
directory and then recompile the source code. For example, to update the main gsdl 
installation, run:
<code>
cd /research/xxx/gsdl 
svn update
make clean
./configure
make
make install
</code>