You'll want to change the contents to look similar to the following:
-clean -startup plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar --launcher.library plugins/org.eclipse.equinox.launcher.gtk.linux.x86_1.1.100.v20110505 -showsplash org.eclipse.platform --launcher.XXMaxPermSize 256m --launcher.defaultAction openFile -vmargs -Xms1000m -Xmx1250m -Xss2m |
Important settings to note/change/add are "-clean" and the "-Xms1000m", "-Xmx1250m" and "-Xss2m" settings.
Save and close the file.
You will install three things: Scala IDE, XML Support and EGit.
You need to install the Scala IDE version that matches the Scala version at Tested/Verified Tool Versions.
You obtain the Scala IDE from the scala-ide.org site. A URL is provided that is typed into the Eclipse software install dialog like this example:
Check the box next to 'Scala IDE for Eclipse' and click Next. Follow the prompts to complete installation.
After a few minutes, Eclipse will notify you that it will need to be restarted. Go ahead.
When Eclipse restarts, if a dialog appears asking "Run setup diagnostics to ensure correct plugin settings?". Click Yes.
A Setup Diagnostics dialog will appear. Just click OK.
In Eclipse. Click Help -> Install New Software.
In the 'Work with' box select the drop down.
You will see a list of pre-defined choices. One of them is named after the Eclipse release e.g., Mars for the Mars eclipse release, Neon for the neon release.
In the search filter box below that, type "xml".
Expand "Programming Languages" and select the checkbox next to "Eclipse XML Editors and Tools".
Click Next and follow the prompts to complete installation.
In Eclipse. Click Help -> Install New Software.
In the select the dropdown next to the "Work with" box.
Select Indigo.
In the search field type "EGit".
Click Next and follow the prompts to complete installation.