Tom-2.10:Compiling trunk

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Installation  > Compiling from sources  > Using Tom  > Using Gom  > Configuring your environment  > Tom Server  > EMF Mapping Generator


Compiling Tom from sources (*)

The Tom and Gom compilers are written in Tom itself. The compiler is certainly the most complex program written in Tom. Most of the constructs provided by Tom are used and tested in the project itself.

Getting the sources

Command line

The Tom and Gom sources are available through anonymous Source Code Managment system (SCM). We used subversion but we switched to git. We try to keep both repositories up-to-date but jtom on svn may not be always synchronized. To get sources, prefer the git command :

git clone git://

Developer access is possible via ssh or DAV. See Gforge for detailed instructions.

The git (or svn) checkout will get a new repertory in your current working directory, called jtom. We will call this directory ${TOM_BASE}.

For GNU/Linux or Mac users, it is very simple to install and use Git (available through packages management systems), but it might be a bit difficult to use under Windows. We advise Windows users to install msysgit: after few tests, it seems to run correctly and we did not encounter any issue during Tom installation.

Note: A part of the Tom project is still under subversion (tom-eclipse, etc.) but if you are only interested in Tom sources, examples and applications, please use the git system. We will try to completely migrate soon the subversion repository to git.

Using Eclipse

  • install subclipse, 1.4.x for instance (see detailed instructions), providing support for Subversion within Eclipse
  • Window->Open Perspective->Other->SVN Repository Exploring
  • New->Repository Location
  • svn:// (anonymous access)
  • (registered users)
  • expand jtom and do a checkout on the trunk
  • "checkout as a project in the workspace", call it jtom, click Finish

Note: the Tom Eclipse Plugin cannot be used to compile Tom from the sources

Note: since we are migrating to git, you can use EGit instead of Subclipse. We do not have fully tested it until now.

Prepare for the build

First of all, please read ${TOM_BASE}/INSTALL_DEV. Even if the current guide should be enough, this file may contain useful information.

Optionally, to customize the build environment, you will have to copy the template configuration file ${TOM_BASE}/local.properties_template to ${TOM_BASE}/, and edit the latter it to reflect your setup. The most common is to set build.compiler=jikes to use the jikes Java compiler, and build.compiler.emacs=true to get errors in a format the emacs editor can handle.

Configure user environment variables

  • declare the TOM_HOME environment variable and assign it to <eclipse workspace>/jtom/src/dist (<eclipse workspace>\jtom\src\dist for Windows)
  • set JAVA_HOME environment variable. This should be set to the directory where your JDK is installed, for instance: C:\Program Files\Java\jdk1.6.0_13
  • set PATH to JAVA_HOME/bin (%JAVA_HOME%\bin for Windows)
  • do not forget to relaunch Eclipse if you use it

Build the Tom distribution

The Tom build process uses apache ant to automate the all parts of the process. This build process is specified by the ${TOM_BASE}/build.xml file.

Command line

You need to have apache apache ant (1.7 or earlier) installed in order to compile Tom.

Note: for Windows, you should include in your PATH variable the bin folder of the apache ant distribution

To compile the stable distribution of Tom, you have to use the ${TOM_BASE}/ script. To use it, first make sure to cd(1) to ${TOM_BASE}. Then you can build the stable distribution.

$ ./ stable

This creates the stable distribution in the directory ${TOM_BASE}/stable/dist.

To build and install the source distribution, you have to do the following:

$ ./ stable
$ ./ src.dist

This creates the src distribution in the directory ${TOM_BASE}/src/dist.

To list all the available targets for the build:

$ ./ -projecthelp

Note: for Windows, just use build.bat instead of

Using Eclipse

  • Window->Open Perspective->Other->Java (default)
  • Window->Show View->Other->Ant
  • expand jtom and move the build.xml file to the Ant view
  • in the Ant view, expand Ant for TOM and click on the stable target
  • click on the src.dist target

Git guide for the beginner

Here you will find some useful documentation for git :


Installation  > Compiling from sources  > Using Tom  > Using Gom  > Configuring your environment  > Tom Server  > EMF Mapping Generator

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