Tycho development environment

Prerequisites

• Java5 or better
• m2eclipse 0.9.6 or better

Configure ~/.m2/settings.xml

  ...
  <repository>
    <id>forge</id>
    <url>http://repository.sonatype.org/content/groups/public</url>
    <snapshots>
      <enabled>true</enabled>
    </snapshots>
    <releases>
      <enabled>true</enabled>
    </releases>
  </repository>
  ...
  <pluginRepository>
    <id>forge</id>
    <url>http://repository.sonatype.org/content/groups/public</url>
    <snapshots>
      <enabled>true</enabled>
    </snapshots>
    <releases>
      <enabled>true</enabled>
    </releases>
  </pluginRepository>
  ...

Workspace configuration

Window->Preferences->Maven
Goals to run on project import: process-test-classes
Goals to run when updating project configuration: process-test-classes

Checkout

File->Import->Other->Check out Maven project from SCM
Select SVN URL http://svn.sonatype.org/m2eclipse/tycho/trunk (use https for dev access)

This will checkout, create and configure all tycho projects in eclipse workspace.

Revert changes .project and .classpath files in tycho-surefire-osgi-booter
project (a workaround for m2e limitation).

At this point all projects should compile without errors and workspace is ready

Running tycho from workspace

• Download maven 3.0 distribution used by Tycho trunk as specified in Tycho builds and unzip it to an empty folder
• Add the maven distribution to the list of maven installations known to m2e (Window->Preferences->Maven->Installations)
  

As an example, run tycho integration tests using tycho

• Right-click on tycho-its project, Run As->Maven build... (note three dots). This will show Maven launch configuration edit window
  • On the Main tab, specify "clean test" goals, enable "Resolve workspace artifacts", set tycho.targetPlatform property and select proper maven 3.0 installation
    
  • On the Common tab, select Save as Share file and specify /tycho-its location
    
  • Apply and close the dialog. Do NOT run it yet

• Open /tycho-its/tycho-its.launch in text editor and add the following listAttribute to enable use of tycho by this launch configuration.

<listAttribute key="M2_FORCED_COMPONENTS_LIST">
<listEntry value="org.codehaus.tycho:tycho-osgi-components:0.4.0-SNAPSHOT"/>
<listEntry value="org.eclipse:org.eclipse.osgi:3.5.0.v20090429-1630"/>
<listEntry value="org.sonatype.tycho:tycho-p2-facade:0.4.0-SNAPSHOT"/>
<listEntry value="org.sonatype.tycho:tycho-equinox:0.4.0-SNAPSHOT"/>
</listAttribute>

• Put a breakpoint at EclipseMaven#getProjects to see m2e runs the right code

• Right-click on /tycho-its/tycho-its.launch, Debug As->tycho-its

m2eclipse is expected to launch tycho build in debug mode and stop execution at EclipseMaven#getProjects.