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From Apache Wiki <wikidi...@apache.org>
Subject [Ant Wiki] Update of "ApacheGump" by SteveLoughran
Date Wed, 07 Sep 2005 10:56:28 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Ant Wiki" for change notification.

The following page has been changed by SteveLoughran:
http://wiki.apache.org/ant/ApacheGump

The comment on the change is:
explain the gump

New page:
= Apache Gump =

[http://gump.apache.org/ Gump] is the regular clean build of everything.

Gump tries to rebuild all open source (Java) projects from scratch, checking the files out
from CVS and SVN repositories, bootstrapping Ant and Maven, then building them in order of
their dependencies. It also runs unit tests. If a build or test fails, the project gets email.
Web pages and RSS feeds also track status of projects.

Gump ensures that the HEAD versions of all these projects are sync, by "recriminating early,
recriminating often". Any change that breaks a downstream project is immediately caught and
resolved, somehow. 

Any OSS project with a public CVS/SVN repository can join the Gump build. Apache committers
have access to the Gump repository; other developers can submit their own gump descriptors
via bug reports. 

In-house projects can host their own version of Gump, integrating private code with public
repositories. There are some interesting security implications there -best to run Gump in
the DMZ, or an isolated Xen/VMWare machine image which only has net access to the public net
and the private SCM servers. 

Gump serves as the nightly integration test of Ant. Build files that work on Gump should work
on Ant product releases. Trouble that gump does not catch is mostly limited to 

* where changes to Ant's classloading break things, because ant-on-gump loads classes differently.

* the batch files to start ant

* builds in directories with spaces, unicode chars.

* installations of Ant with bad classpaths, version conflicts, etc. 

* Windows/OSX/Netware-specific problems. Gump is Unix. 

Also, the quality of build files used in Gump is often higher than many personal projects.
OSS projects have to address portability early on, and tend to be less brittle and build files
written by and for one person, or for a team where all hardware/OS images are nearly identical.

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