ClearCase Triggers

[see other ClearCase Pages on this CMWiki]

A ClearCase Trigger is a an executable program that you create that you can make Clearcase invoke before and/or after a specified ClearCase event or operation. You tell ClearCase which commands/events to invoke it for, you tell it how to invoke it, and ClearCase will execute it at the specified time with the specified parameters, as well as set the environment with lots of ClearCase related environment variables to allow your trigger "script" to consult numerous items of contextual information at the time it is invoked.

Freely Available ClearCase Triggers

Some folks have developed their own ClearCase triggers and/or wrappers and/or related APIs and have made them freely available for others to download and use (in an OpenSource? fashion). Here is a list of such sites where ClearCase-related code (usually Perl-code) may be downloaded:

• A Better Solution Inc. sells some commercial ClearCase-related products and services in addition to providing some open-source triggers. See "ClearCase Triggers" from the homepage (http://www.abs-consulting.com/ )

• CG Software Design is Christian Goetze's website. He is another ClearCase-related product and service provider with some open-source triggers freely available. (See the "ClearCase Extension Pack" at http://www.cg-soft.com/ )
• CompBL is a ClearCase add-on which easily compares ClearCase UCM Baselines and Streams

• Highley Recommended ClearCase Process triggers is David Highley's set of open-source triggers for implementing the general ClearCase process/best-practices outlined at the above webpage]
• ClearEnv is a ClearCase add-on for Centralized Management of Environments and Methodologies (project, streams and views) over ClearCase UCM
• David Boyce's Perl modules for ClearCase -- some excellent ClearCase-related Perl libraries and triggers. Some of the modules are also available on CPAN, but some aren't. (See http://www.cleartool.com )

• Centralus Consulting has some free downloads of open-source ClearCase scripts and triggers at http://www.centralus.com/products.htm

• IBM Rational ClearCase: The Ten Best Triggers is an article at the developerWorks Rational Technical Library which includes source code.

• Kevin Lee's Clearcase scripts/triggers and related ultilities

• ClearPerl is a set of Perl5 libraries by BradAppleton? & friends. It is no longer actively developed/maintained but the code is available for download at http://www.bradapp.net/clearperl

• Paul Smith's ClearCase Goodies are well known and relied upon throughout ClearCase-user-land (especially his citree script). See them, and some ClearCase presentations by Paul Smith at http://ftp.wellfleet.com/netman/psmith/atria/. Paul also has some ClearCase-related scripts at http://www.paulandlesley.org/clearcase/ and some interesting papers on GNU-make

• ClearCase UCM Triggers are a set of Perl triggers to extend the capabilities of ClearCase's built-in Unified Change Management process tools.

• Sclc and CDiff are a set of Perl scripts maintained by BradAppleton? to count lines of code (for various languages and in various ways) and to produce customizable format context-difference listings on top of ClearCase's cleardiff program.

• Rational ClearCase Add-ins contain collections of triggers, some of them duplicates of what is listed in the above. It is part of the developerWorks Rational Product Plug-ins and Add-ins.