An exploration in configuration management DSLs. Primarily focused on support confguration of OSGi constellations, but may apply to a more general context in the future..

• File - create, delete, update file contents and permissions
• Exec - execute a command
• Package - package management (via yum, apt, homebrew, etc.)
• User - user management
• XML - parse, manipulate, output
• JSON - parse, generate
• HTTP - parse and generate requests
• ...

A pipeline is a chain of evaluations producing a composite result.

image('/tmp/map-700-collins-st-melbourne', border: 'shadow') << map << '700 Collins St, Melbourne'

pdf("/tmp/screenshot-${now.dateTime}.pdf") << ['This is a description of the screenshot', screenshot()]

Enclosures wrap an evaluation to provide support for external management of evaluations. Some example enclosures are:

• timeout(TimeUnit) - support for timeout of long-running evaluations
• dir(File) - execute in the specified directory
• parallel(Closure...) - execute multiple evaluations concurrently
• retry(int) - retry up to limit times
• waitFor(Closure) - wait for a condition before executing

• Evaluation - groups an input and a result. e.g. Eval[input: 2 + 2, result: 4]
• Synonym - an alias for an input template. e.g. Syn[name: 'avg', input: { it.sum() / it.size() }]
• ...

The recommended way to use figurate-eval is to fork this project and include your fork in dependent projects using Git submodules. The benefits of this are:

• You can easily keep the scripts updated
• Any changes/improvements can be easily fed back to the project using pull requests
• You maintain your scripts in a central location that avoids duplication across projects