[GROOVY-6190] Provide ability to pass a callback closure for Grape's grab(..) method

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.8, 2.1.3
• Component/s: Grape
• Labels: callback grab grape progress
• Assignee: Unassigned
• Reporter: Matthew T. Adams
• Created: 30/May/13 17:04
• Updated: 29/Sep/13 04:18

Description

http://jira.codehaus.org/browse/GROOVY-4687 is a first step, granted, but it's crude. Further, it requires external configuration (via the system property groovy.grape.report.downloads), which is inconvenient.

I'd like to customize the behavior as artifacts are resolved, providing a callback to the grab method, like so:

def count = 0
groovy.grape.Grape.grab(group:'com.jidesoft', module:'jide-oss', version:'[2.2.0,)', callback: {
    // update a UI progress bar or do whatever here; 'it' should refer to an object with relevant information
    println "grabbed ${it.group}:${it.module}:${it.version}; ${(int)(((float)++count)/it.moduleCount)*100)}% done"
})