Best/most idiomatic way to do parallel tasks that are largely the same?

[Adam Paul]

Hello,

Let's say I have a product that needs to build on two different 
architectures (indeed, I do).  The build steps are exactly the same, only 
the architecture differs.  What is the best way to do this in parallel in a 
pipeline without duplicating the code for each architecture.  The example 
below is simple, but my real world one isn't so much.

eg. instead of:

parallel(
    "sparc": {
        def arch="sparc"
        do_stuff(arch)
        do_more_stuff(arch)
    },
    "i386": {
        def arch="i386"
        do_stuff(arch)
        do_more_stuff(arch)
    }
)


There is:

def testList = ["sparc","i386"]
def branches = [:] 

for (int i = 0; i < testList.size() ; i++) {
       String arch=testList[i]
       stage ("branch_${arch}"){ 
            branches["branch_${arch}"] = { 
                node (){
                    do_stuff(arch)
                    do_more_stuff(arch)
                }
            }
      }
}

parallel branches

which works, but I'm wondering if there is a better/more idiomatic way to 
do this?

Thanks!
     Adam

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