I use a different approach ... but it may not fits your use case.
In any case, usually when I have to perform operation on each element of a
Map, I end up on transform the Map on steps that I can feed to parallel
steps {
stepsMap = [:]
stepsMap = dataMap.collectEntries{[
"Name of step to perfom (that will appear on BlueOcean": {
// pipeline code, I usually use script block here to be able to do
stuff not available in declarative
}
]}
parallel stepsMap
}
By default collectEntries put the value into a variable called $it ... but
the there is a syntax that allow to use key and value variables and use
them inside.
On Saturday, 18 July 2020 19:28:32 UTC+1, David Karr wrote:
>
> I'm posting this mostly so people can find it. Perhaps it's already
> well-known, and perhaps I'm missing some simple thing that makes this
> easier to do, but I think not.
>
> In my Jenkinsfile, I need to iterate over a map created with Groovy,
> calling "writeFile" with the key as the file name, and the value as the
> contents. If you haven't had to do this, you might assume this is simple.
> If you have, you either discovered what I did, or you gave up.
>
> What I tried to write first was this:
> dataMap.each {
> writeFile(file: "target/generated." + key, text: value)
> }
>
> This gets serialization errors. I then discovered that calling pipeline
> steps within closures would not work, so I changed it to a plainer
> iteration:
>
> for(Map.Entry entry : dataMap) {
> writeFile(file: "target/generated." + entry.getKey(), text: entry.
> getValue())
> }
>
> This also does not work. It appears that you simply can't call a pipeline
> step with a map anywhere in scope.
>
> What DOES work is something like the following:
> def keyValueList = []
> for (Map.Entry entry : dataMap) {
> keyValueList.add(entry.getKey())
> keyValueList.add(entry.getValue())
> }
> dataMap = null
> for (int ctr = 0; ctr < keyValueList.size(); ctr += 2) {
> writeFile(file: "target/generated." + keyValueList.get(ctr), text:
> keyValueList.get(ctr + 1))
> }
> keyValueList = null
>
> Suggestions would be useful, or perhaps other people will just do the same
> thing I've done.
>
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