WDL versions supported by Terra

January 04, 2023 18:05
5 comments

Which versions of WDL are we able to use in workflows in Terra?

I've used "draft-2" and "1.0" in the past. But there is a feature in WDL 1.1 that I want to use. Can we use WDL version 1.1 in Terra?

Comments

5 comments

Stephen Fleming
- January 04, 2023 21:01
Posting this for others...

As per Josh Evans from Terra Support:

"Currently the version of Cromwell run by Terra supports workflows using WDL 1.0. However, there are plans to support 1.1 in the future, but there currently isn't a release date for that feature."

0
Philipp Hähnel
- March 02, 2023 00:38
I used to be able to submit WDLs with development version to portal.firecloud.org and run on Terra, but for some reason this no longer works since today due to

Error: Invalid WDL: NoneLiteralElement (of class wdl.model.draft3.elements.ExpressionElement$NoneLiteralElement$)

Yes, I do have an explicit "None" in that WDL, which is the point of the development version. Did something change in the permitted versions for Terra or the WDL parsing?

0
Philipp Hähnel
- March 02, 2023 23:28
Nevermind, it was an error in my inputs. Apparently you can't do something like
```
input {
    Int a = 1
    Int b = 1 + a
}
```
0
Stephen Fleming
- Edited March 06, 2023 15:00
You might be interested in something like this

https://github.com/openwdl/wdl/blob/main/versions/1.0/SPEC.md#computing-inputs

You are allowed to do
```
input {
    Int a = 1
}
Int b = 1 + a

command {
    ... # use a and b
}
```
The caveat here is that `b` will always be `1 + a`... the user is not able to randomly input some other value for `b`.
1
Anika Das
- March 06, 2023 14:57
Hi Philipp Hähnel

It looks like you were able to find the answer. Please let us know if you have any questions!

Kind Regards,

Anika

0

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