I m writing a plugin that will generate some artifacts that Pants #general

I'm writing a plugin that will generate some artif...

ripe-gigabyte-88964

04/06/2023, 7:53 PM

I'm writing a plugin that will generate some artifacts that can be fed to a downstream deployment process. Configurations for these artifacts can either be specified in a custom target defined in the plugin, in a file referenced by the custom target, or some fields can have global defaults set in the subsystem. Is there a request I can use to get pants to run an arbitrary Python script in parallel for each

FieldSet

? Similar to

Process

except pants can run it in its own Python environment.

ripe-gigabyte-88964

04/06/2023, 8:00 PM

Also wondering how

compute_value

works for async fields? I have a field that I can derive a sensible default for but it could also be hydrated from the config file.

ripe-gigabyte-88964

04/06/2023, 8:03 PM

Also is there a specific exception or kind of exception I should throw if a certain value is neither specified nor can it be hydrated from the config file?

fast-nail-55400

04/06/2023, 9:22 PM

You can still use

Process

but have the binary be the Python interpreter available for rules to use which can be requested from the engine via the PythonBinary type.

fast-nail-55400

04/06/2023, 9:23 PM

And there are some examples in the Pants code base of adding an arbitrary Python script (via

CreateDigest

and

MergeDigests

) into the input root for a

Process

execution.

fast-nail-55400

04/06/2023, 9:24 PM

Setup the

Process

per

FieldSet

instance and then

MultiGet

the whole lot and you will have your concurrent execution.

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