🧪 Have you ever wanted to split off some part of your

@rule

which has

await Get

in it, but didn't want to go through the hoops of a dedicated

@rule

? ⚡ Behold, the mighty

@rule_helper

. ⚡ Does what it says on the tin! Allows you to split some code off of your

@rule

and

await Get

in it without the overhead of another rule. Example:

@rule_helper
async def _collect_thingamabobs(x, y, z):
    a = await Get(A, B, x)
    if y:
       a += await Get(C, D, z)
    return a

@rule
async def my_rule(...):
    ...
    a = await _collect_thingamabobs(x, y, z)
    ....

Code: https://github.com/pantsbuild/pants/blob/f43b0b92931c63509459f1113f7ca1ee34946225/src/python/pants/engine/rules.py#L282