Can I tell pants fmt to ignore a directory? I have some code generation with pants that i don't want to have black run against

I don't think that is it. I generate some code and treat it as a pants source root

For just

fmt

, use

skip_black=True

Can I do that for a source root?

You can set

__defaults__

in that source root to set

skip_black

on everything below the source root.

ooo thanks =D

Hmm.. this doesn't seem to be working?

__defaults__(all=dict(skip_black=True, skip_isort=True, skip_pylint=True))

Are you setting that at the source root level?

Gee, as an example (sorry I am having black ignore B rather than C):

.
├── A
│   ├── BUILD
│   └── moda.py
├── B
│   ├── BUILD
│   ├── modb.py
│   └── subpkg
│       ├── BUILD
│       └── bb.py
└── pants.toml

with A/BUILD:

python_sources()

B/BUILD:

__defaults__(all=dict(skip_black=True))
python_sources()

B/subpkg/BUILD:

python_sources()

and pants.toml

[GLOBAL]
pants_version = "2.16.0"

backend_packages = [
    "pants.backend.python",
    "pants.backend.python.lint.black",
]

and all the

*.py

being poorly formatted. With this setup,

pants fmt ::

only tries to fix

moda.py

. If you remove the

__default__

line, it will fix all of them.