system-requirements ignored when using no-default-feature = true

[pavelzw]

Checks

• I have checked that this issue has not already been reported.

• I have confirmed this bug exists on the latest version of pixi, using pixi --version.

Reproducible example

[project]
name = "my-project"
channels = ["conda-forge"]
platforms = ["linux-64"]

[system-requirements]
linux = "4.18.0"

[dependencies]
python = "*"

[feature.lint.dependencies]
ruff = "*"

[environments]
lint = { features = ["lint"], no-default-feature = true }

Issue description

When running pixi run -e lint ruff --version, i get the error

The current system has a mismatching virtual package. The project requires '__linux' to be at least version '5.10' but the system has version '4.18.0'

Expected behavior

IMO it would be more sensible if system-requirements would be included in the default feature similar to channels and platforms.

WDYT?

[pavelzw]

Although, with packages Like cuda this light be Not as clear… lets keep the behavior as is

[noamgot]

I just realized that the problem I mentioned in #346 (comment) occurs due to my environment having no-default-feature = true, but I don't understand why does it make sense?

[ruben-arts]

@noamgot all tables are part of the "default" feature if they are not specified specifically. e.g. [system-requirements] could be read as [feature.default.system-requirements]

I've improved the debugablity of the system requirements by adding them to pixi info in #2753. I hope that helps

[noamgot]

@ruben-arts I now understand this technically, but shouldn't some tables be "project-global"?

In my vase, I set no-default-feature = true for a lint environment, as I wanted to exclude the package dependencies, which are irrelevant for linting. Obviously, I want to keep it that way, but then I'll have to set the system-requirements for every feature (that relates to no-default-feature environment). Is there a best practice to handle this?

[noamgot]

UPDATE: as a workaround I did the following:

[tool.pixi.feature.sysreq.system-requirements]
linux = "4.15"

[tool.pixi.environments]
default = { features = ["sysreq", "test", "dev"], solve-group = "default" }
test = { features = ["sysreq", "test"], solve-group = "default" }
prod = { features = ["sysreq", "prod"], solve-group = "default" }
lint = { features = ["sysreq", "lint"], no-default-feature = true }
docs = { features = ["sysreq", "docs"], no-default-feature = true }

This way I define the system-requirements just once, and it's available for all environments (that was enough for my case)