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Add a universal resolution mode to pip compile (#4505)

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## Summary

This needs more tests and a few more changes, but checkpointing it for
now.
This commit is contained in:
Charlie Marsh 2024-06-25 17:28:50 -04:00 • committed by GitHub
parent f2f48d339e
commit e1708689a9
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10 changed files with 186 additions and 27 deletions
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34
crates/uv-resolver/src/python_requirement.rs
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@ -1,5 +1,5 @@
use pep440_rs::VersionSpecifiers;
use pep508_rs::StringVersion;
use pep440_rs::{Operator, Version, VersionSpecifier, VersionSpecifiers};
use pep508_rs::{MarkerExpression, MarkerTree, MarkerValueVersion, StringVersion};
use uv_toolchain::{Interpreter, PythonVersion};
use crate::RequiresPython;
@ -59,10 +59,32 @@ impl PythonRequirement {
self.target.as_ref()
}
/// Return the target version of Python as a "requires python" type,
/// if available.
pub(crate) fn requires_python(&self) -> Option<&RequiresPython> {
self.target().and_then(|target| target.as_requires_python())
/// Return a [`MarkerTree`] representing the Python requirement.
///
/// See: [`RequiresPython::to_marker_tree`]
pub fn to_marker_tree(&self) -> MarkerTree {
let version = match &self.target {
None => self.installed.version.clone(),
Some(PythonTarget::Version(version)) => version.version.clone(),
Some(PythonTarget::RequiresPython(requires_python)) => {
return requires_python.to_marker_tree()
}
};
let version_major_minor_only = Version::new(version.release().iter().take(2));
let expr_python_version = MarkerExpression::Version {
key: MarkerValueVersion::PythonVersion,
specifier: VersionSpecifier::from_version(Operator::Equal, version_major_minor_only)
.unwrap(),
};
let expr_python_full_version = MarkerExpression::Version {
key: MarkerValueVersion::PythonFullVersion,
specifier: VersionSpecifier::from_version(Operator::Equal, version).unwrap(),
};
MarkerTree::And(vec![
MarkerTree::Expression(expr_python_version),
MarkerTree::Expression(expr_python_full_version),
])
}
}