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Log when we fork (#4386)

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We currently don't log if or when we split the resolution graphs into
forks. I ran into this when trying to debug missing forking.
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konsti 2024-06-18 18:47:06 +02:00 • committed by GitHub
parent fa6ed34105
commit e486eb86b7
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1 changed files with 24 additions and 4 deletions
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28
crates/uv-resolver/src/resolver/mod.rs
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@ -544,7 +544,18 @@ impl<InstalledPackages: InstalledPackagesProvider> ResolverState<InstalledPackag
);
forked_states.push(state);
}
ForkedDependencies::Forked(forks) => {
ForkedDependencies::Forked {
forks,
diverging_packages,
} => {
debug!(
"Splitting resolution on {} over {}",
state.next,
diverging_packages
.iter()
.map(ToString::to_string)
.join(", ")
);
assert!(forks.len() >= 2);
// This is a somewhat tortured technique to ensure
// that our resolver state is only cloned as much
@ -1996,7 +2007,8 @@ impl Dependencies {
dependencies: vec![],
markers: MarkerTree::And(vec![]),
}];
for (_, possible_forks) in by_name {
let mut diverging_packages = Vec::new();
for (name, possible_forks) in by_name {
let fork_groups = match possible_forks {
PossibleForks::PossiblyForking(fork_groups) => fork_groups,
PossibleForks::NoForkPossible(indices) => {
@ -2028,8 +2040,12 @@ impl Dependencies {
new_forks.extend(new_forks_for_group);
}
forks = new_forks;
diverging_packages.push(name.clone());
}
ForkedDependencies::Forked {
forks,
diverging_packages,
}
ForkedDependencies::Forked(forks)
}
}
@ -2052,7 +2068,11 @@ enum ForkedDependencies {
/// Note that there is always at least two forks. If there would
/// be fewer than 2 forks, then there is no fork at all and the
/// `Unforked` variant is used instead.
Forked(Vec<Fork>),
Forked {
forks: Vec<Fork>,
/// The package(s) with different requirements for disjoint markers.
diverging_packages: Vec<PackageName>,
},
}
/// A single fork in a list of dependencies.