From e918485e003b5c1eb99e1622c16731f04bf547c1 Mon Sep 17 00:00:00 2001 From: konstin Date: Tue, 3 Sep 2024 10:30:58 +0200 Subject: [PATCH] Prune unreachable packages from lockfile In transformers, we have: * `tensorflow-text`: `tensorflow-macos; python_full_version >= '3.13' and platform_machine == 'arm64' and platform_system == 'Darwin'` * `tensorflow-macos`: `tensorflow-cpu-aws; (python_full_version < '3.10' and platform_machine == 'aarch64' and platform_system == 'Linux') or (python_full_version >= '3.13' and platform_machine == 'aarch64' and platform_system == 'Linux') or (python_full_version >= '3.13' and platform_machine == 'arm64' and platform_system == 'Linux')` * `tensorflow-macos`: `tensorflow-intel; python_full_version >= '3.13' and platform_system == 'Windows'` This means that `tensorflow-cpu-aws` and `tensorflow-intel` can never be installed, and we can drop them from the lockfile. --- crates/uv-resolver/src/lock/mod.rs | 20 +++++ crates/uv-resolver/src/resolution/graph.rs | 90 +++++++++++++++++-- .../ecosystem__transformers-lock-file.snap | 72 --------------- 3 files changed, 103 insertions(+), 79 deletions(-) diff --git a/crates/uv-resolver/src/lock/mod.rs b/crates/uv-resolver/src/lock/mod.rs index dab7eb54c026..5da3864856e4 100644 --- a/crates/uv-resolver/src/lock/mod.rs +++ b/crates/uv-resolver/src/lock/mod.rs @@ -11,6 +11,7 @@ use itertools::Itertools; use petgraph::visit::EdgeRef; use rustc_hash::{FxHashMap, FxHashSet}; use toml_edit::{value, Array, ArrayOfTables, InlineTable, Item, Table, Value}; +use tracing::debug; use url::Url; use cache_key::RepositoryUrl; @@ -94,6 +95,10 @@ impl Lock { if !dist.is_base() { continue; } + if graph.reachability[&node_index].is_false() { + debug!("Removing unreachable package: `{}`", dist.package_id()); + continue; + } let fork_markers = graph .fork_markers(dist.name(), &dist.version, dist.dist.version_or_url().url()) .cloned() @@ -108,6 +113,10 @@ impl Lock { else { continue; }; + // Prune edges leading to unreachable nodes. + if graph.reachability[&edge.target()].is_false() { + continue; + } let marker = edge.weight().clone(); package.add_dependency(&requires_python, dependency_dist, marker, root)?; } @@ -126,6 +135,9 @@ impl Lock { let ResolutionGraphNode::Dist(dist) = &graph.petgraph[node_index] else { continue; }; + if graph.reachability[&node_index].is_false() { + continue; + } if let Some(extra) = dist.extra.as_ref() { let id = PackageId::from_annotated_dist(dist, root)?; let Some(package) = packages.get_mut(&id) else { @@ -140,6 +152,10 @@ impl Lock { else { continue; }; + // Prune edges leading to unreachable nodes. + if graph.reachability[&edge.target()].is_false() { + continue; + } let marker = edge.weight().clone(); package.add_optional_dependency( &requires_python, @@ -164,6 +180,10 @@ impl Lock { else { continue; }; + // Prune edges leading to unreachable nodes. + if graph.reachability[&edge.target()].is_false() { + continue; + } let marker = edge.weight().clone(); package.add_dev_dependency( &requires_python, diff --git a/crates/uv-resolver/src/resolution/graph.rs b/crates/uv-resolver/src/resolution/graph.rs index 75da6a43bce7..d96ba5334a76 100644 --- a/crates/uv-resolver/src/resolution/graph.rs +++ b/crates/uv-resolver/src/resolution/graph.rs @@ -1,17 +1,19 @@ -use indexmap::IndexSet; -use petgraph::{ - graph::{Graph, NodeIndex}, - Directed, Direction, -}; -use rustc_hash::{FxBuildHasher, FxHashMap, FxHashSet}; - use distribution_types::{ Dist, DistributionMetadata, Name, ResolutionDiagnostic, ResolvedDist, VersionId, VersionOrUrlRef, }; +use indexmap::IndexSet; use pep440_rs::{Version, VersionSpecifier}; use pep508_rs::{MarkerEnvironment, MarkerTree, MarkerTreeKind, VerbatimUrl}; +use petgraph::prelude::EdgeRef; +use petgraph::{ + graph::{Graph, NodeIndex}, + Directed, Direction, +}; use pypi_types::{HashDigest, ParsedUrlError, Requirement, VerbatimParsedUrl, Yanked}; +use rustc_hash::{FxBuildHasher, FxHashMap, FxHashSet}; +use std::collections::hash_map::Entry; +use std::fmt::{Display, Formatter}; use uv_configuration::{Constraints, Overrides}; use uv_distribution::Metadata; use uv_git::GitResolver; @@ -54,6 +56,8 @@ pub struct ResolutionGraph { /// If there are multiple options for a package, track which fork they belong to so we /// can write that to the lockfile and later get the correct preference per fork back. pub(crate) package_markers: FxHashMap, + /// The markers under which a package is reachable in the dependency tree. + pub(crate) reachability: FxHashMap, } #[derive(Debug)] @@ -62,6 +66,15 @@ pub(crate) enum ResolutionGraphNode { Dist(AnnotatedDist), } +impl Display for ResolutionGraphNode { + fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result { + match self { + ResolutionGraphNode::Root => f.write_str("root"), + ResolutionGraphNode::Dist(dist) => Display::fmt(dist, f), + } + } +} + #[derive(Eq, PartialEq, Hash)] struct PackageRef<'a> { package_name: &'a PackageName, @@ -197,6 +210,68 @@ impl ResolutionGraph { .collect() }; + // The markers under which a package is reachable in the dependency tree. + // + // Note that we build including the virtual packages due to how we propagate markers through + // the graph, even though we then only read the markers for base packages. + let mut reachability = FxHashMap::default(); + + // Collect the root nodes. + // + // Besides the actual virtual root node, virtual dev dependencies packages are also root + // nodes since the edges don't cover dev dependencies. + let mut queue: Vec<_> = petgraph + .node_indices() + .filter(|node_index| { + petgraph + .edges_directed(*node_index, Direction::Incoming) + .next() + .is_none() + }) + .collect(); + + // The root nodes are always applicable, unless the user has restricted resolver + // environments with `tool.uv.environments`. + let root_markers: MarkerTree = if fork_markers.is_empty() { + MarkerTree::TRUE + } else { + fork_markers + .iter() + .fold(MarkerTree::FALSE, |mut acc, marker| { + acc.or(marker.clone()); + acc + }) + }; + for root_index in &queue { + reachability.insert(*root_index, root_markers.clone()); + } + + // Propagate all markers through the graph, so that the eventual marker for each node is the + // union of the markers of each path we can reach the node by. + while let Some(parent_index) = queue.pop() { + let marker = reachability[&parent_index].clone(); + for child_edge in petgraph.edges_directed(parent_index, Direction::Outgoing) { + // The marker for all paths to the child through the parent. + let mut child_marker = child_edge.weight().clone(); + child_marker.and(marker.clone()); + match reachability.entry(child_edge.target()) { + Entry::Occupied(mut existing) => { + // If the marker is a subset of the existing marker (A ⊆ B exactly if + // A ∪ B = A), updating the child wouldn't change child's marker. + child_marker.or(existing.get().clone()); + if &child_marker != existing.get() { + existing.insert(child_marker); + queue.push(child_edge.target()); + } + } + Entry::Vacant(vacant) => { + vacant.insert(child_marker.clone()); + queue.push(child_edge.target()); + } + } + } + } + if matches!(resolution_strategy, ResolutionStrategy::Lowest) { report_missing_lower_bounds(&petgraph, &mut diagnostics); } @@ -211,6 +286,7 @@ impl ResolutionGraph { overrides: overrides.clone(), options, fork_markers, + reachability, }) } diff --git a/crates/uv/tests/snapshots/ecosystem__transformers-lock-file.snap b/crates/uv/tests/snapshots/ecosystem__transformers-lock-file.snap index 59aec34fd392..c59427a9d414 100644 --- a/crates/uv/tests/snapshots/ecosystem__transformers-lock-file.snap +++ b/crates/uv/tests/snapshots/ecosystem__transformers-lock-file.snap @@ -4793,40 +4793,6 @@ wheels = [ { url = "https://files.pythonhosted.org/packages/bd/cb/1358e60835aad684311cfab10e36375c09a8a627ed22f357ddc9f0556ca3/tensorflow_cpu-2.15.1-cp39-cp39-win_amd64.whl", hash = "sha256:951d78693b61239464bee5ae9c20b6c845d82ae0a2092ee5abebb96b5e2db02e", size = 2133 }, ] -[[package]] -name = "tensorflow-cpu-aws" -version = "2.15.1" -source = { registry = "https://pypi.org/simple" } -dependencies = [ - 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