fix: change dependency types for removed peers

CHANGELOG.md

@@ -6,6 +6,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Change dependency types for removed peer dependencies by @daimond113
+
 ### Changed
 - Switch from `log` to `tracing` for logging by @daimond113
 

src/lockfile.rs

@@ -32,6 +32,9 @@ pub struct DependencyGraphNode {
     pub dependencies: BTreeMap<PackageNames, (VersionId, String)>,
     /// The resolved (transformed, for example Peer -> Standard) type of the dependency
     pub resolved_ty: DependencyType,
+    /// Whether the resolved type should be Peer if this isn't depended on
+    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
+    pub is_peer: bool,
     /// The package reference
     pub pkg_ref: PackageRefs,
 }

src/resolver.rs

@@ -179,7 +179,7 @@ impl Project {
             let depth = path.len() - 1;
 
             tracing::debug!(
-                "{}resolving {specifier} from {}",
+                "{}resolving {specifier} ({ty:?}) from {}",
                 "\t".repeat(depth),
                 path.join(">")
             );
@@ -304,12 +304,14 @@ impl Project {
                     );
                 }
 
-                if already_resolved.resolved_ty == DependencyType::Peer
+                if already_resolved.resolved_ty == DependencyType::Peer {
-                    && resolved_ty == DependencyType::Standard
-                {
                     already_resolved.resolved_ty = resolved_ty;
                 }
 
+                if ty == DependencyType::Peer && depth == 0 {
+                    already_resolved.is_peer = true;
+                }
+
                 if already_resolved.direct.is_none() && depth == 0 {
                     already_resolved.direct = Some((alias.clone(), specifier.clone(), ty));
                 }
@@ -326,6 +328,11 @@ impl Project {
                 pkg_ref: pkg_ref.clone(),
                 dependencies: Default::default(),
                 resolved_ty,
+                is_peer: if depth == 0 {
+                    false
+                } else {
+                    ty == DependencyType::Peer
+                },
             };
             insert_node(
                 &mut graph,
@@ -388,8 +395,12 @@ impl Project {
             }
         }
 
-        for (name, versions) in &graph {
+        for (name, versions) in &mut graph {
             for (version_id, node) in versions {
+                if node.is_peer && node.direct.is_none() {
+                    node.resolved_ty = DependencyType::Peer;
+                }
+
                 if node.resolved_ty == DependencyType::Peer {
                     tracing::warn!("peer dependency {name}@{version_id} was not resolved");
                 }