feat(engines): print incompatibility warning for dependencies

Adds a warning message when a dependency depends
on an incompatible engine.

registry/src/endpoints/publish_version.rs

@@ -368,6 +368,7 @@ pub async fn publish_package(
 		let new_entry = IndexFileEntry {
 			target: manifest.target.clone(),
 			published_at: chrono::Utc::now(),
+			engines: manifest.engines.clone(),
 			description: manifest.description.clone(),
 			license: manifest.license.clone(),
 			authors: manifest.authors.clone(),

src/cli/install.rs

@@ -1,10 +1,3 @@
-use std::{
-	collections::{BTreeMap, BTreeSet, HashMap},
-	num::NonZeroUsize,
-	sync::Arc,
-	time::Instant,
-};
-
 use super::files::make_executable;
 use crate::cli::{
 	bin_dir,
@@ -16,10 +9,19 @@ use colored::Colorize;
 use fs_err::tokio as fs;
 use pesde::{
 	download_and_link::{DownloadAndLinkHooks, DownloadAndLinkOptions},
+	engine::EngineKind,
 	graph::{DependencyGraph, DependencyGraphWithTarget},
 	lockfile::Lockfile,
-	manifest::{target::TargetKind, DependencyType},
-	Project, RefreshedSources, LOCKFILE_FILE_NAME, MANIFEST_FILE_NAME,
+	manifest::{target::TargetKind, DependencyType, Manifest},
+	names::PackageNames,
+	source::{pesde::PesdePackageSource, refs::PackageRefs},
+	version_matches, Project, RefreshedSources, LOCKFILE_FILE_NAME, MANIFEST_FILE_NAME,
+};
+use std::{
+	collections::{BTreeMap, BTreeSet, HashMap},
+	num::NonZeroUsize,
+	sync::Arc,
+	time::Instant,
 };
 use tokio::task::JoinSet;
 
@@ -196,7 +198,8 @@ pub async fn install(
 	let overrides = resolve_overrides(&manifest)?;
 
 	let (new_lockfile, old_graph) =
-		reporters::run_with_reporter(|_, root_progress, reporter| async {
+		reporters::run_with_reporter(|multi, root_progress, reporter| async {
+			let multi = multi;
 			let root_progress = root_progress;
 
 			root_progress.set_prefix(format!("{} {}: ", manifest.name, manifest.target));
@@ -300,9 +303,104 @@ pub async fn install(
 					root_progress.set_message("patch");
 
 					project
-						.apply_patches(&downloaded_graph.convert(), reporter)
+						.apply_patches(&downloaded_graph.clone().convert(), reporter)
 						.await?;
 				}
+
+				#[cfg(feature = "version-management")]
+				{
+					let mut tasks = manifest
+						.engines
+						.into_iter()
+						.map(|(engine, req)| async move {
+							Ok::<_, anyhow::Error>(
+								crate::cli::version::get_installed_versions(engine)
+									.await?
+									.into_iter()
+									.filter(|version| version_matches(version, &req))
+									.last()
+									.map(|version| (engine, version)),
+							)
+						})
+						.collect::<JoinSet<_>>();
+
+					let mut resolved_engine_versions = HashMap::new();
+					while let Some(task) = tasks.join_next().await {
+						let Some((engine, version)) = task.unwrap()? else {
+							continue;
+						};
+						resolved_engine_versions.insert(engine, version);
+					}
+
+					let manifest_target_kind = manifest.target.kind();
+					let mut tasks = downloaded_graph.iter()
+						.map(|(id, node)| {
+							let id = id.clone();
+							let node = node.clone();
+							let project = project.clone();
+
+							async move {
+								let engines = match &node.node.pkg_ref {
+									PackageRefs::Pesde(pkg_ref) => {
+										let source = PesdePackageSource::new(pkg_ref.index_url.clone());
+										#[allow(irrefutable_let_patterns)]
+										let PackageNames::Pesde(name) = id.name() else {
+											panic!("unexpected package name");
+										};
+
+										let mut file = source.read_index_file(name, &project).await.context("failed to read package index file")?.context("package not found in index")?;
+										file
+											.entries
+											.remove(id.version_id())
+											.context("package version not found in index")?
+											.engines
+									}
+									#[cfg(feature = "wally-compat")]
+									PackageRefs::Wally(_) => Default::default(),
+									_ => {
+										let path = node.node.container_folder_from_project(
+											&id,
+											&project,
+											manifest_target_kind,
+										);
+
+										match fs::read_to_string(path.join(MANIFEST_FILE_NAME)).await {
+											Ok(manifest) => match toml::from_str::<Manifest>(&manifest) {
+												Ok(manifest) => manifest.engines,
+												Err(e) => return Err(e).context("failed to read package manifest"),
+											},
+											Err(e) if e.kind() == std::io::ErrorKind::NotFound => Default::default(),
+											Err(e) => return Err(e).context("failed to read package manifest"),
+										}
+									}
+								};
+
+								Ok((id, engines))
+							}
+						})
+						.collect::<JoinSet<_>>();
+
+					while let Some(task) = tasks.join_next().await {
+						let (id, required_engines) = task.unwrap()?;
+
+						for (engine, req) in required_engines {
+							if engine == EngineKind::Pesde {
+								continue;
+							}
+
+							let Some(version) = resolved_engine_versions.get(&engine) else {
+								tracing::debug!("package {id} requires {engine} {req}, but it is not installed");
+								continue;
+							};
+
+							if !version_matches(version, &req) {
+								multi.suspend(|| {
+									println!("{}: package {id} requires {engine} {req}, but {version} is installed", "warn".yellow().bold());
+								});
+							}
+						}
+					}
+				}
 			}
 
 			root_progress.set_message("finish");

src/cli/version.rs

@@ -142,25 +142,20 @@ pub async fn check_for_updates(reqwest: &reqwest::Client) -> anyhow::Result<()>
 	Ok(())
 }
 
-#[instrument(skip(reqwest), level = "trace")]
-pub async fn get_or_download_engine(
-	reqwest: &reqwest::Client,
-	engine: EngineKind,
-	req: VersionReq,
-) -> anyhow::Result<PathBuf> {
+const ENGINES_DIR: &str = "engines";
+
+#[instrument(level = "trace")]
+pub async fn get_installed_versions(engine: EngineKind) -> anyhow::Result<BTreeSet<Version>> {
 	let source = engine.source();
-
-	let path = home_dir()?.join("engines").join(source.directory());
-	fs::create_dir_all(&path)
-		.await
-		.context("failed to create engines directory")?;
-
-	let mut read_dir = fs::read_dir(&path)
-		.await
-		.context("failed to read engines directory")?;
-
+	let path = home_dir()?.join(ENGINES_DIR).join(source.directory());
 	let mut installed_versions = BTreeSet::new();
 
+	let mut read_dir = match fs::read_dir(&path).await {
+		Ok(read_dir) => read_dir,
+		Err(e) if e.kind() == std::io::ErrorKind::NotFound => return Ok(installed_versions),
+		Err(e) => return Err(e).context("failed to read engines directory"),
+	};
+
 	while let Some(entry) = read_dir.next_entry().await? {
 		let path = entry.path();
 
@@ -173,6 +168,20 @@ pub async fn get_or_download_engine(
 		}
 	}
 
+	Ok(installed_versions)
+}
+
+#[instrument(skip(reqwest), level = "trace")]
+pub async fn get_or_download_engine(
+	reqwest: &reqwest::Client,
+	engine: EngineKind,
+	req: VersionReq,
+) -> anyhow::Result<PathBuf> {
+	let source = engine.source();
+	let path = home_dir()?.join(ENGINES_DIR).join(source.directory());
+
+	let installed_versions = get_installed_versions(engine).await?;
+
 	let max_matching = installed_versions
 		.iter()
 		.filter(|v| version_matches(v, &req))

src/source/pesde/mod.rs

@@ -13,6 +13,7 @@ use pkg_ref::PesdePackageRef;
 use specifier::PesdeDependencySpecifier;
 
 use crate::{
+	engine::EngineKind,
 	manifest::{target::Target, DependencyType},
 	names::{PackageName, PackageNames},
 	reporters::{response_to_async_read, DownloadProgressReporter},
@@ -27,6 +28,7 @@ use crate::{
 };
 use fs_err::tokio as fs;
 use futures::StreamExt;
+use semver::VersionReq;
 use tokio::{pin, task::spawn_blocking};
 use tracing::instrument;
 
@@ -94,13 +96,18 @@ impl PesdePackageSource {
 		.unwrap()
 	}
 
-	fn read_index_file(
+	/// Reads the index file of a package
+	pub async fn read_index_file(
 		&self,
 		name: &PackageName,
 		project: &Project,
 	) -> Result<Option<IndexFile>, errors::ReadIndexFileError> {
+		let path = self.path(project);
+		let name = name.clone();
+
+		spawn_blocking(move || {
 			let (scope, name) = name.as_str();
-		let repo = gix::open(self.path(project)).map_err(Box::new)?;
+			let repo = gix::open(&path).map_err(Box::new)?;
 			let tree = root_tree(&repo).map_err(Box::new)?;
 			let string = match read_file(&tree, [scope, name]) {
 				Ok(Some(s)) => s,
@@ -111,6 +118,9 @@ impl PesdePackageSource {
 			};
 
 			toml::from_str(&string).map_err(Into::into)
+		})
+		.await
+		.unwrap()
 	}
 }
 
@@ -140,7 +150,7 @@ impl PackageSource for PesdePackageSource {
 		} = options;
 
 		let Some(IndexFile { meta, entries, .. }) =
-			self.read_index_file(&specifier.name, project)?
+			self.read_index_file(&specifier.name, project).await?
 		else {
 			return Err(errors::ResolveError::NotFound(specifier.name.to_string()));
 		};
@@ -296,7 +306,8 @@ impl PackageSource for PesdePackageSource {
 			panic!("unexpected package name");
 		};
 
-		let Some(IndexFile { mut entries, .. }) = self.read_index_file(name, &options.project)?
+		let Some(IndexFile { mut entries, .. }) =
+			self.read_index_file(name, &options.project).await?
 		else {
 			return Err(errors::GetTargetError::NotFound(name.to_string()));
 		};
@@ -460,6 +471,9 @@ pub struct IndexFileEntry {
 	/// When this package was published
 	#[serde(default = "chrono::Utc::now")]
 	pub published_at: chrono::DateTime<chrono::Utc>,
+	/// The engines this package supports
+	#[serde(default, skip_serializing_if = "BTreeMap::is_empty")]
+	pub engines: BTreeMap<EngineKind, VersionReq>,
 
 	/// The description of this package
 	#[serde(default, skip_serializing_if = "Option::is_none")]