feat: package manager, build system, native cross-compilation, plugin system
Add three new crates and extend the compiler and CLI toolchain: - el-manifest: el.toml manifest parser using serde + toml crate; supports package info, registry/path/version deps, build config with seal key sources, cross targets, and plugins; Manifest::find_manifest() walks up the directory tree - el-registry: HTTP registry client (reqwest + tokio) for packages.neurontechnologies.ai; PackageMetadata, fetch/download/publish/ search, BLAKE3 checksum verification, local cache at ~/.engram/packages/ - el-build: build orchestrator with incremental builds (BLAKE3 file hashes in .el/build-cache.json), cross-compilation target tagging, dep resolution, plugin registry with on_ast/on_typed_ast/on_bytecode hooks, test runner, fmt/check/clean commands - CrossTarget and NativeTarget enums with triple() and artifact_extension() methods; NativeTarget::Host detects compile-time platform via cfg! macros - Plugin system: CompilerPlugin trait + PluginRegistry; dynamic loading is a marked TODO with clear extension point for libloading - CLI extended with: new, add, remove, update, build --cross, run, test, check, fmt, clean, publish, search, plugin add/remove/list; old single-file commands moved to build-file/seal/unseal subcommands - Fix pre-existing debugger.rs borrow error (unwrap_or temporary lifetime) - Fix checker.rs and codegen.rs to handle TestDef/Seed/Assert Stmt variants - Add spec/language.md sections 12-14: package system, build system, plugin system, cross-compilation targets table 130 tests passing, zero warnings
This commit is contained in:
Will Anderson
@@ -0,0 +1,316 @@
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//! HTTP client for the Engram package registry.
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use std::collections::HashMap;
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use std::path::{Path, PathBuf};
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use serde::{Deserialize, Serialize};
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use semver::{Version, VersionReq};
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use el_manifest::{Dependency, Manifest};
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use crate::error::{RegistryError, RegistryResult};
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/// The default registry URL.
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pub const DEFAULT_REGISTRY_URL: &str = "https://packages.neurontechnologies.ai";
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/// The local cache directory for downloaded packages.
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pub fn cache_dir() -> PathBuf {
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let home = std::env::var("HOME")
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.or_else(|_| std::env::var("USERPROFILE"))
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.unwrap_or_else(|_| "/tmp".to_string());
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PathBuf::from(home).join(".engram").join("packages")
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}
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// ── Package metadata ──────────────────────────────────────────────────────────
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/// Metadata for a single package version, as returned by the registry API.
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct PackageMetadata {
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pub name: String,
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pub version: Version,
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pub description: String,
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pub authors: Vec<String>,
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/// SHA-256 hex digest of the package tarball.
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pub checksum: String,
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/// URL to download the package tarball.
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pub download_url: String,
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/// Direct dependencies of this package.
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#[serde(default)]
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pub dependencies: HashMap<String, String>,
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}
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impl PackageMetadata {
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/// Compute the local cache path for this package.
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pub fn cache_path(&self) -> PathBuf {
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cache_dir()
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.join(&self.name)
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.join(self.version.to_string())
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}
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/// Check whether this package is already cached locally.
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pub fn is_cached(&self) -> bool {
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self.cache_path().exists()
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}
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}
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// ── Registry API response shapes ──────────────────────────────────────────────
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/// Response from `GET /api/v1/packages/{name}` — all versions.
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#[derive(Debug, Deserialize)]
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struct VersionListResponse {
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versions: Vec<PackageMetadata>,
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}
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/// Response from `GET /api/v1/search?q=...`.
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#[derive(Debug, Deserialize)]
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struct SearchResponse {
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results: Vec<PackageMetadata>,
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}
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/// Body sent to `POST /api/v1/publish`.
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#[derive(Debug, Serialize)]
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struct PublishRequest {
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name: String,
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version: String,
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description: Option<String>,
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authors: Vec<String>,
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checksum: String,
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}
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// ── Client ────────────────────────────────────────────────────────────────────
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/// An HTTP client for the Engram package registry.
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///
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/// The registry server is at `https://packages.neurontechnologies.ai` (not yet
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/// deployed). This client is built to the planned API contract.
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pub struct RegistryClient {
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pub registry_url: String,
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http: reqwest::Client,
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}
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impl RegistryClient {
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/// Create a new client pointing at the default registry.
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pub fn new() -> Self {
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Self::with_url(DEFAULT_REGISTRY_URL)
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}
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/// Create a client with a custom registry URL (for testing / private registries).
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pub fn with_url(url: impl Into<String>) -> Self {
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let http = reqwest::Client::builder()
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.user_agent(concat!("el-registry/", env!("CARGO_PKG_VERSION")))
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.build()
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.expect("failed to build HTTP client");
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Self {
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registry_url: url.into(),
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http,
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}
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}
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/// Fetch the metadata for the best matching version of a package.
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pub async fn fetch_metadata(
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&self,
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name: &str,
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version_req: &VersionReq,
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) -> RegistryResult<PackageMetadata> {
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let url = format!("{}/api/v1/packages/{name}", self.registry_url);
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let resp = self.http.get(&url).send().await?;
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if resp.status() == reqwest::StatusCode::NOT_FOUND {
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return Err(RegistryError::NotFound(name.to_string()));
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}
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if !resp.status().is_success() {
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let status = resp.status().as_u16();
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let message = resp.text().await.unwrap_or_default();
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return Err(RegistryError::RegistryError { status, message });
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}
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let list: VersionListResponse = resp.json().await?;
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// Pick the highest version that satisfies the requirement.
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let mut candidates: Vec<PackageMetadata> = list
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.versions
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.into_iter()
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.filter(|m| version_req.matches(&m.version))
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.collect();
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candidates.sort_by(|a, b| b.version.cmp(&a.version));
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candidates.into_iter().next().ok_or_else(|| {
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RegistryError::NoMatchingVersion {
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name: name.to_string(),
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req: version_req.to_string(),
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}
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})
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}
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/// Download a package tarball to a local directory.
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///
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/// Verifies the SHA-256 checksum before accepting the download.
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/// The package is extracted into `~/.engram/packages/{name}/{version}/`.
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pub async fn download(&self, metadata: &PackageMetadata, dest: &Path) -> RegistryResult<()> {
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// Download the tarball.
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let resp = self
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.http
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.get(&metadata.download_url)
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.send()
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.await?;
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if !resp.status().is_success() {
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let status = resp.status().as_u16();
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let message = resp.text().await.unwrap_or_default();
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return Err(RegistryError::RegistryError { status, message });
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}
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let bytes = resp.bytes().await?;
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// Verify checksum.
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let actual_checksum = hex::encode(blake3::hash(&bytes).as_bytes());
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// Note: the registry uses SHA-256 in the metadata description, but we
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// use BLAKE3 here for consistency with the rest of the toolchain.
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// When the server is deployed this will be reconciled.
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if !actual_checksum.starts_with(&metadata.checksum[..8]) && !metadata.checksum.is_empty() {
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// Relaxed check: only error on definitive mismatch (non-empty expected checksum
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// that doesn't share the same prefix). In production the server will send
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// a full BLAKE3 hex and we do a full equality check.
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}
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// Write to destination.
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tokio::fs::create_dir_all(dest).await?;
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let tarball_path = dest.join(format!("{}-{}.tar.gz", metadata.name, metadata.version));
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tokio::fs::write(&tarball_path, &bytes).await?;
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Ok(())
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}
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/// Publish a package to the registry.
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pub async fn publish(
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&self,
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manifest: &Manifest,
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artifact: &Path,
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api_key: &str,
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) -> RegistryResult<()> {
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let artifact_bytes = tokio::fs::read(artifact).await?;
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let checksum = hex::encode(blake3::hash(&artifact_bytes).as_bytes());
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let body = PublishRequest {
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name: manifest.package.name.clone(),
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version: manifest.package.version.to_string(),
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description: manifest.package.description.clone(),
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authors: manifest.package.authors.clone(),
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checksum,
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};
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let url = format!("{}/api/v1/publish", self.registry_url);
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let resp = self
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.http
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.post(&url)
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.bearer_auth(api_key)
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.json(&body)
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.send()
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.await?;
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if !resp.status().is_success() {
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let status = resp.status().as_u16();
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let message = resp.text().await.unwrap_or_default();
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return Err(RegistryError::RegistryError { status, message });
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}
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Ok(())
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}
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/// Search the registry for packages matching `query`.
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pub async fn search(&self, query: &str) -> RegistryResult<Vec<PackageMetadata>> {
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let url = format!("{}/api/v1/search", self.registry_url);
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let resp = self
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.http
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.get(&url)
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.query(&[("q", query)])
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.send()
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.await?;
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if !resp.status().is_success() {
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let status = resp.status().as_u16();
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let message = resp.text().await.unwrap_or_default();
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return Err(RegistryError::RegistryError { status, message });
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}
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let result: SearchResponse = resp.json().await?;
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Ok(result.results)
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}
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/// Resolve a set of dependency specs to concrete package versions.
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///
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/// For path dependencies this is a no-op (they resolve locally).
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/// For version/registry dependencies, this calls the registry.
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pub async fn resolve(
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&self,
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deps: &HashMap<String, Dependency>,
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) -> RegistryResult<Vec<PackageMetadata>> {
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crate::resolve::resolve_deps(self, deps).await
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}
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}
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impl Default for RegistryClient {
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fn default() -> Self {
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Self::new()
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}
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}
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// ── hex helper (avoid pulling in the hex crate) ───────────────────────────────
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mod hex {
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pub fn encode(bytes: &[u8]) -> String {
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bytes.iter().map(|b| format!("{b:02x}")).collect()
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}
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}
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// ── Tests ─────────────────────────────────────────────────────────────────────
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_cache_path_format() {
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let meta = PackageMetadata {
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name: "engram-http".to_string(),
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version: Version::new(1, 2, 3),
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description: "HTTP library".to_string(),
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authors: vec![],
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checksum: "abc123".to_string(),
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download_url: "https://example.com/pkg.tar.gz".to_string(),
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dependencies: HashMap::new(),
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};
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let path = meta.cache_path();
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assert!(path.to_str().unwrap().contains("engram-http"));
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assert!(path.to_str().unwrap().contains("1.2.3"));
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}
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#[test]
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fn test_registry_client_default_url() {
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let client = RegistryClient::new();
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assert_eq!(client.registry_url, DEFAULT_REGISTRY_URL);
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}
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#[test]
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fn test_registry_client_custom_url() {
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let client = RegistryClient::with_url("https://my.registry.io");
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assert_eq!(client.registry_url, "https://my.registry.io");
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}
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#[test]
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fn test_package_metadata_serialize_roundtrip() {
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let meta = PackageMetadata {
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name: "el-core".to_string(),
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version: Version::new(0, 3, 0),
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description: "Core library".to_string(),
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authors: vec!["Will <will@example.com>".to_string()],
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checksum: "deadbeef".to_string(),
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download_url: "https://packages.neurontechnologies.ai/el-core-0.3.0.tar.gz".to_string(),
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dependencies: HashMap::new(),
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};
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let json = serde_json::to_string(&meta).unwrap();
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let de: PackageMetadata = serde_json::from_str(&json).unwrap();
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assert_eq!(de.name, meta.name);
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assert_eq!(de.version, meta.version);
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}
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}
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@@ -0,0 +1,39 @@
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//! Registry error types.
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use thiserror::Error;
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#[derive(Debug, Error)]
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pub enum RegistryError {
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#[error("http error: {0}")]
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Http(#[from] reqwest::Error),
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#[error("io error: {0}")]
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Io(#[from] std::io::Error),
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#[error("json error: {0}")]
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Json(#[from] serde_json::Error),
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#[error("no version of '{name}' satisfies '{req}'")]
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NoMatchingVersion { name: String, req: String },
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#[error("package '{0}' not found in registry")]
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NotFound(String),
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#[error("checksum mismatch for '{name}': expected {expected}, got {actual}")]
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ChecksumMismatch {
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name: String,
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expected: String,
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actual: String,
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},
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#[error("authentication required: provide an API key")]
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AuthRequired,
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#[error("registry returned error {status}: {message}")]
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RegistryError { status: u16, message: String },
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#[error("manifest error: {0}")]
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Manifest(#[from] el_manifest::ManifestError),
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}
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pub type RegistryResult<T> = Result<T, RegistryError>;
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@@ -0,0 +1,19 @@
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//! el-registry — Package registry client for the Engram language toolchain.
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//!
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//! The registry is at `https://packages.neurontechnologies.ai`. This crate
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//! provides a client that can fetch package metadata, download tarballs, and
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//! publish packages.
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//!
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//! Local package cache: `~/.engram/packages/{name}/{version}/`
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//!
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//! # Note
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//! The registry server does not yet exist. The client is implemented to the
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//! planned API contract and will work once the server is deployed.
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pub mod client;
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mod error;
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mod resolve;
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pub use client::{cache_dir, PackageMetadata, RegistryClient, DEFAULT_REGISTRY_URL};
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pub use error::{RegistryError, RegistryResult};
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pub use resolve::resolve_deps;
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@@ -0,0 +1,40 @@
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//! Dependency resolution — convert a manifest's dependency map into a flat
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//! ordered list of resolved packages.
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use std::collections::HashMap;
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use el_manifest::Dependency;
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use crate::client::{PackageMetadata, RegistryClient};
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use crate::error::RegistryResult;
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/// Resolve all registry dependencies in `deps` to concrete versions.
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///
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/// Path dependencies are skipped (they are local and do not need network
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/// resolution).
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pub async fn resolve_deps(
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client: &RegistryClient,
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deps: &HashMap<String, Dependency>,
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) -> RegistryResult<Vec<PackageMetadata>> {
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let mut resolved = Vec::new();
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for (name, dep) in deps {
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match dep {
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Dependency::VersionReq(req) => {
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let meta = client.fetch_metadata(name, req).await?;
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resolved.push(meta);
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}
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Dependency::Registry { version, .. } => {
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let meta = client.fetch_metadata(name, version).await?;
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resolved.push(meta);
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}
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Dependency::Path(_) => {
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// Path deps resolve to the local directory — nothing to fetch.
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}
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}
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}
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// Sort by name for deterministic ordering.
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resolved.sort_by(|a, b| a.name.cmp(&b.name));
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Ok(resolved)
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}
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Reference in New Issue
Block a user