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-rw-r--r--crates/mozart-core/src/composer.rs500
-rw-r--r--crates/mozart-core/src/factory.rs299
2 files changed, 761 insertions, 38 deletions
diff --git a/crates/mozart-core/src/composer.rs b/crates/mozart-core/src/composer.rs
index 2e252c6..6fe022a 100644
--- a/crates/mozart-core/src/composer.rs
+++ b/crates/mozart-core/src/composer.rs
@@ -1,18 +1,23 @@
-//! Composer-equivalent root state: composer.json + effective config.
+//! Composer-equivalent root state: composer.json + effective config +
+//! the manager objects commands look up off the root [`Composer`].
//!
-//! Mirrors the role of `Composer\Composer` (PHP) to the extent that command
-//! handlers need today: a single struct loaded from the project directory,
-//! exposing a `config()` accessor over the merged Composer config.
+//! Mirrors the role of `Composer\Composer` / `Composer\PartialComposer`
+//! (PHP) — a state container with getters for the merged [`Config`], the
+//! root [`RawPackageData`], the [`RepositoryManager`], and the
+//! [`InstallationManager`]. Wiring lives in [`crate::factory`], the same
+//! split as upstream's `Composer\Factory::createComposer`.
//!
//! See `Composer\Command\BaseCommand::requireComposer()` /
//! `Composer\Command\BaseCommand::tryComposer()` for the upstream contract
//! that [`Composer::require`] and [`Composer::try_load`] are modelled on.
-use std::collections::BTreeMap;
use std::path::{Path, PathBuf};
-use crate::config::{Config, resolve_references};
-use crate::factory::create_config;
+use regex::Regex;
+
+use crate::config::Config;
+use crate::factory::create_composer;
+use crate::package::RawPackageData;
/// Return the Composer home directory, respecting `COMPOSER_HOME` and falling
/// back to the platform default using Composer-compatible logic.
@@ -72,17 +77,433 @@ fn use_xdg() -> bool {
|| std::path::Path::new("/etc/xdg").is_dir()
}
-/// Project-level Composer state. Currently only carries the merged
-/// [`Config`]; additional accessors (root package, locker, …) can be
-/// layered on as commands need them.
+/// Project-level Composer state. Mirrors `Composer\PartialComposer` /
+/// `Composer\Composer` in PHP, exposing the subset of getters command
+/// handlers need today: config, root package, repository manager,
+/// installation manager, autoload generator, and locker. More
+/// managers (download, …) can be layered on as commands need them.
pub struct Composer {
project_dir: PathBuf,
config: Config,
+ package: RawPackageData,
+ repository_manager: RepositoryManager,
+ installation_manager: InstallationManager,
+ autoload_generator: AutoloadGenerator,
+ locker: Locker,
+}
+
+/// Subset of `Composer\Package\PackageInterface` needed by the
+/// installation manager. Today only the fields referenced by
+/// `LibraryInstaller::getInstallPath` (`prettyName`, `targetDir`).
+#[derive(Debug, Clone)]
+pub struct LocalPackage {
+ pretty_name: String,
+ target_dir: Option<String>,
+}
+
+impl LocalPackage {
+ pub fn new(pretty_name: String, target_dir: Option<String>) -> Self {
+ Self {
+ pretty_name,
+ target_dir,
+ }
+ }
+
+ /// Original case-preserving package name (`vendor/Name`).
+ /// Mirrors `PackageInterface::getPrettyName`.
+ pub fn pretty_name(&self) -> &str {
+ &self.pretty_name
+ }
+
+ /// Optional sub-directory inside the install path that holds the
+ /// package code. Mirrors `PackageInterface::getTargetDir`.
+ pub fn target_dir(&self) -> Option<&str> {
+ self.target_dir.as_deref()
+ }
+}
+
+/// In-memory mirror of `Composer\Repository\InstalledFilesystemRepository`
+/// (`vendor/composer/installed.json`). Carries enough information for
+/// commands that walk the local install (currently: `dump-autoload`).
+pub struct LocalRepository {
+ packages: Vec<LocalPackage>,
+}
+
+impl LocalRepository {
+ pub fn new(packages: Vec<LocalPackage>) -> Self {
+ Self { packages }
+ }
+
+ /// Mirror of `WritableRepositoryInterface::getCanonicalPackages` —
+ /// "at most one package of each name, with aliases unfolded". Mozart
+ /// does not yet model alias packages, so this is currently a straight
+ /// pass-through over the loaded packages.
+ pub fn canonical_packages(&self) -> impl Iterator<Item = &LocalPackage> {
+ self.packages.iter()
+ }
+}
+
+/// Mirror of `Composer\Repository\RepositoryManager`. Today only the
+/// local repository is wired up; remote repositories are loaded ad hoc by
+/// commands and will move here as the registry layer is ported.
+pub struct RepositoryManager {
+ local_repository: LocalRepository,
+}
+
+impl RepositoryManager {
+ pub fn new(local_repository: LocalRepository) -> Self {
+ Self { local_repository }
+ }
+
+ /// Mirror of `RepositoryManager::getLocalRepository`.
+ pub fn local_repository(&self) -> &LocalRepository {
+ &self.local_repository
+ }
+}
+
+/// Mirror of `Composer\Installer\InstallationManager`. Without an
+/// installer plugin chain Mozart only supports the `LibraryInstaller`
+/// behaviour (`vendor-dir/<pretty-name>(/<target-dir>)`).
+pub struct InstallationManager {
+ vendor_dir: PathBuf,
+}
+
+impl InstallationManager {
+ pub fn new(vendor_dir: PathBuf) -> Self {
+ Self { vendor_dir }
+ }
+
+ /// Resolved absolute path of the vendor directory. Not on PHP's
+ /// `InstallationManager`, but the autoload generator needs it
+ /// without the round-trip through `Config::get('vendor-dir')`.
+ pub fn vendor_dir(&self) -> &Path {
+ &self.vendor_dir
+ }
+
+ /// Mirror of `InstallationManager::getInstallPath` — the absolute
+ /// path on disk where a package's code is expected to live. Returns
+ /// `None` when the package has nothing on disk (metapackages); for
+ /// regular library packages this matches `LibraryInstaller::getInstallPath`.
+ pub fn get_install_path(&self, package: &LocalPackage) -> Option<PathBuf> {
+ let mut path = self.vendor_dir.join(package.pretty_name());
+ if let Some(td) = package.target_dir() {
+ path = path.join(td);
+ }
+ Some(path)
+ }
+}
+
+/// Mirror of `Composer\Autoload\AutoloadGenerator`.
+///
+/// PHP's class is stateful: `setDryRun`, `setDevMode`, … flip private
+/// flags that `dump()` later reads. Mozart deliberately diverges here —
+/// the per-call toggles live in [`AutoloadDumpOptions`] which is
+/// passed into `dump()` as a parameter, and [`AutoloadGenerator`] is a
+/// once-constructed handle that only holds dependencies that are
+/// genuinely lifetime-shared (PHP's `EventDispatcher` / `IO` will land
+/// here once they're ported). Today there are none, so the struct is
+/// empty — but keeping it as a real type preserves the
+/// `composer.autoload_generator().dump(...)` calling shape and gives a
+/// home for those dependencies later.
+pub struct AutoloadGenerator {
+ // Intentionally empty. EventDispatcher / IO will move here once
+ // ported; for now `dump()` (in `mozart-autoload`) reads everything
+ // it needs from its arguments.
+ _private: (),
+}
+
+impl AutoloadGenerator {
+ pub fn new() -> Self {
+ Self { _private: () }
+ }
+}
+
+impl Default for AutoloadGenerator {
+ fn default() -> Self {
+ Self::new()
+ }
+}
+
+/// Per-invocation toggles passed to
+/// `mozart_autoload::AutoloadGeneratorExt::dump`.
+///
+/// Diverges from PHP, where these live on `AutoloadGenerator` itself
+/// and are flipped by `setDryRun` / `setDevMode` / … . In Mozart the
+/// generator carries no transient state, so commands assemble an
+/// [`AutoloadDumpOptions`] and hand it to `dump()` directly.
+pub struct AutoloadDumpOptions {
+ /// `None` mirrors PHP's `private ?bool $devMode = null` — meaning
+ /// "auto-detect from `installed.json`'s `dev` flag at dump time".
+ /// `Some(_)` corresponds to an explicit `setDevMode` call.
+ pub dev_mode: Option<bool>,
+ /// `setClassMapAuthoritative`.
+ pub class_map_authoritative: bool,
+ /// `setApcu` first arg.
+ pub apcu: bool,
+ /// `setApcu` second arg. The prefix is recorded even when `apcu`
+ /// is false, matching the PHP signature.
+ pub apcu_prefix: Option<String>,
+ /// `setRunScripts`.
+ pub run_scripts: bool,
+ /// `setDryRun`.
+ pub dry_run: bool,
+ /// `setPlatformRequirementFilter`. Defaults to
+ /// `PlatformRequirementFilterFactory::ignoreNothing()`.
+ pub platform_requirement_filter: PlatformRequirementFilter,
+}
+
+impl AutoloadDumpOptions {
+ /// Same defaults as PHP's `AutoloadGenerator::__construct` — every
+ /// toggle off, dev-mode unset (auto-detect), filter set to
+ /// `IgnoreNothing`.
+ pub fn new() -> Self {
+ Self {
+ dev_mode: None,
+ class_map_authoritative: false,
+ apcu: false,
+ apcu_prefix: None,
+ run_scripts: false,
+ dry_run: false,
+ platform_requirement_filter: PlatformRequirementFilter::ignore_nothing(),
+ }
+ }
+}
+
+impl Default for AutoloadDumpOptions {
+ fn default() -> Self {
+ Self::new()
+ }
+}
+
+/// Mirror of `Composer\Filter\PlatformRequirementFilter\PlatformRequirementFilterInterface`
+/// and its three concrete implementations.
+///
+/// The autoload generator and resolver consult this when deciding
+/// whether to emit / enforce a `php`, `ext-*`, `lib-*`, or
+/// `composer-*` requirement. For non-platform packages every variant
+/// returns `false` — matching PHP's `IgnoreListPlatformRequirementFilter`
+/// short-circuiting via `PlatformRepository::isPlatformPackage`.
+pub enum PlatformRequirementFilter {
+ /// `IgnoreNothingPlatformRequirementFilter`. Default.
+ IgnoreNothing,
+ /// `IgnoreAllPlatformRequirementFilter` — every platform package is
+ /// ignored.
+ IgnoreAll,
+ /// `IgnoreListPlatformRequirementFilter` — match against an explicit
+ /// list of names (with `*` glob support). Names suffixed with `+`
+ /// only suppress the upper bound, mirroring the PHP constructor.
+ /// `None` for either regex means "no entries" (the corresponding
+ /// list was empty), short-circuiting to no match.
+ IgnoreList {
+ ignore_regex: Option<Regex>,
+ ignore_upper_bound_regex: Option<Regex>,
+ },
+}
+
+impl PlatformRequirementFilter {
+ /// Mirror of `PlatformRequirementFilterFactory::ignoreNothing`.
+ pub fn ignore_nothing() -> Self {
+ PlatformRequirementFilter::IgnoreNothing
+ }
+
+ /// Mirror of `PlatformRequirementFilterFactory::ignoreAll`.
+ pub fn ignore_all() -> Self {
+ PlatformRequirementFilter::IgnoreAll
+ }
+
+ /// Mirror of `PlatformRequirementFilterFactory::fromBoolOrList` for
+ /// the list branch. `reqs` accepts entries suffixed with `+` to
+ /// only ignore the upper bound (`IgnoreListPlatformRequirementFilter`'s
+ /// constructor splits on the same suffix).
+ pub fn from_list(reqs: &[String]) -> anyhow::Result<Self> {
+ let mut ignore_all: Vec<String> = Vec::new();
+ let mut ignore_upper_bound: Vec<String> = Vec::new();
+ for req in reqs {
+ if let Some(stripped) = req.strip_suffix('+') {
+ ignore_upper_bound.push(stripped.to_string());
+ } else {
+ ignore_all.push(req.clone());
+ }
+ }
+ Ok(PlatformRequirementFilter::IgnoreList {
+ ignore_regex: package_names_to_regexp(&ignore_all)?,
+ ignore_upper_bound_regex: package_names_to_regexp(&ignore_upper_bound)?,
+ })
+ }
+
+ /// Mirror of `PlatformRequirementFilterFactory::fromBoolOrList`.
+ pub fn from_bool_or_list(value: BoolOrList) -> anyhow::Result<Self> {
+ match value {
+ BoolOrList::Bool(true) => Ok(Self::ignore_all()),
+ BoolOrList::Bool(false) => Ok(Self::ignore_nothing()),
+ BoolOrList::List(list) => Self::from_list(&list),
+ }
+ }
+
+ /// Mirror of `PlatformRequirementFilterInterface::isIgnored`.
+ pub fn is_ignored(&self, req: &str) -> bool {
+ match self {
+ PlatformRequirementFilter::IgnoreNothing => false,
+ PlatformRequirementFilter::IgnoreAll => is_platform_package(req),
+ PlatformRequirementFilter::IgnoreList { ignore_regex, .. } => {
+ is_platform_package(req) && ignore_regex.as_ref().is_some_and(|re| re.is_match(req))
+ }
+ }
+ }
+
+ /// Mirror of `PlatformRequirementFilterInterface::isUpperBoundIgnored`.
+ pub fn is_upper_bound_ignored(&self, req: &str) -> bool {
+ match self {
+ PlatformRequirementFilter::IgnoreNothing => false,
+ PlatformRequirementFilter::IgnoreAll => is_platform_package(req),
+ PlatformRequirementFilter::IgnoreList {
+ ignore_regex,
+ ignore_upper_bound_regex,
+ } => {
+ if !is_platform_package(req) {
+ return false;
+ }
+ ignore_regex.as_ref().is_some_and(|re| re.is_match(req))
+ || ignore_upper_bound_regex
+ .as_ref()
+ .is_some_and(|re| re.is_match(req))
+ }
+ }
+ }
+}
+
+/// Helper accepted by [`PlatformRequirementFilter::from_bool_or_list`]
+/// — mirrors PHP's `bool|string[]` union by replacing it with a tagged
+/// enum at the boundary. Commands typically have an
+/// `--ignore-platform-reqs` flag (the `Bool` arm) plus an optional
+/// `--ignore-platform-req <name>` list (the `List` arm), and convert at
+/// the call site.
+pub enum BoolOrList {
+ Bool(bool),
+ List(Vec<String>),
+}
+
+/// Compile a list of package names (with `*` glob support) into a
+/// case-insensitive regex matching any of them. Mirrors
+/// `BasePackage::packageNamesToRegexp` and its `packageNameToRegexp`
+/// helper: each name is `preg_quote`'d, then `\*` becomes `.*`.
+///
+/// Returns `None` when `names` is empty — Rust's `regex` crate refuses
+/// regexes that never match, so we model "match nothing" as the
+/// absence of a compiled regex and short-circuit at the call site.
+fn package_names_to_regexp(names: &[String]) -> anyhow::Result<Option<Regex>> {
+ if names.is_empty() {
+ return Ok(None);
+ }
+ let parts: Vec<String> = names
+ .iter()
+ .map(|n| regex::escape(n).replace("\\*", ".*"))
+ .collect();
+ let pattern = format!("(?i)^(?:{})$", parts.join("|"));
+ Ok(Some(Regex::new(&pattern)?))
+}
+
+/// Mirror of `Composer\Repository\PlatformRepository::isPlatformPackage`
+/// using the same canonical regex (`PLATFORM_PACKAGE_REGEX`).
+fn is_platform_package(name: &str) -> bool {
+ use std::sync::OnceLock;
+ static RE: OnceLock<Regex> = OnceLock::new();
+ let re = RE.get_or_init(|| {
+ Regex::new(
+ r"(?i)^(?:php(?:-64bit|-ipv6|-zts|-debug)?|hhvm|(?:ext|lib)-[a-z0-9](?:[_.-]?[a-z0-9]+)*|composer(?:-(?:plugin|runtime)-api)?)$",
+ )
+ .expect("PLATFORM_PACKAGE_REGEX compiles")
+ });
+ re.is_match(name)
+}
+
+/// Mirror of `Composer\Package\Locker`. The full PHP class is a thick
+/// wrapper around `composer.lock` (lock-data dump/load, freshness
+/// check, dev-package tracking, …) — Mozart's port currently just
+/// holds the lockfile path and exposes the slice the autoload
+/// generator needs (`isLocked()` / `getLockData()['content-hash']`).
+/// The richer accessors will land as more commands are ported.
+pub struct Locker {
+ lock_file_path: PathBuf,
+}
+
+impl Locker {
+ pub fn new(lock_file_path: PathBuf) -> Self {
+ Self { lock_file_path }
+ }
+
+ /// Path to the underlying `composer.lock`. Mirrors
+ /// `Locker::getJsonFile()->getPath()`.
+ pub fn lock_file_path(&self) -> &Path {
+ &self.lock_file_path
+ }
+
+ /// Mirror of `Locker::isLocked`. PHP additionally checks for the
+ /// presence of the `packages` array in a parsed lock; for now the
+ /// file-existence check is enough — every command that calls
+ /// `lock_data()` afterwards will surface a parse error if the
+ /// lockfile is corrupt.
+ pub fn is_locked(&self) -> bool {
+ self.lock_file_path.exists()
+ }
+
+ /// Mirror of `Locker::getLockData`. Returns `Ok(None)` when the
+ /// lockfile is absent (PHP would throw `LogicException`; Mozart
+ /// commands currently treat "no lock" as "no data" so the autoload
+ /// suffix path stays simple).
+ pub fn lock_data(&self) -> anyhow::Result<Option<LockData>> {
+ if !self.lock_file_path.exists() {
+ return Ok(None);
+ }
+ let content = std::fs::read_to_string(&self.lock_file_path)?;
+ let value: serde_json::Value = serde_json::from_str(&content)?;
+ let content_hash = value
+ .get("content-hash")
+ .and_then(|v| v.as_str())
+ .unwrap_or("")
+ .to_string();
+ Ok(Some(LockData { content_hash }))
+ }
+}
+
+/// Subset of `composer.lock` fields the autoload generator currently
+/// reads. Mirrors `Locker::getLockData()` return shape, narrowed to
+/// what's load-bearing today (the `content-hash` used as the autoloader
+/// suffix). More fields can be added when other ports start needing
+/// them.
+pub struct LockData {
+ pub content_hash: String,
}
impl Composer {
+ /// All-args constructor used by [`crate::factory::create_composer`].
+ /// Mirrors the PHP pattern of `new Composer()` followed by
+ /// `setConfig` / `setPackage` / `setRepositoryManager` /
+ /// `setInstallationManager` / `setAutoloadGenerator` / `setLocker`,
+ /// collapsed into a single immutable build.
+ pub fn new(
+ project_dir: PathBuf,
+ config: Config,
+ package: RawPackageData,
+ repository_manager: RepositoryManager,
+ installation_manager: InstallationManager,
+ autoload_generator: AutoloadGenerator,
+ locker: Locker,
+ ) -> Self {
+ Self {
+ project_dir,
+ config,
+ package,
+ repository_manager,
+ installation_manager,
+ autoload_generator,
+ locker,
+ }
+ }
+
/// Load Composer state for `project_dir`, requiring a composer.json.
- /// Mirrors `BaseCommand::requireComposer()`.
+ /// Mirrors `BaseCommand::requireComposer()`, which delegates to
+ /// `Factory::createComposer` after asserting the file exists.
pub fn require(project_dir: impl Into<PathBuf>) -> anyhow::Result<Self> {
let project_dir = project_dir.into();
let composer_json = project_dir.join("composer.json");
@@ -92,7 +513,7 @@ impl Composer {
project_dir.display()
);
}
- Self::load(project_dir, &composer_json)
+ create_composer(project_dir, &composer_json)
}
/// Load Composer state for `project_dir`, returning `None` if no
@@ -104,25 +525,7 @@ impl Composer {
if !composer_json.exists() {
return Ok(None);
}
- Self::load(project_dir, &composer_json).map(Some)
- }
-
- fn load(project_dir: PathBuf, composer_json: &Path) -> anyhow::Result<Self> {
- let content = std::fs::read_to_string(composer_json)?;
- let value: serde_json::Value = serde_json::from_str(&content)?;
- let mut config = create_config()?;
- if let Some(cfg_obj) = value.get("config").and_then(|v| v.as_object()) {
- let overrides: BTreeMap<String, serde_json::Value> = cfg_obj
- .iter()
- .map(|(k, v)| (k.clone(), v.clone()))
- .collect();
- config.merge(&overrides)?;
- }
- resolve_references(&mut config);
- Ok(Self {
- project_dir,
- config,
- })
+ create_composer(project_dir, &composer_json).map(Some)
}
pub fn project_dir(&self) -> &Path {
@@ -132,4 +535,39 @@ impl Composer {
pub fn config(&self) -> &Config {
&self.config
}
+
+ /// Root package loaded from the project's `composer.json`. Mirrors
+ /// `Composer::getPackage()`; ideally this would return a fully
+ /// resolved `RootPackageInterface` equivalent, but Mozart does not
+ /// yet have a `RootPackageLoader` port — for now callers see the
+ /// raw, pre-normalised JSON shape.
+ pub fn package(&self) -> &RawPackageData {
+ &self.package
+ }
+
+ /// Mirror of `Composer::getRepositoryManager()`.
+ pub fn repository_manager(&self) -> &RepositoryManager {
+ &self.repository_manager
+ }
+
+ /// Mirror of `Composer::getInstallationManager()`.
+ pub fn installation_manager(&self) -> &InstallationManager {
+ &self.installation_manager
+ }
+
+ /// Mirror of `Composer::getAutoloadGenerator()`.
+ ///
+ /// Returned by shared reference because Mozart's
+ /// [`AutoloadGenerator`] is stateless — per-call toggles live on
+ /// [`AutoloadDumpOptions`] passed into `dump()`, not on the
+ /// generator itself. Diverges from PHP's
+ /// `$composer->getAutoloadGenerator()->setDryRun(...)` chain.
+ pub fn autoload_generator(&self) -> &AutoloadGenerator {
+ &self.autoload_generator
+ }
+
+ /// Mirror of `Composer::getLocker()`.
+ pub fn locker(&self) -> &Locker {
+ &self.locker
+ }
}
diff --git a/crates/mozart-core/src/factory.rs b/crates/mozart-core/src/factory.rs
index faa98d8..92aa70e 100644
--- a/crates/mozart-core/src/factory.rs
+++ b/crates/mozart-core/src/factory.rs
@@ -1,14 +1,23 @@
-//! Factory helpers for constructing Composer configuration.
+//! Factory helpers for constructing Composer state.
//!
-//! Ports the static factory methods from `Composer\Factory` that deal with
-//! default and global configuration. Auth loading and htaccess creation are
-//! intentionally omitted as they are out of scope for the current port.
+//! Ports the static factory methods from `Composer\Factory`. Today we
+//! cover [`create_config`] (effective global [`Config`]) and
+//! [`create_composer`] (the project-level [`Composer`] root, built from
+//! `composer.json` plus the on-disk `vendor/composer/installed.json`).
+//!
+//! Auth loading, htaccess creation, and the plugin/event-dispatcher
+//! wiring are intentionally omitted as they are out of scope for the
+//! current port.
use std::collections::BTreeMap;
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
-use crate::composer::composer_home;
-use crate::config::Config;
+use crate::composer::{
+ AutoloadGenerator, Composer, InstallationManager, LocalPackage, LocalRepository, Locker,
+ RepositoryManager, composer_home,
+};
+use crate::config::{Config, resolve_references};
+use crate::package::read_from_file;
/// Rust port of `Factory::getCacheDir()`.
///
@@ -147,6 +156,135 @@ pub fn create_config() -> anyhow::Result<Config> {
Ok(config)
}
+/// Rust port of `Factory::createComposer()`.
+///
+/// Builds the project-level [`Composer`]:
+/// 1. Read `composer.json` from `composer_json` and load it into both
+/// the merged [`Config`] (overlaying [`create_config`]) and the
+/// untyped [`crate::package::RawPackageData`].
+/// 2. Resolve all `{$home}` / `{$vendor-dir}` placeholders via
+/// [`resolve_references`].
+/// 3. Resolve `vendor-dir` against `project_dir` if it is relative, so
+/// the installation manager hands back absolute paths
+/// (`Factory::createComposer` does the same via
+/// `Filesystem::isAbsolutePath`).
+/// 4. Wire up the [`InstallationManager`] and a [`RepositoryManager`]
+/// whose local repository is populated from
+/// `vendor/composer/installed.json` — the same role
+/// `Factory::addLocalRepository` plays in PHP.
+/// 5. Construct a fresh [`AutoloadGenerator`] with PHP defaults
+/// (`new AutoloadGenerator($eventDispatcher, $io)` in PHP, minus the
+/// not-yet-ported event dispatcher and IO dependencies).
+/// 6. Construct a [`Locker`] pointed at `composer.lock` next to the
+/// composer.json — same as `Factory::createComposer`'s
+/// `new Locker($io, new JsonFile($lockFile, …), $im, $contents)`,
+/// minus the IO/installation-manager/contents dependencies that
+/// only matter once we port `setLockData`.
+///
+/// The plugin manager, download manager, and event dispatcher that
+/// `Factory::createComposer` also wires up are not yet ported.
+pub fn create_composer(project_dir: PathBuf, composer_json: &Path) -> anyhow::Result<Composer> {
+ let content = std::fs::read_to_string(composer_json)?;
+ let value: serde_json::Value = serde_json::from_str(&content)?;
+ let mut config = create_config()?;
+ if let Some(cfg_obj) = value.get("config").and_then(|v| v.as_object()) {
+ let overrides: BTreeMap<String, serde_json::Value> = cfg_obj
+ .iter()
+ .map(|(k, v)| (k.clone(), v.clone()))
+ .collect();
+ config.merge(&overrides)?;
+ }
+ resolve_references(&mut config);
+
+ let package = read_from_file(composer_json)?;
+
+ // Mirrors `Factory::createComposer`'s `vendorDir` handling. The
+ // value out of `Config::get('vendor-dir')` already had `{$...}`
+ // placeholders substituted, but it may still be relative — resolve
+ // it against the project root so install paths are absolute.
+ let vendor_dir = if Path::new(&config.vendor_dir).is_absolute() {
+ PathBuf::from(&config.vendor_dir)
+ } else {
+ project_dir.join(&config.vendor_dir)
+ };
+
+ let local_packages = read_local_packages(&vendor_dir)?;
+ let repository_manager = RepositoryManager::new(LocalRepository::new(local_packages));
+ let installation_manager = InstallationManager::new(vendor_dir);
+ let autoload_generator = AutoloadGenerator::new();
+
+ // Mirrors `Factory::createComposer`'s lock-file path: the lockfile
+ // sits next to composer.json, with `.json` swapped for `.lock`.
+ let lock_file_path = composer_json
+ .parent()
+ .map(|p| p.to_path_buf())
+ .unwrap_or_else(|| project_dir.clone())
+ .join(
+ composer_json
+ .file_name()
+ .and_then(|n| n.to_str())
+ .map(|n| n.strip_suffix(".json").unwrap_or(n))
+ .map(|stem| format!("{stem}.lock"))
+ .unwrap_or_else(|| "composer.lock".to_string()),
+ );
+ let locker = Locker::new(lock_file_path);
+
+ Ok(Composer::new(
+ project_dir,
+ config,
+ package,
+ repository_manager,
+ installation_manager,
+ autoload_generator,
+ locker,
+ ))
+}
+
+/// Read `vendor/composer/installed.json` into the minimal shape the
+/// installation manager needs. Mirrors the relevant slice of
+/// `Composer\Repository\FilesystemRepository::initialize`: accept both
+/// the v2 object form (`{packages: [...]}`) and the legacy v1 array
+/// form. Returns an empty list when the file is missing — the same
+/// semantics as `FilesystemRepository::isFresh`.
+///
+/// We deliberately avoid pulling the full `InstalledPackages` reader from
+/// `mozart-registry` here to keep `mozart-core` at the bottom of the
+/// dependency graph; the parsing that's actually load-bearing for the
+/// install-path computation is just the package name + optional
+/// `target-dir`.
+fn read_local_packages(vendor_dir: &Path) -> anyhow::Result<Vec<LocalPackage>> {
+ let path = vendor_dir.join("composer/installed.json");
+ if !path.exists() {
+ return Ok(Vec::new());
+ }
+ let content = std::fs::read_to_string(&path)?;
+ let value: serde_json::Value = serde_json::from_str(&content)?;
+
+ let entries: &[serde_json::Value] = match &value {
+ serde_json::Value::Object(obj) => match obj.get("packages") {
+ Some(serde_json::Value::Array(arr)) => arr.as_slice(),
+ _ => return Ok(Vec::new()),
+ },
+ serde_json::Value::Array(arr) => arr.as_slice(),
+ _ => return Ok(Vec::new()),
+ };
+
+ let mut out = Vec::with_capacity(entries.len());
+ for entry in entries {
+ let pretty_name = entry
+ .get("name")
+ .and_then(|v| v.as_str())
+ .unwrap_or("")
+ .to_string();
+ let target_dir = entry
+ .get("target-dir")
+ .and_then(|v| v.as_str())
+ .map(|s| s.to_string());
+ out.push(LocalPackage::new(pretty_name, target_dir));
+ }
+ Ok(out)
+}
+
#[cfg(test)]
mod tests {
use super::*;
@@ -208,4 +346,151 @@ mod tests {
result.display()
);
}
+
+ mod create_composer {
+ use super::*;
+ use std::fs;
+ use tempfile::tempdir;
+
+ fn write(path: &Path, content: &str) {
+ fs::create_dir_all(path.parent().unwrap()).unwrap();
+ fs::write(path, content).unwrap();
+ }
+
+ #[test]
+ fn install_path_is_vendor_dir_plus_pretty_name() {
+ let dir = tempdir().unwrap();
+ write(&dir.path().join("composer.json"), r#"{"name": "acme/app"}"#);
+ write(
+ &dir.path().join("vendor/composer/installed.json"),
+ r#"{"packages": [{"name": "Vendor/Pkg", "version": "1.0.0"}]}"#,
+ );
+
+ let composer = Composer::require(dir.path()).unwrap();
+ let pkg = composer
+ .repository_manager()
+ .local_repository()
+ .canonical_packages()
+ .next()
+ .unwrap();
+
+ let install_path = composer
+ .installation_manager()
+ .get_install_path(pkg)
+ .unwrap();
+
+ // Mirrors `LibraryInstaller::getInstallPath`:
+ // `vendorDir + '/' + prettyName`. `pretty-name` is preserved
+ // case (Composer/Repository/FilesystemRepository keeps the original).
+ assert_eq!(install_path, dir.path().join("vendor").join("Vendor/Pkg"));
+ }
+
+ #[test]
+ fn install_path_appends_target_dir() {
+ let dir = tempdir().unwrap();
+ write(&dir.path().join("composer.json"), r#"{"name": "acme/app"}"#);
+ write(
+ &dir.path().join("vendor/composer/installed.json"),
+ r#"{"packages": [{"name": "vendor/pkg", "target-dir": "src/lib"}]}"#,
+ );
+
+ let composer = Composer::require(dir.path()).unwrap();
+ let pkg = composer
+ .repository_manager()
+ .local_repository()
+ .canonical_packages()
+ .next()
+ .unwrap();
+
+ let install_path = composer
+ .installation_manager()
+ .get_install_path(pkg)
+ .unwrap();
+
+ assert_eq!(install_path, dir.path().join("vendor/vendor/pkg/src/lib"));
+ }
+
+ #[test]
+ fn local_repository_is_empty_when_installed_json_missing() {
+ let dir = tempdir().unwrap();
+ write(&dir.path().join("composer.json"), r#"{"name": "acme/app"}"#);
+
+ let composer = Composer::require(dir.path()).unwrap();
+ let count = composer
+ .repository_manager()
+ .local_repository()
+ .canonical_packages()
+ .count();
+ assert_eq!(count, 0);
+ }
+
+ #[test]
+ fn local_repository_accepts_v1_array_form() {
+ // Older Composer 1.x / fixture format: bare array of packages.
+ // FilesystemRepository::initialize accepts this; our minimal
+ // reader must too.
+ let dir = tempdir().unwrap();
+ write(&dir.path().join("composer.json"), r#"{"name": "acme/app"}"#);
+ write(
+ &dir.path().join("vendor/composer/installed.json"),
+ r#"[{"name": "a/a"}, {"name": "b/b"}]"#,
+ );
+
+ let composer = Composer::require(dir.path()).unwrap();
+ let names: Vec<&str> = composer
+ .repository_manager()
+ .local_repository()
+ .canonical_packages()
+ .map(|p| p.pretty_name())
+ .collect();
+ assert_eq!(names, vec!["a/a", "b/b"]);
+ }
+
+ #[test]
+ fn package_returns_root_composer_json() {
+ let dir = tempdir().unwrap();
+ write(
+ &dir.path().join("composer.json"),
+ r#"{"name": "acme/app", "require": {"vendor/pkg": "^1.0"}}"#,
+ );
+
+ let composer = Composer::require(dir.path()).unwrap();
+ assert_eq!(composer.package().name, "acme/app");
+ assert_eq!(
+ composer
+ .package()
+ .require
+ .get("vendor/pkg")
+ .map(String::as_str),
+ Some("^1.0"),
+ );
+ }
+
+ #[test]
+ fn install_path_uses_configured_vendor_dir() {
+ let dir = tempdir().unwrap();
+ write(
+ &dir.path().join("composer.json"),
+ r#"{"name": "acme/app", "config": {"vendor-dir": "deps"}}"#,
+ );
+ write(
+ &dir.path().join("deps/composer/installed.json"),
+ r#"{"packages": [{"name": "vendor/pkg"}]}"#,
+ );
+
+ let composer = Composer::require(dir.path()).unwrap();
+ let pkg = composer
+ .repository_manager()
+ .local_repository()
+ .canonical_packages()
+ .next()
+ .unwrap();
+
+ let install_path = composer
+ .installation_manager()
+ .get_install_path(pkg)
+ .unwrap();
+ assert_eq!(install_path, dir.path().join("deps/vendor/pkg"));
+ }
+ }
}