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2026-05-08fix(suggests): align with Composer's SuggestsCommand pipelinensfisis
Port `Composer\Installer\SuggestedPackagesReporter` to `mozart_core::installer` (modes, add_package, add_suggestions_from_package, output, output_minimalistic, escape_output) and slim `commands/suggests.rs` to mirror `SuggestsCommand::execute`. Defines `HasSuggests`, `InstalledRepoLite`, `RootInfo` as the minimal stand-ins for Composer's `PackageInterface` / `InstalledRepository` / `onlyDependentsOf`. Also fixes a latent bug where `provide`/`replace` virtuals were read from `extra_fields` (always empty after a serde round-trip into LockedPackage's typed fields) and moves the "additional suggestions ... --all" hint to fire after the rendered sections, matching Composer's order.
2026-05-08fix(status): align with Composer's StatusCommand pipelinensfisis
Replace the dist-hash tree-diff implementation with Composer's VCS-level status flow: three buckets (errors / unpushed_changes / vcs_version_changes) populated via ChangeReportInterface / DvcsDownloaderInterface / VcsCapableDownloaderInterface, and a bitfield exit code (1|2|4) instead of always 1. Supporting work: - mozart-semver: add normalize_branch (VersionParser::normalizeBranch). - mozart-vcs: extend VcsDownloader trait with unpushed_changes / vcs_reference; port GitDownloader::getUnpushedChanges (HEAD-ref discovery + git diff --name-status remote...branch + two-pass fetch); fix git status invocation to use --untracked-files=no (Composer parity); add hasMetadataRepository preconditions to git/hg/svn local_changes; port VersionGuesser (git/hg/svn dispatch — Fossil omitted, feature branch detection runs sequentially instead of via async promises). - mozart-core: extend LocalPackage with pretty_version, package_type, installation_source, source, dist, extra; add InstallationSource and PackageReference. factory.rs reads them from installed.json. - mozart-registry: new download_manager mirroring DownloadManager::getDownloaderForPackage. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08fix(search): align with Composer's RepositoryInterface::searchnsfisis
Replace the HTTP-only post-filtered implementation with a Repository::search trait dispatch that mirrors ComposerRepository::search semantics for all three modes (FULLTEXT/NAME/VENDOR). --only-name now does an OR-of-tokens regex match against the full Packagist list.json index instead of a substring match against a fulltext page, so e.g. \`mozart search --only-name mono log\` matches \`monolog/monolog\` like Composer does. Other parity fixes: regex::escape on non-fulltext queries, format check before mutex check, 4-space JSON indent, OSC 8 terminal hyperlink emission when a result has a url, <warning>\! Abandoned \!</warning> styling on abandoned rows, and the Mozart-only "No packages found" warning is dropped to match Composer's silent empty-result behavior. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08fix(browse): mirror Composer's HomeCommand semanticsnsfisis
Replace the hand-rolled composer.json -> composer.lock -> Packagist fallback with a BrowseRepos composite that dispatches via a uniform find_packages(name) over the root package, the local installed repository, and the Packagist remote -- matching HomeCommand's initializeRepos() + findPackages() loop. - Extend InstalledPackageEntry with homepage/support so the local repo carries the same fields HomeCommand reads off CompletePackageInterface; propagate them through locked_to_installed_entry. - Collapse three extract_url_from_* helpers into a single handle_package mirror. - Relax is_valid_url to a filter_var(FILTER_VALIDATE_URL) analog (drop the http/https scheme allowlist). - Route warnings and "No package specified" notices to stderr; match HomeCommand's exact wording. - Merge the macOS/Linux open_browser branches; add the literal "web" window-title argument on Windows.
2026-05-06fix(cache): mirror Composer no-cache and cache-files-maxsize handlingnsfisis
--no-cache redirects COMPOSER_CACHE_DIR to /dev/null (mirrors Application::doRun). cache_files_maxsize is now u64 with a "300MiB"-style string deserializer. Cache::new() takes readonly instead of enabled; is_usable() detects null devices.
2026-05-05chore: remove redundant commentsnsfisis
2026-05-05feat(cache): include cache-vcs-dir in clear-cache commandnsfisis
Composer's clear-cache deletes cache-vcs-dir alongside repo/files caches, and GCs it via gcVcsCache (TTL-based, top-level subdir deletion, no size cap). Mozart was silently leaving VCS mirrors on disk forever — every clear-cache run grew the cache monotonically. Add cache_vcs_dir to CacheConfig (default {cache-dir}/vcs, env override COMPOSER_CACHE_VCS_DIR), wire it into clear-cache, and add Cache::gc_vcs mirroring Composer's gcVcsCache semantics.
2026-05-04feat(http): honor config.cafile and config.capathnsfisis
Composer's config.cafile/config.capath were accepted by the config command but ignored by every HTTP request. Centralize reqwest client construction in mozart_core::http, pre-load the configured CA bundle at startup, and route every callsite (registry, vcs drivers, diagnose, self-update) through the shared builder so user-supplied roots are actually used during HTTPS verification.
2026-05-04test(resolver): scaffold PoolBuilder fixture suite from Composernsfisis
Port the 31 .test fixtures under composer/tests/Composer/Test/DependencyResolver/Fixtures/poolbuilder/ as #[ignore]'d cases in mozart-registry/tests/poolbuilder.rs. Each fixture is parsed eagerly so format-level regressions surface immediately, while the runner itself is unimplemented\!() — removing #[ignore] from a case will force the missing pool-build entry point into existence rather than silently mis-run. Generalize mozart-test-harness's split_sections to take a per-format valid-section list and add a poolbuilder parser alongside the installer one.
2026-05-04fix(lockfile): preserve default-branch flag through lock round-tripsnsfisis
ArrayDumper emits `default-branch: true` into the lock for any package that came from a default branch, and ArrayLoader reads it back to synthesize the `9999999-dev` alias inside Locker::getLockedRepository. Mozart was dropping the flag in two places: packagist_version_to_locked_package ignored pv.default_branch when building the lock entry, and locked_package_to_packagist_version hardcoded default_branch=false when re-hydrating a lock-pinned package's metadata for partial updates. The result was that a non-allow-listed default-branch dev package (e.g. f/f in update-changes-url) ended up in the new lock without the marker, so collect_stale_installed_aliases thought its `9999999-dev` alias had been retired and emitted a spurious MarkAliasUninstalled trace.
2026-05-04fix(resolver): expose locked branch-alias entries in the poolnsfisis
Composer's Locker::getLockedRepository runs each locked package through ArrayLoader::load, which materializes any extra.branch-alias as a separate AliasPackage in the locked repository. Mozart was only adding the base locked package to the pool, so a `dev-master` locked entry with branch alias `2.2.x-dev` was invisible to numeric root constraints like `~2.1` on a partial update — the resolver bailed with "no matching package found" even though Composer accepts the same lock. Surface each branch-alias as a sibling pool entry pointing at the base via is_alias_of.
2026-05-04fix(resolver): normalize bare branch atoms to dev-NAME in root aliasesnsfisis
Composer's VersionParser::normalize maps `master`/`trunk`/`default` (with or without `dev-` prefix) to `dev-NAME`, not `9999999-dev`. Mozart was emitting the four-segment 9999999 form for these atoms in normalize_root_alias_atom, so a root require like `dev-master as 1.1.0` recorded its target as `9999999.9999999.9999999.9999999-dev` and never matched the pool's `dev-master` entry — the alias was silently dropped and transitive `^1.1` requires couldn't see the materialized 1.1.0 alias.
2026-05-04fix(update): preserve locked refs and aliases on partial updatensfisis
Partial update of a non-allow-listed dev package now resolves and emits the locked-repo entry verbatim, mirroring Composer's `PoolBuilder`. Three coordinated changes: - resolver: `lock_filter_allows` accepts the locked package's branch- alias normalized versions, not just the base. Without this, root constraints like `~2.1` against a `dev-master` locked package whose branch alias is `2.1.x-dev` failed with "no matching package found". - lockfile: new `lock_pinned_names` field on `LockFileGenerationRequest` routes non-allow-listed packages through `previous_lock_lookup` before `inline_lookup`, so the lock's source/dist references survive even when the inline metadata has moved to a newer commit. - update: `apply_partial_update` skips alias entries — re-pinning their pretty `version` to the base would collapse the alias label and emit a self-referential entry in the new lock's `aliases[]` block. Unblocks partial_update_forces_dev_reference_from_lock_for_non_updated_packages. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04fix(resolver): rewrite self.version on materialized root aliasesnsfisis
Mirror Composer's `AliasPackage::replaceSelfVersionDependencies`: a base package's `replace` / `provide` / `conflict` link whose constraint matches the base's own version (the resolved form of `self.version`) is duplicated on the alias at the alias's version. A root require like `a/aliased: dev-next as 4.1.0-RC2` paired with `replace: { foo: self.version }` previously left the alias with a `dev-next` constraint, so a transitive `foo ^4.0` requirement saw no numeric provider and the solver bailed. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(resolver): extract aliases from complex root-require constraintsnsfisis
Mirror Composer's RootPackageLoader::extractAliases regex so root requires like `1.*||dev-feature-foo as 1.0.2||^2` and `dev-feature-foo, dev-feature-foo as 1.0.2` get every `<X> as <Y>` clause stripped in place and recorded as a separate root alias entry. The previous single-atom strip left the alias inline, where the parser then took the RIGHT side per atom and never matched the actual dev-branch package. Also fix split_and so a comma-separated AND group like `dev-foo, dev-bar` splits into two atoms. The space-only operator-glue heuristic was collapsing it into a single atom because neither half starts with an operator or digit. Splitting on commas first preserves the unambiguous separator while keeping `>= 1.0.0` glued within each comma-part. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(resolver): cap inline package loads by root require constraintnsfisis
Mirror Composer's PoolBuilder::markPackageNameForLoading: when the root requires a name with a version constraint, loads of that name (seed and transitive) are filtered down to candidates whose own version (or any emitted branch-alias version) satisfies the constraint. Without this, the actual package at a non-matching version slips into the pool alongside a provider satisfying the root require, masking what should be a conflict (provider-gets-picked-together-with-other-version-of- provided-conflict.test). Also restore the Composer v1 compat path in inline_package: when the JSON sets version_normalized to the legacy 9999999-dev sentinel, re-normalize from the human-readable version field so a root require for `dev-master` matches the loaded package. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03feat(registry): support type: path repositoriesnsfisis
Adds a `mozart-php-serialize` crate (a byte-compatible port of PHP's `serialize()`) and a `mozart-registry::path_repository` module that expands `type: path` entries into synthetic `type: package` repositories. Each synthesized package carries the same SHA-1 dist reference Composer computes (`sha1(\$json . serialize(\$options))`) so the lockfile and trace lines match Composer byte-for-byte. Two latent bugs surfaced once the path-repo flow exercised real resolutions: - `apply_partial_update` swapped path-repo packages back to their locked version, defeating Composer's "path repos always reload" rule (`PoolBuilder` treats them as canonical, not lock-bound). Mirror the path-repo skip already used when constructing `locked_packages`. - `normalize_root_alias_atom` returned the raw input string for stable numeric atoms (e.g. `1.1.1`), so the alias matcher's `input.version \!= alias.version_normalized` check — comparing against pool inputs that carry the 4-segment normalized form — silently never matched. Run the parsed Version through Display so both sides are in the same shape. `install/update::run` gain a `path_repo_base_override: Option<&Path>` parameter for the in-process test harness: Composer's PHPUnit `InstallerTest::setUp` does `chdir(__DIR__)` so relative path-repo URLs resolve against `composer/tests/Composer/Test/`, but the Rust harness writes `composer.json` into a per-test tempdir and can't chdir safely under parallel tests. Production callers pass `None` and resolve against `working_dir`. Greens 3 ignored installer fixtures: partial_update_loads_root_aliases_for_path_repos alias_in_lock alias_in_lock2
2026-05-03fix(update): pattern-match allow-list specifiers and reuse locked metadatansfisis
Three related parity gaps surfaced by the `update-allow-list-patterns` fixture: 1. `mozart-semver`'s wildcard parser turned `*.*` into `>=0 <1` (a single-major range) because stripping the trailing `.*` left `*` in the major slot, which `parse()` quietly read as `0`. Composer reduces such patterns to a plain `*` (unconstrained) — match that and short-circuit when the stripped base is `*`. 2. `expand_wildcards` passed any non-wildcard specifier straight through, so a typo like `notexact/Test` (lock has `notexact/testpackage`) entered the resolver as a real package name and failed lookup. Mirror Composer's regex-based `isUpdateAllowed`/`warnAboutNonMatchingUpdateAllowList`: every specifier — wildcard or not — is matched against locked names *and* current root-require names, with `*` expanded to `.*`, and unmatched specs are warned and dropped instead of forwarded. 3. The lockfile generator's metadata loop hit the empty test repo set when a partial update kept a non-allow-listed package at its locked version that the inline repo no longer advertised, and bailed with "Could not find version". Add a `previous_lock` fallback that synthesizes a `PackagistVersion` straight off the `LockedPackage` so the lock entry's own metadata stays authoritative for packages that aren't moving.
2026-05-03fix(resolver): honor config.audit.block-insecure security-advisory filternsfisis
Mozart silently ignored the `security-advisories` block on inline `type: package` repositories and the `config.audit.block-insecure` audit flag, so a `composer update` succeeded with packages a Composer run would have refused to load. Mirror Composer's `SecurityAdvisoryPoolFilter` for the slice that feeds the pool: - Plumb a `security-advisories` field through `RawRepository` and a `block_insecure` flag through `ResolveRequest`, lifted off `composer.json`'s `config.audit.block-insecure`. - Collect every advisory's `affectedVersions` constraint at resolve time. When `block_insecure` is set and an inline package's normalized version satisfies the constraint, drop it from the pool before solving — root requires with no unaffected candidate then fail with the standard "could not be resolved" error.
2026-05-03fix(resolver): strip inline #ref and gate alias trace on alias stabilitynsfisis
Two related parity gaps surfaced by the `alias-with-reference` fixture: 1. A root require like `dev-main#abcd as 1.0.0` left the SAT-side constraint as `dev-main#abcd`, which no candidate matched, so resolution failed before the alias could be materialized. Mirror Composer's `extractAliases` regex (which captures only the constraint up to `#`) and `RootPackageLoader::extractReferences` (which records the hash separately): drop the trailing `#hex` from the resolver-side constraint and from the alias's left-hand side. Lockfile generation already pulls the reference back out of the raw require map for the post-resolve override. 2. `MarkAliasInstalled`'s trace line gated the reference suffix on the *target* package's stability, so a stable alias like `1.0.0` pointing at a dev-branch target rendered as `1.0.0 abcd`. Mirror `AliasPackage::getFullPrettyVersion`: the alias decides on its own whether to append the suffix based on its own normalized version, so a stable alias skips the suffix even when the target is dev.
2026-05-03fix(resolver): reject partial update when locked version fails stabilitynsfisis
A partial update reuses every non-allow-listed locked package as a fixed pool entry, ignoring stability filters. So when a user tightens `minimum-stability` (or drops a `stability-flags` entry the lock used to ride on), Mozart silently kept the rejected version and produced a plan Composer would have failed on. Mirror Composer's `Pool::isUnacceptableFixedOrLockedPackage` path: walk the locked packages before pool construction, surface every entry whose version no longer passes `passes_stability_filter`, and bail with the same "fixed to <v> (lock file version) ... rejected by your minimum-stability" pointer Composer prints from `Problem::getPrettyString`.
2026-05-03fix(update): apply --minimal-changes via policy preferred versionsnsfisis
The previous implementation pinned every resolved package back to its locked version after the resolve, which discarded the new versions the solver had to pick when a root constraint moved off the lock (e.g. a require bumped from `1.*` to `2.*`). The lock effectively never moved, so transitive cascades from a forced root-level update were lost. Mirror Composer's `Installer::createPolicy(forUpdate=true, minimalUpdate=true)` instead: thread the lock's `name → normalized version` map through the policy as `preferred_versions`. The solver now picks the locked version as a tiebreaker when it still satisfies the active constraints, but moves freely when a constraint forces a different version. Drop the post-process hook entirely.
2026-05-03fix(resolver): expand root branch-alias and self.version replace linksnsfisis
Two related parity gaps surfaced by the `circular-dependency` fixture: 1. The root's `extra.branch-alias` entry was never materialized in the pool, and root-level `replace`/`provide`/`conflict` constraints written as `self.version` were forwarded verbatim. Mirror Composer's `RootAliasPackage`: resolve `self.version` against the root's declared version for the base entry, then add an extra alias entry (carrying the base links plus a duplicate link per `self.version` original retagged at the alias's version) when the root's version matches an `extra.branch-alias` key. 2. `Pool::matches_package` returned on the first link to a target name even when its constraint did not match the query, hiding any later link to the same target. With the alias above, that masked the second `replace` link tagged at the alias version. Keep iterating when target matches but constraint does not, so a later link can still satisfy.
2026-05-03fix(lockfile): carry abandoned flag through to LockedPackage extrasnsfisis
`packagist_version_to_locked_package` was forwarding only `extra` and `notification-url` into `extra_fields`, so an `abandoned: "<replacement>"` declared in the package metadata never reached the lock. The same-version update detector then saw the lock and installed.json agreeing on "not abandoned" and skipped the resync, leaving the deprecation state stale on disk. Emit the field when truthy (string or `true`), matching Composer's `ArrayDumper::dump`.
2026-05-03fix(update): mirror Composer's always-include-dev resolution pathnsfisis
Composer's `Installer::doUpdate` hardcodes `includeDevRequires=true` for the first solve, so a `--no-dev` update still considers require-dev during resolution and writes a complete lock file (the flag only gates what gets installed). Mozart was passing `include_dev: dev_mode`, dropping require-dev from both the resolver pool and the lock when `--no-dev` was set, which broke fixtures where a non-dev requirement was satisfied by a package pulled in transitively through require-dev (e.g. `provided/pkg` provided by a require-dev metapackage). Also extend `classify_dev_packages` to walk `provide`/`replace` edges so the production BFS reaches packages that satisfy a `require` virtually, matching what Composer's `extractDevPackages` second-Solver run achieves through a real solve.
2026-05-03fix(install): align partial-update operation order with Composernsfisis
Three coordinated changes to make `update --with-dependencies` produce the same operation trace Composer emits: - LockFileGenerationRequest gains a previous_lock field. When a resolved package matches an entry in the old lock at the same name + version_normalized, its relationship-shaped fields (require / require-dev / conflict / replace / provide / suggest) are carried over verbatim. Source/dist refs and version-shaped fields still refresh from upstream metadata so dev packages can still pick up new commits. Without this carry-over, partial updates regenerated lock entries from upstream COMPOSER repo definitions, which can declare different requires than the lock — and topological_sort then sees a graph Composer's transaction never built. - Transaction's topological_sort and get_root_packages now expand replace/provide targets when matching `require` links to result packages, mirroring Composer's getProvidersInResult. Previously a package was only treated as required when matched by its own name, so packages reached only via replace/provide were mis-classified as roots and the DFS stack visited deps in the wrong order. - compute_operations iterates installed.json in reverse when emitting removals, mirroring Composer's array_unshift onto operations. Two co-orphaned packages otherwise emit removals in the wrong order vs Composer's trace. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03feat(repository): support only/exclude/canonical repo filtersnsfisis
Composer's FilterRepository wraps a repository with three knobs: `only` / `exclude` to drop packages by name, and `canonical: false` to relax the repo's authoritative claim on its package names so lower-priority repos can still answer. Mozart was ignoring all three, so first-listed inline / composer-repo entries always shadowed later repos and `only` / `exclude` lists were silently no-ops. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(install): skip MarkAliasInstalled when alias was already presentnsfisis
Composer's `Transaction::calculateOperations` only emits a MarkAliasInstalledOperation when the alias isn't already in `presentAliasMap`. Mirror that here: walk installed.json for each package being installed/updated, recover its prior alias set (explicit `extra.branch-alias` entries plus the synthetic `9999999-dev` alias for `default-branch: true` dev packages), and suppress the trace line when the new lock's alias normalized version was already there. Avoids the spurious "Marking ... as installed" emitted on a same-alias dev ref bump.
2026-05-03feat(resolver): honour audit.block-abandoned confignsfisis
Read `config.audit.block-abandoned` from composer.json (defaults to false) and propagate it to the resolver. When set, the pool builder skips packages whose `abandoned` field is truthy (`true` or a non-empty replacement string), matching `SecurityAdvisoryPoolFilter`'s behavior in `Composer\DependencyResolver`. With no candidates left, a root require that only matches abandoned versions fails resolution with exit 2.
2026-05-03fix(install): honour branch-alias when checking lock requirementsnsfisis
Mirror Composer's `Locker::getLockedRepository` flow when validating that every root require is satisfied by the lock and when emitting trace operations: a `dev-*` package's `extra.branch-alias` entry surfaces an AliasPackage at the alias version, so requirement matching considers that version too and `MarkAliasInstalled` fires for the branch-alias when the lock has no matching `aliases[]` entry. Dedupe by `alias_normalized` so packages aliased through both sources don't get two trace lines.
2026-05-03fix(resolver): load inline type:package entries by name, not eagerlynsfisis
Mirror Composer's PackageRepository (extends ArrayRepository) which only emits packages whose own name matches a queried name. Eager-loading every inline package let the SAT resolver pick a replacer that nothing required by name, masking broken transitive dependencies. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(resolver): seed locked packages into pool and honour root-require barriernsfisis
Mirror Composer's PoolBuilder/Request semantics for partial updates: each non-allow-listed locked package becomes a non-fixed pool entry restricted to its locked version, so `replace`-providing peers cannot silently displace it. Path-repo packages are exempt — Composer always reloads them from disk. Threading `--with-dependencies` through `expand_with_direct_dependencies` now performs transitive expansion with a root-require barrier matching UPDATE_LISTED_WITH_TRANSITIVE_DEPS_NO_ROOT_REQUIRE, so root requires stay locked when reached via a transitive dep. Newly green: remove_does_nothing_if_removal_requires_update_of_dep, update_allow_list_removes_unused, github_issues_4795, partial_update_with_deps_warns_root. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(resolver): apply root "X as Y" aliases via pool second passnsfisis
Mirrors Composer's `RootPackageLoader::extractAliases` + `PoolBuilder::loadPackage` flow: strip the `as` clause from each root require so the SAT side sees only the LEFT-hand constraint, and after every package is loaded run a second pass that materializes an alias entry for any input matching `(name, version_normalized)`. Locked-only packages in a partial update are excluded via a new `ResolveRequest::locked_package_names` so they don't pick up the alias (`propagateUpdate=false` in Composer). Two adjacent fixes uncovered while making `install_aliased_alias` green: - `Version::cmp` treated unnamed wildcard branches (`1.0.x-dev`, `is_dev_branch=true && name=None`) as below every numeric version. They are semantically the same as the four-segment `*-dev` form Composer's `normalizeBranch` emits, so let only *named* branches take the shortcut. - `Constraint::Exact` / `NotEqual` used the derived `==`, which compared `is_dev_branch` field-by-field and missed the wildcard/numeric equivalence. Switch to `cmp` so both forms count as equal. - `Pool::matches_package` now falls back to parsing `pretty_version` when the `version` parse doesn't match the constraint, so a `dev-master` query lines up with a pool entry stored as the internal `9999999.x.x.x-dev` expansion. Net effect on installer fixtures: `install_aliased_alias` newly green, plus `aliased_priority`, `aliased_priority_conflicting`, and `install_dev_using_dist` come along for the ride. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(resolver): carry root composer.json conflicts onto the in-pool root entrynsfisis
The root pool entry now seeded from composer.json carried provides and replaces but no conflicts, so a root-level conflict like \`{"some/dep": ">=1.3"}\` was silently dropped. Composer keeps these on the RootPackage (which lives in the pool via RootPackageRepository), and the SAT generator turns them into rules that forbid any candidate matching the constraint — including a branch alias that would resolve to a matching version. Without that, Mozart cheerfully installs both the required dev branch and its conflicting alias. Plumb composer.json's \`conflict\` map through ResolveRequest as root_conflict and project it onto the root pool entry as PoolLink conflicts; all callers updated. Unblocks conflict_on_root_with_alias_prevents_update_if_not_required and conflict_with_alias_prevents_update installer fixtures. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(install): emit MarkAliasUninstalled and fix dev-branch upgrade directionnsfisis
Two pieces of Composer's update-trace machinery were missing: 1. VersionParser::isUpgrade in Composer\Package\Version (which overrides the upstream Semver one) substitutes dev-master / dev-trunk / dev-default with the 9999999-dev default-branch alias, then returns true whenever either side starts with `dev-`. Mozart's is_upgrade compared via the generic version order, so dev-master → dev-foo came out as Downgrading. Port the override. 2. Transaction::calculateOperations seeds removeAliasMap from the currently-installed AliasPackages and emits MarkAliasUninstalled for every entry not covered by the new lock. Mozart never emitted those, so updating away from a branch-aliased package produced no trace line for the alias retirement. Walk installed.json's `extra.branch-alias` map, compare against the new lock's aliases[] block, and emit a MarkAliasUninstalled PackageOperation (a new variant on the executor surface — no filesystem effects, only the trace recorder cares). Unblocks update_alias, update_alias_lock2, and update_no_dev_still_resolves_dev installer fixtures. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(resolver): seed root package into pool as fixed entrynsfisis
Composer's RootPackageRepository puts a clone of the root package into the pool as a fixed entry — its `require` / `require-dev` cleared, but its name, version, provides, and replaces preserved. That way a transitive `require` pointing back at the root resolves through the pool the same way any other reference would, and legal circular dependencies (root requires A, A requires root) work. Mozart had no such seed: the rule generator only knew about the root through the explicit root-require / root-provide / root-replace tables, so a transitive consumer requiring the root by name failed with no provider. Plumb root_version through ResolveRequest (RawPackageData gains a matching `Option<String>` field), build a fixed PoolPackageInput for the root with provides/replaces lifted from request.root_provide / root_replace, and skip the root by name when collecting the resolver's output so it doesn't leak into the lock file. Falls back to `1.0.0+no-version-set` (Composer's RootPackage::DEFAULT_PRETTY_VERSION) when the root composer.json omits `version`. Unblocks circular_dependency2, conflict_against_replaced_package_problem, and provider_conflicts installer fixtures. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(install): switch update trace to dist-ref mode when source refs matchnsfisis
Composer's UpdateOperation::format renders the from/to versions through DISPLAY_SOURCE_REF_IF_DEV first, but if both sides come out identical it re-renders in DISPLAY_SOURCE_REF (when source refs differ) or DISPLAY_DIST_REF (when only dist refs differ) so the trace doesn't show a useless `pkg (X => X)` line. Mozart skipped the switch and emitted the default form on both halves, so a same-version-different-dist-ref update showed up as `dev-master def000 => dev-master def000` instead of `dev-master def000 => dev-master`. Add format_update_pretty_versions to render the pair Composer's way and plumb the resolved to_full_pretty through PackageOperation::Update so the trace recorder uses it verbatim. Unblocks update_installed_reference and update_picks_up_change_of_vcs_type installer fixtures. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(install): treat dev-reference shifts as upgradesnsfisis
Composer's Transaction fires an UpdateOperation when an installed package's source/dist reference moved, even if the version string is unchanged — that is how a `dev-main#abcd` root require pinning a new commit propagates through `composer install`. Mozart was checking only (name, version) and short-circuiting to Skip, so the package stayed pinned to whatever reference installed.json carried. Compare references in compute_operations and route mismatches into Action::Update. The trace recorder needs the from-side display string to include the reference suffix (`dev-master abc123`) so the EXPECT output matches Composer's UpdateOperation::format; thread that through PackageOperation::Update as a separate from_full_pretty field while keeping from_version (sans suffix) for the upgrade-vs-downgrade direction check, which has to compare normalized versions like Composer's VersionParser::isUpgrade does. Unblocks update_reference, update_reference_picks_latest, and updating_dev_updates_url_and_reference installer fixtures. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03refactor: switch internal maps/sets from HashMap to IndexMapnsfisis
Adopt indexmap workspace-wide so iteration order is deterministic and follows insertion order. The non-deterministic order of std HashMap otherwise leaks into resolver decisions when multiple valid solutions exist (e.g. cyclic require pairs under prefer-lowest), making behavior flaky and divergent from Composer's PHP-array semantics. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03feat(resolver): apply config.platform overrides on top of detected platformnsfisis
Mirrors `Composer\Repository\PlatformRepository`'s `$overrides` handling: each override either replaces a detected platform package version or adds a virtual one (e.g. ext-dummy), and `false` disables the package. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(resolver): fail when a root require has no matching providersnsfisis
Mirror Composer's `Solver::checkForRootRequireProblems`: a root require that resolves to zero pool providers produces no SAT rule, so the solver previously succeeded with an empty plan instead of reporting the unresolvable requirement. `RuleSetGenerator::generate` now returns those misses alongside the rule set, and `resolve()` short-circuits into `ResolveError::NoSolution` so install/update exit with code 2 to match Composer. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(registry): respect priority order across inline package reposnsfisis
When a `type: package` repository declares a name already declared by a higher-priority `type: package` entry, drop it. Mirrors Composer's RepositorySet first-repo-wins semantics so duplicate names across inline repositories cannot promote a lower-priority version into the pool. Greens 4 installer fixtures: install_prefers_repos_over_package_versions, repositories_priorities2, repositories_priorities4, update_package_present_in_lower_repo_prio_but_not_main_due_to_min_stability. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03fix(resolver): substitute self.version in pool link constraintsnsfisis
Composer's ArrayLoader and AliasPackage rewrite "self.version" to the declaring package's own version when building Link objects, so a package's replace/provide/conflict/require constraints carry a concrete "= <version>" rather than the literal string. Mozart was passing "self.version" through verbatim, which then failed to parse in Pool::matches_package and caused replace_alias.test to fail to find a provider for c/c 1.* via a/a's branch alias. Push the substitution into make_pool_links, threading the source package's normalized version through the call sites in resolver.rs (packagist/inline/composer-repo) and vcs_bridge.rs. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02fix(resolver): honor root self-provide/replace as require fulfilmentnsfisis
Port Composer's RuleSetGenerator::createRequireRule self-fulfilling branch: when the root composer.json's `provide` or `replace` covers a name it also requires (with intersecting constraints), skip emitting an install-one-of rule for that root require. Composer relies on the root package being a fixed entry in the pool so whatProvides() includes it; Mozart does not yet add the root to the pool, so the same decision is made via explicit `root_provide` / `root_replace` tables threaded through ResolveRequest. Without this, an inline repo package whose name matches the root's provide was being force-installed. Fixes installer fixtures `provider_satisfies_its_own_requirement` and `replacer_satisfies_its_own_requirement`.
2026-05-02feat(resolver): support inline #ref pin and default-branch aliasnsfisis
Adds the missing pieces for installer fixtures that pin a dev package via `dev-foo#hex` or rely on Composer's `default-branch: true` synthetic `9999999-dev` alias. Mirrors Composer at four layers: 1. `mozart_semver::parse_single` strips `dev-...#hex` / `....x-dev#hex` suffixes from constraints (Composer's `parseConstraint` regex). 2. `PackagistVersion` carries `default_branch`. When set on a `dev-` package with no numeric prefix, `packagist_to_pool_inputs` emits the synthetic `9999999-dev` alias — but skips it when an explicit `extra.branch-alias` already covers the version (matches `ArrayLoader::getBranchAlias`). 3. `RuleSetGenerator::generate` picks up `addRulesForRootAliases`: any pool alias whose target was added gets its own alias↔target rules so the SAT solver pulls them in together. 4. `lockfile::generate_lock_file` extracts root `#hex` overrides from `require`/`require-dev` and rewrites source/dist references (and github/gitlab/bitbucket archive URLs) on the matched package, the `setSourceDistReferences` ladder Composer runs in `PoolBuilder`. Resolver also infers `Stability::Dev` from a `dev-foo` style single-atom constraint when no explicit `@flag` is given, mirroring the second loop of `RootPackageLoader::extractStabilityFlags` so the package isn't filtered out under default `stable` minimum-stability. Newly green: install_branch_alias_composer_repo, install_reference, conflict_with_alias_prevents_update_if_not_required, unbounded_conflict_matches_default_branch. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02feat(resolver): add branch-alias support across the resolution pipelinensfisis
Plumb Composer's `extra.branch-alias` mechanism end-to-end so a dev branch (e.g. `dev-foobar`) can be installed alongside its numeric alias (e.g. `3.2.x-dev`) and resolve constraints written against the alias target. Concretely: - `mozart-semver`: stop treating pure-numeric `-dev` as a wildcard branch — `3.2.9999999.9999999-dev` (the form `normalizeBranch` emits) now parses as a classical version with `is_dev_branch=false`, so constraints like `3.2.*` match it. - `mozart-registry/composer_repo`: load `type: composer` repositories from `file://` URLs (legacy embedded `packages.json`). - `mozart-registry/resolver`: emit pool entries in pairs for dev branches with `extra.branch-alias`, link them via `is_alias_of`, and apply `@dev`/`@beta` etc. stability suffix flags from root requires. - `mozart-sat-resolver`: alias rules (`PackageAlias` / `PackageInverseAlias`) so alias and target install together; alias packages skipped from same-name conflict indexing. - `mozart-sat-resolver/policy`: `DefaultPolicy` now honors `prefer_stable` via Composer's stability-tier comparison. - `mozart-registry/lockfile`: split resolved set into real packages vs. alias entries; populate the `aliases[]` block. - `mozart-registry/installer_executor`: new `MarkAliasInstalled` operation; `format_full_pretty_version` mirroring `BasePackage::getFullPrettyVersion` (appends source ref[0..7] for dev/git packages). - Test harness rewrites fixture-relative `file://` URLs to absolute paths. Newly green fixtures: `install_branch_alias_composer_repo`, `alias_solver_problems`, `alias_solver_problems2`, `conflict_with_all_dependencies_option_dont_recommend_to_use_it`, `unbounded_conflict_does_not_match_default_branch_with_branch_alias`, `unbounded_conflict_does_not_match_default_branch_with_numeric_branch`. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02fix(installer): match Composer's transaction order and uninstall labelnsfisis
Three coupled changes that bring `compute_operations` + the in-process trace recorder into byte-parity with Composer's `Transaction::__toString` output: - `TraceRecorderExecutor`: emit "Removing X (V)" instead of "Uninstalling X (V)" — Composer's `UninstallOperation::__toString` uses "Removing". - `install_from_lock`: run removals before installs/updates to mirror `Transaction::moveUninstallsToFront`. Both dry-run and real-execution branches now emit the same prefix order. - `topological_sort`: replace recursive DFS with the stack-based DFS that Composer uses in `Transaction::calculateOperations`. Roots are seeded reverse-alphabetically (matching `setResultPackageMaps`'s uasort with `strcmp(b, a)`), and `getProvidersInResult` is mirrored by treating a package's `provide`/`replace` keys as additional name targets when resolving a `require` link. To make the third change work end-to-end, `LockedPackage` gains typed `provide` and `replace` fields (Composer's lock preserves them; Mozart was silently dropping them). `packagist_version_to_locked_package` now copies them through. Unignores 13 installer fixtures (10 newly green from the fix, 3 that were already green-but-still-flagged): conflict_downgrade_nested, install_from_lock_removes_package, install_security_advisory_matching_dependency, load_replaced_package_if_replacer_dropped, partial_update_keeps_older_dep_* (×2), partial_update_security_advisory_matching_locked_dep, provider_packages_can_be_installed_together_with_provided_if_both_installable, remove_deletes_unused_deps, replace_priorities, update_allow_list_require_new_replace, update_allow_list_with_dependencies_require_new_replace, update_requiring_decision_reverts_and_learning_positive_literals. Installer scoreboard: 75/187 → 88/187. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02test(installer): switch fixtures to in-process harnessnsfisis
Replaces the spawn-based runner in tests/installer.rs with the in-process harness from Step E. Every fixture now goes through mozart::commands::{install,update}::run with an empty RepositorySet (Composer's `'packagist' => false` test config) and a TraceRecorderExecutor (Composer's InstallationManagerMock), and the EXPECT section is now asserted against the recorder's trace - load-bearing for behavior parity, not just exit-code. The original CI failure (suggest_replaced) is now legitimately tested: the empty RepositorySet makes b/b unreachable just like Composer's test config, the inline package repo's eager preload finds c/c which replaces b/b, and the topological install order in compute_operations produces the c/c -> a/a trace the fixture pins. Strict trace assertion surfaced 60 Mozart-vs-Composer divergences that the exit-code-only spawn runner had been silently ignoring. Each is marked `installer_fixture\!(name, ignore)` for now; the categories break down roughly as: - alias handling (alias_in_lock2, install_aliased_alias, update_alias*) - replace / provider trace shape (replace_priorities, provider_satisfies_its_own_requirement, replacer_*) - update direction strings (update_changes_url, update_reference, update_dev_*) - partial-update + lock interactions (partial_update_*) - allow-list with replace/dependency interactions (update_allow_list_with_dependencies_require_new*) These each become individual follow-up Mozart bugs rather than mass silent-pass. Also marks prefer_lowest_branches as ignore: it's a real flake driven by HashSet iteration order in the resolver, where two equivalent candidates can be picked in either order. That's a separate determinism bug worth its own fix. The proxy-hack env-vars in mozart-test-harness::runner are removed - no test currently spawns the binary, and the in-process harness expresses Packagist disablement directly via RepositorySet::empty rather than relying on TCP failure to suppress network calls. Headline numbers: 75 passed (in-process, exit-code + EXPECT trace) + 112 ignored, vs prior 136 passed (spawn, exit-code only) + 51 ignored. The drop in passing count reflects the stricter assertion bar, not new regressions. Also removes tests/installer_in_process.rs - its single proof-of- concept fixture (suggest_replaced) is now part of the unified installer.rs harness. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02feat(installer): add trace recorder and topo install ordernsfisis
Adds TraceRecorderExecutor (Composer's InstallationManagerMock analog), which records every install/update/uninstall as a string matching Composer's *Operation::__toString output (after strip_tags) - the load-bearing assertion target for in-process fixture tests. Two changes were needed to make the recorder useful: - InstallerExecutor::uninstall_package gains a version parameter, and install_from_lock now looks up both the uninstall and the Update-from-version from installed.json. Previously the Update path passed the new version as a placeholder; the recorder needs the real old version to emit `Upgrading pkg (old => new)`. - compute_operations now topologically sorts the lock contents (deps before dependents) before computing actions, mirroring Composer's Transaction::calculateOperations. Without this, packages would install in alphabetical order and the trace would diverge from Composer's expectation. Also adds crates/mozart/tests/installer_in_process.rs with the in-process harness scaffold: parses the same .test fixtures, builds a tempdir, calls commands::install::run / update::run with an empty RepositorySet (no Packagist) and a TraceRecorderExecutor, then asserts exit code + EXPECT trace. One fixture wired up: suggest_replaced - the original CI failure that motivated this whole DI refactor. It now passes on the in-process path because the empty RepositorySet makes b/b unreachable just like Composer's `'packagist' => false` test config, and the resolver finds c/c (which replaces b/b) via the inline package repo's eager preload. Step F will migrate every fixture currently in installer.rs to the new harness; remaining divergences (alias handling, output ordering, replace trace shape, etc.) will surface as individual follow-ups. All 136 existing spawn-based fixtures + 114 mozart-registry tests + 541 mozart lib tests still green; clippy clean. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02refactor(registry): plumb RepositorySet and executor through callersnsfisis
ResolveRequest and LockFileGenerationRequest now take Arc<RepositorySet> instead of a raw Cache. install_from_lock now accepts &mut dyn InstallerExecutor instead of constructing FilesystemExecutor internally. Both changes expose the DI injection points needed by the upcoming in-process test harness, where Packagist must be replaced with an empty RepositorySet (Composer's `'packagist' => false` test config) and filesystem install execution must be replaced with a tracing recorder (Composer's InstallationManagerMock). The eager VCS scan and inline-package preload still happen inside resolve(), so the RawRepository array is kept on ResolveRequest as raw_repositories - migrating those through RepositorySet remains a follow-up. RepositorySet gains with_packagist and empty constructors so production callers and future tests have a uniform construction shape. All 136 enabled installer fixtures + 114 mozart-registry tests + 541 mozart lib tests still green; clippy clean. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>