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conflicts
`Pool::what_provides` previously accepted any provide/replace candidate
because `constraints_intersect` returned true unconditionally; the
same-name conflict pass also looked only at canonical names, so a
package replacing another at v1.0.0 was treated as a valid provider for
a v2.0.0 require and could coexist with the replaced package. Implement
interval-based `VersionConstraint::intersects` and index packages by
their `replace` targets (matching Composer's `getNames(false)`) when
generating same-name conflict rules.
Greens 3 installer fixtures: conflict_against_replaced_by_dep_package_problem,
provider_conflicts3, replaced_packages_should_not_be_installed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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The pool builder and rule-set generator only consulted an exact-match
HashSet, so `--ignore-platform-reqs` (no value) and `--ignore-platform-req=ext-foo-*`
fell through to the SAT layer and produced "no matching package found"
for transitive platform deps. Track the bool flag separately and run
each platform name through `mozart_core::matches_wildcard` against the
configured patterns.
Unblocks four installer fixtures:
install-{ignore-platform-package-requirement-wildcard,ignore-platform-package-requirements}
update-{ignore-platform-package-requirement-wildcard,ignore-platform-package-requirements}.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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The watch graph's propagateLiteral used a cloned chain for iteration
while checking the live chain for bounds. After move_watch removed a
node, the stale clone kept re-reading the same node index, causing an
infinite loop on large dependency sets (e.g. laravel/laravel).
Now re-fetch the live chain each iteration, matching Composer's
SplDoublyLinkedList semantics where remove() advances the iterator.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Virtual/meta packages (e.g. "psr/http-client-implementation") don't
exist on Packagist and caused a fatal error during transitive dependency
exploration. These packages are resolved via provides/replaces from
other packages already in the pool, so 404 errors are now skipped.
Also fix PoolBuilder::next_pending() repeatedly returning the same
virtual package name by tracking explored names in a HashSet, since
virtual packages are never added to inputs and the old check
(inputs.any(name)) never matched them.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Use previously stored but unused fields: show installed_version in
advisory tables/plain/JSON output, and package version in abandoned
package output. Remove unused unlockable_ids field from LockTransaction.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Add mozart-sat-resolver crate implementing a CDCL SAT-based dependency
resolver ported from Composer's DependencyResolver. This replaces the
pubgrub library to ensure identical resolution behavior with Composer.
The new crate includes: pool (package storage with integer IDs),
rule/rule_set/rule_set_generator (constraint encoding), decisions
(assignment tracking), rule_watch_graph (2-watched literal BCP),
solver (CDCL loop with conflict analysis and clause learning),
policy (version preference), problem (Composer-style error messages),
and transaction (install/update/uninstall operation computation).
The registry resolver is rewritten to use PoolBuilder → RuleSetGenerator
→ Solver pipeline instead of pubgrub's DependencyProvider trait.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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