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Molinillo Changelog

0.8.0 (2021-08-09)

Breaking
  • Support for Ruby 2.0, 2.1 and 2.2 has been dropped, the minimum supported Ruby version is now 2.3.
    David Rodríguez
Enhancements
  • Use Array#- in unwind logic, since it performs better than Array#&, so it speeds up resolution.
    Lukas Oberhuber

  • Allow specification provider to customize how dependencies are compared when grouping specifications with the same dependencies.
    David Rodríguez

Bug Fixes
  • None.

0.7.0 (2020-10-21)

Breaking
  • Support for Ruby 1.8.7 and 1.9.3 has been dropped, the minimum supported Ruby version is now 2.0.
    Samuel Giddins
Enhancements
  • Circular dependency errors include the full (shortest) path between the circularly-dependent vertices.
    Samuel Giddins
Bug Fixes
  • None.

0.6.6 (2018-08-07)

Enhancements
  • Improve performance of Vertex#path_to?.
    Samuel Giddins

  • Allow customization of string used to say that a version conflict has occurred for a particular name by passing in the :incompatible_version_message_for_conflict key when constructing a version conflict message with trees.
    Samuel Giddins

Bug Fixes
  • None.

0.6.5 (2018-03-22)

Enhancements
Bug Fixes
  • None.

0.6.4 (2017-10-29)

Enhancements
  • Reduce memory usage during resolution by making the Vertex#requirements array unique.
    Grey Baker Jan Krutisch
Bug Fixes
  • None.

0.6.3 (2017-09-06)

Enhancements
  • None.
Bug Fixes
  • Handle the case where an unwind occurs to a requirement that directly caused the current conflict but could also have been unwound to directly from previous conflicts. In this case, filtering must not remove any possibilities that could have avoided the previous conflicts (even if they would not avoid the current one).
    Grey Baker

0.6.2 (2017-08-25)

Enhancements
  • None.
Bug Fixes
  • Insist each PossibilitySet contains contiguous versions. Fixes a regression where an older dependency version with identical sub-dependencies to the latest version may be preferred over the second-latest version.
    Grey Baker

0.6.1 (2017-08-01)

Enhancements
  • None.
Bug Fixes
  • Allow the set of dependencies for a given possibility to change over time, fixing a regression in 0.6.0.
    Samuel Giddins

0.6.0 (2017-07-27)

Breaking
  • Objects returned by dependencies_for and passed to resolve must properly implement both == and eql?, such that they return true when they exhibit the same behavior in requirement_satisfied_by?.
Enhancements
  • Speed up dependency resolution by considering multiple possible versions of a dependency at once, grouped by sub-dependencies. Groups are then filtered as additional requirements are introduced. If a group's sub-dependencies cause conflicts the entire group can be discarded, which reduces the number of possibilities that have to be tested to find a resolution.
    Grey Baker Samuel Giddins #69

  • Check for locked requirements when generating a new state's possibilities array, and reduce possibilities set accordingly. Reduces scope for erroneous VersionConflict errors.
    Grey Baker #67

  • Add VersionConflict#message_with_trees for consumers who prefer a more verbose conflict message that includes full requirement trees for all conflicts.
    Samuel Giddins

Bug Fixes
  • Improve unwinding by considering previous conflicts for the same dependency when deciding which state to unwind to. Previously, prior conflicts were stored in a hash indexed by their name, with only the most recent conflict stored for each dependency. With this fix, Molinillo can resolve anything that's thrown at it. 🎉
    Grey Baker #73

  • Only raise CircularDependency errors if they prevent resolution.
    Ian Young Grey Baker #78

  • Consider additional (binding) requirements that caused a conflict when determining which state to unwind to. Previously, in some cases Molinillo would erroneously throw a VersionConflict error if multiple requirements combined to cause a conflict.
    Grey Baker #72

  • Consider previous conflicts when determining the state to unwind to. If a previous conflict, for a different dependency, is the reason we ended up with the current conflict, then unwinding to a state that would not have caused that conflict could prevent the current one, too.
    Grey Baker #72

0.5.7 (2017-03-03)

Enhancements
  • None.
Bug Fixes
  • Keep a stack of parents per requirement, so unwinding past a swap point that updated the parent of the requirement works.
    Samuel Giddins bundler#5425

0.5.6 (2017-02-08)

Enhancements
  • None.
Bug Fixes

0.5.5 (2017-01-07)

Enhancements
  • None.
Bug Fixes
  • Only remove requirements from the to-be-resolved list if there are no activated vertices depending upon them after swapping.
    Samuel Giddins bundler#5294

0.5.4 (2016-11-14)

Enhancements
  • None.
Bug Fixes

0.5.3 (2016-10-28)

Enhancements
  • None.
Bug Fixes
  • Fixed a regression in v0.5.2 that could cause resolution to fail after swapping, because stale dependencies would still be in the requirements list.
    Samuel Giddins #48

  • Rename Action.name to Action.action_name to avoid overriding Module.name.
    Samuel Giddins #50

0.5.2 (2016-10-24)

Enhancements
  • None.
Bug Fixes
  • Fixed a bug where Resolution#parent_of would return the incorrect parent for a dependency after swapping had occurred, resulting in resolution failing.
    Samuel Giddins bundler#5059

0.5.1 (2016-09-12)

Enhancements
  • None.
Bug Fixes
  • Fixed a bug where Resolution#parent_of would return the incorrect parent for a dependency, resulting in resolution failing.
    Samuel Giddins bundler#4961

0.5.0 (2016-06-14)

Enhancements
  • Add an operation log to DependencyGraph to eliminate the need for graph copies during dependency resolution, resulting in a 3-100x speedup and reduction in allocations.
    Samuel Giddins bundler#4376

  • Remove all metaprogramming to reduce array allocation overhead and improve discoverability.
    Samuel Giddins

Bug Fixes
  • None.

0.4.5 (2016-04-30)

Enhancements
  • For performance, don't needlessly dup objects in Resolution#push_state_for_requirements.
    Joe Rafaniello
Bug Fixes

0.4.4 (2016-02-28)

Bug Fixes
  • Fix mutating a frozen string in NoSuchDependencyError#message.
    Samuel Giddins

0.4.3 (2016-02-18)

Enhancements
  • Add frozen string literal comments to all ruby files.
    Samuel Giddins
Bug Fixes

0.4.2 (2016-01-30)

Bug Fixes
  • Detaching a vertex correctly removes it from the list of successors of its predecessors.
    Samuel Giddins

  • Vertices orphaned after swapping dependencies are properly cleaned up from the graph of activated specs.
    Samuel Giddins bundler/bundler#4198

0.4.1 (2015-12-30)

Enhancements

0.4.0 (2015-07-27)

API Breaking Changes
  • The DependencyGraph no longer treats root vertices specially, nor does it maintain a direct reference to edges. Additionally, Vertex no longer has a reference to its parent graph.
Enhancements
  • Resolution has been sped up by 25x in some pathological cases, and in general recursive operations on a DependencyGraph or Vertex are now O(n).
    Samuel Giddins Bundler#3803

  • Re-sorting of dependencies is skipped when the unresolved dependency list has not changed, speeding up resolution of fully locked graphs.
    Samuel Giddins

0.3.1 (2015-07-24)

Enhancements
  • Add Conflict#activated_by_name to allow even richer version conflict messages.
    Samuel Giddins
Bug Fixes

0.3.0 (2015-06-29)

Enhancements
  • Add the ability to optionally skip dependencies that have no possibilities.
    Samuel Giddins

0.2.3 (2015-03-28)

Bug Fixes

0.2.2 (2015-03-27)

Bug Fixes

0.2.1 (2015-02-21)

  • Allow resolving some pathological cases where the backjumping algorithm would skip over a valid possibility.
    Samuel Giddins

0.2.0 (2014-12-25)

  • Institute stricter forward checking by backjumping to the source of a conflict, even if that source comes from the existing spec. This further improves performance in highly conflicting situations when sorting heuristics prove misleading.
    Samuel Giddins Smit Shah

  • Add support for topologically sorting a dependency graph's vertices.
    Samuel Giddins

0.1.2 (2014-11-19)

Enhancements
  • Improve performance in highly conflicting situations by backtracking more than one state at a time.
    Samuel Giddins
Bug Fixes

0.1.1 (2014-11-06)

  • Ensure that an unwanted exception is not raised when an error occurs before the initial state has been pushed upon the stack.
    Samuel Giddins

0.1.0 (2014-10-26)