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History of Changes

2.1.0 / 2024-08-12

  • Minimum Ruby version has been bumped to 2.7. This is needed to use the upstream gems, many of which no longer support 2.6.

  • Updated all dependencies to their latest stable versions.

2.0.0 / 2022-06-21

  • A major release with significant modernization to the code base and removal of legacy cruft, thanks to jmortlock.

  • The long deprecated Tree::TreeNode#depth method has finally been removed. Use Tree::TreeNode#node_depth instead.

  • Support for CamelCase methods has been dropped.

  • The predicate methods beginning with is_ or has_ are now aliases to real methods without these prefixes. For example, Tree::TreeNode#is_root? is now aliased to Tree::TreeNode#root?. This is to comply with the Ruby standard. The original prefixed method names should be considered as deprecated and the corresponding non-prefixed method names should be used instead. it is possible that the old prefixed method names might be removed in the future.

  • RubyTree now supports MRI Ruby versions 2.6.x, 2.7.x, and 3.0.x.

  • Explicit support for rbx Ruby has been removed (might still work, but not tested.)

  • RubyTree now uses Github Workflows for its CI pipeline.

  • RubyTree now allows proper sub-classing of Tree::TreeNode. Thanks to jack12816 for this.

  • RubyTree now correctly handles creating detached copies of un-clonable objects such as :symbol, true|false, etc. Thanks to igneus for this.

1.0.2 / 2021-12-29

  • A minor maintenance version to address a minor but annoying warning for circular dependencies.

1.0.1 / 2021-12-29

  • Updated all dependencies (dev and runtime) to their latest stable releases. This is to primarily address potential CVE exposures from upstream libraries.

  • Updated the supported version of MRI Ruby to 2.7.x.

  • Minor code cleanup using the safe automated corrections using rubocop.

  • Note that this was never released to https://rubygems.org.

1.0.0 / 2017-12-21

  • Finally! Released version 1.0.0.

  • This is a maintenance release that updates the dependent gem versions and addresses a few security vulnerabilities for older upstream gem packages.

  • With this release, Rubytree now requires Ruby version 2.2.x or higher.

0.9.7 / 2015-12-31

  • Released 0.9.6. This is a minor bug-fix release.

  • This release allows the Tree::TreeNode#print_tree method to be used on non-root nodes. Thanks to Ojab.

  • The spaceship operator (<=>) now returns nil if the object being compared to is itself nil or not another Tree::TreeNode.

0.9.6 / 2015-05-30

  • Released 0.9.6, which is identical to 0.9.5, except for an update to the gem's release date.

0.9.5 / 2015-05-30

  • Released 0.9.5.

0.9.5pre7 / 2015-05-30

  • Added new methods for getting the path of a node as a string. These have been added as a new mixin Tree::Utils::TreePathHandler. Thanks to Marco.

0.9.5pre5 / 2015-01-01

  • Fixed bug-32 and enabled move semantics on the Tree::TreeNode#add method, so that if a child is added, which has an existing parent, then it will be removed from its old parent, prior to being added to the new location.

0.9.5pre4 / 2014-12-17

  • Added performance improvements to Tree::TreeNode#is_root? and Tree::Utils::TreeMetricsHandler#node_depth. Thanks to Aidan Steel.

0.9.5pre3 / 2014-12-16

  • Minor fix to correct the release date. This release is otherwise identical to 0.9.5pre2.

0.9.5pre2 / 2014-12-16

  • Added Tree::TreeNode#rename and Tree::TreeNode#rename_child methods by merging in code from pr-35. Thanks to Evan Sharp.

0.9.5pre / 2014-11-01

  • Fixed bug-13 with the patch provided by Jen Hamon.

  • Fixed a bug in Tree::TreeNode#print_tree with the patch provided by Evan Sharp.

  • Fixed bug-31, which was causing incorrect behavior in Tree::TreeNode#postordered_each and Tree::TreeNode#breadth_each methods when a block was not provided.

0.9.4 / 2014-07-04

0.9.3 / 2014-02-01

  • Fixed the issue with globally unique node names. See bug-24.

0.9.2 / 2014-01-03

  • Yanked R0.9.1 as the History.rdoc file was not updated.

  • Updated the gem description.

  • Changed the travis-ci build to include coverall support.

0.9.1 / 2014-01-03

  • Updated the gem description.

  • Incorporated code coverage using the coverall gem.

0.9.0 / 2014-01-02

This is a feature and bug-fix release.

The Features

  • Rubytree now supports postordered traversal via the Tree::TreeNode#postordered_each method. Thanks to Paul de Courcel for this.

  • The Binary tree now supports inorder traversal via the Tree::BinaryTreeNode#inordered_each method.

  • Ability to merge in another tree at a chosen node, or merge two trees to create a third tree. Thanks to Darren Oakley for this pr-2.

  • RubyTree now mixes in the Comparable module.

The Fixes

  • (Partial) fix for preventing cyclic graphs in the tree.

  • Refactored the Tree::TreeNode#each method to prevent stack errors while navigating deep trees (bug-12).

  • Check to ensure that the added node's name is unique to the destination tree (pr-9). Thanks to Youssef Rebahi-Gilbert for the idea and the initial code.

  • Fix for bug-23, where the tree traversal on a binary tree would fail if the left child was nil.

  • The following traversal methods now correctly return an Enumerator as the return value when no block is given, and return the receiver node if a block was provided. This is consistent with how the standard Ruby collections work.

    • Tree::TreeNode#each,
    • [Tree::TreeNode#preordered_each][preordered_each],
    • Tree::TreeNode#postordered_each and
    • Tree::TreeNode#breadth_each.

Other Changes

  • Structural changes in the code to refactor out the non-core functions into modules (mostly by extracting out non-core code as mixins).

  • Significant refactoring of the documentation. The Yard tags are now extensively used.

  • Basic support built-in for including example code in the gem. This will be fully expanded in the next release.

  • Various changes to the Bundler, travis-ci and other Rakefile changes.

0.8.3 / 2012-08-21

This is a primarily a bug-fix release, with some packaging changes.

  • Have removed the dependency on Hoe. The build is now based on vanilla gemspec.

  • Included support for gem-testers.

  • Included support for Bundler.

  • Implemented the Tree::Utils::JSONConverter#as_json method to support Rails' JSON encoding, by pulling in the changes from Eric Cline.

  • Partial fix for bug-5. This is to prevent infinite looping if an existing node is added again elsewhere in the tree.

  • Fixed the issue with using integers as node names, and its interaction with the Tree::TreeNode#[] access method as documented in bug-6.

  • Clarified the need to have unique node names in the documentation (bug-7).

  • Fixed Tree::TreeNode#siblings method to return an empty array for the root node as well (it returned nil earlier).

0.8.2 / 2011-12-15

  • Minor bug-fix release to address bug-1215 (Tree::TreeNode#to_s breaks if @content or @parent.name is not a string).

0.8.1 / 2010-10-02

  • This is the public release of R0.8.0, with additional bug-fixes. Note that R0.8.0 will not be released separately as a publicly available Rubygem. All changes as listed for R0.8.0 are available in this release.

  • The main change in R0.8.0/R0.8.1 is conversion of all CamelCase method names to snake_case. The old CamelCase method names will still work (to ensure backwards compatibility), but will also display a warning.

  • The Tree::TreeNode#add method now accepts an optional child insertion point.

  • The sub-tree from the current node can now be cloned in its entirety using the Tree::TreeNode#detached_subtree_copy method.

  • A major bug-fix for bug-28613 which impacted the Binarytree implementation.

  • Minor code re-factoring driven by the code-smell checks using reek.

  • Inclusion of the reek code-smell detection tool in the Rakefile.

0.8.0 / 2010-05-04

  • Updated the Tree::TreeNode#add method to allow the optional specification of an insertion position in the child array.

  • Added a new method Tree::TreeNode#detached_subtree_copy to allow cloning the entire tree (this method is also aliased as dup).

  • Converted all CamelCase method names to the canonical ruby_method_names (underscore separated). The CamelCase methods can still be invoked, but will throw a Deprecated Warning. The support for old CamelCase methods will go away some time in the future, so the user is advised to convert all current method invocations to the new names.

0.7.0 / 2010-05-03

  • Added new methods to report the degree-statistics of a node.

  • Added a convenience method alias Tree::TreeNode#level to nodeDepth.

  • Converted the exceptions thrown on invalid arguments to ArgumentError instead of RuntimeError.

  • Converted the documentation to Yard format.

  • Added new methods for converting to/from JSON format. Thanks to Dirk Breuer for this fork.

  • Added a separate API-CHANGES.md documentation file.

  • Added fixes for root related edge conditions to the:

    • Tree::TreeNode#is_only_child?,
    • Tree::TreeNode#next_sibling,
    • Tree::TreeNode#previous_sibling and
    • Tree::TreeNode#remove! methods.

  • Removed the ChangeLog file as this can now be generated from the git logs.

  • Other minor code cleanup.

0.6.2 / 2010-01-30

  • Updated the documentation.

0.6.1 / 2010-01-04

  • Changed the hard-dependency on the [structured_warnings][] gem to a soft-dependency - which lets RubyTree still work if this gem is not available. The rationale for this is that we should not require the user to install a separate library just for one edge-case function (in this case, to indicate a deprecated method). However, if the library is available on the user's system, then it will get used.

0.6.0 / 2010-01-03

  • Fixed bug-22535 where the Tree::TreeNode#depth method was actually returning height+1 (not the depth).

  • Marked the Tree::TreeNode#depth method as deprecated (and introduced the run-time dependency on the structured-warnings gem).

0.5.3 / 2009-12-31

  • Cleanup of the build system to exclusively use Hoe.
  • Modifications and reformatting to the documentation.
  • No user visible changes.

0.5.2 / 2007-12-21

  • Added more test cases and enabled ZenTest compatibility for the test case names.

0.5.1 / 2007-12-20

  • Minor code refactoring.

0.5.0 / 2007-12-18

  • Fixed the marshalling code to correctly handle non-string content.

0.4.3 / 2007-10-09

  • Changes to the build mechanism (now uses Hoe).

0.4.2 / 2007-10-01

  • Minor code refactoring. Changes in the Rakefile.