[ruby-talk:444794] [ANN] flay 2.14.4 Released

flay version 2.14.4 has been released!

• home: <http://ruby.sadi.st/>
• code: <https://github.com/seattlerb/flay>
• rdoc: <http://docs.seattlerb.org/flay/>

Flay analyzes code for structural similarities. Differences in literal values, variable, class, method names, whitespace, programming style, braces vs do/end, etc are all ignored. Making this totally rad.

Features/Problems:

• Reports differences at any level of code.
• Adds a score multiplier to identical nodes.
• Differences in literal values, variable, class, and method names are ignored.
• Differences in whitespace, programming style, braces vs do/end, etc are ignored.
• Works across files.
• Add the flay-persistent plugin to work across large/many projects.
• Run --diff to see an N-way diff of the code.
• Provides conservative (default) and --liberal pruning options.
• Provides --fuzzy duplication detection.
• Language independent: Plugin system allows other languages to be flayed.
• Ships with .rb and .erb.
• javascript and others will be available separately.
• Includes FlayTask for Rakefiles.
• Uses path_expander, so you can use:
• dir_arg -- expand a directory automatically
• @file_of_args -- persist arguments in a file
• -path_to_subtract -- ignore intersecting subsets of files/directories
• Skips files matched via patterns in .flayignore (subset format of .gitignore).
• Totally rad.

Changes:

2.14.4 / 2026-04-14

• 2 bug fixes:

• Fix Sexp#[] to return empty sexp if indicies run off the end. (slbug)

• Loosened dependency on ruby2ruby to catch up and drop ruby_parser.

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