Find Duplicate Code in Perl
SIZE=5120 perl -MCode::DRY \
-e 'Code::DRY::scan_directories(-$ENV{SIZE}, undef, undef, undef, @ARGV)' \
lib/
The command does impressive job on finding 'Cut-and-Paste' duplicates and does it fast even on huge codebases.
SIZE
variable defines a minimum number of bytes to be considered as duplicate.
The command requires Code::DRY module to be preinstalled.
CP_reporter script from the same distribution provides better reporting interface, but accepts just one dir or a glob.
The module by Heiko "hexcoder" Eißfeldt borrows some ideas from Ovid's implementation and benefits from use of various algorithms and XS performance gains.
Written by Yaroslav Korshak
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