[Bug 1244764] Review Request: rubygem-diffy - Convenient diffing in ruby

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1244764



--- Comment #6 from Ilya Gradina <ilya.gradina at gmail.com> ---
Spec URL: http://repo.clanwars.org/gitlab/rubygem-diffy.spec
SRPM URL: http://repo.clanwars.org/gitlab/rubygem-diffy-3.0.7-4.fc24.src.rpm

rubygem-diffy uses system's "diff" or "ldiff" (from %{_bindir}, tbh). "diff" is
coming from package called "diffutils" and it present in minimal system
(because if I'm trying to remove diffutils I'm getting errors about removing
systemd and dnf). This means that Requires: /usr/bin/diff is not needed. About
"ldiff".. It comes from "rubygem-diff-lcs". According to sources[0], it tries
to find "diff" first and if it's not found - tries to use "ldiff", so if we
will add Requires: /usr/bin/ldiff it will be not used at all, so it's
unnecessary.


[0]https://github.com/samg/diffy/blob/master/lib/diffy/diff.rb#L151-L153

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