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Ruby style guide git pre-commit hook using Rubocop as the style guide checker. Only runs on staged ruby files that have been added and/or modified.
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#!/usr/bin/env ruby | |
require 'english' | |
require 'rubocop' | |
ADDED_OR_MODIFIED = /A|AM|^M/.freeze | |
changed_files = `git status --porcelain`.split(/\n/). | |
select { |file_name_with_status| | |
file_name_with_status =~ ADDED_OR_MODIFIED | |
}. | |
map { |file_name_with_status| | |
file_name_with_status.split(' ')[1] | |
}. | |
select { |file_name| | |
File.extname(file_name) == '.rb' | |
}.join(' ') | |
system("rubocop #{changed_files}") unless changed_files.empty? | |
exit $CHILD_STATUS.to_s[-1].to_i |
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