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Versions: 19
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Contents
# frozen_string_literal: true
module Overcommit::Hook::PreCommit
# Checks for line endings in files.
#
# WARNING: Works with Git 2.10.0 or newer.
class LineEndings < Base
def run
messages = []
offending_files.map do |file_name|
file = File.open(file_name)
begin
messages += check_file(file, file_name)
rescue ArgumentError => ex
# File is likely a binary file which this check should ignore, but
# print a warning just in case
messages << Overcommit::Hook::Message.new(
:warning,
file_name,
file.lineno,
"#{file_name}:#{file.lineno}:#{ex.message}"
)
end
end
messages
end
private
def check_file(file, file_name)
messages_for_file = []
file.each_line do |line|
# Remove configured line-ending
line.gsub!(/#{config['eol']}/, '')
# Detect any left over line-ending characters
next unless line.end_with?("\n", "\r")
messages_for_file << Overcommit::Hook::Message.new(
:error,
file_name,
file.lineno,
"#{file_name}:#{file.lineno}:#{line.inspect}"
)
end
messages_for_file
end
def offending_files
result = execute(%w[git ls-files --eol -z --], args: applicable_files)
raise 'Unable to access git tree' unless result.success?
result.stdout.split("\0").map do |file_info|
info, path = file_info.split("\t")
i = info.split.first
next if i == 'l/-text' # ignore binary files
next if i == "l/#{eol}"
path
end.compact
end
def eol
@eol ||= case config['eol']
when "\n"
'lf'
when "\r\n"
'crlf'
else
raise 'Invalid `eol` option specified: must be "\n" or "\r\n"'
end
end
end
end
Version data entries
19 entries across 19 versions & 2 rubygems