2020-08-19 17:12:32 +01:00

54 lines
1.6 KiB
Ruby

# frozen_string_literal: true
require "active_support/core_ext/object/blank"
# Used by the inreplace function (in `utils.rb`).
class StringInreplaceExtension
attr_accessor :errors, :inreplace_string
def initialize(str)
@inreplace_string = str
@errors = []
end
def self.extended(str)
str.errors = []
end
def sub!(before, after)
result = inreplace_string.sub!(before, after)
errors << "expected replacement of #{before.inspect} with #{after.inspect}" unless result
result
end
# Warn if nothing was replaced
def gsub!(before, after, audit_result = true) # rubocop:disable Style/OptionalBooleanParameter
result = inreplace_string.gsub!(before, after)
errors << "expected replacement of #{before.inspect} with #{after.inspect}" if audit_result && result.nil?
result
end
# Looks for Makefile style variable definitions and replaces the
# value with "new_value", or removes the definition entirely.
def change_make_var!(flag, new_value)
return if gsub!(/^#{Regexp.escape(flag)}[ \t]*[\\?+:!]?=[ \t]*((?:.*\\\n)*.*)$/, "#{flag}=#{new_value}", false)
errors << "expected to change #{flag.inspect} to #{new_value.inspect}"
end
# Removes variable assignments completely.
def remove_make_var!(flags)
Array(flags).each do |flag|
# Also remove trailing \n, if present.
unless gsub!(/^#{Regexp.escape(flag)}[ \t]*[\\?+:!]?=(?:.*\\\n)*.*$\n?/, "", false)
errors << "expected to remove #{flag.inspect}"
end
end
end
# Finds the specified variable
def get_make_var(flag)
inreplace_string[/^#{Regexp.escape(flag)}[ \t]*[\\?+:!]?=[ \t]*((?:.*\\\n)*.*)$/, 1]
end
end