debian-mirror-gitlab/lib/gitlab/string_placeholder_replacer.rb

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2018-03-27 19:54:05 +05:30
module Gitlab
class StringPlaceholderReplacer
# This method accepts the following paras
# - string: the string to be analyzed
# - placeholder_regex: i.e. /%{project_path|project_id|default_branch|commit_sha}/
# - block: this block will be called with each placeholder found in the string using
# the placeholder regex. If the result of the block is nil, the original
# placeholder will be returned.
def self.replace_string_placeholders(string, placeholder_regex = nil, &block)
return string if string.blank? || placeholder_regex.blank? || !block_given?
replace_placeholders(string, placeholder_regex, &block)
end
class << self
private
# If the result of the block is nil, then the placeholder is returned
def replace_placeholders(string, placeholder_regex, &block)
string.gsub(/%{(#{placeholder_regex})}/) do |arg|
yield($~[1]) || arg
end
end
end
end
end