diff options
Diffstat (limited to 'lib/gitlab/string_placeholder_replacer.rb')
-rw-r--r-- | lib/gitlab/string_placeholder_replacer.rb | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/gitlab/string_placeholder_replacer.rb b/lib/gitlab/string_placeholder_replacer.rb new file mode 100644 index 00000000000..9a2219b7d77 --- /dev/null +++ b/lib/gitlab/string_placeholder_replacer.rb @@ -0,0 +1,27 @@ +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 |