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Cache compiled regexes

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Improves performance of `brew info --json=v2 --eval-all` by about 15–20%
This commit is contained in:
Ian Gregory 2022-10-27 01:28:08 -04:00
parent 560f5717ad
commit cdc707fa38
1 changed files with 15 additions and 7 deletions
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14
Library/Homebrew/cask/cask_loader.rb
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@ -19,12 +19,15 @@ module Cask
content = ref.to_str
# Cache compiled regex
@regex ||= begin
token = /(?:"[^"]*"|'[^']*')/
curly = /\(\s*#{token.source}\s*\)\s*\{.*\}/
do_end = /\s+#{token.source}\s+do(?:\s*;\s*|\s+).*end/
regex = /\A\s*cask(?:#{curly.source}|#{do_end.source})\s*\Z/m
/\A\s*cask(?:#{curly.source}|#{do_end.source})\s*\Z/m
end
content.match?(regex)
content.match?(@regex)
end
def initialize(content)
@ -93,8 +96,13 @@ module Cask
extend T::Sig
def self.can_load?(ref)
# Cache compiled regex
@uri_regex ||= begin
uri_regex = ::URI::DEFAULT_PARSER.make_regexp
return false unless ref.to_s.match?(Regexp.new("\\A#{uri_regex.source}\\Z", uri_regex.options))
Regexp.new("\\A#{uri_regex.source}\\Z", uri_regex.options)
end
return false unless ref.to_s.match?(@uri_regex)
uri = URI(ref)
return false unless uri