mirror of
https://github.com/Homebrew/brew.git
synced 2025-07-14 16:09:03 +08:00
76 lines
2.8 KiB
Ruby
76 lines
2.8 KiB
Ruby
# typed: false
|
|
# frozen_string_literal: true
|
|
|
|
module Homebrew
|
|
module Livecheck
|
|
module Strategy
|
|
# The {Hackage} strategy identifies versions of software at
|
|
# hackage.haskell.org by checking directory listing pages.
|
|
#
|
|
# Hackage URLs take one of the following formats:
|
|
#
|
|
# * `https://hackage.haskell.org/package/example-1.2.3/example-1.2.3.tar.gz`
|
|
# * `https://downloads.haskell.org/~ghc/8.10.1/ghc-8.10.1-src.tar.xz`
|
|
#
|
|
# The default regex checks for the latest version in an `h3` heading element
|
|
# with a format like `<h3>example-1.2.3/</h3>`.
|
|
#
|
|
# @api public
|
|
class Hackage
|
|
extend T::Sig
|
|
|
|
# A `Regexp` used in determining if the strategy applies to the URL and
|
|
# also as part of extracting the package name from the URL basename.
|
|
PACKAGE_NAME_REGEX = /(?<package_name>.+?)-\d+/i.freeze
|
|
|
|
# A `Regexp` used to extract the package name from the URL basename.
|
|
FILENAME_REGEX = /^#{PACKAGE_NAME_REGEX.source.strip}/i.freeze
|
|
|
|
# A `Regexp` used in determining if the strategy applies to the URL.
|
|
URL_MATCH_REGEX = %r{
|
|
^https?://(?:downloads|hackage)\.haskell\.org
|
|
(?:/[^/]+)+ # Path before the filename
|
|
#{PACKAGE_NAME_REGEX.source.strip}
|
|
}ix.freeze
|
|
|
|
# Whether the strategy can be applied to the provided URL.
|
|
#
|
|
# @param url [String] the URL to match against
|
|
# @return [Boolean]
|
|
sig { params(url: String).returns(T::Boolean) }
|
|
def self.match?(url)
|
|
URL_MATCH_REGEX.match?(url)
|
|
end
|
|
|
|
# Generates a URL and regex (if one isn't provided) and passes them
|
|
# to {PageMatch.find_versions} to identify versions in the content.
|
|
#
|
|
# @param url [String] the URL of the content to check
|
|
# @param regex [Regexp] a regex used for matching versions in content
|
|
# @return [Hash]
|
|
sig {
|
|
params(
|
|
url: String,
|
|
regex: T.nilable(Regexp),
|
|
cask: T.nilable(Cask::Cask),
|
|
block: T.nilable(
|
|
T.proc.params(arg0: String, arg1: Regexp).returns(T.any(String, T::Array[String], NilClass)),
|
|
),
|
|
).returns(T::Hash[Symbol, T.untyped])
|
|
}
|
|
def self.find_versions(url, regex, cask: nil, &block)
|
|
match = File.basename(url).match(FILENAME_REGEX)
|
|
|
|
# A page containing a directory listing of the latest source tarball
|
|
page_url = "https://hackage.haskell.org/package/#{match[:package_name]}/src/"
|
|
|
|
# Example regex: `%r{<h3>example-(.*?)/?</h3>}i`
|
|
regex ||= %r{<h3>#{Regexp.escape(match[:package_name])}-(.*?)/?</h3>}i
|
|
|
|
PageMatch.find_versions(page_url, regex, cask: cask, &block)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|