88 lines
3.1 KiB
Ruby
88 lines
3.1 KiB
Ruby
# typed: strict
|
|
# frozen_string_literal: true
|
|
|
|
module Homebrew
|
|
module Livecheck
|
|
module Strategy
|
|
# The {Launchpad} strategy identifies versions of software at
|
|
# launchpad.net by checking the main page for a project.
|
|
#
|
|
# Launchpad URLs take a variety of formats but all the current formats
|
|
# contain the project name as the first part of the URL path:
|
|
#
|
|
# * `https://launchpad.net/example/1.2/1.2.3/+download/example-1.2.3.tar.gz`
|
|
# * `https://launchpad.net/example/trunk/1.2.3/+download/example-1.2.3.tar.gz`
|
|
# * `https://code.launchpad.net/example/1.2/1.2.3/+download/example-1.2.3.tar.gz`
|
|
#
|
|
# The default regex identifies the latest version within an HTML element
|
|
# found on the main page for a project:
|
|
#
|
|
# <pre><div class="version">
|
|
# Latest version is 1.2.3
|
|
# </div></pre>
|
|
#
|
|
# @api public
|
|
class Launchpad
|
|
# The `Regexp` used to determine if the strategy applies to the URL.
|
|
URL_MATCH_REGEX = %r{
|
|
^https?://(?:[^/]+?\.)*launchpad\.net
|
|
/(?<project_name>[^/]+) # The Launchpad project name
|
|
}ix
|
|
|
|
# The default regex used to identify the latest version when a regex
|
|
# isn't provided.
|
|
DEFAULT_REGEX = %r{class="[^"]*version[^"]*"[^>]*>\s*Latest version is (.+)\s*</}
|
|
|
|
# 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
|
|
|
|
# Extracts information from a provided URL and uses it to generate
|
|
# various input values used by the strategy to check for new versions.
|
|
# Some of these values act as defaults and can be overridden in a
|
|
# `livecheck` block.
|
|
#
|
|
# @param url [String] the URL used to generate values
|
|
# @return [Hash]
|
|
sig { params(url: String).returns(T::Hash[Symbol, T.untyped]) }
|
|
def self.generate_input_values(url)
|
|
values = {}
|
|
|
|
match = url.match(URL_MATCH_REGEX)
|
|
return values if match.blank?
|
|
|
|
# The main page for the project on Launchpad
|
|
values[:url] = "https://launchpad.net/#{match[:project_name]}/"
|
|
|
|
values
|
|
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: Regexp,
|
|
unused: T.untyped,
|
|
block: T.nilable(Proc),
|
|
).returns(T::Hash[Symbol, T.untyped])
|
|
}
|
|
def self.find_versions(url:, regex: DEFAULT_REGEX, **unused, &block)
|
|
generated = generate_input_values(url)
|
|
|
|
PageMatch.find_versions(url: generated[:url], regex:, **unused, &block)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|