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106 lines
4.2 KiB
Ruby
106 lines
4.2 KiB
Ruby
# typed: true
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# frozen_string_literal: true
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module Homebrew
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module Livecheck
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module Strategy
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# The {Apache} strategy identifies versions of software at apache.org
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# by checking directory listing pages.
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#
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# Most Apache URLs start with `https://www.apache.org/dyn/` and include
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# a `filename` or `path` query string parameter where the value is a
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# path to a file. The path takes one of the following formats:
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#
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# * `example/1.2.3/example-1.2.3.tar.gz`
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# * `example/example-1.2.3/example-1.2.3.tar.gz`
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# * `example/example-1.2.3-bin.tar.gz`
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#
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# This strategy also handles a few common mirror/backup URLs where the
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# path is provided outside of a query string parameter (e.g.
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# `https://archive.apache.org/dist/example/1.2.3/example-1.2.3.tar.gz`).
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#
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# When the path contains a version directory (e.g. `/1.2.3/`,
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# `/example-1.2.3/`, etc.), the default regex matches numeric versions
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# in directory names. Otherwise, the default regex matches numeric
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# versions in filenames.
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#
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# @api public
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class Apache
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# The `Regexp` used to determine if the strategy applies to the URL.
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URL_MATCH_REGEX = %r{
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^https?://
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(?:www\.apache\.org/dyn/.+(?:path|filename)=/?|
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archive\.apache\.org/dist/|
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dlcdn\.apache\.org/|
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downloads\.apache\.org/)
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(?<path>.+?)/ # Path to directory of files or version directories
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(?<prefix>[^/]*?) # Any text in filename or directory before version
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v?\d+(?:\.\d+)+ # The numeric version
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(?<suffix>/|[^/]*) # Any text in filename or directory after version
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}ix
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# Whether the strategy can be applied to the provided URL.
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#
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# @param url [String] the URL to match against
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# @return [Boolean]
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sig { params(url: String).returns(T::Boolean) }
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def self.match?(url)
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URL_MATCH_REGEX.match?(url)
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end
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# Extracts information from a provided URL and uses it to generate
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# various input values used by the strategy to check for new versions.
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# Some of these values act as defaults and can be overridden in a
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# `livecheck` block.
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#
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# @param url [String] the URL used to generate values
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# @return [Hash]
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sig { params(url: String).returns(T::Hash[Symbol, T.untyped]) }
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def self.generate_input_values(url)
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values = {}
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match = url.match(URL_MATCH_REGEX)
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return values if match.blank?
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# Example URL: `https://archive.apache.org/dist/example/`
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values[:url] = "https://archive.apache.org/dist/#{match[:path]}/"
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regex_prefix = Regexp.escape(match[:prefix] || "").gsub("\\-", "-")
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# Use `\.t` instead of specific tarball extensions (e.g. .tar.gz)
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suffix = match[:suffix]&.sub(Strategy::TARBALL_EXTENSION_REGEX, ".t")
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regex_suffix = Regexp.escape(suffix || "").gsub("\\-", "-")
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# Example directory regex: `%r{href=["']?v?(\d+(?:\.\d+)+)/}i`
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# Example file regexes:
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# * `/href=["']?example-v?(\d+(?:\.\d+)+)\.t/i`
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# * `/href=["']?example-v?(\d+(?:\.\d+)+)-bin\.zip/i`
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values[:regex] = /href=["']?#{regex_prefix}v?(\d+(?:\.\d+)+)#{regex_suffix}/i
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values
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end
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# Generates a URL and regex (if one isn't provided) and passes them
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# to {PageMatch.find_versions} to identify versions in the content.
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#
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# @param url [String] the URL of the content to check
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# @param regex [Regexp] a regex used for matching versions in content
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# @return [Hash]
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sig {
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params(
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url: String,
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regex: T.nilable(Regexp),
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unused: T.nilable(T::Hash[Symbol, T.untyped]),
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block: T.nilable(Proc),
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).returns(T::Hash[Symbol, T.untyped])
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}
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def self.find_versions(url:, regex: nil, **unused, &block)
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generated = generate_input_values(url)
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PageMatch.find_versions(url: generated[:url], regex: regex || generated[:regex], **unused, &block)
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end
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end
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end
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end
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end
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