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68 lines
2.6 KiB
Ruby
68 lines
2.6 KiB
Ruby
# typed: false
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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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# Apache URLs start with `https://www.apache.org/dyn/closer.lua?path=`.
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# The `path` parameter 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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# 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{www\.apache\.org/dyn/.+path=.+}i.freeze
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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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def self.match?(url)
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URL_MATCH_REGEX.match?(url)
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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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def self.find_versions(url, regex = nil)
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%r{
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path=
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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 =~ url
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# Use `\.t` instead of specific tarball extensions (e.g. .tar.gz)
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suffix.sub!(/\.t(?:ar\..+|[a-z0-9]+)$/i, "\.t")
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# Example URL: `https://archive.apache.org/dist/example/`
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page_url = "https://archive.apache.org/dist/#{path}/"
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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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regex ||= /href=["']?#{Regexp.escape(prefix)}v?(\d+(?:\.\d+)+)#{Regexp.escape(suffix)}/i
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Homebrew::Livecheck::Strategy::PageMatch.find_versions(page_url, regex)
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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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