Class: Homebrew::Livecheck::Strategy::Apache

Inherits:
Object
  • Object
show all
Defined in:
Library/Homebrew/livecheck/strategy/apache.rb

Overview

The Apache strategy identifies versions of software at apache.org by checking directory listing pages.

Apache URLs start with https://www.apache.org/dyn/closer.lua?path=. The path parameter takes one of the following formats:

  • example/1.2.3/example-1.2.3.tar.gz
  • example/example-1.2.3/example-1.2.3.tar.gz
  • example/example-1.2.3-bin.tar.gz

When the path contains a version directory (e.g. /1.2.3/, /example-1.2.3/, etc.), the default regex matches numeric versions in directory names. Otherwise, the default regex matches numeric versions in filenames.

Constant Summary collapse

URL_MATCH_REGEX =

The Regexp used to determine if the strategy applies to the URL.

%r{www\.apache\.org/dyn/.+path=.+}i.freeze

Class Method Summary collapse

Class Method Details

.find_versions(url, regex = nil) ⇒ Hash

Generates a URL and regex (if one isn't provided) and passes them to PageMatch.find_versions to identify versions in the content.

Parameters:

  • url (String) —

    the URL of the content to check

  • regex (Regexp) (defaults to: nil) —

    a regex used for matching versions in content

Returns:

  • (Hash) 

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# File 'Library/Homebrew/livecheck/strategy/apache.rb', line 41

def self.find_versions(url, regex = nil)
  %r{
    path=
    (?<path>.+?)/ # Path to directory of files or version directories
    (?<prefix>[^/]*?) # Any text in filename or directory before version
    v?\d+(?:\.\d+)+ # The numeric version
    (?<suffix>/|[^/]*) # Any text in filename or directory after version
  }ix =~ url

  # Use `\.t` instead of specific tarball extensions (e.g. .tar.gz)
  suffix.sub!(/\.t(?:ar\..+|[a-z0-9]+)$/i, "\.t")

  # Example URL: `https://archive.apache.org/dist/example/`
  page_url = "https://archive.apache.org/dist/#{path}/"

  # Example directory regex: `%r{href=["']?v?(\d+(?:\.\d+)+)/}i`
  # Example file regexes:
  # * `/href=["']?example-v?(\d+(?:\.\d+)+)\.t/i`
  # * `/href=["']?example-v?(\d+(?:\.\d+)+)-bin\.zip/i`
  regex ||= /href=["']?#{Regexp.escape(prefix)}v?(\d+(?:\.\d+)+)#{Regexp.escape(suffix)}/i

  Homebrew::Livecheck::Strategy::PageMatch.find_versions(page_url, regex)
end

.match?(url) ⇒ Boolean

Whether the strategy can be applied to the provided URL.

Parameters:

  • url (String) —

    the URL to match against

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/livecheck/strategy/apache.rb', line 31

def self.match?(url)
  URL_MATCH_REGEX.match?(url)
end