Class: Homebrew::Livecheck::Strategy::Gnu
- Inherits:
-
Object
- Object
- Homebrew::Livecheck::Strategy::Gnu
- Extended by:
- T::Sig
- Defined in:
- livecheck/strategy/gnu.rb
Overview
The Gnu strategy identifies versions of software at gnu.org by checking directory listing pages.
GNU URLs use a variety of formats:
- Archive file URLs:
https://ftp.gnu.org/gnu/example/example-1.2.3.tar.gz
https://ftp.gnu.org/gnu/example/1.2.3/example-1.2.3.tar.gz
- Homepage URLs:
https://www.gnu.org/software/example/
https://example.gnu.org
There are other URL formats that this strategy currently doesn’t support:
https://ftp.gnu.org/non-gnu/example/source/feature/1.2.3/example-1.2.3.tar.gz
https://savannah.nongnu.org/download/example/example-1.2.3.tar.gz
https://download.savannah.gnu.org/releases/example/example-1.2.3.tar.gz
https://download.savannah.nongnu.org/releases/example/example-1.2.3.tar.gz
The default regex identifies versions in archive files found in href
attributes.
Constant Summary collapse
- NICE_NAME =
"GNU"
- URL_MATCH_REGEX =
The
Regexp
used to determine if the strategy applies to the URL. %r{ ^https?:// (?:(?:[^/]+?\.)*gnu\.org/(?:gnu|software)/(?<project_name>[^/]+)/ |(?<project_name>[^/]+)\.gnu\.org/?$) }ix.freeze
Class Method Summary collapse
-
.find_versions(url, regex, cask: nil, &block) ⇒ Hash{Symbol => T.untyped}
Generates a URL and regex (if one isn’t provided) and passes them to PageMatch.find_versions to identify versions in the content.
-
.match?(url) ⇒ Boolean
Whether the strategy can be applied to the provided URL.
Class Method Details
.find_versions(url, regex, cask: nil, &block) ⇒ Hash{Symbol => T.untyped}
Generates a URL and regex (if one isn’t provided) and passes them to PageMatch.find_versions to identify versions in the content.
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 |
# File 'livecheck/strategy/gnu.rb', line 65 def self.find_versions(url, regex, cask: nil, &block) match = url.match(URL_MATCH_REGEX) # The directory listing page for the project's files page_url = "http://ftp.gnu.org/gnu/#{match[:project_name]}/?C=M&O=D" # The default regex consists of the following parts: # * `href=.*?`: restricts matching to URLs in `href` attributes # * The project name # * `[._-]`: the generic delimiter between project name and version # * `v?(\d+(?:\.\d+)*)`: the numeric version # * `(?:\.[a-z]+|/)`: the file extension (a trailing delimiter) # # Example regex: `%r{href=.*?example[._-]v?(\d+(?:\.\d+)*)(?:\.[a-z]+|/)}i` regex ||= %r{href=.*?#{match[:project_name]}[._-]v?(\d+(?:\.\d+)*)(?:\.[a-z]+|/)}i PageMatch.find_versions(page_url, regex, cask: cask, &block) end |
.match?(url) ⇒ Boolean
Whether the strategy can be applied to the provided URL.
47 48 49 |
# File 'livecheck/strategy/gnu.rb', line 47 def self.match?(url) URL_MATCH_REGEX.match?(url) && url.exclude?("savannah.") end |