Class: Homebrew::Livecheck::Strategy::Sourceforge
- Inherits:
-
Object
- Object
- Homebrew::Livecheck::Strategy::Sourceforge
- Defined in:
- livecheck/strategy/sourceforge.rb
Overview
The Sourceforge strategy identifies versions of software at sourceforge.net by checking a project’s RSS feed.
SourceForge URLs take a few different formats:
https://downloads.sourceforge.net/project/example/example-1.2.3.tar.gz
https://svn.code.sf.net/p/example/code/trunk
:pserver:anonymous:@example.cvs.sourceforge.net:/cvsroot/example
The RSS feed for a project contains the most recent release archives and while this is fine for most projects, this approach has some shortcomings. Some project releases involve so many files that the one we’re interested in isn’t present in the feed content. Some projects contain additional software and the archive we’re interested in is pushed out of the feed (especially if it hasn’t been updated recently).
Usually we address this situation by adding a livecheck
block to
the formula/cask that checks the page for the relevant directory in the
project instead. In this situation, it’s necessary to use
strategy :page_match
to prevent the Sourceforge stratgy from
being used.
The default regex matches within url
attributes in the RSS feed
and identifies versions within directory names or filenames.
Constant Summary collapse
- NICE_NAME =
"SourceForge"
- URL_MATCH_REGEX =
The
Regexp
used to determine if the strategy applies to the URL. %r{ ^https?://(?:[^/]+?\.)*(?:sourceforge|sf)\.net (?:/projects?/(?<project_name>[^/]+)/ |/p/(?<project_name>[^/]+)/ |(?::/cvsroot)?/(?<project_name>[^/]+)) }ix.freeze
Class Method Summary collapse
-
.find_versions(url:, regex: nil, **unused, &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.
-
.generate_input_values(url) ⇒ Hash{Symbol => T.untyped}
Extracts information from a provided URL and uses it to generate various input values used by the strategy to check for new versions.
-
.match?(url) ⇒ Boolean
Whether the strategy can be applied to the provided URL.
Class Method Details
.find_versions(url:, regex: nil, **unused, &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.
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# File 'livecheck/strategy/sourceforge.rb', line 98 def self.find_versions(url:, regex: nil, **unused, &block) generated = generate_input_values(url) T.unsafe(PageMatch).find_versions( url: generated[:url] || url, regex: regex || generated[:regex], **unused, &block ) end |
.generate_input_values(url) ⇒ Hash{Symbol => T.untyped}
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.
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# File 'livecheck/strategy/sourceforge.rb', line 63 def self.generate_input_values(url) values = {} match = url.match(URL_MATCH_REGEX) return values if match.blank? # Don't generate a URL if the URL already points to the RSS feed unless url.match?(%r{/rss(?:/?$|\?)}) values[:url] = "https://sourceforge.net/projects/#{match[:project_name]}/rss" end regex_name = Regexp.escape(T.must(match[:project_name])).gsub("\\-", "-") # It may be possible to improve the generated regex but there's quite # a bit of variation between projects and it can be challenging to # create something that works for most URLs. values[:regex] = %r{url=.*?/#{regex_name}/files/.*?[-_/](\d+(?:[-.]\d+)+)[-_/%.]}i values end |
.match?(url) ⇒ Boolean
Whether the strategy can be applied to the provided URL.
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# File 'livecheck/strategy/sourceforge.rb', line 51 def self.match?(url) URL_MATCH_REGEX.match?(url) end |