Class: Homebrew::Livecheck::Strategy::GithubLatest

Inherits:
Object
  • Object
show all
Defined in:
livecheck/strategy/github_latest.rb

Overview

The GithubLatest strategy identifies versions of software at github.com by checking a repository’s “latest” release using the GitHub API.

GitHub URLs take a few different formats:

  • https://github.com/example/example/releases/download/1.2.3/example-1.2.3.tar.gz
  • https://github.com/example/example/archive/v1.2.3.tar.gz
  • https://github.com/downloads/example/example/example-1.2.3.tar.gz

GithubLatest should only be used when the upstream repository has a “latest” release for a suitable version and the strategy is necessary or appropriate (e.g. the formula/cask uses a release asset or the Git strategy returns an unreleased version). The strategy can only be applied by using strategy :github_latest in a livecheck block.

The default regex identifies versions like 1.2.3/v1.2.3 in a release’s tag or title. This is a common tag format but a modified regex can be provided in a livecheck block to override the default if a repository uses a different format (e.g. 1.2.3d, 1.2.3-4, etc.).

Constant Summary collapse

NICE_NAME = 
"GitHub - Latest"
PRIORITY =

A priority of zero causes livecheck to skip the strategy. We do this for Homebrew::Livecheck::Strategy::GithubLatest so we can selectively apply the strategy using strategy :github_latest in a livecheck block.

0

Class Method Summary collapse

Class Method Details

.find_versions(url:, regex: GithubReleases::DEFAULT_REGEX, **_unused, &block) ⇒ Hash{Symbol => T.untyped}

Generates the GitHub API URL for the repository’s “latest” release and identifies the version from the JSON response.

Parameters:

  • url (String) —

    the URL of the content to check

  • regex (Regexp) (defaults to: GithubReleases::DEFAULT_REGEX) —

    a regex used for matching versions in content

  • _unused (Hash{Symbol => T.untyped}, nil)
  • block (Proc, nil)

Returns:



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# File 'livecheck/strategy/github_latest.rb', line 82

def self.find_versions(url:, regex: GithubReleases::DEFAULT_REGEX, **_unused, &block)
  match_data = { matches: {}, regex: regex, url: url }

  generated = generate_input_values(url)
  return match_data if generated.blank?

  match_data[:url] = generated[:url]

  release = GitHub.get_latest_release(generated[:username], generated[:repository])
  GithubReleases.versions_from_content(release, regex, &block).each do |match_text|
    match_data[:matches][match_text] = Version.new(match_text)
  end

  match_data
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.

Parameters:

  • url (String) —

    the URL used to generate values

Returns:



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# File 'livecheck/strategy/github_latest.rb', line 55

def self.generate_input_values(url)
  values = {}

  match = url.delete_suffix(".git").match(GithubReleases::URL_MATCH_REGEX)
  return values if match.blank?

  values[:url] = "https://api.github.com/repos/#{match[:username]}/#{match[:repository]}/releases/latest"
  values[:username] = match[:username]
  values[:repository] = match[:repository]

  values
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 'livecheck/strategy/github_latest.rb', line 43

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