Class: Homebrew::Livecheck::Strategy::ExtractPlist Private

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

Overview

This class is part of a private API. This class may only be used in the Homebrew/brew repository. Third parties should avoid using this class if possible, as it may be removed or changed without warning.

The ExtractPlist strategy downloads the file at a URL and extracts versions from contained .plist files using UnversionedCaskChecker.

In practice, this strategy operates by downloading very large files, so it's both slow and data-intensive. As such, the ExtractPlist strategy should only be used as an absolute last resort.

This strategy is not applied automatically and it's necessary to use strategy :extract_plist in a livecheck block to apply it.

Defined Under Namespace

Classes: Item

Constant Summary collapse

PRIORITY =

This constant is part of a private API. This constant may only be used in the Homebrew/brew repository. Third parties should avoid using this constant if possible, as it may be removed or changed without warning.

A priority of zero causes livecheck to skip the strategy. We do this for Homebrew::Livecheck::Strategy::ExtractPlist so we can selectively apply it when appropriate.

0
URL_MATCH_REGEX =

This constant is part of a private API. This constant may only be used in the Homebrew/brew repository. Third parties should avoid using this constant if possible, as it may be removed or changed without warning.

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

%r{^https?://}i

Class Method Summary collapse

Class Method Details

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

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Uses UnversionedCaskChecker on the provided cask to identify versions from plist files.

Parameters:

  • cask (Cask::Cask) —

    the cask to check for version information

  • url (String, nil) (defaults to: nil) —

    an alternative URL to check for version information

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

    a regex for use in a strategy block

  • _unused (T.untyped)
  • block (Proc, nil)

Returns:



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# File 'livecheck/strategy/extract_plist.rb', line 92

def self.find_versions(cask:, url: nil, regex: nil, **_unused, &block)
  if regex.present? && block.blank?
    raise ArgumentError,
          "#{Utils.demodulize(T.must(name))} only supports a regex when using a `strategy` block"
  end
  unless T.unsafe(cask)
    raise ArgumentError, "The #{Utils.demodulize(T.must(name))} strategy only supports casks."
  end

  match_data = { matches: {}, regex:, url: }

  unversioned_cask_checker = if url.present? && url != cask.url.to_s
    # Create a copy of the `cask` that uses the `livecheck` block URL
    cask_copy = Cask::CaskLoader.load(cask.sourcefile_path)
    cask_copy.allow_reassignment = true
    cask_copy.url url
    UnversionedCaskChecker.new(cask_copy)
  else
    UnversionedCaskChecker.new(cask)
  end

  items = unversioned_cask_checker.all_versions.transform_values { |v| Item.new(bundle_version: v) }

  versions_from_items(items, regex, &block).each do |version_text|
    match_data[:matches][version_text] = Version.new(version_text)
  end

  match_data
end

.match?(url) ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

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/extract_plist.rb', line 32

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

.versions_from_items(items, regex = nil, &block) ⇒ Array<String>

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Identify versions from Items produced using UnversionedCaskChecker version information.

Parameters:

  • items (Hash{String => Item}) —

    a hash of Items containing version information

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

    a regex for use in a strategy block

  • block (Proc, nil)

Returns:



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# File 'livecheck/strategy/extract_plist.rb', line 64

def self.versions_from_items(items, regex = nil, &block)
  if block
    block_return_value = regex.present? ? yield(items, regex) : yield(items)
    return Strategy.handle_block_return(block_return_value)
  end

  items.filter_map do |_key, item|
    item.bundle_version.nice_version
  end.uniq
end