
The `ElectronBuilder` strategy uses `YAML#safe_load` to parse YAML content and this limits deserialization to appropriate classes. We recently encountered a `Tried to load unspecified class: Time` error when using the `ElectronBuilder` strategy on a `latest-mac.yml` file containing `releaseDate: 2022-12-01T02:02:46.419Z`. The electron-builder YAML files we usually encounter use single quotes around the `releaseDate` value to ensure it's treated as a string (e.g., `releaseDate: '2022-10-12T17:55:26.718Z'`) and this is what we do in `electron_builder_spec.rb`. The aforementioned YAML file doesn't use single quotes around the value, so it's treated as a timestamp and apparently this makes Psych use `Time` (which `#safe_load` doesn't allow by default). Seeing as we can't control the YAML content and there's a chance we may encounter other files like this in the future, this commit modifies the related `#safe_load` call to allow `Time` (and `Date` for good measure). This will resolve the aforementioned error and allow the `ElectronBuilder` strategy to work as expected in this scenario.
94 lines
3.0 KiB
Ruby
94 lines
3.0 KiB
Ruby
# typed: true
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# frozen_string_literal: true
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module Homebrew
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module Livecheck
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module Strategy
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# The {ElectronBuilder} strategy fetches content at a URL and parses it
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# as an electron-builder appcast in YAML format.
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#
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# This strategy is not applied automatically and it's necessary to use
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# `strategy :electron_builder` in a `livecheck` block to apply it.
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#
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# @api private
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class ElectronBuilder
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extend T::Sig
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NICE_NAME = "electron-builder"
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# A priority of zero causes livecheck to skip the strategy. We do this
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# for {ElectronBuilder} so we can selectively apply it when appropriate.
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PRIORITY = 0
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# The `Regexp` used to determine if the strategy applies to the URL.
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URL_MATCH_REGEX = %r{^https?://.+/[^/]+\.ya?ml(?:\?[^/?]+)?$}i.freeze
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# Whether the strategy can be applied to the provided URL.
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#
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# @param url [String] the URL to match against
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# @return [Boolean]
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sig { params(url: String).returns(T::Boolean) }
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def self.match?(url)
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URL_MATCH_REGEX.match?(url)
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end
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# Parses YAML text and identifies versions in it.
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#
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# @param content [String] the YAML text to parse and check
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# @param regex [Regexp, nil] a regex for use in a strategy block
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# @return [Array]
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sig {
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params(
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content: String,
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regex: T.nilable(Regexp),
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block: T.untyped,
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).returns(T::Array[String])
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}
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def self.versions_from_content(content, regex = nil, &block)
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require "yaml"
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yaml = YAML.safe_load(content, permitted_classes: [Date, Time])
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return [] if yaml.blank?
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if block
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block_return_value = regex.present? ? yield(yaml, regex) : yield(yaml)
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return Strategy.handle_block_return(block_return_value)
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end
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version = yaml["version"]
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version.present? ? [version] : []
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end
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# Checks the YAML content at the URL for new versions.
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#
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# @param url [String] the URL of the content to check
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# @return [Hash]
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sig {
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params(
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url: String,
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regex: T.nilable(Regexp),
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_unused: T.nilable(T::Hash[Symbol, T.untyped]),
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block: T.untyped,
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).returns(T::Hash[Symbol, T.untyped])
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}
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def self.find_versions(url:, regex: nil, **_unused, &block)
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if regex.present? && block.blank?
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raise ArgumentError, "#{T.must(name).demodulize} only supports a regex when using a `strategy` block"
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end
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match_data = { matches: {}, regex: regex, url: url }
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match_data.merge!(Strategy.page_content(url))
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content = match_data.delete(:content)
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versions_from_content(content, regex, &block).each do |version_text|
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match_data[:matches][version_text] = Version.new(version_text)
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end
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match_data
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end
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end
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end
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end
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end
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