a1f112f3fe
This reduces the surface area of our `Kernel` monkeypatch and removes the need to `include Kernel` in a bunch of modules. While we're here, also move `Kernel#require?` to `Homebrew` and fully scope the calls to it.
89 lines
2.7 KiB
Ruby
89 lines
2.7 KiB
Ruby
# typed: true # rubocop:todo Sorbet/StrictSigil
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# frozen_string_literal: true
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require "formula"
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require "utils/output"
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# Helper class for traversing a formula's previous versions.
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#
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# @api internal
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class FormulaVersions
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include Context
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include Utils::Output::Mixin
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IGNORED_EXCEPTIONS = [
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ArgumentError, NameError, SyntaxError, TypeError,
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FormulaSpecificationError, FormulaValidationError,
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ErrorDuringExecution, LoadError, MethodDeprecatedError
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].freeze
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sig { params(formula: Formula).void }
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def initialize(formula)
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@name = formula.name
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@path = formula.path
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@repository = T.must(formula.tap).path
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@relative_path = @path.relative_path_from(repository).to_s
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# Also look at e.g. older homebrew-core paths before sharding.
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if (match = @relative_path.match(%r{^(HomebrewFormula|Formula)/([a-z]|lib)/(.+)}))
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@old_relative_path = "#{match[1]}/#{match[3]}"
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end
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@formula_at_revision = {}
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end
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def rev_list(branch)
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repository.cd do
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rev_list_cmd = ["git", "rev-list", "--abbrev-commit", "--remove-empty"]
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[relative_path, old_relative_path].compact.each do |entry|
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Utils.popen_read(*rev_list_cmd, branch, "--", entry) do |io|
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yield [io.readline.chomp, entry] until io.eof?
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end
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end
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end
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end
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sig {
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type_parameters(:U)
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.params(
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revision: String,
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formula_relative_path: String,
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_block: T.proc.params(arg0: Formula).returns(T.type_parameter(:U)),
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).returns(T.nilable(T.type_parameter(:U)))
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}
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def formula_at_revision(revision, formula_relative_path = relative_path, &_block)
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Homebrew.raise_deprecation_exceptions = true
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yield @formula_at_revision[revision] ||= begin
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contents = file_contents_at_revision(revision, formula_relative_path)
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nostdout { Formulary.from_contents(name, path, contents, ignore_errors: true) }
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end
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rescue *IGNORED_EXCEPTIONS => e
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require "utils/backtrace"
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# We rescue these so that we can skip bad versions and
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# continue walking the history
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odebug "#{e} in #{name} at revision #{revision}", Utils::Backtrace.clean(e)
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nil
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rescue FormulaUnavailableError
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nil
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ensure
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Homebrew.raise_deprecation_exceptions = false
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end
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private
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attr_reader :name, :path, :repository, :relative_path, :old_relative_path
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sig { params(revision: String, relative_path: String).returns(String) }
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def file_contents_at_revision(revision, relative_path)
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repository.cd { Utils.popen_read("git", "cat-file", "blob", "#{revision}:#{relative_path}") }
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end
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def nostdout(&block)
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if verbose?
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yield
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else
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redirect_stdout(File::NULL, &block)
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end
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end
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end
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