1c10a6260f
Partial implementation of https://github.com/Homebrew/brew-evolution/pull/15, along with the ability to search for deleted formulae in git history (inspired by #1996) which is not described in the proposal. See also: #1371.
58 lines
2.0 KiB
Ruby
58 lines
2.0 KiB
Ruby
require "formulary"
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require "tap"
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module Homebrew
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module_function
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# name should not be qualified, since migration of qualified names is already
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# handled in Formulary::TapLoader.formula_name_path.
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def search_for_migrated_formula(name, options = {})
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print_messages = options.fetch(:print_messages, true)
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migrations = []
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Tap.each do |old_tap|
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new_tap_name = old_tap.tap_migrations[name]
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next unless new_tap_name
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migrations << [old_tap, new_tap_name]
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next unless print_messages
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deprecation = (new_tap_name == "homebrew/boneyard") ? "deprecated " : ""
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puts "A #{deprecation}formula named \"#{name}\" has been migrated from #{old_tap} to #{new_tap_name}."
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end
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migrations
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end
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# name may be qualified.
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def search_for_deleted_formula(name, options = {})
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print_messages = options.fetch(:print_messages, true)
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warn_shallow = options.fetch(:warn_shallow, false)
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path = Formulary.path name
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raise FormulaExistsError.new(name, path) if File.exist? path
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path.to_s =~ HOMEBREW_TAP_PATH_REGEX
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tap = Tap.new ($1 == "Homebrew" ? "homebrew" : $1), $2.strip_prefix("homebrew-")
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raise TapUnavailableError, tap.name unless File.exist? tap.path
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relpath = path.relative_path_from tap.path
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cd tap.path
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if warn_shallow && File.exist?(".git/shallow")
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opoo <<-EOS.undend
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The git repository is a shallow clone therefore the output may be incomplete.
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Use `git fetch -C #{tap.path} --unshallow` to get the full repository.
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EOS
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end
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log_cmd = "git log --name-only --max-count=1 --format=$'format:%H\\n%h' -- #{relpath}"
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hash, hash_abbrev, relpath = Utils.popen_read(log_cmd).lines.map(&:chomp)
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if hash.to_s.empty? || hash_abbrev.to_s.empty? || relpath.to_s.empty?
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raise FormulaUnavailableError, name
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end
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if print_messages
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puts "#{name} was deleted from #{tap.name} in commit #{hash_abbrev}."
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puts "Run `brew boneyard #{name}` to show the formula's content prior to its removal."
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end
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[tap, relpath, hash, hash_abbrev]
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end
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end
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