 fef8b0871d
			
		
	
	
		fef8b0871d
		
	
	
	
	
		
			
			This was added in 3a7a3619f7016c75c3e53e944221bf7f6354a63b to make the tests pass, but this method is now stubbed out in the tests, so we can assume $? will be non-nil.
		
			
				
	
	
		
			289 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			289 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| require 'cmd/tap'
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| require 'cmd/untap'
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| 
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| module Homebrew
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|   def update
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|     unless ARGV.named.empty?
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|       abort <<-EOS.undent
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|         This command updates brew itself, and does not take formula names.
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|         Use `brew upgrade <formula>`.
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|       EOS
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|     end
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| 
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|     # ensure GIT_CONFIG is unset as we need to operate on .git/config
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|     ENV.delete('GIT_CONFIG')
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| 
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|     cd HOMEBREW_REPOSITORY
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|     git_init_if_necessary
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| 
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|     tapped_formulae = []
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|     HOMEBREW_LIBRARY.join("Formula").children.each do |path|
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|       next unless path.symlink?
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|       tapped_formulae << path.resolved_path
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|     end
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|     unlink_tap_formula(tapped_formulae)
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| 
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|     report = Report.new
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|     master_updater = Updater.new(HOMEBREW_REPOSITORY)
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|     begin
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|       master_updater.pull!
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|     ensure
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|       link_tap_formula(tapped_formulae)
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|     end
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|     report.update(master_updater.report)
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| 
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|     # rename Taps directories
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|     # this procedure will be removed in the future if it seems unnecessasry
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|     rename_taps_dir_if_necessary
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| 
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|     each_tap do |user, repo|
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|       repo.cd do
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|         updater = Updater.new(repo)
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| 
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|         begin
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|           updater.pull!
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|         rescue
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|           onoe "Failed to update tap: #{user.basename}/#{repo.basename.sub("homebrew-", "")}"
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|         else
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|           report.update(updater.report) do |key, oldval, newval|
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|             oldval.concat(newval)
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|           end
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|         end
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|       end
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|     end
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| 
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|     # we unlink first in case the formula has moved to another tap
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|     Homebrew.unlink_tap_formula(report.removed_tapped_formula)
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|     Homebrew.link_tap_formula(report.new_tapped_formula)
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| 
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|     # automatically tap any migrated formulae's new tap
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|     report.select_formula(:D).each do |f|
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|       next unless (HOMEBREW_CELLAR/f).exist?
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|       migration = TAP_MIGRATIONS[f]
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|       next unless migration
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|       tap_user, tap_repo = migration.split '/'
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|       install_tap tap_user, tap_repo
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|     end if load_tap_migrations
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| 
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|     if report.empty?
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|       puts "Already up-to-date."
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|     else
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|       puts "Updated Homebrew from #{master_updater.initial_revision[0,8]} to #{master_updater.current_revision[0,8]}."
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|       report.dump
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|     end
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|   end
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| 
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|   private
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| 
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|   def git_init_if_necessary
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|     if Dir[".git/*"].empty?
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|       safe_system "git", "init"
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|       safe_system "git", "config", "core.autocrlf", "false"
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|       safe_system "git", "config", "remote.origin.url", "https://github.com/Homebrew/homebrew.git"
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|       safe_system "git", "config", "remote.origin.fetch", "+refs/heads/*:refs/remotes/origin/*"
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|       safe_system "git", "fetch", "origin"
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|       safe_system "git", "reset", "--hard", "origin/master"
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|     end
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| 
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|     if `git remote show origin -n` =~ /Fetch URL: \S+mxcl\/homebrew/
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|       safe_system "git", "remote", "set-url", "origin", "https://github.com/Homebrew/homebrew.git"
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|       safe_system "git", "remote", "set-url", "--delete", "origin", ".*mxcl\/homebrew.*"
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|     end
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|   rescue Exception
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|     FileUtils.rm_rf ".git"
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|     raise
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|   end
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| 
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|   def rename_taps_dir_if_necessary
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|     need_repair_taps = false
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|     Dir.glob("#{HOMEBREW_LIBRARY}/Taps/*/") do |tapd|
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|       begin
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|         tapd_basename = File.basename(tapd)
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| 
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|         if File.directory?(tapd + "/.git")
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|           if tapd_basename.include?("-")
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|             # only replace the *last* dash: yes, tap filenames suck
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|             user, repo = tapd_basename.reverse.sub("-", "/").reverse.split("/")
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| 
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|             FileUtils.mkdir_p("#{HOMEBREW_LIBRARY}/Taps/#{user.downcase}")
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|             FileUtils.mv(tapd, "#{HOMEBREW_LIBRARY}/Taps/#{user.downcase}/homebrew-#{repo.downcase}")
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|             need_repair_taps = true
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| 
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|             if tapd_basename.count("-") >= 2
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|               opoo "Homebrew changed the structure of Taps like <someuser>/<sometap>. "\
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|                 + "So you may need to rename #{HOMEBREW_LIBRARY}/Taps/#{user.downcase}/homebrew-#{repo.downcase} manually."
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|             end
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|           else
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|             opoo "Homebrew changed the structure of Taps like <someuser>/<sometap>. "\
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|               "#{tapd} is incorrect name format. You may need to rename it like <someuser>/<sometap> manually."
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|           end
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|         end
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|       rescue => ex
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|         onoe ex.message
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|         next # next tap directory
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|       end
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|     end
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| 
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|     repair_taps if need_repair_taps
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|   end
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| 
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|   def load_tap_migrations
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|     require 'tap_migrations'
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|   rescue LoadError
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|     false
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|   end
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| end
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| 
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| class Updater
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|   attr_reader :initial_revision, :current_revision, :repository
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| 
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|   def initialize(repository)
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|     @repository = repository
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|   end
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| 
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|   def pull!
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|     safe_system "git", "checkout", "-q", "master"
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| 
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|     @initial_revision = read_current_revision
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| 
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|     # ensure we don't munge line endings on checkout
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|     safe_system "git", "config", "core.autocrlf", "false"
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| 
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|     args = ["pull"]
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|     args << "--rebase" if ARGV.include? "--rebase"
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|     args << "-q" unless ARGV.verbose?
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|     args << "origin"
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|     # the refspec ensures that 'origin/master' gets updated
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|     args << "refs/heads/master:refs/remotes/origin/master"
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| 
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|     reset_on_interrupt { safe_system "git", *args }
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| 
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|     @current_revision = read_current_revision
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|   end
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| 
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|   def reset_on_interrupt
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|     ignore_interrupts { yield }
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|   ensure
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|     if $?.signaled? && $?.termsig == 2 # SIGINT
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|       safe_system "git", "reset", "--hard", @initial_revision
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|     end
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|   end
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| 
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|   def report
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|     map = Hash.new{ |h,k| h[k] = [] }
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| 
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|     if initial_revision && initial_revision != current_revision
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|       diff.each_line do |line|
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|         status, *paths = line.split
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|         src, dst = paths.first, paths.last
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| 
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|         next unless File.extname(dst) == ".rb"
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|         next unless paths.any? { |p| File.dirname(p) == formula_directory }
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| 
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|         case status
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|         when "A", "M", "D"
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|           map[status.to_sym] << repository.join(src)
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|         when /^R\d{0,3}/
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|           map[:D] << repository.join(src) if File.dirname(src) == formula_directory
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|           map[:A] << repository.join(dst) if File.dirname(dst) == formula_directory
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|         end
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|       end
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|     end
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| 
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|     map
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|   end
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| 
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|   private
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| 
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|   def formula_directory
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|     if repository == HOMEBREW_REPOSITORY
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|       "Library/Formula"
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|     elsif repository.join("Formula").directory?
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|       "Formula"
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|     elsif repository.join("HomebrewFormula").directory?
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|       "HomebrewFormula"
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|     else
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|       "."
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|     end
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|   end
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| 
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|   def read_current_revision
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|     `git rev-parse -q --verify HEAD`.chomp
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|   end
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| 
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|   def diff
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|     Utils.popen_read(
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|       "git", "diff-tree", "-r", "--name-status", "--diff-filter=AMDR",
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|       "-M85%", initial_revision, current_revision
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|     )
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|   end
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| 
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|   def `(cmd)
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|     out = super
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|     unless $?.success?
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|       $stderr.puts(out) unless out.empty?
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|       raise ErrorDuringExecution.new(cmd)
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|     end
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|     ohai(cmd, out) if ARGV.verbose?
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|     out
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|   end
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| end
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| 
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| 
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| class Report
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|   def initialize
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|     @hash = {}
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|   end
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| 
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|   def fetch(*args, &block)
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|     @hash.fetch(*args, &block)
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|   end
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| 
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|   def update(*args, &block)
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|     @hash.update(*args, &block)
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|   end
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| 
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|   def empty?
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|     @hash.empty?
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|   end
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| 
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|   def dump
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|     # Key Legend: Added (A), Copied (C), Deleted (D), Modified (M), Renamed (R)
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| 
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|     dump_formula_report :A, "New Formulae"
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|     dump_formula_report :M, "Updated Formulae"
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|     dump_formula_report :D, "Deleted Formulae"
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|   end
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| 
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|   def tapped_formula_for key
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|     fetch(key, []).select { |path| HOMEBREW_TAP_PATH_REGEX === path.to_s }
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|   end
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| 
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|   def new_tapped_formula
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|     tapped_formula_for :A
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|   end
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| 
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|   def removed_tapped_formula
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|     tapped_formula_for :D
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|   end
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| 
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|   def select_formula key
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|     fetch(key, []).map do |path|
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|       case path.to_s
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|       when HOMEBREW_TAP_PATH_REGEX
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|         "#{$1}/#{$2.sub("homebrew-", "")}/#{path.basename(".rb")}"
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|       else
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|         path.basename(".rb").to_s
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|       end
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|     end.sort
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|   end
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| 
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|   def dump_formula_report key, title
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|     formula = select_formula(key)
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|     unless formula.empty?
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|       ohai title
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|       puts_columns formula
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|     end
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|   end
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| end
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