mirror of
https://github.com/Homebrew/brew.git
synced 2025-07-15 19:56:59 +08:00
185 lines
4.4 KiB
Ruby
185 lines
4.4 KiB
Ruby
require 'cmd/tap'
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require 'cmd/untap'
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module Homebrew extend self
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DEPRECATED_TAPS = ['adamv-alt']
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def update
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abort "Please `brew install git' first." unless which "git"
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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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cd HOMEBREW_REPOSITORY
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git_init_if_necessary
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report = Report.new
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master_updater = Updater.new
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master_updater.pull!
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report.merge!(master_updater.report)
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new_files = []
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Dir["Library/Taps/*"].each do |tapd|
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next unless File.directory?(tapd)
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basename = Pathname.new(tapd).basename.to_s
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if DEPRECATED_TAPS.include?(basename)
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opoo "#{basename} is deprecated; please untap it"
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next
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end
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cd tapd do
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begin
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updater = Updater.new
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updater.pull!
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report.merge!(updater.report) do |key, oldval, newval|
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oldval.concat(newval)
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end
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rescue
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tapd =~ %r{^Library/Taps/(\w+)-(\w+)}
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onoe "Failed to update tap: #$1/#$2"
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end
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end
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end
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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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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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private
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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 remote add origin https://github.com/mxcl/homebrew.git"
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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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rescue Exception
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FileUtils.rm_rf ".git"
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raise
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end
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end
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class Updater
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attr_reader :initial_revision, :current_revision
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def pull!
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safe_system "git checkout -q master"
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@initial_revision = read_current_revision
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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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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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safe_system "git", *args
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@current_revision = read_current_revision
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end
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# Matches raw git diff format (see `man git-diff-tree`)
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DIFFTREE_RX = /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} [0-9a-fA-F]{40} ([ACDMR])\d{0,3}\t(.+?)(?:\t(.+))?$/
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def report
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map = Hash.new{ |h,k| h[k] = [] }
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if initial_revision && initial_revision != current_revision
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`git diff-tree -r --raw -M85% #{initial_revision} #{current_revision}`.each_line do |line|
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DIFFTREE_RX.match line
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path = case status = $1.to_sym
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when :R then $3
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else $2
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end
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path = Pathname.pwd.join(path).relative_path_from(HOMEBREW_REPOSITORY)
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map[status] << path.to_s
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end
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end
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map
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end
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private
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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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def `(cmd)
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out = Kernel.`(cmd) #`
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if $? && !$?.success?
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$stderr.puts out
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raise ErrorDuringExecution, "Failure while executing: #{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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class Report < Hash
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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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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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dump_formula_report :R, "Renamed Formulae"
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# dump_new_commands
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# dump_deleted_commands
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end
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def tapped_formula_for key
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fetch(key, []).map do |path|
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case path when %r{^Library/Taps/(\w+-\w+/.*)}
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Pathname.new($1)
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end
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end.compact
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end
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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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def removed_tapped_formula
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tapped_formula_for :D
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end
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def select_formula key
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fetch(key, []).map do |path|
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case path when %r{^Library/Formula}
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File.basename(path, ".rb")
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when %r{^Library/Taps/(\w+)-(\w+)/(.*)\.rb}
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"#$1/#$2/#{File.basename(path, '.rb')}"
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end
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end.compact.sort
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end
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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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