forked from Homebrew/legacy-homebrew
/
upgrade.rb
80 lines (67 loc) · 2.25 KB
/
upgrade.rb
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require 'cmd/outdated'
require 'cmd/install'
class Fixnum
def plural_s
if self > 1 then "s" else "" end
end
end
module Homebrew extend self
def upgrade
if Process.uid.zero? and not File.stat(HOMEBREW_BREW_FILE).uid.zero?
# note we only abort if Homebrew is *not* installed as sudo and the user
# calls brew as root. The fix is to chown brew to root.
abort "Cowardly refusing to `sudo brew upgrade'"
end
Homebrew.perform_preinstall_checks
outdated = if ARGV.named.empty?
Homebrew.outdated_brews
else
ARGV.formulae.select do |f|
unless f.rack.exist? and not f.rack.children.empty?
onoe "#{f} not installed"
else
true
end
end
end
# Expand the outdated list to include outdated dependencies then sort and
# reduce such that dependencies are installed first and installation is not
# attempted twice. Sorting is implicit the way `recursive_deps` returns
# root dependencies at the head of the list and `uniq` keeps the first
# element it encounters and discards the rest.
outdated.map!{ |f| f.recursive_deps.reject{ |d| d.installed?} << f }
outdated.flatten!
outdated.uniq!
if outdated.length > 1
oh1 "Upgrading #{outdated.length} outdated package#{outdated.length.plural_s}, with result:"
puts outdated.map{ |f| "#{f.name} #{f.version}" } * ", "
end
outdated.each do |f|
upgrade_formula f
end
end
def upgrade_formula f
tab = Tab.for_formula(f)
outdated_keg = Keg.new(f.linked_keg.realpath) rescue nil
installer = FormulaInstaller.new(f, tab)
installer.show_header = false
oh1 "Upgrading #{f.name}"
# first we unlink the currently active keg for this formula otherwise it is
# possible for the existing build to interfere with the build we are about to
# do! Seriously, it happens!
outdated_keg.unlink if outdated_keg
installer.install
installer.caveats
installer.finish
rescue CannotInstallFormulaError => e
onoe e
Homebrew.failed = true
rescue BuildError => e
e.dump
puts
Homebrew.failed = true
ensure
# restore previous installation state if build failed
outdated_keg.link if outdated_keg and not f.installed? rescue nil
end
end