mirror of
https://github.com/Homebrew/brew.git
synced 2025-07-14 16:09:03 +08:00
92 lines
2.9 KiB
Ruby
92 lines
2.9 KiB
Ruby
require 'cmd/install'
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class Fixnum
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def plural_s
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if self > 1 then "s" else "" end
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end
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end
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module Homebrew extend self
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def upgrade
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if Process.uid.zero? and not File.stat(HOMEBREW_BREW_FILE).uid.zero?
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# note we only abort if Homebrew is *not* installed as sudo and the user
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# calls brew as root. The fix is to chown brew to root.
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abort "Cowardly refusing to `sudo brew upgrade'"
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end
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Homebrew.perform_preinstall_checks
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if ARGV.named.empty?
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require 'cmd/outdated'
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outdated = Homebrew.outdated_brews
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else
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outdated = ARGV.formulae.select do |f|
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if f.installed?
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onoe "#{f}-#{f.installed_version} already installed"
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elsif not f.rack.exist? or f.rack.children.empty?
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onoe "#{f} not installed"
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else
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true
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end
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end
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exit 1 if outdated.empty?
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end
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# Expand the outdated list to include outdated dependencies then sort and
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# reduce such that dependencies are installed first and installation is not
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# attempted twice. Sorting is implicit the way `recursive_deps` returns
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# root dependencies at the head of the list and `uniq` keeps the first
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# element it encounters and discards the rest.
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ARGV.filter_for_dependencies do
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outdated.map!{ |f| f.recursive_deps.reject{ |d| d.installed? } << f }
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outdated.flatten!
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outdated.uniq!
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end unless ARGV.ignore_deps?
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if outdated.length > 1
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oh1 "Upgrading #{outdated.length} outdated package#{outdated.length.plural_s}, with result:"
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puts outdated.map{ |f| "#{f.name} #{f.version}" } * ", "
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end
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outdated.each do |f|
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upgrade_formula f
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end
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end
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def upgrade_formula f
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# Generate using `for_keg` since the formula object points to a newer version
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# that doesn't exist yet. Use `opt_prefix` to guard against keg-only installs.
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# Also, guard against old installs that may not have an `opt_prefix` symlink.
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tab = (f.opt_prefix.exist? ? Tab.for_keg(f.opt_prefix) : Tab.dummy_tab(f))
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outdated_keg = Keg.new(f.linked_keg.realpath) rescue nil
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installer = FormulaInstaller.new(f)
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installer.tab = tab
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installer.show_header = false
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oh1 "Upgrading #{f.name}"
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# first we unlink the currently active keg for this formula otherwise it is
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# possible for the existing build to interfere with the build we are about to
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# do! Seriously, it happens!
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outdated_keg.unlink if outdated_keg
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installer.install
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installer.caveats
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installer.finish
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rescue FormulaInstallationAlreadyAttemptedError
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# We already attempted to upgrade f as part of the dependency tree of
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# another formula. In that case, don't generate an error, just move on.
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rescue CannotInstallFormulaError => e
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ofail e
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rescue BuildError => e
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e.dump
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puts
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Homebrew.failed = true
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ensure
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# restore previous installation state if build failed
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outdated_keg.link if outdated_keg and not f.installed? rescue nil
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end
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end
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