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#: * `uninstall`, `rm`, `remove` [`--force`] [`--ignore-dependencies`] <formula>:
#: Uninstall <formula>.
#:
#: If `--force` is passed, and there are multiple versions of <formula>
#: installed, delete all installed versions.
#:
#: If `--ignore-dependencies` is passed, uninstalling won't fail, even if
#: formulae depending on <formula> would still be installed.
require "keg"
require "formula"
require "diagnostic"
require "migrator"
module Homebrew
module_function
def uninstall
raise KegUnspecifiedError if ARGV.named.empty?
kegs_by_rack = if ARGV.force?
Hash[ARGV.named.map do |name|
rack = Formulary.to_rack(name)
next unless rack.directory?
[rack, rack.subdirs.map { |d| Keg.new(d) }]
end]
else
ARGV.kegs.group_by(&:rack)
end
if should_check_for_dependents?
all_kegs = kegs_by_rack.values.flatten(1)
return if check_for_dependents all_kegs
end
kegs_by_rack.each do |rack, kegs|
if ARGV.force?
name = rack.basename
if rack.directory?
puts "Uninstalling #{name}... (#{rack.abv})"
kegs.each do |keg|
keg.unlink
keg.uninstall
end
end
rm_pin rack
else
kegs.each do |keg|
keg.lock do
puts "Uninstalling #{keg}... (#{keg.abv})"
keg.unlink
keg.uninstall
rack = keg.rack
rm_pin rack
if rack.directory?
versions = rack.subdirs.map(&:basename)
verb = versions.length == 1 ? "is" : "are"
puts "#{keg.name} #{versions.join(", ")} #{verb} still installed."
puts "Remove all versions with `brew uninstall --force #{keg.name}`."
end
end
end
end
end
rescue MultipleVersionsInstalledError => e
ofail e
puts "Use `brew uninstall --force #{e.name}` to remove all versions."
ensure
# If we delete Cellar/newname, then Cellar/oldname symlink
# can become broken and we have to remove it.
if HOMEBREW_CELLAR.directory?
HOMEBREW_CELLAR.children.each do |rack|
rack.unlink if rack.symlink? && !rack.resolved_path_exists?
end
end
end
def should_check_for_dependents?
# --ignore-dependencies, to be consistent with install
return false if ARGV.include?("--ignore-dependencies")
return false if ARGV.homebrew_developer?
true
end
def check_for_dependents(kegs)
return false unless result = Keg.find_some_installed_dependents(kegs)
requireds, dependents = result
msg = "Refusing to uninstall #{requireds.join(", ")} because "
msg << (requireds.count == 1 ? "it is" : "they are")
msg << " required by #{dependents.join(", ")}, which "
msg << (dependents.count == 1 ? "is" : "are")
msg << " currently installed."
ofail msg
print "You can override this and force removal with "
puts "`brew uninstall --ignore-dependencies #{requireds.map(&:name).join(" ")}`."
true
end
def rm_pin(rack)
Formulary.from_rack(rack).unpin
rescue
nil
end
end
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