homebrew-cask-versions/lib/cask/pkg.rb
Roland Walker cfee08ab9e uninstall files in chunks of 500.
This is intended to address #2122.
2013-12-31 19:47:31 -05:00

93 lines
2.4 KiB
Ruby

class Cask::Pkg
def self.all_matching(regexp, command)
command.run(%Q(/usr/sbin/pkgutil --pkgs="#{regexp}")).split("\n").map do |package_id|
new(package_id.chomp, command)
end
end
attr_reader :package_id
def initialize(package_id, command=Cask::SystemCommand)
@package_id = package_id
@command = command
end
def uninstall
list('files').each_slice(500) do |file_slice|
@command.run('/bin/rm', :args => file_slice.unshift('-f'), :sudo => true)
end
_deepest_path_first(list('dirs')).each do |dir|
if dir.exist?
_with_full_permissions(dir) do
_clean_broken_symlinks(dir)
_clean_ds_store(dir)
_rmdir(dir)
end
end
end
forget
end
def forget
@command.run!('/usr/sbin/pkgutil', :args => ['--forget', package_id], :sudo => true)
end
def list(type)
@command.run!('/usr/sbin/pkgutil',
:args => ["--only-#{type}", '--files', package_id]
).split("\n").map { |path| root.join(path) }
end
def root
@root ||= Pathname(info.fetch('volume')).join(info.fetch('install-location'))
end
def info
@command.run!('/usr/sbin/pkgutil',
:args => ['--pkg-info-plist', package_id],
:plist => true
)
end
def _rmdir(path)
if path.children.empty?
@command.run!('/bin/rmdir', :args => [path], :sudo => true)
end
end
def _with_full_permissions(path, &block)
original_mode = (path.stat.mode % 01000).to_s(8)
@command.run!('/bin/chmod', :args => ['777', path], :sudo => true)
block.call
ensure
if path.exist? # block may have removed dir
@command.run!('/bin/chmod', :args => [original_mode, path], :sudo => true)
end
end
def _deepest_path_first(paths)
paths.sort do |path_a, path_b|
path_b.to_s.split('/').count <=> path_a.to_s.split('/').count
end
end
# Some pkgs leave broken symlinks hanging around; we clean them out before
# attempting to rmdir to prevent extra cruft from lying around after
# uninstall
def _clean_broken_symlinks(dir)
dir.children.each do |child|
if _broken_symlink?(child)
@command.run!('/bin/rm', :args => [child], :sudo => true)
end
end
end
def _clean_ds_store(dir)
ds_store = dir.join('.DS_Store')
@command.run!('/bin/rm', :args => [ds_store], :sudo => true) if ds_store.exist?
end
def _broken_symlink?(path)
path.symlink? && !path.readlink.exist?
end
end