homebrew-cask/lib/hbc/pkg.rb

117 lines
3.3 KiB
Ruby

class Hbc::Pkg
def self.all_matching(regexp, command)
command.run('/usr/sbin/pkgutil', :args => [%Q{--pkgs=#{regexp}}]).stdout.split("\n").map do |package_id|
new(package_id.chomp, command)
end
end
attr_reader :package_id
def initialize(package_id, command=Hbc::SystemCommand)
@package_id = package_id
@command = command
end
def uninstall
odebug "Deleting pkg files"
pkgutil_bom_files.each_slice(500) do |file_slice|
@command.run('/bin/rm', :args => file_slice.unshift('-f', '--'), :sudo => true)
end
odebug "Deleting pkg symlinks and special files"
pkgutil_bom_specials.each_slice(500) do |file_slice|
@command.run('/bin/rm', :args => file_slice.unshift('-f', '--'), :sudo => true)
end
odebug "Deleting pkg directories"
_deepest_path_first(pkgutil_bom_dirs).each do |dir|
if dir.exist? && !Hbc::MacOS.undeletable?(dir)
_with_full_permissions(dir) do
_clean_broken_symlinks(dir)
_clean_ds_store(dir)
_rmdir(dir)
end
end
end
forget
end
def forget
odebug "Unregistering pkg receipt (aka forgetting)"
@command.run!('/usr/sbin/pkgutil', :args => ['--forget', package_id], :sudo => true)
end
def pkgutil_bom_files
@command.run!('/usr/sbin/pkgutil',
:args => ['--only-files', '--files', package_id]
).stdout.split("\n").map { |path| root.join(path) }
end
def pkgutil_bom_dirs
@command.run!('/usr/sbin/pkgutil',
:args => ['--only-dirs', '--files', package_id]
).stdout.split("\n").map { |path| root.join(path) }
end
def pkgutil_bom_all
@command.run!('/usr/sbin/pkgutil',
:args => ['--files', package_id]
).stdout.split("\n").map { |path| root.join(path) }
end
def pkgutil_bom_specials
pkgutil_bom_all - pkgutil_bom_files - pkgutil_bom_dirs
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
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)
# todo: similarly read and restore macOS flags (cf man chflags)
@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.exist?
end
end