406 lines
13 KiB
Ruby
406 lines
13 KiB
Ruby
# frozen_string_literal: true
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require "timeout"
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require "utils/user"
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require "cask/artifact/abstract_artifact"
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require "extend/hash_validator"
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using HashValidator
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module Cask
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module Artifact
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class AbstractUninstall < AbstractArtifact
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ORDERED_DIRECTIVES = [
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:early_script,
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:launchctl,
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:quit,
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:signal,
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:login_item,
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:kext,
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:script,
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:pkgutil,
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:delete,
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:trash,
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:rmdir,
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].freeze
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def self.from_args(cask, **directives)
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new(cask, directives)
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end
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attr_reader :directives
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def initialize(cask, directives)
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directives.assert_valid_keys!(*ORDERED_DIRECTIVES)
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super(cask)
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directives[:signal] = [*directives[:signal]].flatten.each_slice(2).to_a
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@directives = directives
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return unless directives.key?(:kext)
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cask.caveats do
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kext
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end
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end
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def to_h
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directives.to_h
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end
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def summarize
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to_h.flat_map { |key, val| [*val].map { |v| "#{key.inspect} => #{v.inspect}" } }.join(", ")
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end
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private
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def dispatch_uninstall_directives(**options)
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ORDERED_DIRECTIVES.each do |directive_sym|
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dispatch_uninstall_directive(directive_sym, **options)
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end
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end
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def dispatch_uninstall_directive(directive_sym, **options)
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return unless directives.key?(directive_sym)
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args = directives[directive_sym]
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send("uninstall_#{directive_sym}", *(args.is_a?(Hash) ? [args] : args), **options)
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end
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def stanza
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self.class.dsl_key
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end
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# Preserve prior functionality of script which runs first. Should rarely be needed.
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# :early_script should not delete files, better defer that to :script.
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# If Cask writers never need :early_script it may be removed in the future.
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def uninstall_early_script(directives, **options)
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uninstall_script(directives, directive_name: :early_script, **options)
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end
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# :launchctl must come before :quit/:signal for cases where app would instantly re-launch
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def uninstall_launchctl(*services, command: nil, **_)
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services.each do |service|
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ohai "Removing launchctl service #{service}"
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[false, true].each do |with_sudo|
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plist_status = command.run(
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"/bin/launchctl",
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args: ["list", service],
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sudo: with_sudo, print_stderr: false
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).stdout
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if plist_status.match?(/^\{/)
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command.run!("/bin/launchctl", args: ["remove", service], sudo: with_sudo)
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sleep 1
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end
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paths = [
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+"/Library/LaunchAgents/#{service}.plist",
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+"/Library/LaunchDaemons/#{service}.plist",
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]
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paths.each { |elt| elt.prepend(ENV["HOME"]).freeze } unless with_sudo
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paths = paths.map { |elt| Pathname(elt) }.select(&:exist?)
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paths.each do |path|
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command.run!("/bin/rm", args: ["-f", "--", path], sudo: with_sudo)
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end
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# undocumented and untested: pass a path to uninstall :launchctl
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next unless Pathname(service).exist?
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command.run!("/bin/launchctl", args: ["unload", "-w", "--", service], sudo: with_sudo)
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command.run!("/bin/rm", args: ["-f", "--", service], sudo: with_sudo)
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sleep 1
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end
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end
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end
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def running_processes(bundle_id)
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system_command!("/bin/launchctl", args: ["list"])
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.stdout.lines
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.map { |line| line.chomp.split("\t") }
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.map { |pid, state, id| [pid.to_i, state.to_i, id] }
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.select do |(pid, _, id)|
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pid.nonzero? && id.match?(/^#{Regexp.escape(bundle_id)}($|\.\d+)/)
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end
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end
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def automation_access_instructions
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"Enable Automation Access for “Terminal > System Events” in " \
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"“System Preferences > Security > Privacy > Automation” if you haven't already."
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end
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# :quit/:signal must come before :kext so the kext will not be in use by a running process
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def uninstall_quit(*bundle_ids, command: nil, **_)
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bundle_ids.each do |bundle_id|
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next unless running?(bundle_id)
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unless User.current.gui?
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opoo "Not logged into a GUI; skipping quitting application ID '#{bundle_id}'."
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next
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end
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ohai "Quitting application '#{bundle_id}'..."
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begin
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Timeout.timeout(10) do
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Kernel.loop do
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next unless quit(bundle_id).success?
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next if running?(bundle_id)
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puts "Application '#{bundle_id}' quit successfully."
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break
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end
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end
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rescue Timeout::Error
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opoo "Application '#{bundle_id}' did not quit. #{automation_access_instructions}"
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end
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end
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end
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def running?(bundle_id)
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script = <<~JAVASCRIPT
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'use strict';
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ObjC.import('stdlib')
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function run(argv) {
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try {
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var app = Application(argv[0])
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if (app.running()) {
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$.exit(0)
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}
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} catch (err) { }
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$.exit(1)
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}
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JAVASCRIPT
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system_command("osascript", args: ["-l", "JavaScript", "-e", script, bundle_id],
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print_stderr: true).status.success?
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end
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def quit(bundle_id)
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script = <<~JAVASCRIPT
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'use strict';
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ObjC.import('stdlib')
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function run(argv) {
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var app = Application(argv[0])
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try {
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app.quit()
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} catch (err) {
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if (app.running()) {
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$.exit(1)
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}
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}
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$.exit(0)
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}
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JAVASCRIPT
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system_command "osascript", args: ["-l", "JavaScript", "-e", script, bundle_id],
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print_stderr: false
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end
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private :quit
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# :signal should come after :quit so it can be used as a backup when :quit fails
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def uninstall_signal(*signals, command: nil, **_)
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signals.each do |pair|
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raise CaskInvalidError.new(cask, "Each #{stanza} :signal must consist of 2 elements.") unless pair.size == 2
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signal, bundle_id = pair
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ohai "Signalling '#{signal}' to application ID '#{bundle_id}'"
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pids = running_processes(bundle_id).map(&:first)
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next unless pids.any?
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# Note that unlike :quit, signals are sent from the current user (not
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# upgraded to the superuser). This is a todo item for the future, but
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# there should be some additional thought/safety checks about that, as a
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# misapplied "kill" by root could bring down the system. The fact that we
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# learned the pid from AppleScript is already some degree of protection,
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# though indirect.
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odebug "Unix ids are #{pids.inspect} for processes with bundle identifier #{bundle_id}"
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Process.kill(signal, *pids)
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sleep 3
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end
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end
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def uninstall_login_item(*login_items, command: nil, upgrade: false, **_)
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return if upgrade
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apps = cask.artifacts.select { |a| a.class.dsl_key == :app }
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derived_login_items = apps.map { |a| { path: a.target } }
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[*derived_login_items, *login_items].each do |item|
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type, id = if item.respond_to?(:key) && item.key?(:path)
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["path", item[:path]]
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else
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["name", item]
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end
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ohai "Removing login item #{id}"
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result = system_command(
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"osascript",
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args: [
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"-e",
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%Q(tell application "System Events" to delete every login item whose #{type} is #{id.to_s.inspect}),
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],
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)
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opoo "Removal of login item #{id} failed. #{automation_access_instructions}" unless result.success?
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sleep 1
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end
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end
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# :kext should be unloaded before attempting to delete the relevant file
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def uninstall_kext(*kexts, command: nil, **_)
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kexts.each do |kext|
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ohai "Unloading kernel extension #{kext}"
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is_loaded = system_command!("/usr/sbin/kextstat", args: ["-l", "-b", kext], sudo: true).stdout
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if is_loaded.length > 1
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system_command!("/sbin/kextunload", args: ["-b", kext], sudo: true)
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sleep 1
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end
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system_command!("/usr/sbin/kextfind", args: ["-b", kext], sudo: true).stdout.chomp.lines.each do |kext_path|
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ohai "Removing kernel extension #{kext_path}"
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system_command!("/bin/rm", args: ["-rf", kext_path], sudo: true)
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end
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end
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end
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# :script must come before :pkgutil, :delete, or :trash so that the script file is not already deleted
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def uninstall_script(directives, directive_name: :script, force: false, command: nil, **_)
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# TODO: Create a common `Script` class to run this and Artifact::Installer.
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executable, script_arguments = self.class.read_script_arguments(directives,
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"uninstall",
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{ must_succeed: true, sudo: false },
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{ print_stdout: true },
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directive_name)
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ohai "Running uninstall script #{executable}"
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raise CaskInvalidError.new(cask, "#{stanza} :#{directive_name} without :executable.") if executable.nil?
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executable_path = staged_path_join_executable(executable)
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if (executable_path.absolute? && !executable_path.exist?) ||
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(!executable_path.absolute? && (which executable_path).nil?)
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message = "uninstall script #{executable} does not exist"
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raise CaskError, "#{message}." unless force
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opoo "#{message}, skipping."
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return
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end
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command.run(executable_path, script_arguments)
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sleep 1
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end
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def uninstall_pkgutil(*pkgs, command: nil, **_)
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ohai "Uninstalling packages:"
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pkgs.each do |regex|
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::Cask::Pkg.all_matching(regex, command).each do |pkg|
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puts pkg.package_id
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pkg.uninstall
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end
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end
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end
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def each_resolved_path(action, paths)
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return enum_for(:each_resolved_path, action, paths) unless block_given?
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paths.each do |path|
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resolved_path = Pathname.new(path)
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resolved_path = resolved_path.expand_path if path.to_s.start_with?("~")
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if resolved_path.relative? || resolved_path.split.any? { |part| part.to_s == ".." }
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opoo "Skipping #{Formatter.identifier(action)} for relative path '#{path}'."
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next
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end
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if MacOS.undeletable?(resolved_path)
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opoo "Skipping #{Formatter.identifier(action)} for undeletable path '#{path}'."
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next
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end
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yield path, Pathname.glob(resolved_path)
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end
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end
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def uninstall_delete(*paths, command: nil, **_)
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return if paths.empty?
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ohai "Removing files:"
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each_resolved_path(:delete, paths) do |path, resolved_paths|
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puts path
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command.run!(
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"/usr/bin/xargs",
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args: ["-0", "--", "/bin/rm", "-r", "-f", "--"],
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input: resolved_paths.join("\0"),
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sudo: true,
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)
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end
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end
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def uninstall_trash(*paths, **options)
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return if paths.empty?
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resolved_paths = each_resolved_path(:trash, paths).to_a
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ohai "Trashing files:"
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puts resolved_paths.map(&:first)
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trash_paths(*resolved_paths.flat_map(&:last), **options)
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end
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def trash_paths(*paths, command: nil, **_)
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return if paths.empty?
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stdout, stderr, = system_command HOMEBREW_LIBRARY_PATH/"cask/utils/trash.swift",
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args: paths,
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print_stderr: false
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trashed = stdout.split(":").sort
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untrashable = stderr.split(":").sort
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return trashed, untrashable if untrashable.empty?
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untrashable.delete_if do |path|
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Utils.gain_permissions(path, ["-R"], SystemCommand) do
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system_command! HOMEBREW_LIBRARY_PATH/"cask/utils/trash.swift",
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args: [path],
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print_stderr: false
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end
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true
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rescue
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false
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end
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opoo "The following files could not trashed, please do so manually:"
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$stderr.puts untrashable
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[trashed, untrashable]
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end
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def uninstall_rmdir(*directories, command: nil, **_)
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return if directories.empty?
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ohai "Removing directories if empty:"
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each_resolved_path(:rmdir, directories) do |path, resolved_paths|
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puts path
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resolved_paths.select(&:directory?).each do |resolved_path|
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if (ds_store = resolved_path.join(".DS_Store")).exist?
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command.run!("/bin/rm", args: ["-f", "--", ds_store], sudo: true, print_stderr: false)
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end
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command.run("/bin/rmdir", args: ["--", resolved_path], sudo: true, print_stderr: false)
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end
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end
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end
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end
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end
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end
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