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123 lines
3.6 KiB
Ruby
123 lines
3.6 KiB
Ruby
require "yaml"
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require "open3"
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require "stringio"
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require "hbc/utils/file"
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BUG_REPORTS_URL = "https://github.com/caskroom/homebrew-cask#reporting-bugs".freeze
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# monkeypatch Object - not a great idea
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class Object
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def utf8_inspect
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return inspect unless defined?(Encoding)
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return map(&:utf8_inspect) if respond_to?(:map)
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inspect.force_encoding("UTF-8").sub(/\A"(.*)"\Z/, '\1')
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end
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end
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class Buffer < StringIO
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def initialize(tty = false)
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super()
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@tty = tty
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end
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def tty?
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@tty
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end
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end
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# global methods
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def odebug(title, *sput)
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return unless Hbc::CLI.debug?
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puts Formatter.headline(title, color: :magenta)
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puts sput unless sput.empty?
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end
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module Hbc
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module Utils
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def self.gain_permissions_remove(path, command: SystemCommand)
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if path.respond_to?(:rmtree) && path.exist?
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gain_permissions(path, ["-R"], command, &:rmtree)
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elsif File.symlink?(path)
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gain_permissions(path, ["-h"], command, &FileUtils.method(:rm_f))
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end
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end
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def self.gain_permissions(path, command_args, command)
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tried_permissions = false
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tried_ownership = false
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begin
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yield path
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rescue StandardError
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# in case of permissions problems
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unless tried_permissions
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# TODO: Better handling for the case where path is a symlink.
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# The -h and -R flags cannot be combined, and behavior is
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# dependent on whether the file argument has a trailing
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# slash. This should do the right thing, but is fragile.
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command.run("/usr/bin/chflags",
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must_succeed: false,
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args: command_args + ["--", "000", path])
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command.run("/bin/chmod",
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must_succeed: false,
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args: command_args + ["--", "u+rwx", path])
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command.run("/bin/chmod",
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must_succeed: false,
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args: command_args + ["-N", path])
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tried_permissions = true
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retry # rmtree
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end
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unless tried_ownership
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# in case of ownership problems
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# TODO: Further examine files to see if ownership is the problem
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# before using sudo+chown
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ohai "Using sudo to gain ownership of path '#{path}'"
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command.run("/usr/sbin/chown",
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args: command_args + ["--", current_user, path],
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sudo: true)
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tried_ownership = true
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# retry chflags/chmod after chown
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tried_permissions = false
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retry # rmtree
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end
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end
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end
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def self.current_user
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Etc.getpwuid(Process.euid).name
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end
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def self.path_occupied?(path)
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File.exist?(path) || File.symlink?(path)
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end
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def self.error_message_with_suggestions
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<<-EOS.undent
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Follow the instructions here:
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#{Formatter.url(BUG_REPORTS_URL)}
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EOS
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end
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def self.method_missing_message(method, token, section = nil)
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poo = []
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poo << "Unexpected method '#{method}' called"
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poo << "during #{section}" if section
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poo << "on Cask #{token}."
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opoo(poo.join(" ") + "\n" + error_message_with_suggestions)
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end
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def self.nowstamp_metadata_path(container_path)
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@timenow ||= Time.now.gmtime
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return unless container_path.respond_to?(:join)
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precision = 3
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timestamp = @timenow.strftime("%Y%m%d%H%M%S")
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fraction = format("%.#{precision}f", @timenow.to_f - @timenow.to_i)[1..-1]
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timestamp.concat(fraction)
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container_path.join(timestamp)
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end
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end
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end
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