1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
require "yaml"
require "open3"
require "stringio"
require "hbc/utils/file"
BUG_REPORTS_URL = "https://github.com/caskroom/homebrew-cask#reporting-bugs".freeze
# monkeypatch Object - not a great idea
class Object
def utf8_inspect
return inspect unless defined?(Encoding)
return map(&:utf8_inspect) if respond_to?(:map)
inspect.force_encoding("UTF-8").sub(/\A"(.*)"\Z/, '\1')
end
end
class Buffer < StringIO
def initialize(tty = false)
super()
@tty = tty
end
def tty?
@tty
end
end
# global methods
def odebug(title, *sput)
return unless Hbc::CLI.debug?
puts Formatter.headline(title, color: :magenta)
puts sput unless sput.empty?
end
module Hbc
module Utils
def self.gain_permissions_remove(path, command: SystemCommand)
if path.respond_to?(:rmtree) && path.exist?
gain_permissions(path, ["-R"], command) do |p|
if p.parent.writable?
p.rmtree
else
command.run("/bin/rm",
args: command_args + ["-r", "-f", "--", p],
sudo: true)
end
end
elsif File.symlink?(path)
gain_permissions(path, ["-h"], command, &FileUtils.method(:rm_f))
end
end
def self.gain_permissions(path, command_args, command)
tried_permissions = false
tried_ownership = false
begin
yield path
rescue StandardError
# in case of permissions problems
unless tried_permissions
# TODO: Better handling for the case where path is a symlink.
# The -h and -R flags cannot be combined, and behavior is
# dependent on whether the file argument has a trailing
# slash. This should do the right thing, but is fragile.
command.run("/usr/bin/chflags",
must_succeed: false,
args: command_args + ["--", "000", path])
command.run("/bin/chmod",
must_succeed: false,
args: command_args + ["--", "u+rwx", path])
command.run("/bin/chmod",
must_succeed: false,
args: command_args + ["-N", path])
tried_permissions = true
retry # rmtree
end
unless tried_ownership
# in case of ownership problems
# TODO: Further examine files to see if ownership is the problem
# before using sudo+chown
ohai "Using sudo to gain ownership of path '#{path}'"
command.run("/usr/sbin/chown",
args: command_args + ["--", current_user, path],
sudo: true)
tried_ownership = true
# retry chflags/chmod after chown
tried_permissions = false
retry # rmtree
end
end
end
def self.current_user
Etc.getpwuid(Process.euid).name
end
def self.path_occupied?(path)
File.exist?(path) || File.symlink?(path)
end
def self.error_message_with_suggestions
<<-EOS.undent
Follow the instructions here:
#{Formatter.url(BUG_REPORTS_URL)}
EOS
end
def self.method_missing_message(method, token, section = nil)
poo = []
poo << "Unexpected method '#{method}' called"
poo << "during #{section}" if section
poo << "on Cask #{token}."
opoo(poo.join(" ") + "\n" + error_message_with_suggestions)
end
def self.nowstamp_metadata_path(container_path)
@timenow ||= Time.now.gmtime
return unless container_path.respond_to?(:join)
precision = 3
timestamp = @timenow.strftime("%Y%m%d%H%M%S")
fraction = format("%.#{precision}f", @timenow.to_f - @timenow.to_i)[1..-1]
timestamp.concat(fraction)
container_path.join(timestamp)
end
end
end
|
