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|
module Hbc::Utils; end
require "yaml"
require "open3"
require "stringio"
require "hbc/utils/file"
UPDATE_CMD = "brew uninstall --force brew-cask; brew untap phinze/cask; brew untap caskroom/cask; brew update; brew cleanup; brew cask cleanup".freeze
ISSUES_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(%r{\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)
if Hbc.respond_to?(:debug) && Hbc.debug
width = Tty.width * 4 - 6
if $stdout.tty? && title.to_s.length > width
title = title.to_s[0, width - 3] + "..."
end
puts "#{Tty.magenta}==>#{Tty.reset} #{Tty.white}#{title}#{Tty.reset}"
puts sput unless sput.empty?
end
end
module Hbc::Utils
def self.which(cmd, path = ENV["PATH"])
unless File.basename(cmd) == cmd.to_s
# cmd contains a directory element
cmd_pn = Pathname(cmd)
return nil unless cmd_pn.absolute?
return resolve_executable(cmd_pn)
end
path.split(File::PATH_SEPARATOR).each do |elt|
fq_cmd = Pathname(elt).expand_path.join(cmd)
resolved = resolve_executable fq_cmd
return resolved if resolved
end
nil
end
def self.resolve_executable(cmd)
cmd_pn = Pathname(cmd)
return nil unless cmd_pn.exist?
return nil unless cmd_pn.executable?
begin
cmd_pn = Pathname(cmd_pn.realpath)
rescue RuntimeError
return nil
end
return nil unless cmd_pn.file?
cmd_pn
end
def self.gain_permissions_remove(path, command: Hbc::SystemCommand)
if path.respond_to?(:rmtree) && path.exist?
gain_permissions(path, ["-R"], command, &:rmtree)
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
# paths that "look" descendant (textually) will still
# return false unless both the given paths exist
def self.file_is_descendant(file, dir)
file = Pathname.new(file)
dir = Pathname.new(dir)
return false unless file.exist? && dir.exist?
unless dir.directory?
onoe "Argument must be a directory: '#{dir}'"
return false
end
unless file.absolute? && dir.absolute?
onoe "Both arguments must be absolute: '#{file}', '#{dir}'"
return false
end
while file.parent != file
return true if File.identical?(file, dir)
file = file.parent
end
false
end
def self.path_occupied?(path)
File.exist?(path) || File.symlink?(path)
end
def self.error_message_with_suggestions
<<-EOS.undent
Most likely, this means you have an outdated version of Homebrew-Cask. Please run:
#{Tty.green}#{UPDATE_CMD}
#{Tty.reset}If this doesn’t fix the problem, please report this bug:
#{Tty.em}#{ISSUES_URL}#{Tty.reset}
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
if 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
def self.size_in_bytes(files)
Array(files).reduce(0) { |a, e| a + (File.size?(e) || 0) }
end
def self.capture_stderr
previous_stderr = $stderr
$stderr = StringIO.new
yield
$stderr.string
ensure
$stderr = previous_stderr
end
end
|
