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require 'rainbow/ext/string'
require 'gitlab/utils/strong_memoize'
module Gitlab
TaskFailedError = Class.new(StandardError)
TaskAbortedByUserError = Class.new(StandardError)
module TaskHelpers
include Gitlab::Utils::StrongMemoize
extend self
# Ask if the user wants to continue
#
# Returns "yes" the user chose to continue
# Raises Gitlab::TaskAbortedByUserError if the user chose *not* to continue
def ask_to_continue
answer = prompt("Do you want to continue (yes/no)? ".color(:blue), %w{yes no})
raise Gitlab::TaskAbortedByUserError unless answer == "yes"
end
# Check which OS is running
#
# It will primarily use lsb_relase to determine the OS.
# It has fallbacks to Debian, SuSE, OS X and systems running systemd.
def os_name
os_name = run_command(%w(lsb_release -irs))
os_name ||=
if File.readable?('/etc/system-release')
File.read('/etc/system-release')
elsif File.readable?('/etc/debian_version')
"Debian #{File.read('/etc/debian_version')}"
elsif File.readable?('/etc/SuSE-release')
File.read('/etc/SuSE-release')
elsif os_x_version = run_command(%w(sw_vers -productVersion))
"Mac OS X #{os_x_version}"
elsif File.readable?('/etc/os-release')
File.read('/etc/os-release').match(/PRETTY_NAME=\"(.+)\"/)[1]
end
os_name.try(:squish!)
end
# Prompt the user to input something
#
# message - the message to display before input
# choices - array of strings of acceptable answers or nil for any answer
#
# Returns the user's answer
def prompt(message, choices = nil)
begin
print(message)
answer = STDIN.gets.chomp
end while choices.present? && !choices.include?(answer)
answer
end
# Runs the given command and matches the output against the given pattern
#
# Returns nil if nothing matched
# Returns the MatchData if the pattern matched
#
# see also #run_command
# see also String#match
def run_and_match(command, regexp)
run_command(command).try(:match, regexp)
end
# Runs the given command
#
# Returns '' if the command was not found
# Returns the output of the command otherwise
#
# see also #run_and_match
def run_command(command)
output, _ = Gitlab::Popen.popen(command)
output
rescue Errno::ENOENT
'' # if the command does not exist, return an empty string
end
# Runs the given command and raises a Gitlab::TaskFailedError exception if
# the command does not exit with 0
#
# Returns the output of the command otherwise
def run_command!(command)
output, status = Gitlab::Popen.popen(command)
raise Gitlab::TaskFailedError.new(output) unless status.zero?
output
end
def uid_for(user_name)
run_command(%W(id -u #{user_name})).chomp.to_i
end
def gid_for(group_name)
begin
Etc.getgrnam(group_name).gid
rescue ArgumentError # no group
"group #{group_name} doesn't exist"
end
end
def gitlab_user
Gitlab.config.gitlab.user
end
def gitlab_user?
strong_memoize(:is_gitlab_user) do
current_user = run_command(%w(whoami)).chomp
current_user == gitlab_user
end
end
def warn_user_is_not_gitlab
return if gitlab_user?
strong_memoize(:warned_user_not_gitlab) do
current_user = run_command(%w(whoami)).chomp
puts " Warning ".color(:black).background(:yellow)
puts " You are running as user #{current_user.color(:magenta)}, we hope you know what you are doing."
puts " Things may work\/fail for the wrong reasons."
puts " For correct results you should run this as user #{gitlab_user.color(:magenta)}."
puts ""
end
end
def all_repos
Gitlab.config.repositories.storages.each_value do |repository_storage|
IO.popen(%W(find #{repository_storage['path']} -mindepth 2 -maxdepth 2 -type d -name *.git)) do |find|
find.each_line do |path|
yield path.chomp
end
end
end
end
def repository_storage_paths_args
Gitlab.config.repositories.storages.values.map { |rs| rs['path'] }
end
def user_home
Rails.env.test? ? Rails.root.join('tmp/tests') : Gitlab.config.gitlab.user_home
end
def checkout_or_clone_version(version:, repo:, target_dir:)
version =
if version.starts_with?("=")
version.sub(/\A=/, '') # tag or branch
else
"v#{version}" # tag
end
clone_repo(repo, target_dir) unless Dir.exist?(target_dir)
checkout_version(version, target_dir)
end
def clone_repo(repo, target_dir)
run_command!(%W[#{Gitlab.config.git.bin_path} clone -- #{repo} #{target_dir}])
end
def checkout_version(version, target_dir)
run_command!(%W[#{Gitlab.config.git.bin_path} -C #{target_dir} fetch --quiet origin #{version}])
run_command!(%W[#{Gitlab.config.git.bin_path} -C #{target_dir} checkout -f --quiet FETCH_HEAD --])
end
end
end
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