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# Copyright 2009 Max Howell and other contributors.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# args are additional inputs to puts until a nil arg is encountered
def ohai title, *args
return if args.length > 0 and args[0].nil?
n=`tput cols`.strip.to_i-4
puts "\033[0;34m==>\033[0;0;1m #{title[0,n]}\033[0;0m"
args.each do |arg|
return if arg.nil?
puts arg
end
end
# shows a warning in delicious pink
def opoo warning
puts "\033[1;35m==>\033[0;0;1m Warning\033[0;0m: #{warning}"
end
def onoe error
puts "\033[1;31m==>\033[0;0;1m Error\033[0;0m: #{error}"
end
def pretty_duration s
return "#{(s*1000).to_i} milliseconds" if s < 3
return "#{s.to_i} seconds" if s < 10*60
return "#{(s/60).to_i} minutes"
end
def interactive_shell
pid=fork
exec ENV['SHELL'] if pid.nil?
Process.wait pid
raise SystemExit, "Aborting due to non-zero exit status" if $? != 0
end
# Kernel.system but with exceptions
def safe_system cmd, *args
puts "#{cmd} #{args*' '}" if ARGV.verbose?
execd=Kernel.system cmd, *args
# somehow Ruby doesn't handle the CTRL-C from another process -- WTF!?
raise Interrupt, cmd if $?.termsig == 2
raise ExecutionError.new(cmd, args) unless execd and $? == 0
end
def curl url, *args
safe_system 'curl', '-f#LA', HOMEBREW_USER_AGENT, url, *args
end
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