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require 'optparse'
if RUBY_PLATFORM =~ /mswin32/ then abort("Reaper is only for Unix") end
OPTIONS = {
:pid_path => File.expand_path(RAILS_ROOT + '/tmp/pids'),
:pattern => "dispatch.*.pid",
:ps => "ps -o user,start,etime,pcpu,vsz,majflt,command -p %s"
}
class Inspector
def self.inspect(pid_path, pattern)
new(pid_path, pattern).inspect
end
def initialize(pid_path, pattern)
@pid_path, @pattern = pid_path, pattern
end
def inspect
for process in find_processes
puts "#{File.basename(process[:pid_file])}:"
puts(`#{OPTIONS[:ps] % process[:pid]}`)
puts
end
end
private
def find_processes
pid_files.inject([]) do |pids, pid_file|
pids << { :pid_file => pid_file, :pid => File.read(pid_file).to_i }
end
end
def pid_files
Dir.glob(@pid_path + "/" + @pattern)
end
end
ARGV.options do |opts|
opts.banner = "Usage: inspector [options]"
opts.separator ""
opts.on <<-EOF
Description:
Get the lowdown on processes.
Examples:
inspector
inspector -s 'ps -o user,start,majflt,pcpu,vsz -p %s'
EOF
opts.on(" Options:")
opts.on("-s", "--ps=command", "default: #{OPTIONS[:ps]}", String) { |OPTIONS[:ps]| }
opts.on("-p", "--pidpath=path", "default: #{OPTIONS[:pid_path]}", String) { |OPTIONS[:pid_path]| }
opts.on("-r", "--pattern=pattern", "default: #{OPTIONS[:pattern]}", String) { |OPTIONS[:pattern]| }
opts.separator ""
opts.on("-h", "--help", "Show this help message.") { puts opts; exit }
opts.parse!
end
Inspector.inspect(OPTIONS[:pid_path], OPTIONS[:pattern])
|
