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hellspawn.rb
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hellspawn.rb
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class Hellspawn
def self.legion(options)
Legion.new(options)
end
class Legion < Array
def initialize(options)
@options = options
end
def log_dir
@options[:log_dir]
end
def march!
FileUtils.rm_rf(@options[:base])
FileUtils.mkdir_p(log_dir) if log_dir
each {|daemon| daemon.march!(@options[:base], log_dir)}
end
def summon(options)
by_flag = options.delete :by_flag
if by_flag
by_flag[1].each do |value|
new_options = options.dup
new_options[:flags] = options[:flags].dup || {}
new_options[:flags][by_flag[0]] = value
new_options[:name] = options[:name] + "_" + value.to_s
self << Daemon.new(new_options)
end
else
self << Daemon.new(options)
end
end
class Daemon < Hash
def initialize(options)
replace options
end
def name
self[:name]
end
def march!(base, log_dir = nil)
FileUtils.mkdir_p File.join(base, name)
File.open(File.join(base, name, "run"), "w+") do |f|
f.puts run_prep
f.puts run_script
end
if log_dir
FileUtils.mkdir_p File.join(base, name, 'log')
File.open(File.join(base, name,'log', "run"), "w+") do |f|
f.puts log_script(log_dir)
end
end
end
def run_script
"exec #{dt_options}#{self[:executable]} " + flag_snippet
end
def flag_snippet
self[:flags].map{|k,v| k + " " + v.to_s}.join(" ")
end
def log_script log_dir
"exec multilog #{log_dir}/#{self[:name]}.log"
end
def run_prep
"exec 2&>1"
end
def dt_options
parts = []
parts << "softlimit #{self[:memory_limit_mb] * 1024} " if self[:memory_limit_mb]
parts.join("")
end
end
end
end