I've merge Michael Bishop's "-j"/thread pool pull request into the master
branch and intend to include it in the next release. I've push the current
code base out as Rake 0.9.3.beta.2, so feel free to download it and give it a
try.
I am especially interested in developers running on windows to give the -j
option with multitasks a spin.
Here's a rakefile I used in playing with the -j option. Try rake with
different numbers on the -j option and see how it behaves.
#--Start Rakefile --
#!/usr/bin/ruby -wKU
require 'thread'
$m = Mutex.new
def out(*str)
$m.synchronize do
puts(*str)
end
end
DELAY = 0.1
TASKS = ('a'..'z').map { |prefix| "#{prefix}_task" }
TASKS.each do |name|
desc "#{name} prereq"
subtasks = ('0'..'9').map { |suffix| "#{name}_sub#{suffix}" }
subtasks.each do |name|
task name do
sleep DELAY
end
end
multitask name => subtasks do
sleep DELAY
end
end
multitask :main => TASKS
task :default do
t = Time.now
Rake::Task[:main].invoke
delta = Time.now - t
out "#{delta} seconds have passed"
end
#--End Rakefile --
--
-- Jim Weirich
-- [email protected]
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