AlkantarClanX12
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module Rake
# Same as a regular task, but the immediate prerequisites are done in
# parallel using Ruby threads.
#
class MultiTask < Task
# Same as invoke, but explicitly pass a call chain to detect
# circular dependencies. This is largely copied from Rake::Task
# but has been updated such that if multiple tasks depend on this
# one in parallel, they will all fail if the first execution of
# this task fails.
def invoke_with_call_chain(task_args, invocation_chain)
new_chain = Rake::InvocationChain.append(self, invocation_chain)
@lock.synchronize do
begin
if @already_invoked
if @invocation_exception
if application.options.trace
application.trace "** Previous invocation of #{name} failed #{format_trace_flags}"
end
raise @invocation_exception
else
return
end
end
if application.options.trace
application.trace "** Invoke #{name} #{format_trace_flags}"
end
@already_invoked = true
invoke_prerequisites(task_args, new_chain)
execute(task_args) if needed?
rescue Exception => ex
add_chain_to(ex, new_chain)
@invocation_exception = ex
raise
end
end
end
private
def invoke_prerequisites(task_args, invocation_chain) # :nodoc:
invoke_prerequisites_concurrently(task_args, invocation_chain)
end
end
end