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Contents
# frozen_string_literal: true
require 'bolt/yarn'
# Map a code block onto an array, where each array element executes in parallel.
# This function is experimental.
#
# > **Note:** Not available in apply block.
Puppet::Functions.create_function(:parallelize, Puppet::Functions::InternalFunction) do
# Map a block onto an array, where each array element executes in parallel.
# This function is experimental.
# @param data The array to apply the block to.
# @return [Array] An array of PlanResult objects. Each input from the input
# array returns a corresponding PlanResult object.
# @example Execute two tasks on two targets.
# $targets = get_targets(["host1", "host2"])
# $result = parallelize ($targets) |$t| {
# run_task('a', $t)
# run_task('b', $t)
# }
dispatch :parallelize do
scope_param
param 'Array[Any]', :data
block_param 'Callable[Any]', :block
return_type 'Array[Boltlib::PlanResult]'
end
def parallelize(scope, data, &block)
unless Puppet[:tasks]
raise Puppet::ParseErrorWithIssue
.from_issue_and_stack(Bolt::PAL::Issues::PLAN_OPERATION_NOT_SUPPORTED_WHEN_COMPILING, action: 'parallelize')
end
executor = Puppet.lookup(:bolt_executor)
executor.report_function_call(self.class.name)
skein = data.each_with_index.map do |object, index|
executor.create_yarn(scope, block, object, index)
end
result = executor.round_robin(skein)
failed_indices = result.each_index.select do |i|
result[i].is_a?(Bolt::Error)
end
# TODO: Inner catch errors block?
if failed_indices.any?
raise Bolt::ParallelFailure.new(result, failed_indices)
end
result
end
end
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10 entries across 10 versions & 1 rubygems