Josh Holtrop
b882f8de99
The builder's #run method will be called repeatedly until it returns true or false. The Builder#wait_for method can be used to cause a builder to wait for a Thread, Command, or another Builder.
67 lines
1.9 KiB
Ruby
67 lines
1.9 KiB
Ruby
module Rscons
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# Class to keep track of system commands that builders need to execute.
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# Rscons will manage scheduling these commands to be run in separate threads.
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class Command
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# @return [Builder]
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# {Builder} executing this command.
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attr_reader :builder
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# @return [Array<String>]
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# The command to execute.
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attr_reader :command
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# @return [nil, true, false]
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# true if the command gives zero exit status.
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# false if the command gives non-zero exit status.
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# nil if command execution fails.
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attr_accessor :status
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# @return [Hash]
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# Environment Hash to pass to Kernel#system.
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attr_reader :system_env
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# @return [Hash]
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# Options Hash to pass to Kernel#system.
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attr_reader :system_options
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# @return [Thread]
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# The thread waiting on this command to terminate.
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attr_reader :thread
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# Create a ThreadedCommand object.
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#
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# @param command [Array<String>]
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# The command to execute.
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# @param builder [Builder]
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# The {Builder} executing this command.
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# @param options [Hash]
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# Optional parameters.
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# @option options [Hash] :system_env
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# Environment Hash to pass to Kernel#system.
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# @option options [Hash] :system_options
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# Options Hash to pass to Kernel#system.
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def initialize(command, builder, options = {})
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@command = command
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@builder = builder
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@system_env = options[:system_env]
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@system_options = options[:system_options]
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end
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# Start a thread to run the command.
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#
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# @return [Thread]
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# The Thread created to run the command.
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def run
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env_args = @system_env ? [@system_env] : []
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options_args = @system_options ? [@system_options] : []
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system_args = [*env_args, *Rscons.command_executer, *@command, *options_args]
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@thread = Thread.new do
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system(*system_args)
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end
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end
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end
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end
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