50 lines
1.6 KiB
Ruby
50 lines
1.6 KiB
Ruby
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module Tasks
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module Zammad
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# Base class for CLI commands in Zammad.
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# Rake is not intended for a real CLI style usage, that is why we need
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# to apply some workarounds here.
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class Command
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# Infer the rake task name from the class name.
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def self.task_name
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name.downcase.gsub('::', ':').sub('tasks:', '').to_sym
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end
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# Override this if the task needs additional arguments.
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# Currently only a fixed number of arguments is supported.
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ARGUMENT_COUNT = 0
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def self.usage
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"Usage: bundle exec rails #{task_name}"
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end
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def self.register_rake_task
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Rake::Task.define_task task_name => :environment do
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run_task
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end
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end
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def self.run_task
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validate_comandline
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task_handler
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rescue => e
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# A bit more user friendly than plain Rake.
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Rails.logger.error e
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abort "Error: #{e.message}"
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end
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# Prevent the execution of multiple commands at once (mostly because of codebase
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# self-modification in 'zammad:package:install').
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# Enforce the correct number of expected arguments.
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def self.validate_comandline
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if ARGV.first.eql?(task_name) || ARGV.count != (const_get(:ARGUMENT_COUNT) + 1)
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abort "Error: wrong number of arguments given.\n#{usage}"
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end
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# Rake will try to run additional arguments as tasks, so make sure nothing happens for these.
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ARGV[1..].each { |a| Rake::Task.define_task(a.to_sym => :environment) do; end } # rubocop:disable Style/BlockDelimiters
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end
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end
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end
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end
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