87 lines
3.0 KiB
Ruby
87 lines
3.0 KiB
Ruby
require "thread"
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require "log4r"
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module Vagrant
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module Action
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module Builtin
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# This built-in middleware handles the `box_url` setting, downloading
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# the box if necessary. You should place this early in your middleware
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# sequence for a provider after configuration validation but before
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# you attempt to use any box.
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class HandleBoxUrl
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@@big_lock = Mutex.new
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@@handle_box_url_locks = Hash.new { |h,k| h[k] = Mutex.new }
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def initialize(app, env)
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@app = app
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@logger = Log4r::Logger.new("vagrant::action::builtin::handle_box_url")
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end
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def call(env)
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if !env[:machine].config.vm.box || !env[:machine].config.vm.box_url
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@logger.info("Skipping HandleBoxUrl because box or box_url not set.")
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@app.call(env)
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return
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end
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if !env[:machine].box
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# Get a "big lock" to make sure that our more fine grained
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# lock access is thread safe.
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lock = nil
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@@big_lock.synchronize do
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lock = @@handle_box_url_locks[env[:machine].config.vm.box]
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end
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# We can assume a box URL is set because the Vagrantfile
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# validation should do this for us. If not, though, we do
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# raise a terrible runtime error.
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box_name = env[:machine].config.vm.box
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box_url = env[:machine].config.vm.box_url
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lock.synchronize do
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# First see if we actually have the box now.
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has_box = false
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formats = env[:machine].provider_options[:box_format] ||
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env[:machine].provider_name
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[formats].flatten.each do |format|
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if env[:box_collection].find(box_name, format)
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has_box = true
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break
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end
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end
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if !has_box
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# Add the box then reload the box collection so that it becomes
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# aware of it.
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env[:ui].info I18n.t(
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"vagrant.actions.vm.check_box.not_found",
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:name => box_name,
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:provider => env[:machine].provider_name)
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begin
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env[:action_runner].run(Vagrant::Action.action_box_add, {
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:box_name => box_name,
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:box_provider => env[:machine].provider_name,
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:box_url => box_url
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})
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rescue Errors::BoxAlreadyExists
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# Just ignore this, since it means the next part will succeed!
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# This can happen in a multi-threaded environment.
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end
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end
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end
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# Reload the environment and set the VM to be the new loaded VM.
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env[:machine] = env[:machine].env.machine(
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env[:machine].name, env[:machine].provider_name, true)
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end
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@app.call(env)
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end
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end
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end
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end
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end
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