81 lines
1.9 KiB
Ruby
81 lines
1.9 KiB
Ruby
require "json"
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module VagrantPlugins
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module CommandPlugin
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# This is a helper to deal with the plugin state file that Vagrant
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# uses to track what plugins are installed and activated and such.
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class StateFile
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def initialize(path)
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@path = path
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@data = {}
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if @path.exist?
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@data = JSON.parse(@path.read)
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upgrade_v0! if !@data["version"]
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end
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@data["version"] ||= "1"
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@data["installed"] ||= {}
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end
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# Add a plugin that is installed to the state file.
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#
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# @param [String] name The name of the plugin
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def add_plugin(name)
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if !@data["installed"].has_key?(name)
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@data["installed"][name] = {
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"ruby_version" => RUBY_VERSION,
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"vagrant_version" => Vagrant::VERSION,
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}
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end
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save!
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end
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# This returns a list of installed plugins according to the state
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# file. Note that this may _not_ directly match over to actually
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# installed gems.
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#
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# @return [Array<String>]
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def installed_plugins
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@data["installed"]
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end
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# Remove a plugin that is installed from the state file.
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#
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# @param [String] name The name of the plugin.
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def remove_plugin(name)
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@data["installed"].delete(name)
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save!
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end
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# This saves the state back into the state file.
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def save!
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@path.open("w+") do |f|
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f.write(JSON.dump(@data))
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end
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end
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protected
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# This upgrades the internal data representation from V0 (the initial
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# version) to V1.
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def upgrade_v0!
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@data["version"] = "1"
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new_installed = {}
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(@data["installed"] || []).each do |plugin|
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new_installed[plugin] = {
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"ruby_version" => "0",
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"vagrant_version" => "0",
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}
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end
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@data["installed"] = new_installed
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save!
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end
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end
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end
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end
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