350 lines
13 KiB
Ruby
350 lines
13 KiB
Ruby
#-- encoding: UTF-8
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#-- copyright
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# ChiliProject is a project management system.
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#
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# See doc/COPYRIGHT.rdoc for more details.
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#++
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module Redmine #:nodoc:
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class PluginError < StandardError
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attr_reader :plugin_id
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def initialize(plug_id=nil)
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super
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@plugin_id = plug_id
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end
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end
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class PluginNotFound < PluginError
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def to_s
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"Missing the plugin #{@plugin_id}"
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end
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end
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class PluginCircularDependency < PluginError
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def to_s
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"Circular plugin dependency in #{@plugin_id}"
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end
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end
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class PluginRequirementError < PluginError; end
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# Base class for Redmine plugins.
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# Plugins are registered using the <tt>register</tt> class method that acts as the public constructor.
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#
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# Redmine::Plugin.register :example do
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# name 'Example plugin'
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# author 'John Smith'
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# description 'This is an example plugin for Redmine'
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# version '0.0.1'
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# settings :default => {'foo'=>'bar'}, :partial => 'settings/settings'
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# end
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#
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# === Plugin attributes
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#
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# +settings+ is an optional attribute that let the plugin be configurable.
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# It must be a hash with the following keys:
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# * <tt>:default</tt>: default value for the plugin settings
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# * <tt>:partial</tt>: path of the configuration partial view, relative to the plugin <tt>app/views</tt> directory
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# Example:
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# settings :default => {'foo'=>'bar'}, :partial => 'settings/settings'
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# In this example, the settings partial will be found here in the plugin directory: <tt>app/views/settings/_settings.rhtml</tt>.
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#
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# When rendered, the plugin settings value is available as the local variable +settings+
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class Plugin
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@registered_plugins = ActiveSupport::OrderedHash.new
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@deferred_plugins = {}
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class << self
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attr_reader :registered_plugins, :deferred_plugins
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private :new
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def def_field(*names)
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class_eval do
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names.each do |name|
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define_method(name) do |*args|
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args.empty? ? instance_variable_get("@#{name}") : instance_variable_set("@#{name}", *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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end
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def_field :name, :description, :url, :author, :author_url, :version, :settings
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attr_reader :id
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# Plugin constructor
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def self.register(id, &block)
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id = id.to_sym
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p = new(id)
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p.instance_eval(&block)
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# Set a default name if it was not provided during registration
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p.name(id.to_s.humanize) if p.name.nil?
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# Adds plugin locales if any
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# YAML translation files should be found under <plugin>/config/locales/
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::I18n.load_path += Dir.glob(File.join(RAILS_ROOT, 'vendor', 'plugins', id.to_s, 'config', 'locales', '*.yml'))
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registered_plugins[id] = p
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# If there are plugins waiting for us to be loaded, we try loading those, again
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if deferred_plugins[id]
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deferred_plugins[id].each do |ary|
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plugin_id, block = ary
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register(plugin_id, &block)
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end
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deferred_plugins.delete(id)
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end
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return p
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rescue PluginNotFound => e
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# find circular dependencies
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raise PluginCircularDependency.new(id) if self.dependencies_for(e.plugin_id).include?(id)
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if RedminePluginLocator.instance.has_plugin? e.plugin_id
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# The required plugin is going to be loaded later, defer loading this plugin
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(deferred_plugins[e.plugin_id] ||= []) << [id, block]
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return p
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else
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raise
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end
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end
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# returns an array of all dependencies we know of for plugin id
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# (might not be complete at all times!)
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def self.dependencies_for(id)
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direct_deps = deferred_plugins.keys.find_all{|k| deferred_plugins[k].collect(&:first).include?(id)}
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direct_deps.inject([]) {|deps,v| deps << v; deps += self.dependencies_for(v)}
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end
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# Returns an array of all registered plugins
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def self.all
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registered_plugins.values
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end
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# Finds a plugin by its id
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# Returns a PluginNotFound exception if the plugin doesn't exist
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def self.find(id)
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registered_plugins[id.to_sym] || raise(PluginNotFound.new(id.to_sym))
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end
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# Clears the registered plugins hash
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# It doesn't unload installed plugins
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def self.clear
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@registered_plugins = {}
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end
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# Checks if a plugin is installed
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#
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# @param [String] id name of the plugin
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def self.installed?(id)
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registered_plugins[id.to_sym].present?
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end
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def initialize(id)
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@id = id.to_sym
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end
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def <=>(plugin)
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self.id.to_s <=> plugin.id.to_s
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end
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# Sets a requirement on the ChiliProject version.
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# Raises a PluginRequirementError exception if the requirement is not met.
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#
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# It uses the same syntax as rubygems requirements.
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# Examples
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# # Requires exactly ChiliProject 1.1.1
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# requires_chiliproject "1.1.1"
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# requires_chiliproject "= 1.1.1"
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# # Requires ChiliProject 1.1.x
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# requires_chiliproject "~> 1.1.0"
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# # Requires ChiliProject between 1.1.0 and 1.1.5 or higher
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# requires_chiliproject ">= 1.1.0", "<= 1.1.5"
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def requires_chiliproject(*args)
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required_version = Gem::Requirement.new(*args)
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chili_version = Gem::Version.new(ChiliProject::VERSION.to_semver)
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unless required_version.satisfied_by? chili_version
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raise PluginRequirementError.new("#{id} plugin requires ChiliProject version #{required_version} but current version is #{chili_version}.")
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end
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true
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end
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# Sets a requirement on Redmine version.
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# Raises a PluginRequirementError exception if the requirement is not met
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#
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# THIS IS A REDMINE COMPATIBILITY INTERFACE
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#
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# Examples
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# # Requires Redmine 0.7.3 or higher
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# requires_redmine :version_or_higher => '0.7.3'
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# requires_redmine '0.7.3'
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#
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# # Requires a specific Redmine version
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# requires_redmine :version => '0.7.3' # 0.7.3 only
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# requires_redmine :version => ['0.7.3', '0.8.0'] # 0.7.3 or 0.8.0
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def requires_redmine(arg)
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arg = { :version_or_higher => arg } unless arg.is_a?(Hash)
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arg.assert_valid_keys(:version, :version_or_higher)
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current = Redmine::VERSION.to_a
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arg.each do |k, v|
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v = [] << v unless v.is_a?(Array)
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versions = v.collect {|s| s.split('.').collect(&:to_i)}
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case k
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when :version_or_higher
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raise ArgumentError.new("wrong number of versions (#{versions.size} for 1)") unless versions.size == 1
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unless (current <=> versions.first) >= 0
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raise PluginRequirementError.new("#{id} plugin requires Redmine #{v} or higher but current is #{current.join('.')}")
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end
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when :version
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unless versions.include?(current.slice(0,3))
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raise PluginRequirementError.new("#{id} plugin requires one the following Redmine versions: #{v.join(', ')} but current is #{current.join('.')}")
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end
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end
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end
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true
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end
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# Sets a requirement on a Redmine plugin version
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# Raises a PluginRequirementError exception if the requirement is not met
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#
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# Examples
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# # Requires a plugin named :foo version 0.7.3 or higher
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# requires_redmine_plugin :foo, :version_or_higher => '0.7.3'
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# requires_redmine_plugin :foo, '0.7.3'
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#
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# # Requires a specific version of a Redmine plugin
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# requires_redmine_plugin :foo, :version => '0.7.3' # 0.7.3 only
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# requires_redmine_plugin :foo, :version => ['0.7.3', '0.8.0'] # 0.7.3 or 0.8.0
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def requires_redmine_plugin(plugin_name, arg)
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arg = { :version_or_higher => arg } unless arg.is_a?(Hash)
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arg.assert_valid_keys(:version, :version_or_higher)
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plugin = Plugin.find(plugin_name)
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current = plugin.version.split('.').collect(&:to_i)
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arg.each do |k, v|
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v = [] << v unless v.is_a?(Array)
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versions = v.collect {|s| s.split('.').collect(&:to_i)}
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case k
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when :version_or_higher
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raise ArgumentError.new("wrong number of versions (#{versions.size} for 1)") unless versions.size == 1
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unless (current <=> versions.first) >= 0
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raise PluginRequirementError.new("#{id} plugin requires the #{plugin_name} plugin #{v} or higher but current is #{current.join('.')}")
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end
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when :version
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unless versions.include?(current.slice(0,3))
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raise PluginRequirementError.new("#{id} plugin requires one the following versions of #{plugin_name}: #{v.join(', ')} but current is #{current.join('.')}")
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end
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end
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end
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true
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end
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# Adds an item to the given +menu+.
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# The +id+ parameter (equals to the project id) is automatically added to the url.
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# menu :project_menu, :plugin_example, { :controller => 'example', :action => 'say_hello' }, :caption => 'Sample'
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#
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# +name+ parameter can be: :top_menu, :account_menu, :application_menu or :project_menu
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#
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def menu(menu, item, url, options={})
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Redmine::MenuManager.map(menu).push(item, url, options)
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end
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alias :add_menu_item :menu
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# Removes +item+ from the given +menu+.
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def delete_menu_item(menu, item)
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Redmine::MenuManager.map(menu).delete(item)
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end
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# Defines a permission called +name+ for the given +actions+.
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#
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# The +actions+ argument is a hash with controllers as keys and actions as values (a single value or an array):
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# permission :destroy_contacts, { :contacts => :destroy }
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# permission :view_contacts, { :contacts => [:index, :show] }
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#
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# The +options+ argument can be used to make the permission public (implicitly given to any user)
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# or to restrict users the permission can be given to.
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#
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# Examples
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# # A permission that is implicitly given to any user
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# # This permission won't appear on the Roles & Permissions setup screen
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# permission :say_hello, { :example => :say_hello }, :public => true
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#
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# # A permission that can be given to any user
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# permission :say_hello, { :example => :say_hello }
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#
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# # A permission that can be given to registered users only
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# permission :say_hello, { :example => :say_hello }, :require => :loggedin
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#
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# # A permission that can be given to project members only
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# permission :say_hello, { :example => :say_hello }, :require => :member
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def permission(name, actions, options = {})
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if @project_module
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Redmine::AccessControl.map {|map| map.project_module(@project_module) {|map|map.permission(name, actions, options)}}
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else
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Redmine::AccessControl.map {|map| map.permission(name, actions, options)}
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end
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end
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# Defines a project module, that can be enabled/disabled for each project.
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# Permissions defined inside +block+ will be bind to the module.
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#
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# project_module :things do
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# permission :view_contacts, { :contacts => [:list, :show] }, :public => true
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# permission :destroy_contacts, { :contacts => :destroy }
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# end
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def project_module(name, &block)
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@project_module = name
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self.instance_eval(&block)
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@project_module = nil
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end
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# Registers an activity provider.
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#
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# Options:
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# * <tt>:class_name</tt> - one or more model(s) that provide these events (inferred from event_type by default)
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# * <tt>:default</tt> - setting this option to false will make the events not displayed by default
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#
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# A model can provide several activity event types.
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#
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# Examples:
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# register :news
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# register :scrums, :class_name => 'Meeting'
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# register :issues, :class_name => ['Issue', 'Journal']
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#
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# Retrieving events:
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# Associated model(s) must implement the find_events class method.
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# ActiveRecord models can use acts_as_activity_provider as a way to implement this class method.
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#
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# The following call should return all the scrum events visible by current user that occured in the 5 last days:
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# Meeting.find_events('scrums', User.current, 5.days.ago, Date.today)
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# Meeting.find_events('scrums', User.current, 5.days.ago, Date.today, :project => foo) # events for project foo only
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#
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# Note that :view_scrums permission is required to view these events in the activity view.
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def activity_provider(*args)
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Redmine::Activity.register(*args)
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end
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# Registers a wiki formatter.
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#
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# Parameters:
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# * +name+ - human-readable name
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# * +formatter+ - formatter class, which should have an instance method +to_html+
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# * +helper+ - helper module, which will be included by wiki pages
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def wiki_format_provider(name, formatter, helper)
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Redmine::WikiFormatting.register(name, formatter, helper)
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end
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# Returns +true+ if the plugin can be configured.
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def configurable?
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settings && settings.is_a?(Hash) && !settings[:partial].blank?
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end
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end
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end
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