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1 | 1 | # Redmine - project management software |
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2 | 2 | # Copyright (C) 2006-2012 Jean-Philippe Lang |
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3 | 3 | # |
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4 | 4 | # This program is free software; you can redistribute it and/or |
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5 | 5 | # modify it under the terms of the GNU General Public License |
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6 | 6 | # as published by the Free Software Foundation; either version 2 |
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7 | 7 | # of the License, or (at your option) any later version. |
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8 | 8 | # |
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9 | 9 | # This program is distributed in the hope that it will be useful, |
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10 | 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | 12 | # GNU General Public License for more details. |
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13 | 13 | # |
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14 | 14 | # You should have received a copy of the GNU General Public License |
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15 | 15 | # along with this program; if not, write to the Free Software |
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16 | 16 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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17 | 17 | |
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18 | 18 | module Redmine #:nodoc: |
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19 | 19 | |
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20 | 20 | class PluginNotFound < StandardError; end |
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21 | 21 | class PluginRequirementError < StandardError; end |
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22 | 22 | |
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23 | 23 | # Base class for Redmine plugins. |
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24 | 24 | # Plugins are registered using the <tt>register</tt> class method that acts as the public constructor. |
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25 | 25 | # |
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26 | 26 | # Redmine::Plugin.register :example do |
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27 | 27 | # name 'Example plugin' |
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28 | 28 | # author 'John Smith' |
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29 | 29 | # description 'This is an example plugin for Redmine' |
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30 | 30 | # version '0.0.1' |
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31 | 31 | # settings :default => {'foo'=>'bar'}, :partial => 'settings/settings' |
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32 | 32 | # end |
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33 | 33 | # |
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34 | 34 | # === Plugin attributes |
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35 | 35 | # |
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36 | 36 | # +settings+ is an optional attribute that let the plugin be configurable. |
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37 | 37 | # It must be a hash with the following keys: |
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38 | 38 | # * <tt>:default</tt>: default value for the plugin settings |
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39 | 39 | # * <tt>:partial</tt>: path of the configuration partial view, relative to the plugin <tt>app/views</tt> directory |
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40 | 40 | # Example: |
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41 | 41 | # settings :default => {'foo'=>'bar'}, :partial => 'settings/settings' |
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42 | 42 | # 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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43 | 43 | # |
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44 | 44 | # When rendered, the plugin settings value is available as the local variable +settings+ |
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45 | 45 | class Plugin |
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46 | 46 | cattr_accessor :directory |
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47 | 47 | self.directory = File.join(Rails.root, 'plugins') |
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48 | 48 | |
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49 | 49 | cattr_accessor :public_directory |
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50 | 50 | self.public_directory = File.join(Rails.root, 'public', 'plugin_assets') |
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51 | 51 | |
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52 | 52 | @registered_plugins = {} |
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53 | 53 | class << self |
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54 | 54 | attr_reader :registered_plugins |
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55 | 55 | private :new |
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56 | 56 | |
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57 | 57 | def def_field(*names) |
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58 | 58 | class_eval do |
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59 | 59 | names.each do |name| |
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60 | 60 | define_method(name) do |*args| |
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61 | 61 | args.empty? ? instance_variable_get("@#{name}") : instance_variable_set("@#{name}", *args) |
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62 | 62 | end |
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63 | 63 | end |
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64 | 64 | end |
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65 | 65 | end |
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66 | 66 | end |
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67 | 67 | def_field :name, :description, :url, :author, :author_url, :version, :settings |
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68 | 68 | attr_reader :id |
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69 | 69 | |
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70 | 70 | # Plugin constructor |
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71 | 71 | def self.register(id, &block) |
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72 | 72 | p = new(id) |
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73 | 73 | p.instance_eval(&block) |
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74 | 74 | # Set a default name if it was not provided during registration |
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75 | 75 | p.name(id.to_s.humanize) if p.name.nil? |
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76 | 76 | |
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77 | 77 | # Adds plugin locales if any |
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78 | 78 | # YAML translation files should be found under <plugin>/config/locales/ |
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79 | 79 | ::I18n.load_path += Dir.glob(File.join(p.directory, 'config', 'locales', '*.yml')) |
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80 | 80 | |
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81 | 81 | # Prepends the app/views directory of the plugin to the view path |
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82 | 82 | view_path = File.join(p.directory, 'app', 'views') |
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83 | 83 | if File.directory?(view_path) |
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84 | 84 | ActionController::Base.prepend_view_path(view_path) |
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85 | 85 | ActionMailer::Base.prepend_view_path(view_path) |
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86 | 86 | end |
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87 | 87 | |
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88 | 88 | # Adds the app/{controllers,helpers,models} directories of the plugin to the autoload path |
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89 | 89 | Dir.glob File.expand_path(File.join(p.directory, 'app', '{controllers,helpers,models}')) do |dir| |
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90 | 90 | ActiveSupport::Dependencies.autoload_paths += [dir] |
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91 | 91 | end |
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92 | 92 | |
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93 | 93 | registered_plugins[id] = p |
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94 | 94 | end |
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95 | 95 | |
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96 | 96 | # Returns an array of all registered plugins |
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97 | 97 | def self.all |
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98 | 98 | registered_plugins.values.sort |
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99 | 99 | end |
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100 | 100 | |
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101 | 101 | # Finds a plugin by its id |
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102 | 102 | # Returns a PluginNotFound exception if the plugin doesn't exist |
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103 | 103 | def self.find(id) |
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104 | 104 | registered_plugins[id.to_sym] || raise(PluginNotFound) |
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105 | 105 | end |
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106 | 106 | |
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107 | 107 | # Clears the registered plugins hash |
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108 | 108 | # It doesn't unload installed plugins |
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109 | 109 | def self.clear |
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110 | 110 | @registered_plugins = {} |
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111 | 111 | end |
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112 | 112 | |
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113 | 113 | # Checks if a plugin is installed |
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114 | 114 | # |
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115 | 115 | # @param [String] id name of the plugin |
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116 | 116 | def self.installed?(id) |
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117 | 117 | registered_plugins[id.to_sym].present? |
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118 | 118 | end |
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119 | 119 | |
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120 | 120 | def self.load |
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121 | 121 | Dir.glob(File.join(self.directory, '*')).sort.each do |directory| |
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122 | 122 | if File.directory?(directory) |
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123 | 123 | lib = File.join(directory, "lib") |
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124 | 124 | if File.directory?(lib) |
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125 | 125 | $:.unshift lib |
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126 | 126 | ActiveSupport::Dependencies.autoload_paths += [lib] |
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127 | 127 | end |
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128 | 128 | initializer = File.join(directory, "init.rb") |
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129 | 129 | if File.file?(initializer) |
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130 | 130 | require initializer |
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131 | 131 | end |
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132 | 132 | end |
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133 | 133 | end |
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134 | 134 | end |
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135 | 135 | |
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136 | 136 | def initialize(id) |
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137 | 137 | @id = id.to_sym |
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138 | 138 | end |
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139 | 139 | |
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140 | 140 | def directory |
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141 | 141 | File.join(self.class.directory, id.to_s) |
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142 | 142 | end |
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143 | 143 | |
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144 | 144 | def public_directory |
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145 | 145 | File.join(self.class.public_directory, id.to_s) |
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146 | 146 | end |
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147 | 147 | |
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148 | 148 | def assets_directory |
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149 | 149 | File.join(directory, 'assets') |
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150 | 150 | end |
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151 | 151 | |
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152 | 152 | def <=>(plugin) |
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153 | 153 | self.id.to_s <=> plugin.id.to_s |
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154 | 154 | end |
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155 | 155 | |
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156 | 156 | # Sets a requirement on Redmine version |
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157 | 157 | # Raises a PluginRequirementError exception if the requirement is not met |
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158 | 158 | # |
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159 | 159 | # Examples |
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160 | 160 | # # Requires Redmine 0.7.3 or higher |
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161 | 161 | # requires_redmine :version_or_higher => '0.7.3' |
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162 | 162 | # requires_redmine '0.7.3' |
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163 | 163 | # |
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164 | 164 | # # Requires a specific Redmine version |
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165 | 165 | # requires_redmine :version => '0.7.3' # 0.7.3 only |
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166 | 166 | # requires_redmine :version => ['0.7.3', '0.8.0'] # 0.7.3 or 0.8.0 |
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167 | 167 | def requires_redmine(arg) |
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168 | 168 | arg = { :version_or_higher => arg } unless arg.is_a?(Hash) |
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169 | 169 | arg.assert_valid_keys(:version, :version_or_higher) |
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170 | 170 | |
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171 | 171 | current = Redmine::VERSION.to_a |
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172 | 172 | arg.each do |k, v| |
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173 | 173 | v = [] << v unless v.is_a?(Array) |
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174 | 174 | versions = v.collect {|s| s.split('.').collect(&:to_i)} |
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175 | 175 | case k |
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176 | 176 | when :version_or_higher |
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177 | 177 | raise ArgumentError.new("wrong number of versions (#{versions.size} for 1)") unless versions.size == 1 |
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178 | 178 | unless (current <=> versions.first) >= 0 |
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179 | 179 | raise PluginRequirementError.new("#{id} plugin requires Redmine #{v} or higher but current is #{current.join('.')}") |
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180 | 180 | end |
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181 | 181 | when :version |
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182 | 182 | unless versions.include?(current.slice(0,3)) |
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183 | 183 | raise PluginRequirementError.new("#{id} plugin requires one the following Redmine versions: #{v.join(', ')} but current is #{current.join('.')}") |
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184 | 184 | end |
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185 | 185 | end |
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186 | 186 | end |
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187 | 187 | true |
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188 | 188 | end |
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189 | 189 | |
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190 | 190 | # Sets a requirement on a Redmine plugin version |
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191 | 191 | # Raises a PluginRequirementError exception if the requirement is not met |
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192 | 192 | # |
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193 | 193 | # Examples |
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194 | 194 | # # Requires a plugin named :foo version 0.7.3 or higher |
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195 | 195 | # requires_redmine_plugin :foo, :version_or_higher => '0.7.3' |
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196 | 196 | # requires_redmine_plugin :foo, '0.7.3' |
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197 | 197 | # |
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198 | 198 | # # Requires a specific version of a Redmine plugin |
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199 | 199 | # requires_redmine_plugin :foo, :version => '0.7.3' # 0.7.3 only |
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200 | 200 | # requires_redmine_plugin :foo, :version => ['0.7.3', '0.8.0'] # 0.7.3 or 0.8.0 |
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201 | 201 | def requires_redmine_plugin(plugin_name, arg) |
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202 | 202 | arg = { :version_or_higher => arg } unless arg.is_a?(Hash) |
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203 | 203 | arg.assert_valid_keys(:version, :version_or_higher) |
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204 | 204 | |
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205 | 205 | plugin = Plugin.find(plugin_name) |
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206 | 206 | current = plugin.version.split('.').collect(&:to_i) |
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207 | 207 | |
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208 | 208 | arg.each do |k, v| |
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209 | 209 | v = [] << v unless v.is_a?(Array) |
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210 | 210 | versions = v.collect {|s| s.split('.').collect(&:to_i)} |
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211 | 211 | case k |
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212 | 212 | when :version_or_higher |
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213 | 213 | raise ArgumentError.new("wrong number of versions (#{versions.size} for 1)") unless versions.size == 1 |
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214 | 214 | unless (current <=> versions.first) >= 0 |
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215 | 215 | raise PluginRequirementError.new("#{id} plugin requires the #{plugin_name} plugin #{v} or higher but current is #{current.join('.')}") |
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216 | 216 | end |
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217 | 217 | when :version |
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218 | 218 | unless versions.include?(current.slice(0,3)) |
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219 | 219 | raise PluginRequirementError.new("#{id} plugin requires one the following versions of #{plugin_name}: #{v.join(', ')} but current is #{current.join('.')}") |
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220 | 220 | end |
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221 | 221 | end |
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222 | 222 | end |
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223 | 223 | true |
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224 | 224 | end |
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225 | 225 | |
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226 | 226 | # Adds an item to the given +menu+. |
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227 | 227 | # The +id+ parameter (equals to the project id) is automatically added to the url. |
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228 | 228 | # menu :project_menu, :plugin_example, { :controller => 'example', :action => 'say_hello' }, :caption => 'Sample' |
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229 | 229 | # |
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230 | 230 | # +name+ parameter can be: :top_menu, :account_menu, :application_menu or :project_menu |
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231 | 231 | # |
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232 | 232 | def menu(menu, item, url, options={}) |
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233 | 233 | Redmine::MenuManager.map(menu).push(item, url, options) |
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234 | 234 | end |
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235 | 235 | alias :add_menu_item :menu |
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236 | 236 | |
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237 | 237 | # Removes +item+ from the given +menu+. |
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238 | 238 | def delete_menu_item(menu, item) |
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239 | 239 | Redmine::MenuManager.map(menu).delete(item) |
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240 | 240 | end |
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241 | 241 | |
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242 | 242 | # Defines a permission called +name+ for the given +actions+. |
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243 | 243 | # |
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244 | 244 | # The +actions+ argument is a hash with controllers as keys and actions as values (a single value or an array): |
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245 | 245 | # permission :destroy_contacts, { :contacts => :destroy } |
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246 | 246 | # permission :view_contacts, { :contacts => [:index, :show] } |
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247 | 247 | # |
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248 | 248 | # The +options+ argument is a hash that accept the following keys: |
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249 | 249 | # * :public => the permission is public if set to true (implicitly given to any user) |
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250 | 250 | # * :require => can be set to one of the following values to restrict users the permission can be given to: :loggedin, :member |
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251 | 251 | # * :read => set it to true so that the permission is still granted on closed projects |
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252 | 252 | # |
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253 | 253 | # Examples |
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254 | 254 | # # A permission that is implicitly given to any user |
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255 | 255 | # # This permission won't appear on the Roles & Permissions setup screen |
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256 | 256 | # permission :say_hello, { :example => :say_hello }, :public => true, :read => true |
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257 | 257 | # |
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258 | 258 | # # A permission that can be given to any user |
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259 | 259 | # permission :say_hello, { :example => :say_hello } |
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260 | 260 | # |
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261 | 261 | # # A permission that can be given to registered users only |
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262 | 262 | # permission :say_hello, { :example => :say_hello }, :require => :loggedin |
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263 | 263 | # |
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264 | 264 | # # A permission that can be given to project members only |
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265 | 265 | # permission :say_hello, { :example => :say_hello }, :require => :member |
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266 | 266 | def permission(name, actions, options = {}) |
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267 | 267 | if @project_module |
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268 | 268 | Redmine::AccessControl.map {|map| map.project_module(@project_module) {|map|map.permission(name, actions, options)}} |
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269 | 269 | else |
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270 | 270 | Redmine::AccessControl.map {|map| map.permission(name, actions, options)} |
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271 | 271 | end |
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272 | 272 | end |
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273 | 273 | |
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274 | 274 | # Defines a project module, that can be enabled/disabled for each project. |
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275 | 275 | # Permissions defined inside +block+ will be bind to the module. |
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276 | 276 | # |
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277 | 277 | # project_module :things do |
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278 | 278 | # permission :view_contacts, { :contacts => [:list, :show] }, :public => true |
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279 | 279 | # permission :destroy_contacts, { :contacts => :destroy } |
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280 | 280 | # end |
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281 | 281 | def project_module(name, &block) |
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282 | 282 | @project_module = name |
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283 | 283 | self.instance_eval(&block) |
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284 | 284 | @project_module = nil |
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285 | 285 | end |
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286 | 286 | |
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287 | 287 | # Registers an activity provider. |
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288 | 288 | # |
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289 | 289 | # Options: |
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290 | 290 | # * <tt>:class_name</tt> - one or more model(s) that provide these events (inferred from event_type by default) |
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291 | 291 | # * <tt>:default</tt> - setting this option to false will make the events not displayed by default |
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292 | 292 | # |
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293 | 293 | # A model can provide several activity event types. |
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294 | 294 | # |
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295 | 295 | # Examples: |
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296 | 296 | # register :news |
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297 | 297 | # register :scrums, :class_name => 'Meeting' |
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298 | 298 | # register :issues, :class_name => ['Issue', 'Journal'] |
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299 | 299 | # |
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300 | 300 | # Retrieving events: |
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301 | 301 | # Associated model(s) must implement the find_events class method. |
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302 | 302 | # ActiveRecord models can use acts_as_activity_provider as a way to implement this class method. |
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303 | 303 | # |
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304 | 304 | # The following call should return all the scrum events visible by current user that occured in the 5 last days: |
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305 | 305 | # Meeting.find_events('scrums', User.current, 5.days.ago, Date.today) |
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306 | 306 | # Meeting.find_events('scrums', User.current, 5.days.ago, Date.today, :project => foo) # events for project foo only |
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307 | 307 | # |
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308 | 308 | # Note that :view_scrums permission is required to view these events in the activity view. |
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309 | 309 | def activity_provider(*args) |
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310 | 310 | Redmine::Activity.register(*args) |
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311 | 311 | end |
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312 | 312 | |
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313 | 313 | # Registers a wiki formatter. |
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314 | 314 | # |
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315 | 315 | # Parameters: |
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316 | 316 | # * +name+ - human-readable name |
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317 | 317 | # * +formatter+ - formatter class, which should have an instance method +to_html+ |
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318 | 318 | # * +helper+ - helper module, which will be included by wiki pages |
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319 | 319 | def wiki_format_provider(name, formatter, helper) |
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320 | 320 | Redmine::WikiFormatting.register(name, formatter, helper) |
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321 | 321 | end |
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322 | 322 | |
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323 | 323 | # Returns +true+ if the plugin can be configured. |
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324 | 324 | def configurable? |
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325 | 325 | settings && settings.is_a?(Hash) && !settings[:partial].blank? |
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326 | 326 | end |
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327 | 327 | |
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328 | 328 | def mirror_assets |
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329 | 329 | source = assets_directory |
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330 | 330 | destination = public_directory |
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331 | 331 | return unless File.directory?(source) |
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332 | 332 | |
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333 | 333 | source_files = Dir[source + "/**/*"] |
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334 | 334 | source_dirs = source_files.select { |d| File.directory?(d) } |
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335 | 335 | source_files -= source_dirs |
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336 | 336 | |
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337 | 337 | unless source_files.empty? |
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338 | 338 | base_target_dir = File.join(destination, File.dirname(source_files.first).gsub(source, '')) |
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339 | begin | |
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339 | 340 | FileUtils.mkdir_p(base_target_dir) |
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341 | rescue Exception => e | |
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342 | raise "Could not create directory #{base_target_dir}: " + e.message | |
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343 | end | |
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340 | 344 | end |
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341 | 345 | |
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342 | 346 | source_dirs.each do |dir| |
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343 | 347 | # strip down these paths so we have simple, relative paths we can |
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344 | 348 | # add to the destination |
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345 | 349 | target_dir = File.join(destination, dir.gsub(source, '')) |
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346 | 350 | begin |
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347 | 351 | FileUtils.mkdir_p(target_dir) |
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348 | 352 | rescue Exception => e |
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349 | 353 | raise "Could not create directory #{target_dir}: " + e.message |
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350 | 354 | end |
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351 | 355 | end |
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352 | 356 | |
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353 | 357 | source_files.each do |file| |
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354 | 358 | begin |
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355 | 359 | target = File.join(destination, file.gsub(source, '')) |
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356 | 360 | unless File.exist?(target) && FileUtils.identical?(file, target) |
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357 | 361 | FileUtils.cp(file, target) |
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358 | 362 | end |
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359 | 363 | rescue Exception => e |
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360 | 364 | raise "Could not copy #{file} to #{target}: " + e.message |
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361 | 365 | end |
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362 | 366 | end |
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363 | 367 | end |
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364 | 368 | |
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365 | 369 | # Mirrors assets from one or all plugins to public/plugin_assets |
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366 | 370 | def self.mirror_assets(name=nil) |
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367 | 371 | if name.present? |
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368 | 372 | find(name).mirror_assets |
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369 | 373 | else |
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370 | 374 | all.each do |plugin| |
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371 | 375 | plugin.mirror_assets |
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372 | 376 | end |
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373 | 377 | end |
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374 | 378 | end |
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375 | 379 | |
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376 | 380 | # The directory containing this plugin's migrations (<tt>plugin/db/migrate</tt>) |
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377 | 381 | def migration_directory |
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378 | 382 | File.join(Rails.root, 'plugins', id.to_s, 'db', 'migrate') |
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379 | 383 | end |
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380 | 384 | |
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381 | 385 | # Returns the version number of the latest migration for this plugin. Returns |
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382 | 386 | # nil if this plugin has no migrations. |
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383 | 387 | def latest_migration |
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384 | 388 | migrations.last |
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385 | 389 | end |
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386 | 390 | |
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387 | 391 | # Returns the version numbers of all migrations for this plugin. |
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388 | 392 | def migrations |
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389 | 393 | migrations = Dir[migration_directory+"/*.rb"] |
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390 | 394 | migrations.map { |p| File.basename(p).match(/0*(\d+)\_/)[1].to_i }.sort |
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391 | 395 | end |
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392 | 396 | |
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393 | 397 | # Migrate this plugin to the given version |
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394 | 398 | def migrate(version = nil) |
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395 | 399 | puts "Migrating #{id} (#{name})..." |
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396 | 400 | Redmine::Plugin::Migrator.migrate_plugin(self, version) |
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397 | 401 | end |
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398 | 402 | |
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399 | 403 | # Migrates all plugins or a single plugin to a given version |
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400 | 404 | # Exemples: |
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401 | 405 | # Plugin.migrate |
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402 | 406 | # Plugin.migrate('sample_plugin') |
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403 | 407 | # Plugin.migrate('sample_plugin', 1) |
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404 | 408 | # |
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405 | 409 | def self.migrate(name=nil, version=nil) |
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406 | 410 | if name.present? |
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407 | 411 | find(name).migrate(version) |
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408 | 412 | else |
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409 | 413 | all.each do |plugin| |
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410 | 414 | plugin.migrate |
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411 | 415 | end |
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412 | 416 | end |
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413 | 417 | end |
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414 | 418 | |
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415 | 419 | class Migrator < ActiveRecord::Migrator |
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416 | 420 | # We need to be able to set the 'current' plugin being migrated. |
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417 | 421 | cattr_accessor :current_plugin |
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418 | 422 | |
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419 | 423 | class << self |
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420 | 424 | # Runs the migrations from a plugin, up (or down) to the version given |
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421 | 425 | def migrate_plugin(plugin, version) |
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422 | 426 | self.current_plugin = plugin |
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423 | 427 | return if current_version(plugin) == version |
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424 | 428 | migrate(plugin.migration_directory, version) |
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425 | 429 | end |
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426 | 430 | |
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427 | 431 | def current_version(plugin=current_plugin) |
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428 | 432 | # Delete migrations that don't match .. to_i will work because the number comes first |
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429 | 433 | ::ActiveRecord::Base.connection.select_values( |
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430 | 434 | "SELECT version FROM #{schema_migrations_table_name}" |
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431 | 435 | ).delete_if{ |v| v.match(/-#{plugin.id}/) == nil }.map(&:to_i).max || 0 |
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432 | 436 | end |
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433 | 437 | end |
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434 | 438 | |
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435 | 439 | def migrated |
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436 | 440 | sm_table = self.class.schema_migrations_table_name |
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437 | 441 | ::ActiveRecord::Base.connection.select_values( |
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438 | 442 | "SELECT version FROM #{sm_table}" |
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439 | 443 | ).delete_if{ |v| v.match(/-#{current_plugin.id}/) == nil }.map(&:to_i).sort |
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440 | 444 | end |
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441 | 445 | |
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442 | 446 | def record_version_state_after_migrating(version) |
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443 | 447 | super(version.to_s + "-" + current_plugin.id.to_s) |
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444 | 448 | end |
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445 | 449 | end |
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446 | 450 | end |
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447 | 451 | end |
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