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1 | <?php |
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2 | namespace Robo\Collection; |
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3 | |||
4 | use Robo\Exception\AbortTasksException; |
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5 | use Robo\Result; |
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6 | use Robo\State\Data; |
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7 | use Psr\Log\LogLevel; |
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8 | use Robo\Contract\TaskInterface; |
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9 | use Robo\Task\StackBasedTask; |
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10 | use Robo\Task\BaseTask; |
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11 | use Robo\TaskInfo; |
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12 | use Robo\Contract\WrappedTaskInterface; |
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13 | use Robo\Exception\TaskException; |
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14 | use Robo\Exception\TaskExitException; |
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15 | use Robo\Contract\CommandInterface; |
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16 | |||
17 | use Robo\Contract\InflectionInterface; |
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18 | use Robo\State\StateAwareInterface; |
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19 | use Robo\State\StateAwareTrait; |
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20 | |||
21 | /** |
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22 | * Group tasks into a collection that run together. Supports |
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23 | * rollback operations for handling error conditions. |
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24 | * |
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25 | * This is an internal class. Clients should use a CollectionBuilder |
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26 | * rather than direct use of the Collection class. @see CollectionBuilder. |
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27 | * |
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28 | * Below, the example FilesystemStack task is added to a collection, |
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29 | * and associated with a rollback task. If any of the operations in |
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30 | * the FilesystemStack, or if any of the other tasks also added to |
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31 | * the task collection should fail, then the rollback function is |
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32 | * called. Here, taskDeleteDir is used to remove partial results |
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33 | * of an unfinished task. |
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34 | */ |
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35 | class Collection extends BaseTask implements CollectionInterface, CommandInterface, StateAwareInterface |
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36 | { |
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37 | use StateAwareTrait; |
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38 | |||
39 | /** |
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40 | * @var \Robo\Collection\Element[] |
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41 | */ |
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42 | protected $taskList = []; |
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43 | |||
44 | /** |
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45 | * @var TaskInterface[] |
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46 | */ |
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47 | protected $rollbackStack = []; |
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48 | |||
49 | /** |
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50 | * @var TaskInterface[] |
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51 | */ |
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52 | protected $completionStack = []; |
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53 | |||
54 | /** |
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55 | * @var CollectionInterface |
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56 | */ |
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57 | protected $parentCollection; |
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58 | |||
59 | /** |
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60 | * @var callable[] |
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61 | */ |
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62 | protected $deferredCallbacks = []; |
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63 | |||
64 | /** |
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65 | * @var string[] |
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66 | */ |
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67 | protected $messageStoreKeys = []; |
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68 | |||
69 | /** |
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70 | * Constructor. |
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71 | */ |
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72 | public function __construct() |
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73 | { |
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74 | $this->resetState(); |
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75 | } |
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76 | |||
77 | public function setProgressBarAutoDisplayInterval($interval) |
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78 | { |
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79 | if (!$this->progressIndicator) { |
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80 | return; |
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81 | } |
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82 | return $this->progressIndicator->setProgressBarAutoDisplayInterval($interval); |
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83 | } |
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84 | |||
85 | /** |
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86 | * {@inheritdoc} |
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87 | */ |
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88 | public function add(TaskInterface $task, $name = self::UNNAMEDTASK) |
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89 | { |
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90 | $task = new CompletionWrapper($this, $task); |
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91 | $this->addToTaskList($name, $task); |
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92 | return $this; |
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93 | } |
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94 | |||
95 | /** |
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96 | * {@inheritdoc} |
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97 | */ |
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98 | public function addCode(callable $code, $name = self::UNNAMEDTASK) |
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99 | { |
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100 | return $this->add(new CallableTask($code, $this), $name); |
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101 | } |
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102 | |||
103 | /** |
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104 | * {@inheritdoc} |
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105 | */ |
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106 | public function addIterable($iterable, callable $code) |
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107 | { |
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108 | $callbackTask = (new IterationTask($iterable, $code, $this))->inflect($this); |
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109 | return $this->add($callbackTask); |
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110 | } |
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111 | |||
112 | /** |
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113 | * {@inheritdoc} |
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114 | */ |
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115 | public function rollback(TaskInterface $rollbackTask) |
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116 | { |
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117 | // Rollback tasks always try as hard as they can, and never report failures. |
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118 | $rollbackTask = $this->ignoreErrorsTaskWrapper($rollbackTask); |
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119 | return $this->wrapAndRegisterRollback($rollbackTask); |
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120 | } |
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121 | |||
122 | /** |
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123 | * {@inheritdoc} |
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124 | */ |
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125 | public function rollbackCode(callable $rollbackCode) |
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126 | { |
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127 | // Rollback tasks always try as hard as they can, and never report failures. |
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128 | $rollbackTask = $this->ignoreErrorsCodeWrapper($rollbackCode); |
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129 | return $this->wrapAndRegisterRollback($rollbackTask); |
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130 | } |
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131 | |||
132 | /** |
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133 | * {@inheritdoc} |
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134 | */ |
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135 | public function completion(TaskInterface $completionTask) |
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136 | { |
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137 | $collection = $this; |
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138 | $completionRegistrationTask = new CallableTask( |
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139 | function () use ($collection, $completionTask) { |
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140 | |||
141 | $collection->registerCompletion($completionTask); |
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142 | }, |
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143 | $this |
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144 | ); |
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145 | $this->addToTaskList(self::UNNAMEDTASK, $completionRegistrationTask); |
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146 | return $this; |
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147 | } |
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148 | |||
149 | /** |
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150 | * {@inheritdoc} |
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151 | */ |
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152 | public function completionCode(callable $completionTask) |
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153 | { |
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154 | $completionTask = new CallableTask($completionTask, $this); |
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155 | return $this->completion($completionTask); |
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156 | } |
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157 | |||
158 | /** |
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159 | * {@inheritdoc} |
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160 | */ |
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161 | public function before($name, $task, $nameOfTaskToAdd = self::UNNAMEDTASK) |
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162 | { |
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163 | return $this->addBeforeOrAfter(__FUNCTION__, $name, $task, $nameOfTaskToAdd); |
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164 | } |
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165 | |||
166 | /** |
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167 | * {@inheritdoc} |
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168 | */ |
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169 | public function after($name, $task, $nameOfTaskToAdd = self::UNNAMEDTASK) |
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170 | { |
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171 | return $this->addBeforeOrAfter(__FUNCTION__, $name, $task, $nameOfTaskToAdd); |
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172 | } |
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173 | |||
174 | /** |
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175 | * {@inheritdoc} |
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176 | */ |
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177 | public function progressMessage($text, $context = [], $level = LogLevel::NOTICE) |
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178 | { |
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179 | $context += ['name' => 'Progress']; |
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180 | $context += TaskInfo::getTaskContext($this); |
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181 | return $this->addCode( |
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182 | function () use ($level, $text, $context) { |
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183 | $context += $this->getState()->getData(); |
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184 | $this->printTaskOutput($level, $text, $context); |
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185 | } |
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186 | ); |
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187 | } |
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188 | |||
189 | /** |
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190 | * @param \Robo\Contract\TaskInterface $rollbackTask |
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191 | * |
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192 | * @return $this |
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193 | */ |
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194 | protected function wrapAndRegisterRollback(TaskInterface $rollbackTask) |
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195 | { |
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196 | $collection = $this; |
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197 | $rollbackRegistrationTask = new CallableTask( |
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198 | function () use ($collection, $rollbackTask) { |
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199 | $collection->registerRollback($rollbackTask); |
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200 | }, |
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201 | $this |
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202 | ); |
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203 | $this->addToTaskList(self::UNNAMEDTASK, $rollbackRegistrationTask); |
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204 | return $this; |
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205 | } |
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206 | |||
207 | /** |
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208 | * Add either a 'before' or 'after' function or task. |
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209 | * |
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210 | * @param string $method |
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211 | * @param string $name |
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212 | * @param callable|TaskInterface $task |
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213 | * @param string $nameOfTaskToAdd |
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214 | * |
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215 | * @return $this |
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216 | */ |
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217 | protected function addBeforeOrAfter($method, $name, $task, $nameOfTaskToAdd) |
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218 | { |
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219 | if (is_callable($task)) { |
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220 | $task = new CallableTask($task, $this); |
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221 | } |
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222 | $existingTask = $this->namedTask($name); |
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223 | $fn = [$existingTask, $method]; |
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224 | call_user_func($fn, $task, $nameOfTaskToAdd); |
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225 | return $this; |
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226 | } |
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227 | |||
228 | /** |
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229 | * Wrap the provided task in a wrapper that will ignore |
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230 | * any errors or exceptions that may be produced. This |
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231 | * is useful, for example, in adding optional cleanup tasks |
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232 | * at the beginning of a task collection, to remove previous |
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233 | * results which may or may not exist. |
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234 | * |
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235 | * TODO: Provide some way to specify which sort of errors |
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236 | * are ignored, so that 'file not found' may be ignored, |
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237 | * but 'permission denied' reported? |
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238 | * |
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239 | * @param \Robo\Contract\TaskInterface $task |
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240 | * |
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241 | * @return \Robo\Collection\CallableTask |
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242 | */ |
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243 | public function ignoreErrorsTaskWrapper(TaskInterface $task) |
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244 | { |
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245 | // If the task is a stack-based task, then tell it |
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246 | // to try to run all of its operations, even if some |
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247 | // of them fail. |
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248 | if ($task instanceof StackBasedTask) { |
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249 | $task->stopOnFail(false); |
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250 | } |
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251 | $ignoreErrorsInTask = function () use ($task) { |
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252 | $data = []; |
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253 | try { |
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254 | $result = $this->runSubtask($task); |
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255 | $message = $result->getMessage(); |
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256 | $data = $result->getData(); |
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257 | $data['exitcode'] = $result->getExitCode(); |
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258 | } catch (AbortTasksException $abortTasksException) { |
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259 | throw $abortTasksException; |
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260 | } catch (\Exception $e) { |
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261 | $message = $e->getMessage(); |
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262 | } |
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263 | |||
264 | return Result::success($task, $message, $data); |
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265 | }; |
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266 | // Wrap our ignore errors callable in a task. |
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267 | return new CallableTask($ignoreErrorsInTask, $this); |
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268 | } |
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269 | |||
270 | /** |
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271 | * @param callable $task |
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272 | * |
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273 | * @return \Robo\Collection\CallableTask |
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274 | */ |
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275 | public function ignoreErrorsCodeWrapper(callable $task) |
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276 | { |
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277 | return $this->ignoreErrorsTaskWrapper(new CallableTask($task, $this)); |
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278 | } |
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279 | |||
280 | /** |
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281 | * Return the list of task names added to this collection. |
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282 | * |
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283 | * @return array |
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284 | */ |
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285 | public function taskNames() |
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286 | { |
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287 | return array_keys($this->taskList); |
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288 | } |
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289 | |||
290 | /** |
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291 | * Test to see if a specified task name exists. |
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292 | * n.b. before() and after() require that the named |
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293 | * task exist; use this function to test first, if |
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294 | * unsure. |
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295 | * |
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296 | * @param string $name |
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297 | * |
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298 | * @return bool |
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299 | */ |
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300 | public function hasTask($name) |
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301 | { |
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302 | return array_key_exists($name, $this->taskList); |
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303 | } |
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304 | |||
305 | /** |
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306 | * Find an existing named task. |
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307 | * |
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308 | * @param string $name |
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309 | * The name of the task to insert before. The named task MUST exist. |
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310 | * |
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311 | * @return Element |
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312 | * The task group for the named task. Generally this is only |
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313 | * used to call 'before()' and 'after()'. |
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314 | */ |
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315 | protected function namedTask($name) |
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316 | { |
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317 | if (!$this->hasTask($name)) { |
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318 | throw new \RuntimeException("Could not find task named $name"); |
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319 | } |
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320 | return $this->taskList[$name]; |
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321 | } |
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322 | |||
323 | /** |
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324 | * Add a list of tasks to our task collection. |
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325 | * |
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326 | * @param TaskInterface[] $tasks |
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327 | * An array of tasks to run with rollback protection |
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328 | * |
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329 | * @return $this |
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330 | */ |
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331 | public function addTaskList(array $tasks) |
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332 | { |
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333 | foreach ($tasks as $name => $task) { |
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334 | $this->add($task, $name); |
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335 | } |
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336 | return $this; |
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337 | } |
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338 | |||
339 | /** |
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340 | * Add the provided task to our task list. |
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341 | * |
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342 | * @param string $name |
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343 | * @param \Robo\Contract\TaskInterface $task |
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344 | * |
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345 | * @return \Robo\Collection\Collection |
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346 | */ |
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347 | protected function addToTaskList($name, TaskInterface $task) |
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348 | { |
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349 | // All tasks are stored in a task group so that we have a place |
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350 | // to hang 'before' and 'after' tasks. |
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351 | $taskGroup = new Element($task); |
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352 | return $this->addCollectionElementToTaskList($name, $taskGroup); |
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353 | } |
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354 | |||
355 | /** |
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356 | * @param int|string $name |
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357 | * @param \Robo\Collection\Element $taskGroup |
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358 | * |
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359 | * @return $this |
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360 | */ |
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361 | protected function addCollectionElementToTaskList($name, Element $taskGroup) |
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362 | { |
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363 | // If a task name is not provided, then we'll let php pick |
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364 | // the array index. |
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365 | if (Result::isUnnamed($name)) { |
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366 | $this->taskList[] = $taskGroup; |
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367 | return $this; |
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368 | } |
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369 | // If we are replacing an existing task with the |
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370 | // same name, ensure that our new task is added to |
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371 | // the end. |
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372 | $this->taskList[$name] = $taskGroup; |
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373 | return $this; |
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374 | } |
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375 | |||
376 | /** |
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377 | * Set the parent collection. This is necessary so that nested |
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378 | * collections' rollback and completion tasks can be added to the |
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379 | * top-level collection, ensuring that the rollbacks for a collection |
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380 | * will run if any later task fails. |
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381 | * |
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382 | * @param \Robo\Collection\NestedCollectionInterface $parentCollection |
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383 | * |
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384 | * @return $this |
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385 | */ |
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386 | public function setParentCollection(NestedCollectionInterface $parentCollection) |
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387 | { |
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388 | $this->parentCollection = $parentCollection; |
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389 | return $this; |
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390 | } |
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391 | |||
392 | /** |
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393 | * Get the appropriate parent collection to use |
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394 | * |
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395 | * @return CollectionInterface |
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396 | */ |
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397 | public function getParentCollection() |
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398 | { |
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399 | return $this->parentCollection ? $this->parentCollection : $this; |
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400 | } |
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401 | |||
402 | /** |
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403 | * Register a rollback task to run if there is any failure. |
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404 | * |
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405 | * Clients are free to add tasks to the rollback stack as |
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406 | * desired; however, usually it is preferable to call |
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407 | * Collection::rollback() instead. With that function, |
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408 | * the rollback function will only be called if all of the |
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409 | * tasks added before it complete successfully, AND some later |
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410 | * task fails. |
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411 | * |
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412 | * One example of a good use-case for registering a callback |
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413 | * function directly is to add a task that sends notification |
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414 | * when a task fails. |
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415 | * |
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416 | * @param TaskInterface $rollbackTask |
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417 | * The rollback task to run on failure. |
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418 | */ |
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419 | public function registerRollback(TaskInterface $rollbackTask) |
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420 | { |
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421 | if ($this->parentCollection) { |
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422 | return $this->parentCollection->registerRollback($rollbackTask); |
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423 | } |
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424 | if ($rollbackTask) { |
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425 | array_unshift($this->rollbackStack, $rollbackTask); |
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426 | } |
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427 | } |
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428 | |||
429 | /** |
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430 | * Register a completion task to run once all other tasks finish. |
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431 | * Completion tasks run whether or not a rollback operation was |
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432 | * triggered. They do not trigger rollbacks if they fail. |
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433 | * |
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434 | * The typical use-case for a completion function is to clean up |
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435 | * temporary objects (e.g. temporary folders). The preferred |
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436 | * way to do that, though, is to use Temporary::wrap(). |
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437 | * |
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438 | * On failures, completion tasks will run after all rollback tasks. |
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439 | * If one task collection is nested inside another task collection, |
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440 | * then the nested collection's completion tasks will run as soon as |
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441 | * the nested task completes; they are not deferred to the end of |
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442 | * the containing collection's execution. |
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443 | * |
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444 | * @param TaskInterface $completionTask |
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445 | * The completion task to run at the end of all other operations. |
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446 | */ |
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447 | public function registerCompletion(TaskInterface $completionTask) |
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448 | { |
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449 | if ($this->parentCollection) { |
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450 | return $this->parentCollection->registerCompletion($completionTask); |
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451 | } |
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452 | if ($completionTask) { |
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453 | // Completion tasks always try as hard as they can, and never report failures. |
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454 | $completionTask = $this->ignoreErrorsTaskWrapper($completionTask); |
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455 | $this->completionStack[] = $completionTask; |
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456 | } |
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457 | } |
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458 | |||
459 | /** |
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460 | * Return the count of steps in this collection |
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461 | * |
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462 | * @return int |
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463 | */ |
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464 | public function progressIndicatorSteps() |
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465 | { |
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466 | $steps = 0; |
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467 | foreach ($this->taskList as $name => $taskGroup) { |
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468 | $steps += $taskGroup->progressIndicatorSteps(); |
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469 | } |
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470 | return $steps; |
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471 | } |
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472 | |||
473 | /** |
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474 | * A Collection of tasks can provide a command via `getCommand()` |
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475 | * if it contains a single task, and that task implements CommandInterface. |
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476 | * |
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477 | * @return string |
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478 | * |
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479 | * @throws \Robo\Exception\TaskException |
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480 | */ |
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481 | public function getCommand() |
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482 | { |
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483 | if (empty($this->taskList)) { |
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484 | return ''; |
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485 | } |
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486 | |||
487 | if (count($this->taskList) > 1) { |
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488 | // TODO: We could potentially iterate over the items in the collection |
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489 | // and concatenate the result of getCommand() from each one, and fail |
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490 | // only if we encounter a command that is not a CommandInterface. |
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491 | throw new TaskException($this, "getCommand() does not work on arbitrary collections of tasks."); |
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492 | } |
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493 | |||
494 | $taskElement = reset($this->taskList); |
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495 | $task = $taskElement->getTask(); |
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496 | $task = ($task instanceof WrappedTaskInterface) ? $task->original() : $task; |
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497 | if ($task instanceof CommandInterface) { |
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498 | return $task->getCommand(); |
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499 | } |
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500 | |||
501 | throw new TaskException($task, get_class($task) . " does not implement CommandInterface, so can't be used to provide a command"); |
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502 | } |
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503 | |||
504 | /** |
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505 | * Run our tasks, and roll back if necessary. |
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506 | * |
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507 | * @return \Robo\Result |
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508 | */ |
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509 | public function run() |
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510 | { |
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511 | $result = $this->runWithoutCompletion(); |
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512 | $this->complete(); |
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513 | return $result; |
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514 | } |
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515 | |||
516 | /** |
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517 | * @return \Robo\Result |
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518 | */ |
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519 | private function runWithoutCompletion() |
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520 | { |
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521 | $result = Result::success($this); |
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522 | |||
523 | if (empty($this->taskList)) { |
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524 | return $result; |
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525 | } |
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526 | |||
527 | $this->startProgressIndicator(); |
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528 | if ($result->wasSuccessful()) { |
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529 | foreach ($this->taskList as $name => $taskGroup) { |
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530 | $taskList = $taskGroup->getTaskList(); |
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531 | $result = $this->runTaskList($name, $taskList, $result); |
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532 | if (!$result->wasSuccessful()) { |
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533 | $this->fail(); |
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534 | return $result; |
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535 | } |
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536 | } |
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537 | $this->taskList = []; |
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538 | } |
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539 | $this->stopProgressIndicator(); |
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540 | $result['time'] = $this->getExecutionTime(); |
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541 | |||
542 | return $result; |
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543 | } |
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544 | |||
545 | /** |
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546 | * Run every task in a list, but only up to the first failure. |
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547 | * Return the failing result, or success if all tasks run. |
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548 | * |
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549 | * @param string $name |
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550 | * @param TaskInterface[] $taskList |
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551 | * @param \Robo\Result $result |
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552 | * |
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553 | * @return \Robo\Result |
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554 | * |
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555 | * @throws \Robo\Exception\TaskExitException |
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556 | */ |
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557 | private function runTaskList($name, array $taskList, Result $result) |
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558 | { |
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559 | try { |
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560 | foreach ($taskList as $taskName => $task) { |
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561 | $taskResult = $this->runSubtask($task); |
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562 | $this->advanceProgressIndicator(); |
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563 | // If the current task returns an error code, then stop |
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564 | // execution and signal a rollback. |
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565 | if (!$taskResult->wasSuccessful()) { |
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566 | return $taskResult; |
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567 | } |
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568 | // We accumulate our results into a field so that tasks that |
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569 | // have a reference to the collection may examine and modify |
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570 | // the incremental results, if they wish. |
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571 | $key = Result::isUnnamed($taskName) ? $name : $taskName; |
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572 | $result->accumulate($key, $taskResult); |
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573 | // The result message will be the message of the last task executed. |
||
574 | $result->setMessage($taskResult->getMessage()); |
||
575 | } |
||
576 | } catch (TaskExitException $exitException) { |
||
577 | $this->fail(); |
||
578 | throw $exitException; |
||
579 | } catch (\Exception $e) { |
||
580 | // Tasks typically should not throw, but if one does, we will |
||
581 | // convert it into an error and roll back. |
||
582 | return Result::fromException($task, $e, $result->getData()); |
||
583 | } |
||
584 | return $result; |
||
585 | } |
||
586 | |||
587 | /** |
||
588 | * Force the rollback functions to run |
||
589 | * |
||
590 | * @return $this |
||
591 | */ |
||
592 | public function fail() |
||
593 | { |
||
594 | $this->disableProgressIndicator(); |
||
595 | $this->runRollbackTasks(); |
||
596 | $this->complete(); |
||
597 | return $this; |
||
598 | } |
||
599 | |||
600 | /** |
||
601 | * Force the completion functions to run |
||
602 | * |
||
603 | * @return $this |
||
604 | */ |
||
605 | public function complete() |
||
606 | { |
||
607 | $this->detatchProgressIndicator(); |
||
608 | $this->runTaskListIgnoringFailures($this->completionStack); |
||
609 | $this->reset(); |
||
610 | return $this; |
||
611 | } |
||
612 | |||
613 | /** |
||
614 | * Reset this collection, removing all tasks. |
||
615 | * |
||
616 | * @return $this |
||
617 | */ |
||
618 | public function reset() |
||
619 | { |
||
620 | $this->taskList = []; |
||
621 | $this->completionStack = []; |
||
622 | $this->rollbackStack = []; |
||
623 | return $this; |
||
624 | } |
||
625 | |||
626 | /** |
||
627 | * Run all of our rollback tasks. |
||
628 | * |
||
629 | * Note that Collection does not implement RollbackInterface, but |
||
630 | * it may still be used as a task inside another task collection |
||
631 | * (i.e. you can nest task collections, if desired). |
||
632 | */ |
||
633 | protected function runRollbackTasks() |
||
634 | { |
||
635 | $this->runTaskListIgnoringFailures($this->rollbackStack); |
||
636 | // Erase our rollback stack once we have finished rolling |
||
637 | // everything back. This will allow us to potentially use |
||
638 | // a command collection more than once (e.g. to retry a |
||
639 | // failed operation after doing some error recovery). |
||
640 | $this->rollbackStack = []; |
||
641 | } |
||
642 | |||
643 | /** |
||
644 | * @param TaskInterface|NestedCollectionInterface|WrappedTaskInterface $task |
||
645 | * |
||
646 | * @return \Robo\Result |
||
647 | */ |
||
648 | protected function runSubtask($task) |
||
649 | { |
||
650 | $original = ($task instanceof WrappedTaskInterface) ? $task->original() : $task; |
||
651 | $this->setParentCollectionForTask($original, $this->getParentCollection()); |
||
652 | if ($original instanceof InflectionInterface) { |
||
653 | $original->inflect($this); |
||
654 | } |
||
655 | if ($original instanceof StateAwareInterface) { |
||
656 | $original->setState($this->getState()); |
||
657 | } |
||
658 | $this->doDeferredInitialization($original); |
||
659 | $taskResult = $task->run(); |
||
660 | $taskResult = Result::ensureResult($task, $taskResult); |
||
661 | $this->doStateUpdates($original, $taskResult); |
||
662 | return $taskResult; |
||
663 | } |
||
664 | |||
665 | protected function doStateUpdates($task, Data $taskResult) |
||
666 | { |
||
667 | $this->updateState($taskResult); |
||
668 | $key = spl_object_hash($task); |
||
669 | if (array_key_exists($key, $this->messageStoreKeys)) { |
||
670 | $state = $this->getState(); |
||
671 | list($stateKey, $sourceKey) = $this->messageStoreKeys[$key]; |
||
672 | $value = empty($sourceKey) ? $taskResult->getMessage() : $taskResult[$sourceKey]; |
||
673 | $state[$stateKey] = $value; |
||
674 | } |
||
675 | } |
||
676 | |||
677 | public function storeState($task, $key, $source = '') |
||
678 | { |
||
679 | $this->messageStoreKeys[spl_object_hash($task)] = [$key, $source]; |
||
680 | |||
681 | return $this; |
||
682 | } |
||
683 | |||
684 | public function deferTaskConfiguration($task, $functionName, $stateKey) |
||
685 | { |
||
686 | return $this->defer( |
||
687 | $task, |
||
688 | function ($task, $state) use ($functionName, $stateKey) { |
||
689 | $fn = [$task, $functionName]; |
||
690 | $value = $state[$stateKey]; |
||
691 | $fn($value); |
||
692 | } |
||
693 | ); |
||
694 | } |
||
695 | |||
696 | /** |
||
697 | * Defer execution of a callback function until just before a task |
||
698 | * runs. Use this time to provide more settings for the task, e.g. from |
||
699 | * the collection's shared state, which is populated with the results |
||
700 | * of previous test runs. |
||
701 | */ |
||
702 | public function defer($task, $callback) |
||
703 | { |
||
704 | $this->deferredCallbacks[spl_object_hash($task)][] = $callback; |
||
705 | |||
706 | return $this; |
||
707 | } |
||
708 | |||
709 | protected function doDeferredInitialization($task) |
||
710 | { |
||
711 | // If the task is a state consumer, then call its receiveState method |
||
712 | if ($task instanceof \Robo\State\Consumer) { |
||
713 | $task->receiveState($this->getState()); |
||
714 | } |
||
715 | |||
716 | // Check and see if there are any deferred callbacks for this task. |
||
717 | $key = spl_object_hash($task); |
||
718 | if (!array_key_exists($key, $this->deferredCallbacks)) { |
||
719 | return; |
||
720 | } |
||
721 | |||
722 | // Call all of the deferred callbacks |
||
723 | foreach ($this->deferredCallbacks[$key] as $fn) { |
||
724 | $fn($task, $this->getState()); |
||
725 | } |
||
726 | } |
||
727 | |||
728 | /** |
||
729 | * @param TaskInterface|NestedCollectionInterface|WrappedTaskInterface $task |
||
730 | * @param $parentCollection |
||
731 | */ |
||
732 | protected function setParentCollectionForTask($task, $parentCollection) |
||
733 | { |
||
734 | if ($task instanceof NestedCollectionInterface) { |
||
735 | $task->setParentCollection($parentCollection); |
||
736 | } |
||
737 | } |
||
738 | |||
739 | /** |
||
740 | * Run all of the tasks in a provided list, ignoring failures. |
||
741 | * |
||
742 | * You may force a failure by throwing a ForcedException in your rollback or |
||
743 | * completion task or callback. |
||
744 | * |
||
745 | * This is used to roll back or complete. |
||
746 | * |
||
747 | * @param TaskInterface[] $taskList |
||
748 | */ |
||
749 | protected function runTaskListIgnoringFailures(array $taskList) |
||
750 | { |
||
751 | foreach ($taskList as $task) { |
||
752 | try { |
||
753 | $this->runSubtask($task); |
||
754 | } catch (AbortTasksException $abortTasksException) { |
||
755 | // If there's a forced exception, end the loop of tasks. |
||
756 | if ($message = $abortTasksException->getMessage()) { |
||
757 | $this->logger()->notice($message); |
||
758 | } |
||
759 | break; |
||
760 | } catch (\Exception $e) { |
||
761 | // Ignore rollback failures. |
||
762 | } |
||
763 | } |
||
764 | } |
||
765 | |||
766 | /** |
||
767 | * Give all of our tasks to the provided collection builder. |
||
768 | * |
||
769 | * @param CollectionBuilder $builder |
||
770 | */ |
||
771 | public function transferTasks($builder) |
||
772 | { |
||
773 | foreach ($this->taskList as $name => $taskGroup) { |
||
774 | // TODO: We are abandoning all of our before and after tasks here. |
||
775 | // At the moment, transferTasks is only called under conditions where |
||
776 | // there will be none of these, but care should be taken if that changes. |
||
777 | $task = $taskGroup->getTask(); |
||
778 | $builder->addTaskToCollection($task); |
||
779 | } |
||
780 | $this->reset(); |
||
781 | } |
||
782 | } |
||
783 |
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a given class or a super-class is assigned to a property that is type hinted more strictly.
Either this assignment is in error or an instanceof check should be added for that assignment.