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1 | <?php declare(strict_types=1); |
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2 | /* (c) Anton Medvedev <[email protected]> |
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3 | * |
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4 | * For the full copyright and license information, please view the LICENSE |
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5 | * file that was distributed with this source code. |
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6 | */ |
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7 | |||
8 | namespace Deployer\Executor; |
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9 | |||
10 | use Deployer\Component\Ssh\Client; |
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11 | use Deployer\Configuration\Configuration; |
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12 | use Deployer\Deployer; |
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13 | use Deployer\Host\Host; |
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14 | use Deployer\Host\Localhost; |
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15 | use Deployer\Selector\Selector; |
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16 | use Deployer\Task\Task; |
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17 | use Psr\Http\Message\ServerRequestInterface; |
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18 | use Symfony\Component\Console\Input\InputInterface; |
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19 | use Symfony\Component\Console\Output\OutputInterface; |
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20 | use Symfony\Component\Process\Process; |
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21 | use React; |
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22 | |||
23 | 1 | const FRAMES = ['⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏']; |
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24 | |||
25 | function spinner($message = '') |
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26 | { |
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27 | 1 | $frame = FRAMES[(int)(microtime(true) * 10) % count(FRAMES)]; |
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28 | 1 | return " $frame $message\r"; |
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29 | } |
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30 | |||
31 | class Master |
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32 | { |
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33 | private $input; |
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34 | private $output; |
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35 | private $messenger; |
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36 | private $client; |
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37 | private $config; |
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38 | private $port; |
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39 | /** |
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40 | * @var React\EventLoop\LoopInterface |
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41 | */ |
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42 | private $loop; |
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43 | |||
44 | 10 | public function __construct( |
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45 | InputInterface $input, |
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46 | OutputInterface $output, |
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47 | Messenger $messenger, |
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48 | Client $client, |
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49 | Configuration $config |
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50 | ) |
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51 | { |
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52 | 10 | $this->input = $input; |
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53 | 10 | $this->output = $output; |
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54 | 10 | $this->messenger = $messenger; |
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55 | 10 | $this->client = $client; |
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56 | 10 | $this->config = $config; |
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57 | 10 | } |
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58 | |||
59 | /** |
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60 | * @param Task[] $tasks |
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61 | * @param Host[] $hosts |
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62 | * @param Planner|null $plan |
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63 | * @return int |
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64 | */ |
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65 | 10 | public function run(array $tasks, array $hosts, $plan = null): int |
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66 | { |
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67 | 10 | $plan || $this->connect($hosts); |
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68 | |||
69 | 10 | $globalLimit = (int)$this->input->getOption('limit') ?: count($hosts); |
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70 | |||
71 | 10 | foreach ($tasks as $task) { |
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72 | 10 | $plan || $this->messenger->startTask($task); |
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73 | |||
74 | 10 | $plannedHosts = $hosts; |
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75 | |||
76 | 10 | $limit = min($globalLimit, $task->getLimit() ?? $globalLimit); |
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77 | |||
78 | 10 | if ($task->isOnce()) { |
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79 | 4 | $plannedHosts = []; |
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80 | 4 | foreach ($hosts as $currentHost) { |
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81 | 4 | if (Selector::apply($task->getSelector(), $currentHost)) { |
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82 | 4 | $plannedHosts[] = $currentHost; |
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83 | 4 | break; |
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84 | } |
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85 | } |
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86 | } |
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87 | |||
88 | 10 | if ($task->isLocal()) { |
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89 | $plannedHosts = [new Localhost('localhost')]; |
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90 | } |
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91 | |||
92 | 10 | if ($limit === 1 || count($plannedHosts) === 1) { |
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93 | 10 | foreach ($plannedHosts as $currentHost) { |
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94 | 10 | if (!Selector::apply($task->getSelector(), $currentHost)) { |
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95 | if ($plan) { |
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96 | $plan->commit([], $task); |
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97 | } |
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98 | continue; |
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99 | } |
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100 | |||
101 | 10 | if ($plan) { |
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102 | $plan->commit([$currentHost], $task); |
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103 | continue; |
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104 | } |
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105 | |||
106 | 10 | $exitCode = $this->runTask($task, [$currentHost]); |
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107 | 10 | if ($exitCode !== 0) { |
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108 | 2 | return $exitCode; |
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109 | } |
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110 | } |
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111 | } else { |
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112 | 2 | foreach (array_chunk($hosts, $limit) as $chunk) { |
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113 | 2 | $selector = $task->getSelector(); |
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114 | 2 | $selectedHosts = []; |
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115 | 2 | foreach ($chunk as $currentHost) { |
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116 | 2 | if ($selector === null || Selector::apply($selector, $currentHost)) { |
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117 | 2 | $selectedHosts[] = $currentHost; |
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118 | } |
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119 | } |
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120 | |||
121 | |||
122 | 2 | if ($plan) { |
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123 | $plan->commit($selectedHosts, $task); |
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124 | continue; |
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125 | } |
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126 | |||
127 | 2 | $exitCode = $this->runTask($task, $selectedHosts); |
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128 | 2 | if ($exitCode !== 0) { |
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129 | return $exitCode; |
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130 | } |
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131 | } |
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132 | } |
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133 | |||
134 | 10 | if (!$plan) { |
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135 | 10 | $this->messenger->endTask($task); |
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136 | } |
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137 | } |
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138 | |||
139 | 10 | return 0; |
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140 | } |
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141 | |||
142 | /** |
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143 | * @param Host[] $hosts |
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144 | */ |
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145 | 10 | private function connect(array $hosts) |
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146 | { |
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147 | View Code Duplication | $callback = function (string $output) { |
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148 | $output = preg_replace('/\n$/', '', $output); |
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149 | if (strlen($output) !== 0) { |
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150 | $this->output->writeln($output); |
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151 | } |
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152 | 10 | }; |
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153 | |||
154 | // Connect to each host sequentially, to prevent getting locked. |
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155 | 10 | foreach ($hosts as $host) { |
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156 | 10 | if ($host instanceof Localhost) { |
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157 | 10 | continue; |
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158 | } |
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159 | $process = $this->getProcess($host, new Task('connect')); |
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160 | $process->start(); |
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161 | |||
162 | while ($process->isRunning()) { |
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163 | $this->gatherOutput([$process], $callback); |
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164 | $this->output->write(spinner(str_pad("connect {$host->getTag()}", intval(getenv('COLUMNS')) - 1))); |
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165 | usleep(1000); |
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166 | } |
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167 | } |
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168 | |||
169 | // Clear spinner. |
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170 | 10 | $this->output->write(str_repeat(' ', intval(getenv('COLUMNS')) - 1) . "\r"); |
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171 | 10 | } |
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172 | |||
173 | /** |
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174 | * @param Task $task |
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175 | * @param Host[] $hosts |
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176 | * @return int |
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177 | */ |
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178 | 10 | private function runTask(Task $task, array $hosts): int |
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179 | { |
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180 | 10 | if (getenv('DEPLOYER_LOCAL_WORKER') === 'true') { |
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181 | // This allows to code coverage all recipe, |
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182 | // as well as speedup tests by not spawning |
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183 | // lots of processes. Also there is a few tests |
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184 | // what runs with workers for tests subprocess |
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185 | // communications. |
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186 | 9 | foreach ($hosts as $host) { |
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187 | 9 | $worker = new Worker(Deployer::get()); |
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188 | 9 | $exitCode = $worker->execute($task, $host); |
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189 | 9 | if ($exitCode !== 0) { |
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190 | 2 | return $exitCode; |
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191 | } |
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192 | } |
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193 | 9 | return 0; |
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194 | } |
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195 | |||
196 | 1 | $processes = []; |
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197 | 1 | foreach ($hosts as $host) { |
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198 | 1 | $processes[] = $this->getProcess($host, $task); |
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199 | } |
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200 | |||
201 | 1 | foreach ($processes as $process) { |
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202 | 1 | $process->start(); |
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203 | } |
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204 | |||
205 | 1 | $this->createServer(); |
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206 | |||
207 | View Code Duplication | $callback = function (string $output) { |
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208 | 1 | $output = preg_replace('/\n$/', '', $output); |
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209 | 1 | if (strlen($output) !== 0) { |
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210 | 1 | $this->output->writeln($output); |
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211 | } |
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212 | 1 | }; |
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213 | |||
214 | $this->loop->addPeriodicTimer(0.03, function () use ($processes, $callback) { |
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215 | 1 | $this->gatherOutput($processes, $callback); |
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216 | 1 | $this->output->write(spinner()); |
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217 | 1 | if (!$this->areRunning($processes)) { |
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218 | 1 | $this->loop->stop(); |
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219 | } |
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220 | 1 | }); |
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221 | |||
222 | 1 | $this->loop->run(); |
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223 | 1 | $this->output->write(" \r"); // clear spinner |
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224 | 1 | $this->gatherOutput($processes, $callback); |
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225 | 1 | return $this->cumulativeExitCode($processes); |
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226 | } |
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227 | |||
228 | 1 | protected function createServer() |
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229 | { |
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230 | 1 | $this->loop = React\EventLoop\Factory::create(); |
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231 | $server = new React\Http\Server($this->loop, function (ServerRequestInterface $request) { |
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232 | return new React\Http\Message\Response( |
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233 | 200, |
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234 | array( |
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235 | 'Content-Type' => 'text/plain' |
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236 | ), |
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237 | "Hello World!\n" |
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238 | ); |
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239 | 1 | }); |
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240 | 1 | $socket = new React\Socket\Server(0, $this->loop); |
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241 | 1 | $server->listen($socket); |
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242 | 1 | $address = $socket->getAddress(); |
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243 | 1 | $this->port = parse_url($address, PHP_URL_PORT); |
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244 | 1 | } |
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245 | |||
246 | 1 | protected function getProcess(Host $host, Task $task): Process |
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247 | { |
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248 | 1 | $dep = PHP_BINARY . ' ' . DEPLOYER_BIN; |
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249 | 1 | $configDirectory = $host->get('config_directory'); |
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250 | 1 | $decorated = $this->output->isDecorated() ? '--decorated' : ''; |
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251 | 1 | $command = "$dep worker $task {$host->getAlias()} $configDirectory {$this->input} $decorated"; |
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252 | |||
253 | 1 | if ($this->output->isDebug()) { |
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254 | $this->output->writeln("[{$host->getTag()}] $command"); |
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255 | } |
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256 | |||
257 | 1 | return Process::fromShellCommandline($command); |
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258 | } |
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259 | |||
260 | /** |
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261 | * @param Process[] $processes |
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262 | * @return bool |
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263 | */ |
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264 | 1 | protected function areRunning(array $processes): bool |
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265 | { |
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266 | 1 | foreach ($processes as $process) { |
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267 | 1 | if ($process->isRunning()) { |
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268 | 1 | return true; |
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269 | } |
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270 | } |
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271 | 1 | return false; |
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272 | } |
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273 | |||
274 | /** |
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275 | * @param Process[] $processes |
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276 | * @param callable $callback |
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277 | */ |
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278 | 1 | protected function gatherOutput(array $processes, callable $callback) |
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279 | { |
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280 | 1 | foreach ($processes as $process) { |
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281 | 1 | $output = $process->getIncrementalOutput(); |
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282 | 1 | if (strlen($output) !== 0) { |
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283 | 1 | $callback($output); |
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284 | } |
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285 | |||
286 | 1 | $errorOutput = $process->getIncrementalErrorOutput(); |
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287 | 1 | if (strlen($errorOutput) !== 0) { |
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288 | $callback($errorOutput); |
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289 | } |
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290 | } |
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291 | 1 | } |
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292 | |||
293 | /** |
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294 | * @param Process[] $processes |
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295 | * @return int |
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296 | */ |
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297 | 1 | protected function cumulativeExitCode(array $processes): int |
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298 | { |
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299 | 1 | foreach ($processes as $process) { |
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300 | 1 | if ($process->getExitCode() > 0) { |
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301 | return $process->getExitCode(); |
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302 | } |
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303 | } |
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304 | 1 | return 0; |
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305 | } |
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306 | } |
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307 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.