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<?php |
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/* this file is part of pipelines */ |
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namespace Ktomk\Pipelines\Runner; |
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use Ktomk\Pipelines\File\Pipeline\Step; |
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use Ktomk\Pipelines\Lib; |
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/** |
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* Class StepScriptWriter |
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* |
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* Writes a pipeline step script as string. In use for script and after-script. |
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* |
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* @package Ktomk\Pipelines\Runner |
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*/ |
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class StepScriptWriter |
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{ |
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/** |
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* @param array|string[] $script |
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* @param int $status exit status |
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*/ |
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public static function writeAfterScript(array $script, $status = 0) |
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{ |
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$buffer = "# this /bin/sh script is generated from a pipeline after-script\n"; |
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$buffer .= "set -e\n"; |
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$buffer .= sprintf("BITBUCKET_EXIT_CODE=%d\n", $status); |
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$buffer .= "export BITBUCKET_EXIT_CODE\n"; |
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$buffer .= self::generateScriptBody($script); |
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return $buffer; |
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} |
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/** |
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* generate step script from Step |
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* |
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* @param array|string[] $script |
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* @param bool $scriptExitEarly the 'script.exit-early' configuration setting |
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* |
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* @return string |
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*/ |
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public static function writeStepScript(array $script, $scriptExitEarly = false) |
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{ |
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$buffer = "# this /bin/sh script is generated from a pipeline script\n"; |
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$buffer .= "set -e\n"; |
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$buffer .= 'test "$0" = "/bin/bash" && if [ -f ~/.bashrc ]; then source ~/.bashrc; fi' . "\n"; |
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$buffer .= self::generateScriptBody( |
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$script, |
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self::getLinePostCommand($scriptExitEarly) |
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); |
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return $buffer; |
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} |
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/** |
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* after command |
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* |
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* optional command after each line in a step script to more strictly |
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* check the last step script command exit status. |
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* |
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* for debugging purposes. |
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* |
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* @param bool $strict |
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* |
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* @return null|string |
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*/ |
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public static function getLinePostCommand($strict) |
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{ |
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return $strict ? '( r=$?; if [ $r -ne 0 ]; then exit $r; fi; ) || exit' . "\n" : null; |
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} |
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/** |
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* @param array|string[] $script |
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* @param null|string $afterCommand |
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* |
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* @return string |
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*/ |
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public static function generateScriptBody(array $script, $afterCommand = null) |
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{ |
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$buffer = ''; |
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foreach ($script as $line) { |
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$command = self::generateCommand($line); |
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$line && $buffer .= 'printf \'\\n\'' . "\n"; |
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$buffer .= 'printf \'\\035+ %s\\n\' ' . Lib::quoteArg($command) . "\n"; |
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$buffer .= $command . "\n"; |
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null !== $afterCommand && $buffer .= $afterCommand; |
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} |
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return $buffer; |
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} |
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/** |
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* @param null|array|string $line |
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* |
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* @return string |
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*/ |
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public static function generateCommand($line) |
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{ |
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$standard = is_scalar($line) || null === $line; |
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$pipe = is_array($line) && isset($line['pipe']) && is_string($line['pipe']); |
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if ($standard) { |
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/** @var null|float|int|string $line */ |
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return (string)$line; |
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} |
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$line = (array)$line; |
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$buffer = ''; |
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if ($pipe) { |
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$buffer .= "echo \"pipe: {$line['pipe']} (pending feature)\" # pipe feature is pending\n"; |
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if (isset($line['variables']) && is_array($line['variables'])) { |
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foreach ($line['variables'] as $name => $value) { |
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$buffer .= sprintf( |
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"printf %%s %s; printf '%%s ' %s; printf '\\n' \n", |
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Lib::quoteArg(" {$name} ({$value}): "), |
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$value |
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); |
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} |
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} |
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} |
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return $buffer; |
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} |
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} |
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ktomk /
pipelines
