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composer.lock | ||
phpunit.xml | ||
vendor |
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Copyright (c) 2012 Christophe Coevoet | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy | ||
of this software and associated documentation files (the "Software"), to deal | ||
in the Software without restriction, including without limitation the rights | ||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
copies of the Software, and to permit persons to whom the Software is furnished | ||
to do so, subject to the following conditions: | ||
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The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
THE SOFTWARE. |
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# Managing your ignored parameters with Composer | ||
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This tool allows you to manage your ignored parameters when running a composer | ||
install or update. It wokrs when storing the parameters in a Yaml file under | ||
a ``parameters`` key. | ||
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## Usage | ||
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In your root composer.json, adds the following: | ||
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```json | ||
{ | ||
"require": { | ||
"logsafe/composer-parameter-handler": "1.0.*" | ||
}, | ||
"scripts": { | ||
"post-install-cmd": [ | ||
"LogSafe\\ParameterHandler\\ScriptHandler::buildParameters" | ||
], | ||
"post-update-cmd": [ | ||
"LogSafe\\ParameterHandler\\ScriptHandler::buildParameters" | ||
] | ||
}, | ||
"extra": { | ||
"logsafe-parameters": { | ||
"file": "app/config/parameters.yml" | ||
} | ||
} | ||
} | ||
``` | ||
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The ``app/config/parameters.yml`` will then be created or updated by the | ||
composer script, to match the structure of the dist file ``app/config/parameters.yml.dist`` | ||
by asking you the missing parameters. | ||
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By default, the dist file is assumed to be in the same place than the parameters | ||
file, suffixed by ``.dist``. This can be changed in the configuration: | ||
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```json | ||
{ | ||
"extra": { | ||
"logsafe-parameters": { | ||
"file": "app/config/parameters.yml", | ||
"dist-file": "app/config/parameters.dist.yml" | ||
} | ||
} | ||
} | ||
``` | ||
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The script handler will ask you interactively for parameters which are missing | ||
in the parameters file, using the value of the dist file as default value. | ||
All prompted values are parsed as inline Yaml, to allow you to define ``true``, | ||
``false``, ``null`` or numbers easily. | ||
If composer is run in a non-interactive mode, the values of the dist file | ||
will be used for missing parameters. | ||
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## Using environment variables to set the parameters | ||
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For your prod environment, using an interactive prompt may not be possible | ||
when deploying. In this case, you can rely on environment variables to provide | ||
the parameters. This is achieved by providing a map between environment variables | ||
and the parameters they should fill: | ||
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```json | ||
{ | ||
"extra": { | ||
"logsafe-parameters": { | ||
"env-map": { | ||
"MY_FIRST_PARAM": "my_first_param", | ||
"MY_SECOND_PARAM": "my_second_param" | ||
} | ||
} | ||
} | ||
} | ||
``` | ||
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If an environment variable is set, its value will always replace the value | ||
set in the existing parameters file. | ||
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As environment variables can only be strings, they are also parsed as inline | ||
YAML values to allows specifying ``null``, ``false``, ``true`` or numbers | ||
easily. |
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<?php | ||
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namespace LogSafe\ParameterHandler; | ||
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use Composer\IO\IOInterface; | ||
use Composer\Script\Event; | ||
use Symfony\Component\Yaml\Inline; | ||
use Symfony\Component\Yaml\Parser; | ||
use Symfony\Component\Yaml\Yaml; | ||
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class ScriptHandler | ||
{ | ||
public static function buildParameters(Event $event) | ||
{ | ||
$extras = $event->getComposer()->getPackage()->getExtra(); | ||
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if (empty($extras['logsafe-parameters']['file'])) { | ||
throw new \InvalidArgumentException('The extra.logsafe-parameters.file setting is required to use this script handler.'); | ||
} | ||
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$realFile = $extras['logsafe-parameters']['file']; | ||
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if (empty($extras['logsafe-parameters']['dist-file'])) { | ||
$distFile = $realFile.'.dist'; | ||
} else { | ||
$distFile = $extras['logsafe-parameters']['dist-file']; | ||
} | ||
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if (!is_file($distFile)) { | ||
throw new \InvalidArgumentException(sprintf('The dist file "%s" does not exist. Check your dist-file config or create it.')); | ||
} | ||
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$exists = is_file($realFile); | ||
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$yamlParser = new Parser(); | ||
$io = $event->getIO(); | ||
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if ($exists) { | ||
$io->write('<info>Updating the parameters.yml file.</info>'); | ||
} else { | ||
$io->write('<info>Creating the parameters.yml file.</info>'); | ||
} | ||
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// Find the expected params | ||
$expectedValues = $yamlParser->parse(file_get_contents($distFile)); | ||
if (!isset($expectedValues['parameters'])) { | ||
throw new \InvalidArgumentException('The parameters.yml.dist file seems invalid.'); | ||
} | ||
$expectedParams = (array) $expectedValues['parameters']; | ||
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// find the actual params | ||
$actualValues = array('parameters' => array()); | ||
if ($exists) { | ||
$actualValues = array_merge($actualValues, $yamlParser->parse(file_get_contents($realFile))); | ||
} | ||
$actualParams = (array) $actualValues['parameters']; | ||
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// Remove the outdated params | ||
foreach ($actualParams as $key => $value) { | ||
if (!array_key_exists($key, $expectedParams)) { | ||
unset($actualParams[$key]); | ||
} | ||
} | ||
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$envMap = empty($extras['logsafe-parameters']['env-map']) ? array() : (array) $extras['logsafe-parameters']['env-map']; | ||
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// Add the params coming from the environment values | ||
$actualParams = array_replace($actualParams, self::getEnvValues($envMap)); | ||
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$actualParams = self::getParams($io, $expectedParams, $actualParams); | ||
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file_put_contents($realFile, "# This file is auto-generated during the composer install\n" . Yaml::dump(array('parameters' => $actualParams))); | ||
} | ||
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private static function getEnvValues(array $envMap) | ||
{ | ||
$params = array(); | ||
foreach ($envMap as $env => $param) { | ||
$value = getenv($env); | ||
if ($value) { | ||
$params[$param] = Inline::parse($value); | ||
} | ||
} | ||
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return $params; | ||
} | ||
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private static function getParams(IOInterface $io, array $expectedParams, array $actualParams) | ||
{ | ||
// Simply use the expectedParams value as default for the missing params. | ||
if (!$io->isInteractive()) { | ||
return array_replace($expectedParams, $actualParams); | ||
} | ||
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$isStarted = false; | ||
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foreach ($expectedParams as $key => $message) { | ||
if (array_key_exists($key, $actualParams)) { | ||
continue; | ||
} | ||
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if (!$isStarted) { | ||
$isStarted = true; | ||
$io->write('<comment>Some parameters are missing. Please provide them.</comment>'); | ||
} | ||
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$default = Inline::dump($message); | ||
$value = $io->ask(sprintf('<question>%s</question> (<comment>%s</comment>):', $key, $default), $default); | ||
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$actualParams[$key] = Inline::parse($value); | ||
} | ||
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return $actualParams; | ||
} | ||
} |
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{ | ||
"name": "logsafe/composer-parameter-handler", | ||
"description": "Composer script handling your ignored parameter file", | ||
"keywords": ["parameters management"], | ||
"homepage": "https://github.com/LogSafe/ParameterHandler", | ||
"license": "MIT", | ||
"authors": [ | ||
{ | ||
"name": "Christophe Coevoet", | ||
"email": "stof@notk.org" | ||
} | ||
], | ||
"minimum-stability": "dev", | ||
"require": { | ||
"php": ">=5.3.3", | ||
"symfony/yaml": ">=2.0,<2.3-dev" | ||
}, | ||
"require-dev": { | ||
"composer/composer": "*" | ||
}, | ||
"autoload": { | ||
"psr-0": { "LogSafe\\ParameterHandler": "" } | ||
}, | ||
"target-dir": "LogSafe/ParameterHandler", | ||
"extra": { | ||
"branch-alias": { | ||
"dev-master": "1.0.x-dev" | ||
} | ||
} | ||
} |