Read a json-formatted config from a file and overwrite some fields. More...

Collaboration diagram for ILIAS\Setup\CLI\ConfigReader:

Public Member Functions
	__construct ($base_dir=null)

	readConfigFile (string $name, array $overwrites=[])
	TODO: We could use the "give me a transformation and I'll give you your result" pattern from the input paper here. More...

Protected Member Functions
	applyOverwrites (array $json, array $overwrites)

	getRealFilename (string $name)

Protected Attributes
	$base_dir

Detailed Description

Read a json-formatted config from a file and overwrite some fields.

Definition at line 17 of file ConfigReader.php.

Constructor & Destructor Documentation

◆ __construct()

ILIAS\Setup\CLI\ConfigReader::__construct ( $base_dir = null )

Definition at line 24 of file ConfigReader.php.

    {
        $this->base_dir = $base_dir ?? getcwd();
    }

References ILIAS\Setup\CLI\ConfigReader\$base_dir.

Member Function Documentation

◆ applyOverwrites()

ILIAS\Setup\CLI\ConfigReader::applyOverwrites	(	array	$json,
		array	$overwrites
	)

protected

Definition at line 55 of file ConfigReader.php.

                                                                       : array
    {
        $replacer = null;
        $replacer = function ($subject, $path, $value) use (&$replacer) {
            if (count($path) === 0) {
                return $value;
            }
            $cur = array_shift($path);
            $subject[$cur] = $replacer($subject[$cur], $path, $value);
            return $subject;
        };
 
        foreach ($overwrites as $path => $value) {
            $path = explode(".", $path);
            $json = $replacer($json, $path, $value);
        }
 
        return $json;
    }

Referenced by ILIAS\Setup\CLI\ConfigReader\readConfigFile().

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◆ getRealFilename()

ILIAS\Setup\CLI\ConfigReader::getRealFilename ( string $name )

protected

Definition at line 75 of file ConfigReader.php.

                                                     : string
    {
        if (in_array($name[0], ["/", "\\"])) {
            return $name;
        }
        return $this->base_dir . "/" . $name;
    }

References $name.

Referenced by ILIAS\Setup\CLI\ConfigReader\readConfigFile().

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◆ readConfigFile()

ILIAS\Setup\CLI\ConfigReader::readConfigFile	(	string	$name,
		array	$overwrites = `[]`
	)

TODO: We could use the "give me a transformation and I'll give you your result" pattern from the input paper here.

Parameters

array $overwrites is a list of fields that should be overwritten with with the contained variables. The keys define which field (e.g. "a.b.c") should be overwritten with which value.

Definition at line 38 of file ConfigReader.php.

                                                                         : array
    {
        $name = $this->getRealFilename($name);
        if (!file_exists($name) || !is_readable($name)) {
            throw new \InvalidArgumentException(
                "Config-file '$name' does not exist or is not readable."
            );
        }
        $json = json_decode(file_get_contents($name), JSON_OBJECT_AS_ARRAY);
        if (!is_array($json)) {
            throw new \InvalidArgumentException(
                "Could not find JSON-array in '$name'."
            );
        }
        return $this->applyOverwrites($json, $overwrites);
    }