/**
* Replace one or more value pairs in a configuration file.
*
* @param string $file Path to the file containing the string to replace.
* @param array $valuePairs Containing 'old' => 'new' values.
* @param bool $root True to write new file as root
* @return boolean True if the file was updated successfully
*/
public static function updateConfigFile($file, $valuePairs, $root = false)
{
Log::debug("* Updating config file {$file}");
if (!file_exists($file)) {
Log::error("* Cannot replace values in non-existent file {$file}");
return false;
}
$content = file_get_contents($file);
# replace and count so we can log meaningfully
foreach ($valuePairs as $old => $new) {
$content = str_replace($old, $new, $content, $count);
if ($count == 0) {
Log::warning("* Skipping: nothing to replace, `{$old}` could not be found");
return true;
} else {
Log::debug("* Replaced {$count} occurences of `{$old}`");
}
}
# Update file
if (!$root) {
$result = file_put_contents($file, $content);
if (!$result) {
Log::error("* Error writing to config file: " . error_get_last());
return false;
}
} else {
$Execute = new CakeboxExecute();
if (!$Execute->shell("echo '{$content}' | sudo tee {$file}", 'root')) {
return false;
}
}
Log::info("* Successfully updated config file");
return true;
}
