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<?php |
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/* |
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* This file is part of the Divergence package. |
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* |
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* (c) Henry Paradiz <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Divergence\CLI; |
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use Divergence\CLI\Command; |
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class ConfigWriter |
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{ |
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/* |
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* get source |
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*/ |
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public static function get_source($filename) |
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{ |
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return file_get_contents($filename); |
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} |
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public static function set_source($filename, $source) |
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{ |
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return file_put_contents($filename, $source); |
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} |
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/* |
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* get PHP tokens from filename |
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*/ |
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public static function get_tokens($filename) |
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{ |
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return token_get_all(static::get_source($filename)); |
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} |
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/* |
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* Rewrites db config based on passed in label and config |
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*/ |
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public static function configWriter($label, $config) |
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{ |
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$climate = Command::getClimate(); |
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$climate->info(sprintf('Writing config: %s', $label)); |
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$existing = Env::getConfig(getcwd(), 'db'); |
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if ($existing[$label]) { |
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$newConfig = static::editConfig($label, $config); |
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} else { |
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// TODO: create new append |
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} |
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static::set_source(getcwd().'/config/db.php', $newConfig); |
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} |
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/* |
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* Tokenizes a config file replacing only the tokens we want to change and converts it back to PHP source |
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* |
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* @returns string Divergence DB Config (PHP source code) |
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*/ |
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public static function editConfig($label, $config) |
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{ |
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$climate = Command::getClimate(); |
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$climate->info('Config already exists so we need to rewrite.'); |
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$filename = getcwd().'/config/db.php'; |
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$tokens = static::get_tokens($filename); |
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foreach ($config as $setting=>$value) { |
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$tokens = ConfigWriter::tokenizedConfigValueRewriter($tokens, $label, $setting, $value); |
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} |
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return static::tokensToString($tokens); |
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} |
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/* |
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* Safely edits config tokens without changing human edits |
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* |
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* @returns array Edited tokens |
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*/ |
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public static function tokenizedConfigValueRewriter($tokens, $label, $setting, $value) |
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{ |
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$climate = Command::getClimate(); |
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// find the key value pair we want in the existing config |
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$found = static::findConfigKeyValuePairAsTokens($tokens, $label, $setting); |
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if ($found) { |
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$climate->info(sprintf('Rewriting tokens: %s[\'%s\'] = %s;', $label, $setting, $value)); // make for verbose mode |
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// replace tokens and rebuild PHP file |
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$index = $found['value']['index']; |
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$token = $found['value']['token']; |
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$value = addslashes($value); |
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$token[1] = "'$value'"; |
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$tokens[$index] = $token; |
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} else { |
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// TODO: label exists but no key => value pair, create a new one at the end |
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} |
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return $tokens; |
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} |
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/* |
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* Converts tokens to PHP source code |
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* |
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* @param array $tokens Tokens in same format returned by token_get_all() |
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* @returns string PHP source code |
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*/ |
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public static function tokensToString($tokens) |
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{ |
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$output; |
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foreach ($tokens as $token) { |
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if (is_array($token)) { |
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$output .= $token[1]; |
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} else { |
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$output .= $token; |
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} |
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} |
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return $output; |
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} |
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/* |
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* Locates the key and value for the specific db config setting we want |
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*/ |
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public static function findConfigKeyValuePairAsTokens($tokens, $label, $setting) |
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{ |
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//$climate = Command::getClimate(); |
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$depth = 0; |
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$returnTokens = []; |
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foreach ($tokens as $key=>$token) { |
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if ($token == '[') { |
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$depth++; |
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continue; |
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} |
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// find config label |
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if ($depth === 1 && $token[0]==323) { // T_CONSTANT_ENCAPSED_STRING |
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$strValue = substr($token[1], 1, -1); |
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if ($strValue == $label) { |
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$labelLine = $token[2]; // remember line # where the config we care about starts |
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$nextKey = true; |
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} |
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} |
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// find key value pair |
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if ($labelLine) { |
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if ($depth === 2 && $token[0]==323) { |
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if ($nextKey) { |
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$nextKey = false; |
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// found key for setting |
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$strValue = substr($token[1], 1, -1); |
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if ($strValue === $setting) { |
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$returnTokens['key'] = ['token'=>$token,'index'=>$key]; |
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//$climate->out(sprintf('Found key <yellow>%s</yellow> at line <green>%s</green>',$token[1],$token[2])); // make verbose mode |
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continue; |
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} |
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} else { |
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// next value once setting is found is the value we want |
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if ($returnTokens['key']) { |
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$strValue = substr($token[1], 1, -1); |
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//$climate->out(sprintf('Found value <yellow>%s</yellow> at line <green>%s</green>',$token[1],$token[2])); // make verbose mode |
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$returnTokens['value'] = ['token'=>$token,'index'=>$key]; |
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return $returnTokens; |
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} |
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$nextKey = true; |
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} |
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} |
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} |
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// keep track of closing brackets so we can ignore things |
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if ($token == ']') { |
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$depth--; |
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if ($depth === 1) { |
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unset($labelLine); // clear line number once we detect the end |
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} |
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} |
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} |
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} |
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} |
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Divergence /
cli
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