74 lines
1.9 KiB
PHP
74 lines
1.9 KiB
PHP
<?php
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class cli {
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protected ?array $commandsCache = null;
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public function __construct(
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protected string $ns
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) {}
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protected function usage($error = null): void {
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global $argv;
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if (!is_null($error))
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echo "error: {$error}\n\n";
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echo "Usage: $argv[0] COMMAND\n\nCommands:\n";
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foreach ($this->getCommands() as $c)
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echo " $c\n";
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exit(is_null($error) ? 0 : 1);
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}
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public function getCommands(): array {
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if (is_null($this->commandsCache)) {
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$funcs = array_filter(get_defined_functions()['user'], fn(string $f) => str_starts_with($f, $this->ns));
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$funcs = array_map(fn(string $f) => str_replace('_', '-', substr($f, strlen($this->ns.'\\'))), $funcs);
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$this->commandsCache = array_values($funcs);
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}
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return $this->commandsCache;
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}
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public function run(): void {
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global $argv, $argc;
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if (PHP_SAPI != 'cli')
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cli::die('SAPI != cli');
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if ($argc < 2)
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$this->usage();
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$func = $argv[1];
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if (!in_array($func, $this->getCommands()))
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self::usage('unknown command "'.$func.'"');
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$func = str_replace('-', '_', $func);
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call_user_func($this->ns.'\\'.$func);
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}
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public static function input(string $prompt): string {
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echo $prompt;
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$input = substr(fgets(STDIN), 0, -1);
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return $input;
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}
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public static function silentInput(string $prompt = ''): string {
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echo $prompt;
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system('stty -echo');
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$input = substr(fgets(STDIN), 0, -1);
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system('stty echo');
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echo "\n";
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return $input;
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}
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public static function die($error): void {
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self::error($error);
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exit(1);
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}
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public static function error($error): void {
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fwrite(STDERR, "error: {$error}\n");
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}
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} |