forked from Cavemanon/cavepaintings
68 lines
1.8 KiB
PHP
68 lines
1.8 KiB
PHP
<?php
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declare(strict_types=1);
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// Provides mechanisms for cleanly executing command-line applications
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// Was created to try to centralize a solution for whatever caused this:
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// quotes are only needed if the path to convert contains a space; some other times, quotes break things, see github bug #27
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class CommandBuilder
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{
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private string $executable;
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private array $args = [];
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public array $output;
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public function __construct(String $executable)
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{
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if (empty($executable)) {
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throw new InvalidArgumentException("executable cannot be empty");
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}
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$this->executable = $executable;
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}
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public function add_flag(string $value): void
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{
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$this->args[] = $value;
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}
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public function add_escaped_arg(string $value): void
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{
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$this->args[] = escapeshellarg($value);
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}
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public function generate(): string
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{
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$command = escapeshellarg($this->executable);
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if (!empty($this->args)) {
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$command .= " ";
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$command .= join(" ", $this->args);
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}
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return escapeshellcmd($command)." 2>&1";
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}
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public function combineOutput(string $empty_output = ""): string
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{
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if (empty($this->output)) {
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return $empty_output;
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} else {
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return implode("\r\n", $this->output);
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}
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}
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public function execute(bool $fail_on_non_zero_return = false): int
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{
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$cmd = $this->generate();
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exec($cmd, $this->output, $ret);
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$output = $this->combineOutput("nothing");
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log_debug('command_builder', "Command `$cmd` returned $ret and outputted $output");
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if ($fail_on_non_zero_return&&(int)$ret!==(int)0) {
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throw new SCoreException("Command `$cmd` failed, returning $ret and outputting $output");
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}
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return $ret;
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}
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}
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