aleph1.co.uk Git - yaffs-website/blob - vendor/stecman/symfony-console-completion/src/EnvironmentCompletionContext.php

   1 <?php
   2
   3
   4 namespace Stecman\Component\Symfony\Console\BashCompletion;
   5
   6 class EnvironmentCompletionContext extends CompletionContext
   7 {
   8     /**
   9      * Set up completion context from the environment variables set by the parent shell
  10      */
  11     public function __construct()
  12     {
  13         $this->commandLine = getenv('CMDLINE_CONTENTS');
  14         $this->charIndex = intval(getenv('CMDLINE_CURSOR_INDEX'));
  15
  16         if ($this->commandLine === false) {
  17             $message = 'Failed to configure from environment; Environment var CMDLINE_CONTENTS not set.';
  18
  19             if (getenv('COMP_LINE')) {
  20                 $message .= "\n\nYou appear to be attempting completion using an out-dated hook. If you've just updated,"
  21                             . " you probably need to reinitialise the completion shell hook by reloading your shell"
  22                             . " profile or starting a new shell session. If you are using a hard-coded (rather than generated)"
  23                             . " hook, you will need to update that function with the new environment variable names."
  24                             . "\n\nSee here for details: https://github.com/stecman/symfony-console-completion/issues/31";
  25             }
  26
  27             throw new \RuntimeException($message);
  28         }
  29     }
  30
  31     /**
  32      * Use the word break characters set by the parent shell.
  33      *
  34      * @throws \RuntimeException
  35      */
  36     public function useWordBreaksFromEnvironment()
  37     {
  38         $breaks = getenv('CMDLINE_WORDBREAKS');
  39
  40         if (!$breaks) {
  41             throw new \RuntimeException('Failed to read word breaks from environment; Environment var CMDLINE_WORDBREAKS not set');
  42         }
  43
  44         $this->wordBreaks = $breaks;
  45     }
  46 }