--- /dev/null
+<?php
+
+
+namespace Stecman\Component\Symfony\Console\BashCompletion;
+
+class EnvironmentCompletionContext extends CompletionContext
+{
+ /**
+ * Set up completion context from the environment variables set by the parent shell
+ */
+ public function __construct()
+ {
+ $this->commandLine = getenv('CMDLINE_CONTENTS');
+ $this->charIndex = intval(getenv('CMDLINE_CURSOR_INDEX'));
+
+ if ($this->commandLine === false) {
+ $message = 'Failed to configure from environment; Environment var CMDLINE_CONTENTS not set.';
+
+ if (getenv('COMP_LINE')) {
+ $message .= "\n\nYou appear to be attempting completion using an out-dated hook. If you've just updated,"
+ . " you probably need to reinitialise the completion shell hook by reloading your shell"
+ . " profile or starting a new shell session. If you are using a hard-coded (rather than generated)"
+ . " hook, you will need to update that function with the new environment variable names."
+ . "\n\nSee here for details: https://github.com/stecman/symfony-console-completion/issues/31";
+ }
+
+ throw new \RuntimeException($message);
+ }
+ }
+
+ /**
+ * Use the word break characters set by the parent shell.
+ *
+ * @throws \RuntimeException
+ */
+ public function useWordBreaksFromEnvironment()
+ {
+ $breaks = getenv('CMDLINE_WORDBREAKS');
+
+ if (!$breaks) {
+ throw new \RuntimeException('Failed to read word breaks from environment; Environment var CMDLINE_WORDBREAKS not set');
+ }
+
+ $this->wordBreaks = $breaks;
+ }
+}