Merge pull request #78 from wp-cli/copilot/fix-1570774-85307675-a3581af5-4b01-4bc1-9e7d-38e6e62dd0d1

Author: swissspidy

features/shell.feature

@@ -60,3 +60,20 @@ Feature: WordPress REPL
       bool(true)
       """
     And STDERR should be empty
+
+  Scenario: Input starting with dash
+    Given a WP install
+    And a session file:
+      """
+      -1
+      """
+
+    When I run `wp shell --basic < session`
+    Then STDOUT should contain:
+      """
+      int(-1)
+      """
+    And STDERR should not contain:
+      """
+      history: -1: invalid option
+      """

src/WP_CLI/Shell/REPL.php

@@ -137,7 +137,7 @@ private static function create_prompt_cmd( $prompt, $history_path ) {
 			. 'LINE=""; '
 			. "read -re -p {$prompt} LINE; "
 			. '[ $? -eq 0 ] || exit; '
-			. 'history -s "$LINE"; '
+			. 'history -s -- "$LINE"; '
 			. "history -w {$history_path}; "
 			. 'echo $LINE; ';