From 708b491d88515ed179de28cf115c802e2e62519d Mon Sep 17 00:00:00 2001
From: Klas Mellbourn <klas.mellbourn@klarna.com>
Date: Sun, 7 May 2017 22:43:10 +0200
Subject: [PATCH] fix for getting 'COMP_WORDS bad array subscript' on
 completing yadm

I stared getting these errors when pressing tab after 'yadm '. This seems to be due to COMP_CWORD being negative, so this is the fix I applied
---
 completion/yadm.bash_completion | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/completion/yadm.bash_completion b/completion/yadm.bash_completion
index e538cbc..a9a550f 100644
--- a/completion/yadm.bash_completion
+++ b/completion/yadm.bash_completion
@@ -9,8 +9,14 @@ if declare -F _git > /dev/null; then
   _yadm() {
 
     local current=${COMP_WORDS[COMP_CWORD]}
-    local penultimate=${COMP_WORDS[COMP_CWORD-1]}
-    local antepenultimate=${COMP_WORDS[COMP_CWORD-2]}
+    local penultimate
+    if (($COMP_WORDS > 0)); then
+      penultimate=${COMP_WORDS[COMP_CWORD-1]}
+    fi
+    local antepenultimate
+    if (($COMP_WORDS > 1)); then
+      antepenultimate=${COMP_WORDS[COMP_CWORD-2]}
+    fi
 
     local GIT_DIR
     # shellcheck disable=SC2034