From 773efb25e07179bf8f935e368c5dbc000f6f644e Mon Sep 17 00:00:00 2001
From: Koichi Murase <myoga.murase@gmail.com>
Date: Wed, 22 Feb 2023 15:06:14 +0900
Subject: [PATCH] tools/upgrade: Apply the same changes as "tools/install.sh"

---
 tools/upgrade.sh | 43 +++++++++++++++++++++++--------------------
 1 file changed, 23 insertions(+), 20 deletions(-)

diff --git a/tools/upgrade.sh b/tools/upgrade.sh
index a4d0d9d..a9c31ec 100644
--- a/tools/upgrade.sh
+++ b/tools/upgrade.sh
@@ -3,27 +3,27 @@
 function _omb_upgrade {
   # Use colors, but only if connected to a terminal, and that terminal
   # supports them.
+  local ncolors=
   if type -P tput &>/dev/null; then
-    local ncolors=$(tput colors)
+    ncolors=$(tput colors)
   fi
 
+  local RED GREEN BLUE BOLD NORMAL
   if [[ -t 1 && $ncolors && $ncolors -ge 8 ]]; then
-    local RED=$(tput setaf 1)
-    local GREEN=$(tput setaf 2)
-    local YELLOW=$(tput setaf 3)
-    local BLUE=$(tput setaf 4)
-    local BOLD=$(tput bold)
-    local NORMAL=$(tput sgr0)
+    RED=$(tput setaf 1 2>/dev/null || tput AF 1 2>/dev/null)
+    GREEN=$(tput setaf 2 2>/dev/null || tput AF 2 2>/dev/null)
+    BLUE=$(tput setaf 4 2>/dev/null || tput AF 4 2>/dev/null)
+    BOLD=$(tput bold 2>/dev/null || tput md 2>/dev/null)
+    NORMAL=$(tput sgr0 2>/dev/null || tput me 2>/dev/null)
   else
-    local RED=""
-    local GREEN=""
-    local YELLOW=""
-    local BLUE=""
-    local BOLD=""
-    local NORMAL=""
+	  RED=""
+	  GREEN=""
+	  BLUE=""
+	  BOLD=""
+	  NORMAL=""
   fi
 
-  printf "${BLUE}%s${NORMAL}\n" "Updating Oh My Bash"
+  printf '%s\n' "${BLUE}Updating Oh My Bash${NORMAL}"
 
   # Note: The git option "-C PATH" is only supported from git-1.8.5
   # (https://github.com/git/git/commit/44e1e4d6 2013-09).  On the other hand,
@@ -41,16 +41,19 @@ function _omb_upgrade {
   fi
 
   printf '%s' "$GREEN"
-  printf '%s\n' '         __                          __               __  '
-  printf '%s\n' '  ____  / /_     ____ ___  __  __   / /_  ____ ______/ /_ '
-  printf '%s\n' ' / __ \/ __ \   / __ `__ \/ / / /  / __ \/ __ `/ ___/ __ \'
-  printf '%s\n' '/ /_/ / / / /  / / / / / / /_/ /  / /_/ / /_/ (__  ) / / /'
-  printf '%s\n' '\____/_/ /_/  /_/ /_/ /_/\__, /  /_.___/\__,_/____/_/ /_/ '
-  printf '%s\n' '                        /____/                            '
+  # shellcheck disable=SC1003,SC2016
+  printf '%s\n' \
+    '         __                          __               __  ' \
+    '  ____  / /_     ____ ___  __  __   / /_  ____ ______/ /_ ' \
+    ' / __ \/ __ \   / __ `__ \/ / / /  / __ \/ __ `/ ___/ __ \' \
+    '/ /_/ / / / /  / / / / / / /_/ /  / /_/ / /_/ (__  ) / / /' \
+    '\____/_/ /_/  /_/ /_/ /_/\__, /  /_.___/\__,_/____/_/ /_/ ' \
+    '                        /____/                            '
   printf "${BLUE}%s\n" "Hooray! Oh My Bash has been updated and/or is at the current version."
   printf "${BLUE}${BOLD}%s${NORMAL}\n" "To keep up on the latest news and updates, follow us on GitHub: https://github.com/ohmybash/oh-my-bash"
   if [[ $- == *i* ]]; then
     declare -f _omb_util_unload &>/dev/null && _omb_util_unload
+    # shellcheck disable=SC1090
     source ~/.bashrc
   fi
 }