[arch-projects] [devtools] [PATCH 7/8] lib/common.sh: Adjust to work properly with `set -u`.

[lukeshu]

From: Luke Shumaker <luke...@parabola.nu>

---
 lib/common.sh | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/common.sh b/lib/common.sh
index 19aa7de..4536668 100644
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -1,4 +1,5 @@
 #!/hint/bash
+# This may be included with or without `set -euE`
 
 # License: Unspecified
 
@@ -8,7 +9,7 @@ export LANG=C
 shopt -s extglob
 
 # check if messages are to be printed using color
-unset ALL_OFF BOLD BLUE GREEN RED YELLOW
+declare ALL_OFF='' BOLD='' BLUE='' GREEN='' RED='' YELLOW=''
 if [[ -t 2 ]]; then
        # prefer terminal safe colored and bold text when tput is supported
        if tput setaf 0 &>/dev/null; then
@@ -65,14 +66,14 @@ stat_done() {
 
 _setup_workdir=false
 setup_workdir() {
-       [[ -z $WORKDIR ]] && WORKDIR=$(mktemp -d --tmpdir "${0##*/}.XXXXXXXXXX")
+       [[ -z ${WORKDIR:-} ]] && WORKDIR=$(mktemp -d --tmpdir 
"${0##*/}.XXXXXXXXXX")
        _setup_workdir=true
        trap 'trap_abort' INT QUIT TERM HUP
        trap 'trap_exit' EXIT
 }
 
 cleanup() {
-       if [[ -n $WORKDIR ]] && $_setup_workdir; then
+       if [[ -n ${WORKDIR:-} ]] && $_setup_workdir; then
                rm -rf "$WORKDIR"
        fi
        exit ${1:-0}
-- 
2.12.1