Allow bind address override (#53)

whoogle-search

@@ -3,23 +3,22 @@
 # ./whoogle-search # Runs the full web app
 # ./whoogle-search test # Runs the testing suite
 
-SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
+set -euo pipefail
 
-# Set default port if unavailable
-if [[ -z "${PORT}" ]]; then
-    PORT="${EXPOSE_PORT:-5000}"
-fi
+SCRIPT_DIR="$(builtin cd "$(dirname "${BASH_SOURCE[0]}")" && pwd -P)"
 
 # Set directory to serve static content from
-[[ ! -z $1 ]] && SUBDIR="$1" || SUBDIR="app"
-export APP_ROOT=$SCRIPT_DIR/$SUBDIR
-export STATIC_FOLDER=$APP_ROOT/static
+SUBDIR="${1:-app}"
+export APP_ROOT="$SCRIPT_DIR/$SUBDIR"
+export STATIC_FOLDER="$APP_ROOT/static"
 
-mkdir -p $STATIC_FOLDER
+mkdir -p "$STATIC_FOLDER"
 
 # Check for regular vs test run
-if [[ $SUBDIR == "test" ]]; then
+if [[ "$SUBDIR" == "test" ]]; then
     pytest -sv
 else
-    python3 -um app --host 0.0.0.0 --port $PORT
+    python3 -um app \
+      --host "${ADDRESS:-0.0.0.0}" \
+      --port "${PORT:-"${EXPOSE_PORT:-5000}"}"
 fi