simplify script a bit

Author: henderkes

src/SPC/store/scripts/zig-cc.sh

@@ -1,31 +1,23 @@
 #!/usr/bin/env bash
 
 SCRIPT_DIR="$(dirname "${BASH_SOURCE[0]}")"
-BUILDROOT_ABS="$(realpath "$SCRIPT_DIR/../../buildroot/include" 2>/dev/null || echo "")"
+BUILDROOT_ABS="$(realpath "$SCRIPT_DIR/../../buildroot/include" 2>/dev/null || true)"
 PARSED_ARGS=()
 
 while [[ $# -gt 0 ]]; do
     case "$1" in
         -isystem)
             shift
             ARG="$1"
-            [[ -n "$ARG" ]] && shift || break
-            ARG_ABS="$(realpath "$ARG" 2>/dev/null || echo "")"
-            if [[ -n "$ARG_ABS" && "$ARG_ABS" == "$BUILDROOT_ABS" ]]; then
-                PARSED_ARGS+=("-I$ARG")
-            else
-                PARSED_ARGS+=("-isystem" "$ARG")
-            fi
+            shift
+            ARG_ABS="$(realpath "$ARG" 2>/dev/null || true)"
+            [[ "$ARG_ABS" == "$BUILDROOT_ABS" ]] && PARSED_ARGS+=("-I$ARG") || PARSED_ARGS+=("-isystem" "$ARG")
             ;;
         -isystem*)
             ARG="${1#-isystem}"
             shift
-            ARG_ABS="$(realpath "$ARG" 2>/dev/null || echo "")"
-            if [[ -n "$ARG_ABS" && "$ARG_ABS" == "$BUILDROOT_ABS" ]]; then
-                PARSED_ARGS+=("-I$ARG")
-            else
-                PARSED_ARGS+=("-isystem$ARG")
-            fi
+            ARG_ABS="$(realpath "$ARG" 2>/dev/null || true)"
+            [[ "$ARG_ABS" == "$BUILDROOT_ABS" ]] && PARSED_ARGS+=("-I$ARG") || PARSED_ARGS+=("-isystem$ARG")
             ;;
         *)
             PARSED_ARGS+=("$1")
@@ -34,16 +26,13 @@ while [[ $# -gt 0 ]]; do
     esac
 done
 
-TARGET=""
-if [ -n "$SPC_TARGET" ]; then
-    TARGET="-target $SPC_TARGET"
-fi
+[[ -n "$SPC_TARGET" ]] && TARGET="-target $SPC_TARGET" || TARGET=""
 
 output=$(zig cc $TARGET $COMPILER_EXTRA "${PARSED_ARGS[@]}" 2>&1)
 status=$?
 
-if [ $status -ne 0 ] && echo "$output" | grep -q "version '.*' in target triple"; then
-    output=$(echo "$output" | grep -v "version '.*' in target triple")
+if [[ $status -ne 0 ]] && grep -q "version '.*' in target triple" <<< "$output"; then
+    output=$(grep -v "version '.*' in target triple" <<< "$output")
     status=0
 fi