first cut at script to do stuff with xml string resources, e.g. find strings that aren't used

xwords4/android/scripts/strings_check.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+
+set -u -e
+
+declare -A ENG_IDS
+LOCS=""
+SEARCH_SOURCE=""
+
+ENG=~/dev/git/ANDROID_BRANCH/xwords4/android/XWords4/res/values/strings.xml
+
+usage() {
+    echo "usage: $0 [--loc <path_to_strings.xml>]*" >&2
+    exit 1
+}
+
+list_ids() {
+    XML_FILE=$1
+    xmlstarlet sel -T -t -m "/resources/string" -v @name -o " " $XML_FILE
+}
+
+while [ $# -gt 0 ]; do
+    case $1 in
+        --loc)
+            [ $# -gt 1 ] || usage
+            [ -e $2 ] || usage
+            LOCS="$LOCS $2"
+            shift
+            ;;
+        *)
+            usage
+            ;;
+    esac
+    shift
+done
+
+# echo "checking $ENG for ids not in any .java file"
+for ID in $(list_ids $ENG); do
+    ENG_IDS[$ID]=1
+done
+
+if [ -n "$SEARCH_SOURCE" ]; then
+    if grep -q R.string.$ID $(find . -name '*.java'); then
+        :
+    elif grep -q "@string/$ID" $(find . -name '*.xml'); then
+        :
+    else
+        echo "$ID appears to be unused"
+    fi
+fi
+
+
+for LOC in $LOCS; do
+    IDS="${!ENG_IDS[*]}"
+    for ID in $IDS; do
+        grep -q $ID $LOC || echo "$ID not found in $LOC"
+    done
+done