test: fix broken unused-media test

Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>

Dockerfile

@@ -110,10 +110,7 @@ RUN htmltest
 FROM alpine:${ALPINE_VERSION} AS unused-media
 RUN apk add --no-cache fd ripgrep
 WORKDIR /test
-RUN --mount=type=bind,target=. <<"EOT"
-set -ex
-./hack/test/unused_media
-EOT
+RUN --mount=type=bind,target=. ./hack/test/unused_media
 
 # path-warnings checks for duplicate target paths
 FROM build-base AS path-warnings

hack/test/unused_media

@@ -1,23 +1,33 @@
 #!/usr/bin/env sh
 
-# Find all media files {svg,png,webp,mp4,jpg,jpeg} in {content,static}
-MEDIA=$(fd . -e "svg" -e "png" -e "webp" -e "mp4" -e "jpg" -e "jpeg" ./content ./static)
-TEMPFILE=$(mktemp)
+echo "checking for unused media files..."
+FORMATS="svg png webp mp4 jpg jpeg"
+DIRECTORIES="content static"
+
+FORMAT_FLAGS=""
+for format in $FORMATS; do
+  FORMAT_FLAGS="$FORMAT_FLAGS -e $format"
+done
+
+echo "Searching for media with formats: $FORMATS"
+echo "Searching in directories: $DIRECTORIES"
+
+MEDIA=$(fd . $FORMAT_FLAGS $DIRECTORIES)
+
+UNUSED_COUNT=0
 
 for file in $MEDIA; do
-  rg -q "$(basename $file)"
+  rg -q "$(basename $file)" .
   if [ $? -ne 0 ]; then
-    echo "$file" >> "$TEMPFILE"
+    echo "$file"
+    UNUSED_COUNT=$((UNUSED_COUNT + 1))
   fi
 done
 
-UNUSED_FILES=$(< $TEMPFILE)
-rm $TEMPFILE
-
-if [ -z "$UNUSED_FILES" ]; then
+if [ $UNUSED_COUNT -eq 0 ]; then
+  echo "No unused media files."
   exit 0
 else
-  echo "$(echo "$UNUSED_FILES" | wc -l) unused media files. Please remove them."
-  printf "%s\n" ${UNUSED_FILES[@]}
+  echo "$UNUSED_COUNT unused media files found. Please remove them."
   exit 1
 fi