Functions min_jpg and min_png work on multiple files

dot_config/profile/profile.d/functions.sh.tmpl

@@ -95,19 +95,25 @@ command_installed() (
 min_jpg() (
 	set -ue
 	command_installed jpegtran
-	file=$1
-	out_file=$(mktemp)
-	jpegtran -optimize -perfect -outfile "$out_file" "$file"
-	mv "$out_file" "$file"
+	for FILE in "$@" ; do
+		PERMISSIONS=$(stat --format '%a' "${FILE}")
+		OUT_FILE=$(mktemp)
+		jpegtran -optimize -perfect -outfile "${OUT_FILE}" "${FILE}"
+		mv "${OUT_FILE}" "${FILE}"
+		chmod "${PERMISSIONS}" "${FILE}"
+	done
 )
 
 min_png() (
 	set -ue
 	command_installed pngcrush
-	out_file=$(mktemp)
-	file=$1
-	pngcrush -rem alla -reduce -brute "$file" "$out_file"
-	mv "$out_file" "$file"
+	for FILE in "$@" ; do
+		PERMISSIONS=$(stat --format '%a' "${FILE}")
+		OUT_FILE=$(mktemp)
+		pngcrush -rem alla -reduce -brute "${FILE}" "${OUT_FILE}"
+		mv "${OUT_FILE}" "${FILE}"
+		chmod "${PERMISSIONS}" "${FILE}"
+	done
 )
 
 get_create_date() (