add data_url fn

zsh/std.zsh

@@ -5,3 +5,22 @@ function skip() {
     shift
     tail -n +"$((n+1))" "$@"
 }
+
+# usage: data_url <file>
+# turn file into a data url
+data_url() {
+    if [ $# -eq 1 ]; then
+        file_path=$1
+        if [ -f "$file_path" ]; then
+            base64_data=$(base64 < "$file_path")
+            mime_type=$(file --mime-type -b "$file_path")
+            data_url="data:$mime_type;base64,$base64_data"
+            echo "$data_url"
+        else
+            echo "File not found: $file_path"
+        fi
+    else
+        echo "\$ data_url [FILE_PATH]"
+        echo "Turn data into a data URL"
+    fi
+}