pkgs: init urlencode

krebs/5pkgs/simple/urlencode/default.nix

@@ -0,0 +1,22 @@
+{ jq, gnused, writeBashBin, ... }:
+
+writeBashBin "urlencode" ''
+  set -efu
+
+  decode() {
+    printf %b "$(${gnused}/bin/sed 's/ /+/g; s/%/\\x/g')"
+  }
+
+  encode() {
+    ${jq}/bin/jq -Rr '@uri "\(.)"'
+  }
+
+  # shellcheck disable=SC2048
+  case $* in
+    -d) decode;;
+    "") encode;;
+    *)
+      echo "$0: error: your argument is invalid" >&2
+      exit 1
+  esac
+''