packaging stuff up

pkgs/tools/misc/docker-cleanup/docker-cleanup.sh

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+#!/bin/sh
+
+# Stop all containers
+if [ "$(docker ps -a -q)" ]; then
+    echo "Stopping docker containers..."
+    docker stop "$(docker ps -a -q)"
+else
+    echo "No running docker containers."
+fi
+
+# Remove all stopped containers
+if [ "$(docker ps -a -q)" ]; then
+    echo "Removing docker containers..."
+    docker rm "$(docker ps -a -q)"
+else
+    echo "No stopped docker containers."
+fi
+
+# Remove all untagged images
+if docker images | grep -q "^<none>"; then
+    docker rmi "$(docker images | grep "^<none>" | awk '{print $3}')"
+else
+    echo "No untagged docker images."
+fi
+
+echo "Cleaned up docker."

pkgs/tools/misc/docker-cleanup/package.nix

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+{ pkgs, ... }:
+
+pkgs.writeShellApplication {
+  name = "docker-cleanup";
+  runtimeInputs = [
+    pkgs.docker-client
+    pkgs.gawk
+    pkgs.gnugrep
+  ];
+  text = builtins.readFile ./docker-cleanup.sh;
+}