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import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,

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sudo date +"%d%m%Y%H%M%S" -s "$(curl -v --insecure --silent https://google.com/ 2>&1 | grep -i -E -w '^< date\:' | sed -e 's/< date: //gI')"

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NAME='container-name'

# Things to know and understand
# - Docker needs to run at least one process inside, this is the command (CMD in Dockerfile)
#   that defines the lifetime of the container
# - Docker will stop the container if the CMD stops
# - It is possible to run multiple processes inside one container (like from a shell)
# - Supervisor is a recommended tool to spawn and manage many processes

# Create + Run (run always creates a new container)

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## Exception handling
try:
  raise newException(IOError, "the drive is dirty")
except IOError:
  echo "I/O error: " & getCurrentExceptionMsg()

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# Memory leak check
valgrind --tool=memcheck --leak-check=full --show-leak-kinds=all program_name

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# Warning: not GC-safe: 't' [GcUnsafe] -- generated when using objects (t here) that have closures as member.
# Compile with --threads:on

type
  TTTTT = object
    onCalled: proc(i: int) {.closure.}

var
  t: TTTTT                                 # <== This is GCed, so the whole 't' instance is not gcsafe
  x = 0