saml

// Utilities for express.

/**
 * Wraps request handler and calls next() on error.
 * @param {Function} reqHandler express request handler. It doesn't have to return Promise.
 */
function asyncWrap(reqHandler) {
    async function handlerWrap(req, res, next) {
        try {
            // reqHandler might not return Promise. So, can't do reqHandler().catch();

saml

FROM mhart/alpine-node:12.2 as builder
# Do crazy stuff

FROM mhart/alpine-node:12.2 as app
WORKDIR /app
RUN apk add --no-cache tini

# Can I use a single COPY?
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package*.json ./

saml

#!/bin/bash

REPOS=(foo bar)

git_up() {
        if (( $# > 0 ))
        then
                repos=$@
        else
                repos=${REPOS[@]}

saml

async (next) => {
  const x = await f1();
  if (x) {
    return next();
  }
  f2(() => {
    f3();
    next();
  });
  // fails eslint  consistent-return

saml

ARG UID
RUN usermod -u $UID www-data 

saml

"""
# / is field access.
# .get() is unwrapping value.

# Invalid field access is ignored and returns None.
>>> (Wrap(1) / 'a' / 0 / 'b').get()

# You may specify default value in case invalid field was accessed.
>>> (Wrap(1) / 'a' / 0 / 'b').get(True)
True

saml

hello 
\```
   world
\```

yolo

saml

from typing import Optional 
 
a: Optional[str] = None 
def init(): 
    global a 
    a = 'abc' 
def g() -> str:  # supposed to be called after calling init() 
    return a 
# $ mypy a.py 
# a.py:8: error: Incompatible return value type (got "Optional[str]", expected "str")

saml

create table task(
  id int primary key,
  status varchar(10)
);

create table subtask(
  id int primary key,
  task_id int references task(id),
  status varchar(10)
);

saml

foo:
	@false
	@echo 1 # I want this to execute