v-kolesnikov

/**
* @brief executeQueriesFromFile Read each line from a .sql QFile
* (assumed to not have been opened before this function), and when ; is reached, execute
* the SQL gathered until then on the query object. Then do this until a COMMIT SQL
* statement is found. In other words, this function assumes each file is a single
* SQL transaction, ending with a COMMIT line.
*/

void executeQueriesFromFile(QFile *file, QSqlQuery *query)
{

v-kolesnikov

Конфиги

• Мой .vimrc
• http://dotfiles.org/.vimrc

Навигация

Различные способы перехода в режим вставки

i " вставить текст до курсора

v-kolesnikov

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

v-kolesnikov

FROM hexlet/hexlet-base

RUN apt-install python-pip python-dev
RUN apt-install python3-pip python3-dev
RUN pip3 install pytest

ENV PYTHONDONTWRITEBYTECODE 1

v-kolesnikov

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors

v-kolesnikov

(ns slack
  (:require [clj-http.client :as client]
            [clojure.data.json :as json]))

(defn send-to-slack
  "Sends a simple message to slack using an 'incoming webhook'.
   url will be of form: https://myapp.slack.com/services/hooks/incoming-webhook?token=mytoken .
   (Exact url you should use will appear on the slack integration page)
   text will be any valid message.
   This implementation could be expanded if you wanted to specify channel, username, etc.

v-kolesnikov

I heard from GitHub Two-Factor Authentication](https://github.com/blog/1614-two-factor-authentication) nearly a couple of days ago when I was reading my RSS feed. I enabled it and couldn' push to any of my repositories anymore. Learn in this blog post how to fix it.

Two-Factor Authentication

"Is a process involving two stages to verify the identity of an entity trying to access services in a computer or in a network". Github solves this authentication with sending an SMS to a device which wants to push to their platform.

Enabling Two-Factor Authentication

v-kolesnikov

#%RAML 0.8
 
title: World Music API
baseUri: http://example.api.com/{version}
version: v1
schemas:
  - halLink: |
      { "$schema": "http://json-schema.org/schema",
        "type": "object",
        "description": "a Hypertext Application Language link",

v-kolesnikov

require 'dry-validation'

class EnvValidation
  class ENV
    def inspect
      ivs = instance_variables.each { |v| "#{v}=#{instance_variable_get(v)}" }.join(', ')
      "ENV[#{ivs}]"
    end

    def to_s

v-kolesnikov

Строгость и нищета списков.

Map и структурная рекурсия.

Применить функцию к каждому элементу списка - это просто: ###GHC/Base.lhs

map _ []     = []
map f (x:xs) = f x : map f xs