vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

aparrish

adtac

#!/usr/bin/env -S bash -c "docker run -p 8080:8080 -it --rm \$(docker build --progress plain -f \$0 . 2>&1 | tee /dev/stderr | grep -oP 'sha256:[0-9a-f]*')"

# syntax = docker/dockerfile:1.4.0

FROM node:20

WORKDIR /root

RUN npm install sqlite3

qstrahl

set cot=menu,menuone

ino <BS> <BS><C-r>=getline('.')[col('.')-3:col('.')-2]=~#'\k\k'?!pumvisible()?"\<lt>C-n>\<lt>C-p>":'':pumvisible()?"\<lt>C-y>":''<CR>
ino <CR> <C-r>=pumvisible()?"\<lt>C-y>":""<CR><CR>
ino <Tab> <C-r>=pumvisible()?"\<lt>C-n>":"\<lt>Tab>"<CR>
ino <S-Tab> <C-r>=pumvisible()?"\<lt>C-p>":"\<lt>S-Tab>"<CR>

augroup MyAutoComplete 
    au!
    au InsertCharPre * if

bobbruno

def bufferise(defbuf=20, defskip=0):
    def decorate(function):
        def wrapper(*args, **kwargs):
            bufsize = kwargs['bufsize'] if 'bufsize' in kwargs else defbuf
            skiplines = kwargs['skiplines'] if 'skiplines' in kwargs else defskip
            print 'Bufsize = {}'.format(bufsize)
            print 'Skip {} lines'.format(skiplines)
            if skiplines:
                for i, record in enumerate(function(*args, **kwargs), start=1):
                    if i > skiplines:

shime

Having trouble installing the latest stable version of tmux?

I know, official package for your OS/distro is outdated and you just want the newest version of tmux.

Well, this script should save you some time with that.

Prerequisities

• gcc

aneesha

from sklearn.feature_extraction.text import TfidfVectorizer, CountVectorizer
from sklearn.datasets import fetch_20newsgroups
from sklearn.decomposition import NMF, LatentDirichletAllocation

def display_topics(model, feature_names, no_top_words):
    for topic_idx, topic in enumerate(model.components_):
        print "Topic %d:" % (topic_idx)
        print " ".join([feature_names[i]
                        for i in topic.argsort()[:-no_top_words - 1:-1]])

paulsmith

package main

import (
	"flag"
	"io"
	"log"
	"net"
)

func main() {

erickrf

# -*- coding: utf-8 -*-

'''
Functions to read the OpenWordnetPT from RDF files and provide
access to it.
'''

import rdflib
from six.moves import cPickle

soaxelbrooke

WITH tokens AS (
  -- Just edit MY_TABLE, MY_TEXT_COL, and MY_PKEY_COL, and watch it go!
  SELECT MY_PKEY_COL AS pkey, (unnest(to_tsvector(MY_TEXT_COL))).* FROM MY_TABLE
), token_stream AS (
  SELECT pkey, unnest(positions) AS token_idx, lexeme
  FROM tokens ORDER BY pkey, token_idx
), token_counts AS (
  SELECT lexeme, sum(count) AS count
  FROM (
    SELECT lexeme, array_length(positions, 1) AS count FROM tokens