fuweid

#! /bin/bash

set -euo pipefail

CODE=$(cat <<EOF
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#define BUFFER_SIZE BUFFER_SIZE_T

fuweid

#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>

fuweid

#include "atom.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>

#include <assert.h>
#include <string.h>
#include <limits.h>

#define NELEMS(x) ((sizeof(x) / sizeof((x)[0])))

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#include "mem.h"

#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>

#define NELEMS(arr) ((sizeof(arr) / sizeof((arr)[0])))
#define NDESCRIPTORS 512

fuweid

git branch --list \
  | cut -c 3- \
  | sed 's/\(dev\)//g' \
  | xargs -n 1

fuweid

# Hello, and welcome to makefile basics.
#
# You will learn why `make` is so great, and why, despite its "weird" syntax,
# it is actually a highly expressive, efficient, and powerful way to build
# programs.
#
# Once you're done here, go to
# http://www.gnu.org/software/make/manual/make.html
# to learn SOOOO much more.

fuweid

Colours in terminal

It's a common confusion about terminal colours... Actually we have this:

• plain ascii
• ansi escape codes (16 colour codes with bold/italic and background)
• 256 colour palette (216 colours + 16 ansi + 24 gray) (colors are 24bit)
• 24bit true colour ("888" colours (aka 16 milion))

printf "\x1b[${bg};2;${red};${green};${blue}m\n"

fuweid

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

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https://www.digitalocean.com/community/tutorials/understanding-nginx-server-and-location-block-selection-algorithms

1 普通匹配，遵循最长匹配规则，假设一个请求匹配到了两个普通规则，则选择匹配长度大的那个
  例如： 
  location /{
    [matches]
  }
  location /test{
    [matches]
  }

fuweid

#!/usr/bin/env python
# -*- coding: utf-8 -*-

# This script helps removing Git branches.
# Run it from a git repo dir. It will open the Git branches list
# in your favorite editor. Delete some branches from the list.
# Save and close the file. The script applies the changes to the repo.

from subprocess import call, Popen, PIPE
from os import getenv