| # use bash as the default shell | |
| SHELL := bash | |
| # ensures each Make recipe is ran as one single shell session, rather than one new shell per line | |
| .ONESHELL: | |
| # use bash strict mode. http://redsymbol.net/articles/unofficial-bash-strict-mode/ | |
| .SHELLFLAGS := -eu -o pipefail -c | |
| # remove target files when Make file failed | |
| .DELETE_ON_ERROR: | |
| # warning when referring the undefined variables | |
| MAKEFLAGS += --warn-undefined-variables |
| #!/bin/bash | |
| ### | |
| ### my-script — does one thing well | |
| ### | |
| ### Usage: | |
| ### my-script <input> <output> | |
| ### | |
| ### Options: | |
| ### <input> Input file to read. | |
| ### <output> Output file to write. Use '-' for stdout. |
| package main | |
| import ( | |
| "fmt" | |
| "math/rand" | |
| "time" | |
| ) | |
| const ( | |
| width = 80 |
| <body onload=z=c.getContext`2d`,setInterval(`c.width=W=150,Y<W&&P<Y&Y<P+E|9<p?z.fillText(S++${Y=`,9,9|z.fillRect(p`}*0,Y-=--M${Y+Y},P+E,9,W),P))):p=M=Y=S=6,p=p-6||(P=S%E,W)`,E=49) onclick=M=9><canvas id=c> |
The set lines
set -euxo pipefail is short for:set -e
set -u
| #include <assert.h> | |
| #include <stdlib.h> | |
| #include <string.h> | |
| #include <stdint.h> | |
| #include <stdio.h> | |
| #define N (100000063/64) | |
| struct bitset { | |
| uint64_t bits[N]; |
| from requests.adapters import HTTPAdapter, Retry | |
| from requests import Session | |
| retries = Retry( | |
| total=5, backoff_factor=1, status_forcelist=[502, 503, 504] | |
| ) | |
| session = Session() # reuse tcp connection | |
| session.mount("http://", HTTPAdapter(max_retries=retries)) | |
| session.mount("https://", HTTPAdapter(max_retries=retries)) |