SanCoder-Q

function git-revert-batch {
  echo "$@" | xargs -n1 git revert --no-commit
}
alias grb='git-revert-batch'

# use like:
# grb ee5c95a 981da8b
# list commits in reverse order, and it's ready to make one neat+tidy revert-commit

SanCoder-Q

#!/bin/bash

# Unload the keyboard so I can use my external keyboard
# and not worry about accidentally pressing buttons on
# the built-in. This may not be a problem for you but, you
# should see my desk sometimes (Oh no!!) ;-)

sudo kextunload /System/Library/Extensions/AppleUSBTopCase.kext/Contents/PlugIns/AppleUSBTCKeyboard.kext/

# enableIt

SanCoder-Q

import scala.concurrent.duration._
import scala.concurrent.ExecutionContext
import scala.concurrent.Future
import akka.pattern.after
import akka.actor.Scheduler

/**
 * Given an operation that produces a T, returns a Future containing the result of T, unless an exception is thrown,
 * in which case the operation will be retried after _delay_ time, if there are more possible retries, which is configured through
 * the _retries_ parameter. If the operation does not succeed and there is no retries left, the resulting Future will contain the last failure.

SanCoder-Q

An exploration of the different render methods available in react-enzyme.

SanCoder-Q

Every so often I have to restore my gpg keys and I'm never sure how best to do it. So, I've spent some time playing around with the various ways to export/import (backup/restore) keys.

Method 1

Backup the public and secret keyrings and trust database

cp ~/.gnupg/pubring.gpg /path/to/backups/
cp ~/.gnupg/secring.gpg /path/to/backups/
cp ~/.gnupg/trustdb.gpg /path/to/backups/

or, instead of backing up trustdb...

SanCoder-Q

# 新建一个无密码，无法登陆，没home的系统用户，就叫shadowsocks
adduser --system --disabled-password --disabled-login --no-create-home shadowsocks

# 修改 /etc/default/shadowsocks-libev
USER=shadowsocks
GROUP=nogroup

# 使用setcap，允许非root用户无法监听低位端口
apt-get install libcap2-bin
setcap 'cap_net_bind_service=+ep' /usr/bin/ss-server