Are You Sure?

areyousure is a command-line utility that can be used to intercept sensitive commands and ask the user whether they are sure about executing them. This can save your bacon when accidentally doing a git push -f on the wrong branch or a kubectl delete namespace production.

Example

$ kubectl delete namespace somenamespace
😮 DANGER. You are about to execute: 

👉 kubectl delete namespace somenamespace

🤔 Are you sure? [Yy] n
👍 Stopping
$ kubectl delete namespace somenamespace
😮 DANGER. You are about to execute: 

👉 kubectl delete namespace somenamespace

🤔 Are you sure? [Yy] y
namespace "somenamespace" deleted

Usage

Suppose you want to intercept all kubectl delete commands, add the following to your ~/.zshrc / ~/.bashrc or similar:

kubectl() {
  if [[ "$@" =~ "delete" ]]; then
      command areyousure "$0" "$@"
  else
      command kubectl "$@"
  fi
}

You probably know what you're doing if you're using another shell.

Installation

Grab the latest build from the releases section, or follow the build instructions below.

You will need cmake, make and a C compiler for this. On a Debian-based distro something like this is like going to work:

apt install cmake make gcc
mkdir build
cd build
cmake ..
make
sudo make install # Will copy to /usr/local/bin

TODO

1. Timer (i.e. will execute in 5s)
2. --install which builds a shell script to wrap command (areyousure --install kubectl delete)
3. Config options / file (i.e. whether to use emojis)
4. Automatic build in GitHub
5. Pre-defined list of sensitive commands that can be auto-installed