Automatically launch command when cd into a choosen directory - bash

Question

I would like to launch : $ git status
when I cd into ~/work
I thought about putting an alias that would cd me into the work directory and launch the git status, but I don't find that solution to be optimal.

Answer 1

Add this to your .bashrc:
gitstatusinwork() {
if [[ "$PWD" != "$MYOLDPWD" ]]; then
MYOLDPWD="$PWD"
if [[ "$PWD/" = ~/work/* ]]; then
if [[ "$OLDPWD" != ~/work/* && "$INWORKDIR" == 0 ]]; then
git status
fi
INWORKDIR=1
else
INWORKDIR=0
fi
fi
}
export PROMPT_COMMAND="$PROMPT_COMMAND; gitstatusinwork"
This function executes git status as soon as your enter your ~/work directory (or any of its subdirectory), then never displays it again, unless you get out of the ~/work directory and re-enter it again.

Answer 2

The easiest way is:
cd ~/work && git status
I don't think you're looking for this though.
Another option would be overwriting the default cd command. You could place a bash function at the end of your .bashrc or .bash_profile file like so:
cd() {
builtin cd "$1"
# detect if the current directory is a git repository
if [ -d .git ] || git rev-parse --is-inside-work-tree 2> /dev/null > /dev/null; then
echo ""; git status
fi
}
I hope this helps.
Update:
If you just want to see the git status when you cd into the root of your repo, you can just use the first part of the conditional like so:
cd() {
builtin cd "$1"
# detect if the current directory is a git repository
if [ -d .git ]; then
echo ""; git status
fi
}