Git post checkout

post-checkout

#!/bin/bash

# Put this file at: .git/hooks/post-checkout
# and make it executable
# You can install it system wide too, see http://stackoverflow.com/a/2293578/685587

PREV_COMMIT=$1
POST_COMMIT=$2

NOCOLOR='\e[0m'
REDCOLOR='\e[37;41m'

if [[ -f composer.lock ]]; then
    DIFF=`git diff --shortstat $PREV_COMMIT..$POST_COMMIT composer.lock`
    if [[ $DIFF != "" ]]; then
        echo -e "$REDCOLOR composer.lock has changed. You must run composer install$NOCOLOR"
    fi
fi

Quick download of this file from CLI:

curl -Ls https://gist.githubusercontent.com/lyrixx/5867424/raw/0af090ab37d07a4d814c1ee2a267fad90767565d/post-checkout \
  > "$(git rev-parse --git-dir)/hooks/post-checkout"

Guys, is there any chance to run it on git pull/merge? In a nutshell, on any update.
Hook files as post-update, post-receive don't work.

I made this script for testing and it didn't show any red message.

git checkout 1.1.0
git branch -d master
git checkout 1.1.0 -b master
git branch --set-upstream-to=origin/master master
git pull

@andkirby don't forget to chmod +x

curl -Ls https://gist.githubusercontent.com/lyrixx/5867424/raw/0af090ab37d07a4d814c1ee2a267fad90767565d/post-checkout \
  > "$(git rev-parse --git-dir)/hooks/post-checkout" && chmod +x "$(git rev-parse --git-dir)/hooks/post-checkout"