Put the following content into the file at .git/hooks/post-merge in your git repository. It tells you if there any new files in a directory after merging another branch. This is extremely useful as shown below for Migrations to ensure your database is in the same state as the master branch. This could be applied to anything else like new bash sc…

Check for new files in a directory git post merge hook

#!/bin/sh
#
# This hook parses the Migrations directory and counts if there are any migrations to run.
# If there are no migrations, nothing will show - leaving the developer in peace :)
git log -m -1 --name-only --pretty="format:" &> new_migrations.log

COUNTER=0
while read CMD; do
        if [[ $CMD == *Migration* ]]
        then
                let COUNTER=COUNTER+1
        fi
done < new_migrations.log

if [[ $COUNTER > 0 ]]
then
        printf '\033[0;32m%s\033[0m\n' '  _   _   _   _   _   _   _   _   _   _ '
        printf '\033[0;32m%s\033[0m\n' ' / \ / \ / \ / \ / \ / \ / \ / \ / \ / \ '
        printf '\033[0;32m%s\033[0m\n' '( m | i | g | r | a | t | i | o | n | s )'
        printf '\033[0;32m%s\033[0m\n' ' \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ '

        if [[ $COUNTER == 1 ]]
        then
                echo INFO: There is $COUNTER migration to run!
        else
                echo INFO: There are $COUNTER migrations to run!
        fi

        echo The command is: Console/cake migrations.migration run all
fi

rm new_migrations.log