A small shell command like `cd` that cd-s you back to project root.

cdr.sh

#!/bin/bash

#
# A small script that works like `cd` except that
# it keeps cd-ing until it reachs the project root
# project is defined by default as the directory
# that contains a .git sub-directory.
#
# Change this behavior like this:
# CDR_ROOT_ID=composer.json
#
# Now the root dir will be the directory containing
# a composer.json file.
#
# To install stick this in your shell config file.
#

function cdr()
{
    set -e
    CDR_ROOT_ID=${CDR_ROOT_ID:-.git}
    ORG_WD=$(pwd)
    CURRENT_DIR=$(pwd)
    CURRENT_GIT_DIR=$CURRENT_DIR"/"$CDR_ROOT_ID
    echo "Looking for: $CURRENT_GIT_DIR"
    while [ ! -e "$CURRENT_GIT_DIR" ] && [ "$CURRENT_DIR" != "/" ]; do
        CURRENT_DIR=$(dirname "$CURRENT_DIR")
        CURRENT_GIT_DIR=$CURRENT_DIR"/"$CDR_ROOT_ID
    done
    if [ -e "$CURRENT_GIT_DIR" ]; then
        cd "$CURRENT_DIR"
        if [ ! -z "$1" ]; then
            cd "$1"
        fi
    else
        echo "No project root found"
        cd "$ORG_WD"
    fi
}

#vim :set ft=sh