pacificclimate/climate-explorer-frontend

#!/bin/bash
#
# Check package.json and npm install after git checkout.
# Put this to .git/hooks/post-checkout
#

PREVIOUS_HEAD=$1
NEW_HEAD=$2
BRANCH_SWITCH=$3

DIFF=$(git diff --name-only "$PREVIOUS_HEAD".."$NEW_HEAD" -- client/package.json | wc -l)

if [ ${DIFF}  == "1" ]; then
    echo "[post-checkout] package.json changed"
    # This is relative to the GIT_WORK_TREE
    cd client
    echo "[post-checkout] Removing node_modules/ (if they exist)"
    rm -rf node_modules/
    echo "[post-checkout] Reinstalling nodejs modules"
    npm install
fi