Carthage Cartfile diff script

cart_diff.sh

function runCarthageAndCopyResolved {
    echo "Running Carthage.."
    /usr/local/bin/carthage bootstrap "$SRCROOT" --platform iOS
    # Copies the Cartfile.resolved file to /Carthage directory
    cp "$SRCROOT"/Cartfile.resolved "$SRCROOT"/Carthage/.Cartfile.resolved
    echo "Copied Cartfile.resolved to /Carthage directory."
    echo "This will be used to check Carthage dependency updates in the future."
}

command -v carthage >/dev/null 2>&1 || {
    echo "Carthage is required. Please install Carthage and try again. Aborting.";
    exit 1;
}

# Checks if Carthage/Build directory doesn't exist and if not it'll run Carthage
# After, it checks if the Cartfile.resolved file differs from the one in Carthage. If so, Carthage runs
if [ ! -d "$SRCROOT/Carthage/Build" ]; then
    echo "No Carthage/Build directory found."
    runCarthageAndCopyResolved
elif [ -f $SRCROOT/Carthage/.Cartfile.resolved ] && \
        diff $SRCROOT/Carthage/.Cartfile.resolved \
        $SRCROOT/Cartfile.resolved >/dev/null ; then
    echo "Cartfile.resolved has not changed. Building project."
else
    echo "Cartfile.resolved not up to date or not found."
    runCarthageAndCopyResolved
fi