#!/usr/bin/env bash
set -o errexit
set -o pipefail
set -o nounset

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"; export SCRIPT_DIR
source "${SCRIPT_DIR}/.validate"

vendor_dir="./vendor/"
IFS=$'\n' files=( $(validate_diff --diff-filter=ACMR --name-only -- ${vendor_dir} || true) )

if [[ ${#files[@]} -gt 0 ]]; then
    # We run dep install to and see if we have a diff afterwards
    echo "checking ${vendor_dir} for unintentional changes..."

    dep ensure -v
    (${SCRIPT_DIR}/prune-dep.sh)

    # Let see if the working directory is clean
    diffs="$(git status --porcelain -- ${vendor_dir} 2>/dev/null)"
    if [[ "$diffs" ]]; then
        {
            echo "The result of 'dep ensure' for vendor directory '${vendor_dir}' differs"
            echo
            echo "$diffs"
            echo
            echo 'Please vendor your package(s) with dep.'
            echo
        } >&2
        exit 2
    fi
fi

echo 'Congratulations! All vendoring changes are done the right way.'