#!/usr/bin/env bash

set -euo pipefail

top="$(pwd -P)"

usage() { echo 'Usage: update-checkout-info DEST'; }

if test "$#" -ne 1; then
    usage 1>&2; exit 1
fi

dest="$1"

if ! test -f lib/bup/bupsplit.c; then
    echo 'error: cannot find bup source tree' 1>&2
    exit 1
fi

git_top=$(git rev-parse --show-toplevel) || true
if test "$git_top" != "$top"; then
    # Not a checkout, or perhaps we're building from an archive dir
    # unpacked somewhere in the source tree.
    rm -f "$dest"
    exit 0
fi

local_changes=$(git status --porcelain -uno)

(git log -1 --pretty="commit='%H'%ndate='%ci'"
 echo -n 'modified='
 if test "$local_changes"; then echo True; else echo False; fi) \
    | dev/refresh -v -- "$dest"