granicus.if.org Git - strace/blob - copyright-year-gen

   1 #! /bin/sh
   2
   3 : ${YEAR_FILE:=$1}
   4 : ${DEFAULT_YEAR:=$2}
   5
   6 year=
   7
   8 [ -n "${YEAR_FILE}" ] || {
   9         echo >&2 "$0 $(dirname "$0")/.year [DEFAULT_YEAR]"
  10         exit 1
  11 }
  12
  13 [ -f "${YEAR_FILE}" ] && year="$(cat "${YEAR_FILE}")"
  14
  15 [ -n "${year}" ] ||
  16         year="$(git show --format=format:%cd --no-patch --date=format:%Y)"
  17
  18 [ -n "${year}" ] || year="${DEFAULT_YEAR}"
  19
  20 [ -n "${year}" ] || year="$(date "+%Y")"
  21
  22 [ -n "${year}" ] || {
  23         echo >&2 'Undefined year.'
  24         exit 1
  25 }
  26
  27 printf "%s" "${year}"