pkgs/build-support/setup-hooks/die.sh

   1 # Exit with backtrace and error message
   2 #
   3 # Usage: die "Error message"
   4 die() {
   5     # Let us be a little sloppy with errors, because otherwise the final
   6     # invocation of `caller` below will cause the script to exit.
   7     set +e
   8
   9     # Print our error message
  10     printf "\nBuilder called die: %b\n" "$*"
  11     printf "Backtrace:\n"
  12
  13     # Print a backtrace.
  14     local frame=0
  15     while caller $frame; do
  16         ((frame++));
  17     done
  18     printf "\n"
  19
  20     exit 1
  21 }