tools/meson-check-help.sh

   1 #!/bin/sh -eu
   2
   3 # output width
   4 if "$1"  --help | grep -v 'default:' | grep -E -q '.{80}.'; then
   5     echo "$(basename "$1") --help output is too wide:"
   6     "$1"  --help | awk 'length > 80' | grep -E --color=yes '.{80}'
   7     exit 1
   8 fi
   9
  10 # no --help output to stdout
  11 if "$1" --help 2>&1 1>/dev/null | grep .; then
  12     echo "$(basename "$1") --help prints to stderr"
  13     exit 2
  14 fi
  15
  16 # error output to stderr
  17 if ! "$1" --no-such-parameter 2>&1 1>/dev/null | grep -q .; then
  18     echo "$(basename "$1") with an unknown parameter does not print to stderr"
  19     exit 3
  20 fi