diplodocus.org Git - nmh/blob - test/common.sh

   1 # Common helper routines for test shell scripts -- intended to be sourced by them
   2 test_skip ()
   3 {
   4   WHY="$1"
   5   echo "$Test $0 SKIP ($WHY)"
   6   exit 120
   7 }
   8
   9 # portable implementation of 'which' utility
  10 findprog()
  11 {
  12   FOUND=
  13   PROG="$1"
  14   IFS_SAVE="$IFS"
  15   IFS=:
  16   for D in $PATH; do
  17     if [ -z "$D" ]; then
  18       D=.
  19     fi
  20     if [ -f "$D/$PROG" ] && [ -x "$D/$PROG" ]; then
  21       printf '%s\n' "$D/$PROG"
  22       break
  23     fi
  24   done
  25   IFS="$IFS_SAVE"
  26 }
  27
  28 require_prog ()
  29 {
  30   if [ -z "$(findprog $1)" ]; then
  31     test_skip "missing $1"
  32   fi
  33 }
  34
  35 # Some stuff for doing silly progress indicators
  36 progress_update ()
  37 {
  38   THIS="$1"
  39   FIRST="$2"
  40   LAST="$3"
  41   RANGE="$(($LAST - $FIRST))"
  42   PROG="$(($THIS - $FIRST))"
  43   # this automatically rounds to nearest integer
  44   PERC="$(((100 * $PROG) / $RANGE))"
  45   # note \r so next update will overwrite
  46   printf "%3d%%\r" $PERC
  47 }
  48
  49 progress_done ()
  50 {
  51   printf "100%%\n"
  52 }