tests/lcov-wrapper.in

   1 #! /bin/sh
   2
   3 abs_top_builddir='@abs_top_builddir@'
   4 wrap_program=`basename '@wrap_program@'`
   5
   6 # Strip the first directory from $PATH that contains $wrap_program,
   7 # so that below we run the real $wrap_program, not ourselves.
   8 not_found=true
   9 new_path=
  10 first=true
  11 save_IFS=$IFS
  12 IFS=:
  13 for dir in $PATH; do
  14     IFS=$save_IFS
  15     if $not_found && test -x "$dir/$wrap_program"; then
  16         not_found=false
  17     else
  18         if $first; then
  19             first=false
  20             new_path=$dir
  21         else
  22             new_path=$new_path:$dir
  23         fi
  24     fi
  25 done
  26 IFS=$save_IFS
  27 if $not_found; then
  28     echo "$0: error: cannot find $wrap_program in \$PATH" >&2
  29     exit 1
  30 fi
  31 PATH=$new_path
  32 export PATH
  33
  34 # XXX Probably want some kind of synchronization here to deal with
  35 # programs running in parallel.
  36 LCOV="lcov -b $abs_top_builddir -d $abs_top_builddir -q"
  37 $LCOV -z
  38
  39 # Run the subprocess and propagate signals to it.
  40 for signal in 1 2 3 5 15; do
  41     trap "kill -$signal \$!     # Propagate signal
  42           trap - $signal        # Reset signal to default
  43           wait                  # Wait for child to die
  44           kill -$signal $$      # Kill ourselves with same signal
  45           exit 1                # Exit in case 'kill' failed" $signal
  46 done
  47 $wrap_program 0<&0 "$@" &       # 0<&0 prevents shell from closing stdin
  48 exec 0</dev/null                # Don't hold stdin open unnecessarily
  49 wait $!; rc=$?
  50
  51 # Run lcov, but only if some .gcda files were produced, since lcov
  52 # complains otherwise.
  53 for file in `find "$abs_top_builddir" -name '*.gcda'`; do
  54     $LCOV -c -o - >> "$abs_top_builddir/tests/coverage.info"
  55     break
  56 done
  57
  58 exit $rc