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 if test "$DISABLE_LCOV" = true; then
  35     exec $wrap_program "$@"
  36     exit 1
  37 fi
  38
  39 # XXX Probably want some kind of synchronization here to deal with
  40 # programs running in parallel.
  41 LCOV="lcov -b $abs_top_builddir -d $abs_top_builddir -q"
  42 $LCOV -z
  43
  44 # Run the subprocess and propagate signals to it.
  45 for signal in 1 2 3 5 15; do
  46     trap "kill -$signal \$!     # Propagate signal
  47           trap - $signal        # Reset signal to default
  48           wait                  # Wait for child to die
  49           kill -$signal $$      # Kill ourselves with same signal
  50           exit 1                # Exit in case 'kill' failed" $signal
  51 done
  52 $wrap_program 0<&0 "$@" &       # 0<&0 prevents shell from closing stdin
  53 exec 0</dev/null                # Don't hold stdin open unnecessarily
  54 wait $!; rc=$?
  55
  56 # Run lcov, but only if some .gcda files were produced, since lcov
  57 # complains otherwise.
  58 for file in `find "$abs_top_builddir" -name '*.gcda'`; do
  59     $LCOV -c -o - >> "$abs_top_builddir/tests/coverage.info"
  60     break
  61 done
  62
  63 exit $rc