t/lib-bitmap.sh

   1 # Compare a file containing rev-list bitmap traversal output to its non-bitmap
   2 # counterpart. You can't just use test_cmp for this, because the two produce
   3 # subtly different output:
   4 #
   5 #   - regular output is in traversal order, whereas bitmap is split by type,
   6 #     with non-packed objects at the end
   7 #
   8 #   - regular output has a space and the pathname appended to non-commit
   9 #     objects; bitmap output omits this
  10 #
  11 # This function normalizes and compares the two. The second file should
  12 # always be the bitmap output.
  13 test_bitmap_traversal () {
  14         if test "$1" = "--no-confirm-bitmaps"
  15         then
  16                 shift
  17         elif cmp "$1" "$2"
  18         then
  19                 echo >&2 "identical raw outputs; are you sure bitmaps were used?"
  20                 return 1
  21         fi &&
  22         cut -d' ' -f1 "$1" | sort >"$1.normalized" &&
  23         sort "$2" >"$2.normalized" &&
  24         test_cmp "$1.normalized" "$2.normalized" &&
  25         rm -f "$1.normalized" "$2.normalized"
  26 }