git/t/lib-bitmap.sh
Ævar Arnfjörð Bjarmason ddfe900612 test-lib-functions: move function to lib-bitmap.sh
Move a function added to test-lib-functions.sh in ea047a8eb4 (t5310:
factor out bitmap traversal comparison, 2020-02-14) into a new
lib-bitmap.sh.

The test-lib-functions.sh file should be for functions that are widely
used across the test suite, if something's only used by a few tests it
makes more sense to have it in a lib-*.sh file.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-02-10 13:54:34 -08:00

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