chore: fix test on macOS

Author: tydeu

tests/lake/tests/cache/test.sh

@@ -180,7 +180,7 @@ test_run build -v --no-build test:exe Test:static Test:shared \
 test_restored() {
   target="$1"; shift
   art="$($LAKE query $target)"
-  hardlinks="$(stat -c %h "$art")"
+  hardlinks="$(stat_ch "$art")"
   echo "! artifact cached (links: $hardlinks): $target -> $art"
   test ! "$(norm_dirname "$art")" = "$CACHE_DIR/artifacts"
   test $hardlinks -gt 1 # check that the restored artifact is hard linked

tests/lake/tests/common.sh

@@ -31,9 +31,11 @@ fi
 
 if [ "$UNAME" = Darwin ] || [ "$UNAME" = FreeBSD ]; then
   sed_i() { sed -i '' "$@"; }
+  stat_ch() { stat -f %l -- "$1"; }
   TAIL=gtail
 else
   sed_i() { sed -i "$@"; }
+  stat_ch() { stat -c %h -- "$1"; }
   TAIL=tail
 fi