diff tests/test-sparse.t @ 50725:7e5be4a7cda7 stable

tests: use grep -E instead of obsolescent egrep

Testing on Fedora 38 failed with:
  egrep: warning: egrep is obsolescent; using grep -E

The warning comes from
https://git.savannah.gnu.org/cgit/grep.git/commit/?id=a9515624709865d480e3142fd959bccd1c9372d1
. For further anecdotal evidence of the change, see
https://www.phoronix.com/news/GNU-Grep-3.8-Stop-egrep-fgrep .

This reverses the code check that goes back to e7d3b509af8b. grep -E is POSIX,
but there is a risk that it doesn't work the same on all platforms - especially
older Unix versions. It should however always be possible to put a GNU grep in
$PATH before running the tests.

--- a/tests/test-sparse.t	Mon Jun 26 11:15:30 2023 +0100
+++ b/tests/test-sparse.t	Mon Jun 26 14:34:58 2023 +0200
@@ -312,7 +312,7 @@
   $ touch dir1/notshown
   $ hg commit -A dir1/notshown -m "notshown"
   $ hg debugsparse --include 'dir1/dir2'
-  $ "$PYTHON" $TESTDIR/list-tree.py . | egrep -v '\.[\/]\.hg'
+  $ "$PYTHON" $TESTDIR/list-tree.py . | grep -E -v '\.[\/]\.hg'
   ./
   ./dir1/
   ./dir1/dir2/
@@ -320,7 +320,7 @@
   ./hide.orig
   $ hg debugsparse --delete 'dir1/dir2'
   $ hg debugsparse --include 'glob:dir1/dir2'
-  $ "$PYTHON" $TESTDIR/list-tree.py . | egrep -v '\.[\/]\.hg'
+  $ "$PYTHON" $TESTDIR/list-tree.py . | grep -E -v '\.[\/]\.hg'
   ./
   ./dir1/
   ./dir1/dir2/