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[v2,1/3] common/rc: handle option with argument in _require_xfs_io_command()

Message ID 20200203181855.42987-2-ebiggers@kernel.org (mailing list archive)
State New
Headers show
Series xfstests: test adding filesystem-level fscrypt key via key_id | expand

Commit Message

Eric Biggers Feb. 3, 2020, 6:18 p.m. UTC
From: Eric Biggers <ebiggers@google.com>

Fix _require_xfs_io_command() to handle options that take arguments when
the argument is shown in the help text.  E.g., it didn't work to run:

	_require_xfs_io_command "add_enckey" "-k"

because the relevant line of the help text is:

	-k KEY_ID -- ID of fscrypt-provisioning key containing the raw key

... but the grep command only matched "-k --", not "-k KEY_ID --".

Signed-off-by: Eric Biggers <ebiggers@google.com>
 common/rc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/common/rc b/common/rc
index b4a77a21..0306e93c 100644
--- a/common/rc
+++ b/common/rc
@@ -2248,7 +2248,7 @@  _require_xfs_io_command()
 	[ -n "$param" ] || return
 	if [ -z "$param_checked" ]; then
-		$XFS_IO_PROG -c "help $command" | grep -q "^ $param --" || \
+		$XFS_IO_PROG -c "help $command" | grep -E -q "^ $param ([a-zA-Z_]+ )?--" || \
 			_notrun "xfs_io $command doesn't support $param"
 		# xfs_io could result in "command %c not supported" if it was