linux-ext4 - Re: [PATCH 5/9] e2fscrub: add the -n option which shows what commands e2scrub would execute

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Date:   Wed, 20 Mar 2019 20:59:27 -0700
From:   "Darrick J. Wong" <darrick.wong@...cle.com>
To:     "Theodore Ts'o" <tytso@....edu>
Cc:     Ext4 Developers List <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH 5/9] e2fscrub: add the -n option which shows what
 commands e2scrub would execute

On Wed, Mar 20, 2019 at 10:02:14PM -0400, Theodore Ts'o wrote:
> Signed-off-by: Theodore Ts'o <tytso@....edu>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@...cle.com>

--D

> ---
>  scrub/e2scrub.8.in | 5 +++++
>  scrub/e2scrub.in   | 6 ++++--
>  2 files changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/scrub/e2scrub.8.in b/scrub/e2scrub.8.in
> index ff03523e3..7342876a3 100644
> --- a/scrub/e2scrub.8.in
> +++ b/scrub/e2scrub.8.in
> @@ -38,6 +38,11 @@ If the filesystem is not repaired,
>  will be run before the next mount.
>  .SH OPTIONS
>  .TP
> +\fB-n\fR
> +Print what commands
> +.B e2scrub
> +would execute (but don't actually execute them).
> +.TP
>  \fB-r\fR
>  Remove the e2scrub snapshot and exit without checking anything.
>  .TP
> diff --git a/scrub/e2scrub.in b/scrub/e2scrub.in
> index 51a909373..301574968 100644
> --- a/scrub/e2scrub.in
> +++ b/scrub/e2scrub.in
> @@ -37,6 +37,7 @@ print_help() {
>  	echo "Usage: $0 [OPTIONS] mountpoint | device"
>  	echo
>  	echo "mountpoint must be on a LVM-managed block device"
> +	echo "-n: Show what commands e2scrub would execute."
>  	echo "-r: Remove e2scrub snapshot and exit, do not check anything."
>  	echo "-t: Run fstrim if successful."
>  	echo "-V: Print version information and exit."
> @@ -68,8 +69,9 @@ exitcode() {
>  	exit "${ret}"
>  }
>  
> -while getopts "rtV" opt; do
> -	case "${opt}" in
> +while getopts "nrtV" opt; do
> +    case "${opt}" in
> +	"n") DBG="echo Would execute: " ;;
>  	"r") reap=1;;
>  	"t") fstrim=1;;
>  	"V") print_version; exitcode 0;;
> -- 
> 2.19.1
>