Re: [PATCH v1.1 1/5] populate: export the metadump description name

[Zorro Lang <zlang@kernel.org>]

On Fri, Oct 14, 2022 at 11:21:55AM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
> 
> Make the variable that holds the contents of the metadump description
> file a local variable since we don't need it outside of that function.
> 
> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
> Reviewed-by: Zorro Lang <zlang@redhat.com>
> ---
> v1.1: dont export POPULATE_METADUMP; change the description a bit
> ---

So you don't need to export the POPULATE_METADUMP anymore? I remembered you
said something broken and "exporting the variable made it work". Before I
merge this patch, hope to double check with you.

Thanks,
Zorro

>  common/populate |    8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/common/populate b/common/populate
> index cfdaf766f0..ba34ca5844 100644
> --- a/common/populate
> +++ b/common/populate
> @@ -868,15 +868,15 @@ _scratch_populate_cached() {
>  	local meta_tag="$(echo "${meta_descr}" | md5sum - | cut -d ' ' -f 1)"
>  	local metadump_stem="${TEST_DIR}/__populate.${FSTYP}.${meta_tag}"
>  
> -	# These variables are shared outside this function
> +	# This variable is shared outside this function
>  	POPULATE_METADUMP="${metadump_stem}.metadump"
> -	POPULATE_METADUMP_DESCR="${metadump_stem}.txt"
> +	local populate_metadump_descr="${metadump_stem}.txt"
>  
>  	# Don't keep metadata images cached for more 48 hours...
>  	rm -rf "$(find "${POPULATE_METADUMP}" -mtime +2 2>/dev/null)"
>  
>  	# Throw away cached image if it doesn't match our spec.
> -	cmp -s "${POPULATE_METADUMP_DESCR}" <(echo "${meta_descr}") || \
> +	cmp -s "${populate_metadump_descr}" <(echo "${meta_descr}") || \
>  		rm -rf "${POPULATE_METADUMP}"
>  
>  	# Try to restore from the metadump
> @@ -885,7 +885,7 @@ _scratch_populate_cached() {
>  
>  	# Oh well, just create one from scratch
>  	_scratch_mkfs
> -	echo "${meta_descr}" > "${POPULATE_METADUMP_DESCR}"
> +	echo "${meta_descr}" > "${populate_metadump_descr}"
>  	case "${FSTYP}" in
>  	"xfs")
>  		_scratch_xfs_populate $@
>