Re: [PATCH] scripts: setlocalversion: replace backquote to dollar parenthesis

[Bhaskar Chowdhury <unixbhaskar@gmail.com>]

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On 13:52 Wed 16 Oct 2019, Nico Schottelius wrote:
>
>As $() is more robust than `` (no nesting possible),
>I support this patch.
>
Hi Nico,

Kindly provide the consent to use your support as Acked-by in the patch.

Thanks,
Bhaskar
>
>Bhaskar Chowdhury <unixbhaskar@gmail.com> writes:
>
>> This patch replace backquote to dollar parenthesis syntax for better
>> readability.
>>
>> Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
>> ---
>>  scripts/setlocalversion | 22 +++++++++++-----------
>>  1 file changed, 11 insertions(+), 11 deletions(-)
>>
>> diff --git a/scripts/setlocalversion b/scripts/setlocalversion
>> index 220dae0db3f1..b82a29bfc78a 100755
>> --- a/scripts/setlocalversion
>> +++ b/scripts/setlocalversion
>> @@ -45,11 +45,11 @@ scm_version()
>>
>>  	# Check for git and a git repo.
>>  	if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
>> -	   head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
>> +		head=$(git rev-parse --verify --short HEAD 2>/dev/null); then
>>
>>  		# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
>>  		# it, because this version is defined in the top level Makefile.
>> -		if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
>> +		if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then
>>
>>  			# If only the short version is requested, don't bother
>>  			# running further git commands
>> @@ -59,7 +59,7 @@ scm_version()
>>  			fi
>>  			# If we are past a tagged commit (like
>>  			# "v2.6.30-rc5-302-g72357d5"), we pretty print it.
>> -			if atag="`git describe 2>/dev/null`"; then
>> +			if atag="$(git describe 2>/dev/null)"; then
>>  				echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
>>
>>  			# If we don't have a tag at all we print -g{commitish}.
>> @@ -70,7 +70,7 @@ scm_version()
>>
>>  		# Is this git on svn?
>>  		if git config --get svn-remote.svn.url >/dev/null; then
>> -			printf -- '-svn%s' "`git svn find-rev $head`"
>> +			printf -- '-svn%s' "$(git svn find-rev $head)"
>>  		fi
>>
>>  		# Check for uncommitted changes.
>> @@ -91,15 +91,15 @@ scm_version()
>>  	fi
>>
>>  	# Check for mercurial and a mercurial repo.
>> -	if test -d .hg && hgid=`hg id 2>/dev/null`; then
>> +	if test -d .hg && hgid=$(hg id 2>/dev/null); then
>>  		# Do we have an tagged version?  If so, latesttagdistance == 1
>> -		if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then
>> -			id=`hg log -r . --template '{latesttag}'`
>> +		if [ "$(hg log -r . --template '{latesttagdistance}')" == "1" ]; then
>> +			id=$(hg log -r . --template '{latesttag}')
>>  			printf '%s%s' -hg "$id"
>>  		else
>> -			tag=`printf '%s' "$hgid" | cut -d' ' -f2`
>> +			tag=$(printf '%s' "$hgid" | cut -d' ' -f2)
>>  			if [ -z "$tag" -o "$tag" = tip ]; then
>> -				id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
>> +				id=$(printf '%s' "$hgid" | sed 's/[+ ].*//')
>>  				printf '%s%s' -hg "$id"
>>  			fi
>>  		fi
>> @@ -115,8 +115,8 @@ scm_version()
>>  	fi
>>
>>  	# Check for svn and a svn repo.
>> -	if rev=`LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'`; then
>> -		rev=`echo $rev | awk '{print $NF}'`
>> +	if rev=$(LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'); then
>> +		rev=$(echo $rev | awk '{print $NF}')
>>  		printf -- '-svn%s' "$rev"
>>
>>  		# All done with svn
>
>
>--
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