liuml07 commented on a change in pull request #2056:
URL: https://github.com/apache/hbase/pull/2056#discussion_r456574712
##########
File path: hbase-common/src/saveVersion.sh
##########
@@ -30,34 +30,34 @@ nativeOutputDirectory="$2/native/utils/"
pushd .
cd ..
-user=`whoami | sed -n -e 's/\\\/\\\\\\\\/p'`
+user=$(whoami | sed -n -e "s/\\\/\\\\\\\\/p")
if [ "$user" == "" ]
then
- user=`whoami`
+ user=$(whoami)
fi
-date=`date`
-cwd=`pwd`
+date=$(date)
+cwd=$(pwd)
if [ -d .svn ]; then
- revision=`(svn info | sed -n -e 's/Last Changed Rev: \(.*\)/\1/p') || true`
- url=`(svn info | sed -n -e 's/^URL: \(.*\)/\1/p') || true`
+ revision=$( (svn info | sed -n -e "s/Last Changed Rev: \(.*\)/\1/p") || true)
+ url=$( (svn info | sed -n -e 's/^URL: \(.*\)/\1/p') || true)
elif [ -d .git ]; then
- revision=`git log -1 --no-show-signature --pretty=format:"%H" || true`
- hostname=`hostname`
+ revision=$(git log -1 --no-show-signature --pretty=format:"%H" || true)
+ hostname=$(hostname)
url="git://${hostname}${cwd}"
fi
if [ -z "${revision}" ]; then
echo "[WARN] revision info is empty! either we're not in VCS or VCS commands
failed." >&2
revision="Unknown"
url="file://$cwd"
fi
-if ! [ -x "$(command -v openssl)" ]; then
+if ! [ -x "$(command -v openssl)" ]; then
if ! [ -x "$(command -v gpg)" ]; then
srcChecksum="Unknown"
else
- srcChecksum=`find hbase-*/src/main/ | grep -e "\.java" -e "\.proto" |
LC_ALL=C sort | xargs gpg --print-md sha512 | gpg --print-md sha512 | cut -d '
' -f 1`
Review comment:
Does `tr -d '[:space:]'` work? It's simpler and shorter than `tr '\n' '
' | sed 's/[[:space:]]*//g'`
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