添加方法

devops/PipeLines/Functions.common.sh

@@ -32,3 +32,12 @@ function FirstCharUpperCase()
 	declare output=($(echo ${input} | sed -e "s/\b\(.\)/\u\1/g"))
     eval $2=${output}
 }
+
+function Substr()
+{
+    declare input=$1
+	declare start=$2
+	declare length=$3
+	declare output=${input:start:length}
+    eval $4=${output}
+}
\ No newline at end of file

devops/PipeLines/Functions.core.sh

@@ -82,6 +82,31 @@ function GetVersion()
 	eval $1="${major}.${minor}.${patch}"
 }
 
+function GetNumericVersion()
+{
+	declare major=($(grep -oP '(?<=Major>)[^<]+' "./devops/version.props"))
+	declare minor=($(grep -oP '(?<=Minor>)[^<]+' "./devops/version.props"))
+	declare patch=($(grep -oP '(?<=Patch>)[^<]+' "./devops/version.props"))
+
+	eval $1=${major}${minor}${patch}
+}
+
+function GetRollBackVersion()
+{
+	GetNumericVersion currentVersion
+	declare step=($(grep -oP '(?<=RollBackStep>)[^<]+' "devops/deploy.props"))
+	declare rollbackVersion=`expr $currentVersion - $step` 
+	declare versionStr=""
+	if [ "$rollbackVersion" -lt "100" ] 
+	then
+	   versionStr="0.${rollbackVersion:0:1}.${rollbackVersion:1:1}"
+	else
+	   versionStr="${rollbackVersion:0:1}.${rollbackVersion:1:1}.${rollbackVersion:2:1}"
+	fi
+
+	eval $1=${versionStr}
+}
+
 function GetImageRegistrySettings()
 {
     declare host=($(grep -oP '(?<=ImageRegistryHost>)[^<]+' "devops/deploy.props"))