fix: add check for legacy semver

Signed-off-by: Artur Troian <[email protected]>

script/semver_funcs.sh

@@ -11,6 +11,12 @@ SEMVER_REGEX_STR="\
 (\\-(${IDENT})(\\.(${IDENT}))*)?\
 (\\+${FIELD}(\\.${FIELD})*)?$"
 
+SEMVER_REGEX_LEGACY="\
+[vV]?\
+($NAT)\\.($NAT)(\\.($NAT))?\
+(\\-(${IDENT})(\\.(${IDENT}))*)?\
+(\\+${FIELD}(\\.${FIELD})*)?$"
+
 SEMVER_REGEX="^$SEMVER_REGEX_STR"
 
 function error {
@@ -43,6 +49,18 @@ function validate_version {
 		else
 			echo "$version"
 		fi
+	elif [[ "$version" =~ $SEMVER_REGEX_LEGACY ]]; then
+		# if a second argument is passed, store the result in var named by $2
+		if [[ "$#" -eq "2" ]]; then
+			local major=${BASH_REMATCH[1]}
+			local minor=${BASH_REMATCH[2]}
+			local patch=0
+			local prere=${BASH_REMATCH[4]}
+			local build=${BASH_REMATCH[6]}
+			eval "$2=(\"${major}\" \"${minor}\" \"${patch}\" \"${prere}\" \"${build}\")"
+		else
+			echo "$version"
+		fi
 	else
 		error "version $version does not match the semver scheme 'X.Y.Z(-PRERELEASE)(+BUILD)'. See help for more information."
 	fi