fix handling of new semver-style version

Move version extraction to a script, anfs-version.

Change-Id: I52e61c1341e57104060b4b7681b770855f50e17d
Reviewed-on: https://gerrit.franz.com:9080/c/nfs/+/17448
Tested-by: Kevin Layer <layer@franz.com>
Reviewed-by: Kevin Layer <layer@franz.com>

Author: dklayer

Makefile

@@ -50,8 +50,7 @@ MAKENSIS ?= "/cygdrive/c/Program Files (x86)/NSIS/makensis.exe"
 # The variable VER_SUFFIX specifies a modifier appended to the 
 # name of the installer and to the name of the installed application.
 
-version := $(shell grep 'defvar .nfsd-version' nfs-common.cl | sed -e 's,.*"\([a-z0-9.]*\)".*,\1,')
-major-version := $(shell echo $(version) | sed -e 's/\(.*\)\.[0-9]*/\1/')
+version := $(shell ./anfs-version)
 
 default: build
 

anfs-version

@@ -0,0 +1,18 @@
+#! /usr/bin/env bash
+# print the version in nfs-common.cl to stdout
+
+set -eu
+
+string="$(grep 'defvar .nfsd-version' nfs-common.cl)"
+
+if [[ $string =~ nfsd-version..\"([0-9]+)\.([0-9]+)\.([0-9]+)(-(beta[0-9]+))?\" ]]
+then
+    if [ "${BASH_REMATCH[5]-}" ]; then
+	echo ${BASH_REMATCH[1]}.${BASH_REMATCH[2]}.${BASH_REMATCH[3]}-${BASH_REMATCH[5]}
+    else
+	echo ${BASH_REMATCH[1]}.${BASH_REMATCH[2]}.${BASH_REMATCH[3]}
+    fi
+else
+    echo $0: could not extract version from $* 1>&2
+fi
+