Pass the NSIS scripts their own version

Fixes CLIENT-163

Change-Id: I289924af7016878df3fa2b8ba9e9240f5528e5c7
Reviewed-on: http://gerrit.dmdirc.com/1771
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>
Reviewed-by: Greg Holmes <greg@dmdirc.com>

installer/windows/makeInstallerNSIS.sh

@@ -64,12 +64,14 @@ cp ../../../../src/com/dmdirc/res/icon.ico icon.ico
 
 cd ..
 
-makensis -DVERSION="${TAGGED}" -V2 updater.nsi
-makensis -DVERSION="${TAGGED}" -V2 launcher.nsi
-makensis -DVERSION="${TAGGED}" -V2 installer.nsi
+for NSI in updater.nsi launcher.nsi installer.nsi; do
+	LASTCOMMIT=`git rev-list --max-count=1 HEAD -- $NSI`
+	NSISVERSION=`git describe --tags --always $LASTCOMMIT`
+	makensis -DVERSION="${NSISVERSION}" -V2 $NSI;
+done
 
 cd "${OLDDIR}"
-SRC="../../modules/installer/output/DMDirc-${TAGGED}-Setup.exe"
+SRC="../../modules/installer/output/DMDirc-Setup.exe"
 
 doRename=0
 if [ "${TAGGED}" != "" ]; then
@@ -119,4 +121,4 @@ if [ "${signEXE}" = "true" ]; then
 	signexe ${FULLINSTALLER}
 else
 	echo "Not Signing.."
-fi;
+fi;