Make nxagent process aware of its current NX'ish version.

  This feature copies the way how X.Org version string and number
  are propagated at build time.

  First use case: if people start nxagent, it reports its version number
  on stderr. This is about being human-friendly.

  Second use case: None, so far. But it will now be easy to use
  the NXAGENT_VERSION_STRING in later feature add-ons.

1 files changed, 34 insertions, 0 deletions

diff --git a/version.sh b/version.sh
new file mode 100755
index 000000000..891536890
--- /dev/null
+++ b/version.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# Copyright (C) 2015 Mihai Moldovan <ionic@ionic.de>
+# Copyright (C) 2015 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the
+# Free Software Foundation, Inc.,
+# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+
+COMPONENT="$1"
+VERSION_FILE="VERSION"
+
+case "${COMPONENT}" in
+  (1|2|3|4) :;;
+  (*) echo "usage: $(basename ${0}) <position-in-version-number>" >&2; exit 1;;
+esac
+
+# More than one line is not supported.
+VER="$(head -n "1" "${VERSION_FILE}" | cut -d"." -f"${COMPONENT}")"
+
+[ "x${VER}" = "x" ] && VER="0"
+
+printf "${VER}"