tinc/src/version.h
Etienne Dechamps e024b7a2c5 Use git description as the tinc version.
Instead of using a hardcoded version number in configure.ac, this makes
tinc use the live version reported by "git describe", queried on-the-fly
during the build process and regenerated for every build.

This provides several advantages:
 - Less redundancy: git is now the source of truth for version
   information, no need to store it in the repository itself.
 - Simpler release process: just creating a git tag automatically
   updates the version. No need to change files.
 - More useful version information: tinc will now display the number of
   commits since the last tag as well as the commit the binary is built
   from, following the format described in git-describe(1).

Here's an example of tincd --version output:

  tinc version release-1.1pre10-48-gc149315 (built Jun 29 2014 15:21:10, protocol 17.3)

When building directly from a release tag, this would like the following:

  tinc version release-1.1pre10 (built Jun 29 2014 15:21:10, protocol 17.3)

(Note that the format is slightly different - because of the way the
tags are named, it says "release-1.1pre10" instead of just "1.1pre10")
2014-06-29 16:57:19 +01:00

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C

/*
version.h -- header for version.c
Copyright (C) 2014 Etienne Dechamps <etienne@edechamps.fr>
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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __TINC_VERSION_H__
#define __TINC_VERSION_H__
extern const char* const BUILD_DATE;
extern const char* const BUILD_TIME;
extern const char* const BUILD_VERSION;
#endif /* __TINC_VERSION_H__ */