#!/bin/bash

# Handle command errors (-e) and coder sleep deprivation issues (-u)
set -eu
trap 'echo "An error occurred at line $LINENO"; exit 1' EXIT

# Timestamp
DS=`date -u +%Y%m%d%H%M`

if [ $# -ne 1 ]
then
	HEAD='master'
else
	HEAD="$1"
fi

if [ -z "$HEAD" ]
then
	echo "If specified, the refspec must not be empty"
	exit
fi

# Clean up and pull
cd ~/staging/nagiosplugins
git clean -qfdx
git checkout "$HEAD"
git pull origin "$HEAD"
# Tags are important for git-describe
git fetch --tags origin

# Write our snapshot version string (similar to NP-VERSION-GEN) to "release"
VS=$(git describe --abbrev=4 HEAD)

# Configure and dist
tools/setup
./configure
make dist VERSION=${VS#release-} RELEASE=snapshot

# The rest is probably going to change... The mv below is for backwards
# compatibility, however I'd recommend:
# ln -s nagios-plugins-${VS#release-}.tar.gz nagios-plugins-$HEAD.tar.gz
# ln -s nagios-plugins-${VS#release-}.tar.gz nagios-plugins-trunk-$DS.tar.gz
# ln -s nagios-plugins-master.tar.gz nagios-plugins-HEAD.tar.gz
# NB: the 3rd one would be permannent, no need to do it each time
# Additionally, we could check whenever we need to re-generate a snapshot.
# This way we could make snapshots much more often as only symlink changes
# would have to be uploaded.
mv nagios-plugins-${VS#release-}.tar.gz nagios-plugins-trunk-$DS.tar.gz
cp *.tar.gz /tmp/

trap - EXIT