#!/bin/bash

set -eu

fetch () {
  git clean -fdx
  git fetch
  # reset to updated upstream branch, but only if we're tracking a branch
  branch=$(git rev-parse --abbrev-ref --symbolic-full-name @{u} 2>/dev/null || echo HEAD)
  git reset --hard "$branch"
}

# Local checkout must exist.
cd $HOME/www

git checkout master -f
fetch
git submodule update --init --force
# Generate current version under 'work in progress' (wip) folder
./bootstrap
./configure --variant=stage.taler.net.wip --baseurl="https://stage.taler.net/" --prefix=$HOME
make install
chmod -R g+rx $HOME/stage.taler.net.wip/
# Clean up 'ancient' version (before previous)
rm -rf $HOME/stage.taler.net.old/
# Finally, do two fast renames to make the current version active
mv $HOME/stage.taler.net/ $HOME/stage.taler.net.old/ || true
mv $HOME/stage.taler.net.wip/ $HOME/stage.taler.net/