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#!/bin/bash

# Bootstrap the Taler setup for the user account that
# is currently logged in.

# The setup generated by this script is suitable for
# blue-green deployments, where two users run
# identical environments, and traffic can be switched
# between them.

# To create a demo setup, run
# demo-blue$ ~/deployment/bootstrap-bluegreen demo
# demo-green$ ~/deployment/bootstrap-bluegreen demo

# There MUST be a user with the same name
# as the deployment basename to share data
# between the blue/green deployment.

set -eu

usage() {
  echo "Usage: $0 ENVNAME"
}

if [ -z ${1+x} ]; then
  usage
  exit 1
fi

ENVNAME=$1

BRANCH=master
CURRENCY=PUDOS
case $ENVNAME in
  demo)
    BRANCH=stable
    CURRENCY=KUDOS
    ;;
esac

cd $HOME

for component in gnunet libmicrohttpd; do
  if ! test -d $HOME/$component; then
    git clone git://gnunet.org/$component.git
  fi
done

git -C ~/gnunet checkout tags/taler-0.2.0
git -C ~/gnunet libmicrohttpd tags/v0.9.52

for component in bank merchant gnurl landing exchange merchant-frontends deployment; do
  if ! test -d $HOME/$component; then
    git clone /var/git/$component.git
  fi
done

for component in bank merchant landing exchange merchant-frontends; do
  echo "Checking out $component to $BRANCH"
  git -C $HOME/$component checkout $BRANCH
done

cat >$HOME/activate <<EOL
#!/bin/bash
export PATH="$HOME/local/bin:$HOME/deployment/bin:\$PATH"
export TALER_CHECKDB="postgres:///talercheck-$USER"
export TALER_CONFIG_CURRENCY=$CURRENCY
export TALER_CONFIG_ENV=$ENVNAME
EOL

ln -sf "/home/$ENVNAME/shared-data" "$HOME"