Draft of YunoHost script to upgrade to stretch

yoloupgrade.sh

export DEBIAN_FRONTEND=noninteractive
export APT_LISTCHANGES_FRONTEND=none

###############################################################################

# Update current system

#apt-get update

#apt-get --assume-yes \
#        --force-yes  \
#        dist-upgrade

###############################################################################

# Assertions here (probably not true in general case)
#  - /etc/apt/sources.list.d/yunohost.list exists
#  - no other files to be updated expcet /etc/apt/sources.list and
#    /etc/apt/sources.list.d/yunohost.list

sed -i -e 's@jessie@stretch@g' \
       -e 's@repo.yunohost@vinaigrette.yunohost@g' \
       /etc/apt/sources.list

sed -i -e 's@jessie@stretch@g' \
       -e 's@repo.yunohost@vinaigrette.yunohost@g' \
       /etc/apt/sources.list.d/yunohost.list

###############################################################################

apt-get update

# Prepare for dist-upgrade

echo 'libc6 libraries/restart-without-asking boolean true' | debconf-set-selections

apt-mark hold moulinette
apt-mark hold ssowat
apt-mark hold yunohost
apt-mark hold yunohost-admin
apt-mark hold fail2ban

# Big dist-upgrade
systemctl stop mysql
apt-get --fix-broken    \
        --show-upgraded \
        --assume-yes    \
        -o Dpkg::Options::="--force-confold" \
        -o Dpkg::Options::="--force-confdef" \
        dist-upgrade
systemctl start mysql

# Specific upgrade for fail2ban because it's causing trouble with existing 
# conf (backward compatibility broken) ...
apt-mark unhold fail2ban
mv /etc/fail2ban /etc/fail2ban.old
apt-get --fix-broken    \
        --show-upgraded \
        --assume-yes    \
        -o Dpkg::Options::="--force-confnew" \
        -o Dpkg::Options::="--force-confmiss" \
        -o Dpkg::Options::="--force-confdef" \
        dist-upgrade
service fail2ban restart

# Upgrade YunoHost & co
apt-mark unhold moulinette
apt-mark unhold ssowat
apt-mark unhold yunohost
apt-mark unhold yunohost-admin
apt-get install -y yunohost yunohost-admin moulinette ssowat
yunohost service regen-conf fail2ban --debug --force
yunohost service regen-conf --debug --force # We need this to refresh some conf files modified by upstream packages, e.g. mysql. But this will erase some legit user changes... Gotta think about some UX here :/

# Clean the mess
apt autoremove --assume-yes
apt clean --assume-yes

yoloupgrade_setup.sh

# Setup a ynh-dev container with test stuff

yunohost tools postinstall -d yolo.test -p yunohost
yunohost user create johndoe -f John -l Doe -m johndoe@yolo.test -p yunohost --admin-password yunohost
yunohost app install wordpress -a "domain=yolo.test&path=/blog&admin=johndoe&language=en_US&multisite=0&is_public=1"

apt-get update
apt-get install -y --force-yes       \
                ssowat=2.7.2         \
                yunohost=2.7.2       \
                moulinette=2.7.2     \
                yunohost-admin=2.7.2
                
# Make the damn etckeeper quiet
sed -i 's/GIT_COMMIT_OPTIONS=.*/GIT_COMMIT_OPTIONS="--quiet"/g' /etc/etckeeper/etckeeper.conf