Customization for rpi minimal images

etc-apt-apt.conf.d-02nocache

Dir::Cache {
  srcpkgcache "";
  pkgcache "";
}

etc-apt-apt.conf.d-50raspi

# never use pdiffs. Current implementation is very slow on low-powered devices
Acquire::PDiffs "0";

# download up to 5 pdiffs:
#Acquire::PDiffs::FileLimit "5";

etc-apt-apt.conf.d-99progressbar

Dpkg::Progress-Fancy "1";

etc-dpkg-dpkg.cfg.d-01nodoc

# from https://wiki.ubuntu.com/ReducingDiskFootprint
path-exclude /usr/share/doc/*
# we need to keep copyright files for legal reasons
path-include /usr/share/doc/*/copyright
path-exclude /usr/share/man/*
path-exclude /usr/share/groff/*
path-exclude /usr/share/info/*
# lintian stuff is small, but really unnecessary
path-exclude /usr/share/lintian/*
path-exclude /usr/share/linda/*

etc-dpkg-dpkg.cfg.d-02nolocale

# from https://wiki.ubuntu.com/ReducingDiskFootprint
path-exclude /usr/share/locale/*
path-include /usr/share/locale/en*
path-include /usr/share/locale/it*

nodoc script

find /usr/share/doc -depth -type f ! -name copyright|xargs rm
find /usr/share/doc -empty|xargs rmdir
rm -rf /usr/share/man /usr/share/groff /usr/share/info /usr/share/lintian /usr/share/linda /var/cache/man

nolocale script

find /usr/share/locale -mindepth 1 -maxdepth 1 ! -name 'en' ! -name 'it*' !  -name 'locale.alias' |xargs rm -r