README


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This directory contains my scripts to build backports of R software from Debian
sid to older Debian distributions.

Currently I am using the following setup:

~/.pbuilderrc contains:

  NAME="$DIST-$ARCH"
  APTCACHEHARDLINK=yes
  DISTRIBUTION="$DIST"
  DEBOOTSTRAPOPTS=("--arch" "$ARCH" 
    "--keyring=/usr/share/keyrings/debian-archive-keyring.gpg"
    "${DEBOOTSTRAPOPTS[@]}")
  BASETGZ="`dirname $BASETGZ`/$NAME-base.tgz"
  BUILDRESULT="/var/cache/pbuilder/$NAME/result/"
  APTCACHE="/var/cache/pbuilder/$NAME/aptcache/"
  MIRRORSITE="http://ftp.de.debian.org/debian/"
  OTHERMIRROR="deb http://security.debian.org $DIST/updates main|deb http://localhost/r-cran $DIST-cran3/"
  COMPONENTS="main"

This means I have the appropriate aptcache and buildresult directories set up
under /var/cache/pbuilder. I have several pbuilder images used for package
creation under /var/cache/pbuilder, among others:

  /var/cache/pbuilder/squeeze-i386-base.tgz

With the pbuilderrc mentioned above, this can be created as a normal user with

  export ARCH=i386
  export DIST=squeeze
  sudo -E pbuilder create

Then, using

  sudo -E pbuilder login --save-after-login

these have a standard Debian mirror, the security sources and the Debian
backports repository setup in their /etc/apt/sources.list, as well as my local
http package source where the r-base package build results are available. I
have also imported the apt key of my repository inside the pbuilder chroots.

In the wheezy pbuilder images, the backports repository is not necessary.

For some reason, the keyring option to debootstrap is not used (necessary on
Ubuntu) so I need to pass this on the commandline when building the pbuilder
chroot for wheezy-i386.

When using these scripts on Debian, I used to configure sudo to allow my normal
user to use pbuilder, apt-get and the backporting scripts. Currently, I have 
set up my wheezy installation using the Ubuntu like sudo configuration that
can be selected during installation.