build_chroot used to work only if launched from ./devel/, whereas now
it can be launched from anywhere, and it will store the resulting files
in the current directory.

Fixes Issue 459.

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Klaus Aehlig <aehlig@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

If the data directory is not in the expected place, the script complains
with an error message and stops, instead of giving obscure messages.

Partially fixes Issue 459.

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Klaus Aehlig <aehlig@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

Update the script adding explicit version numbers for increased repeatability
of the build environment construction process. Version numbers are aligned
with those used by the external buildbot slack role.

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Klaus Aehlig <aehlig@google.com>

Less is not part of the base debian system, so it has to be added
explicitly.

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

Allows the chroot builder to set the default editor to be used in the
chroot.

Vim is used as the default choice.

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Helga Velroyen <helgav@google.com>

This allows to have newer software than what is available in Debian Squeeze
(the default version of the distribution used by the script), particularly
vim and git.

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

Setting up a proper environment for building a Ganeti can be quite difficult.

This patch adds a script for building a compressed chroot with all the
required libraries and tools.

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>