/dev/tty, /dev/tty0 and /dev/full

See https://bugs.archlinux.org/task/21315

This avoids updating the chroot on every call. See https://bugs.archlinux.org/task/21930

Signed-off-by: Pierre Schmitz <pierre@archlinux.de>

This bypasses a strange pacman behaviour with the --noconfirm parameter.

See https://bugs.archlinux.org/task/21125

Signed-off-by: Pierre Schmitz <pierre@archlinux.de>

Signed-off-by: Florian Pritz <bluewind@xssn.at>
Signed-off-by: Pierre Schmitz <pierre@archlinux.de>

extracting the tarball was done from the wrong directory

Signed-off-by: Ionut Biru <ibiru@archlinux.org>
Signed-off-by: Pierre Schmitz <pierre@archlinux.de>

Instead of just copying the hosts mtab use findmnt. This way only reachable mount points are shown.

This will create chroots on demand if needed.

This makes it possible to use e.g. install=$pkgname.install

also set some sane default options

TEMPDIR is used before packages are copied into it and made it fail
because cannot find any.

Signed-off-by: Ionut Biru <ibiru@archlinux.org>
Signed-off-by: Pierre Schmitz <pierre@archlinux.de>

* Set first enabled mirror found mirrorlist as mirror within the chroot.
* If the mirror is local bind its directory read-only into the chroot.
* Fallback is the kernel.org mirror.

Use en_US.UTF-8 and de_DE.UTF-8 by default (the latter is needed for some packages like gcc)

implements FS#20246