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Diffstat (limited to '')
| -rwxr-xr-x | tests/desktop | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/tests/desktop b/tests/desktop new file mode 100755 index 0000000..bf40549 --- /dev/null +++ b/tests/desktop @@ -0,0 +1,120 @@ +#!/bin/sh +# Try to guess at whether the user would like a desktop installed on their +# system. Of course Debian has many users who use it on a wide array of +# hardware, so this is tricky, but it's only a default. +set -e + +if ! [ "$NEW_INSTALL" ]; then + exit 3 +fi + +arch="$(dpkg --print-architecture)" + +unmark () { + exit 3 +} +mark () { + exit 2 +} + +# A few arches have the lion's share of desktops. +common_desktop_architecture () { + case "$arch" in + i386|amd64|powerpc*) + return 0 + ;; + *) + return 1 + ;; + esac +} + +# On some arches it's almost unheard of to run a desktop, at least using +# this task. +unlikely_desktop_architecture () { + case "$arch" in + m68k|s390|s390x|hppa) + return 0 + ;; + *) + return 1 + ;; + esac +} + +# Modern desktops take a lot of ram. +enough_ram () { + min_ram=64 # MiB + ram=$(grep ^MemTotal: /proc/meminfo | { read x y z; echo $y; }) || true # kb + # The 4 is a fuzz factor to allow for kernel ram usage. + if [ "$ram" ] && [ "$ram" -ge "$(expr $(expr $min_ram - 4) \* 1024)" ]; then + return 0 + else + return 1 + fi +} + +# The desktop task requires 2 gb or so of disk in /usr, and .5 in /var for +# the debs. +# FIXME: this should really be generalised and used for tasksel to not +# suggest any task for which there is not enough disk. +enough_disk () { + min_disk=3 + disk=$(df -P /usr | tail -1 | awk '{print $4}') + if [ "$disk" ] && [ "$disk" -ge "$(expr $min_disk \* 1024 \* 1024)" ]; then + return 0 + else + return 1 + fi +} + +desktop_hardware () { + if which laptop-detect >/dev/null 2>&1 && \ + laptop-detect; then + # Nearly always appropriate to include a desktop. + return 0 + else + # TODO: test for the existence of a framebuffer and a mouse. + # A mouse, in particular, almost always indicates a + # desktop. + : + fi + return 1 +} + +rack_hardware () { + if which dmidecode >/dev/null 2>&1 && \ + dmidecode | grep -q 'Type: Rack Mount Chassis'; then + return 0 + fi + + # XXX further heuristics here to avoid selecting the task on + # high-end hardware that's intended to be used as a server. + # For example, if it has two NICs with link, it's probably a + # server. + + return 1 +} + +if ! enough_ram || ! enough_disk; then + unmark +fi + +if desktop_hardware; then + mark +fi + +if unlikely_desktop_architecture; then + unmark +elif common_desktop_architecture; then + if rack_hardware; then + unmark + else + mark # probably a desktop ... + fi +else + # XXX further heuristics here + : +fi + +unmark |