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usr/lib/byobu/updates_available: add support for ArchLinux in the

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updates-available script, LP: #767546
This commit is contained in:
Dustin Kirkland 2011-05-03 11:43:00 -05:00
commit 94e57410c5
2 changed files with 28 additions and 11 deletions
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4
debian/changelog vendored
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@ -1,6 +1,8 @@
byobu (3.34) unreleased; urgency=low
* UNRELEASED
[ https://launchpad.net/~zorun-42 ]
* usr/lib/byobu/updates_available: add support for ArchLinux in the
updates-available script, LP: #767546
-- Dustin Kirkland <kirkland@ubuntu.com> Tue, 19 Apr 2011 16:34:35 -0400

35
usr/lib/byobu/updates_available
View file

@ -72,14 +72,31 @@ update_cache() {
# If yum exists, use it
# TODO: We need a better way of counting updates available from a RH expert
yum list updates -q | grep -vc "Updated Packages" > $mycache &
elif which pacman >/dev/null; then
# If pacman (Archlinux) exists, use it
LC_ALL=C pacman -Sup | grep -vc "^\(::\| \)" > $mycache &
fi
}
PKG="byobu"
# The following is somewhat Ubuntu and Debian specific (apt).
# I would welcome contributions from other distros to make this
# more distro-agnostic.
# Checks if we need to update the cache.
# TODO: add more distro
update_needed() {
mycache=$1
# The cache doesn't exist: create it
[ ! -e "$mycache" ] && return 0
if which apt-get >/dev/null; then
# Debian/ubuntu
[ "/var/lib/apt" -nt "$mycache" ] || [ "/var/lib/apt/lists" -nt "$mycache" ]
return $?
elif which pacman >/dev/null; then
# Archlinux
for db in /var/lib/pacman/sync/*.db; do
[ "$db" -nt "$mycache" ] && return 0
done
return 1
fi
return 1
}
[ -d "/var/run/screen/S-$USER" ] && DIR="/var/run/screen/S-$USER" || DIR="$DATA"
mycache="$DIR/$PKG.updates-available"
@ -87,8 +104,6 @@ mycache="$DIR/$PKG.updates-available"
# If mycache is present, use it
[ -r $mycache ] && print_updates `grep "^[0-9]" $mycache | sed "s/ .*$//"`
# Update the cache if necessary
if [ ! -e "$mycache" ] || [ "/var/lib/apt" -nt "$mycache" ] || [ "/var/lib/apt/lists" -nt "$mycache" ]; then
# If apt is newer than mycache, background an update now
update_cache "$mycache"
fi
# If we really need to do so (mycache doesn't exist, or the package database has changed),
# background an update now
update_needed "$mycache" && update_cache "$mycache"