FM / apt

/usr/lib/dpkg/methods/apt

Name	Size	Mode	Actions
desc.apt	567	0644	edit dl rm
install	2861	0755	edit dl rm
names	39	0644	edit dl rm
setup	7728	0755	edit dl rm
update	1242	0755	edit dl rm

Edit: /usr/lib/dpkg/methods/apt/update (1242B)

#!/bin/bash
set -e

# Set the textdomain for the translations using $"..."
TEXTDOMAIN="apt"

# Get the configuration from /etc/apt/apt.conf
CLEAN="prompt"
OPTS=""
APTGET="/usr/bin/apt-get"
APTCACHE="/usr/bin/apt-cache"
DPKG="/usr/bin/dpkg"
DPKG_OPTS="--admindir=$1"
APT_OPT0="-oDir::State::status=$1/status"
APT_OPT1="-oDPkg::Options::=$DPKG_OPTS"
CACHEDIR="/var/cache/apt"
PROMPT="false"
RES=`apt-config shell CLEAN DSelect::Clean OPTS DSelect::UpdateOptions \
		      DPKG Dir::Bin::dpkg/f APTGET Dir::Bin::apt-get/f \
		      APTCACHE Dir::Bin::apt-cache/f CACHEDIR Dir::Cache/d \
		      PROMPT DSelect::PromptAfterUpdate/b`
eval $RES

# It looks slightly ugly to have a double / in the dpkg output
CACHEDIR=`echo $CACHEDIR | sed -e "s|/$||"`

STATUS=1
if $APTGET $OPTS "$APT_OPT0" "$APT_OPT1" update
then
    echo $"Merging available information"
    rm -f $CACHEDIR/available
    $APTCACHE dumpavail > $CACHEDIR/available
    $DPKG "$DPKG_OPTS" --update-avail $CACHEDIR/available
    rm -f $CACHEDIR/available

case "$CLEAN" in
	Pre-Auto|PreAuto|pre-auto)
	    $APTGET "$APT_OPT0" "$APT_OPT1" autoclean;;
    esac

STATUS=0
fi

if [ x$PROMPT = "xtrue" ]; then
   echo $"Press [Enter] to continue." && read RES;
fi

exit $STATUS

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