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pkg_pigs
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pkg_pigs
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#! /bin/sh
#
# Copyright (c) 2015, Peter Piwowarski
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# pkg_pigs: show which packages are using up the most disk space
#
# This tool fetches and prints pkg_info(1)'s estimates size for each installed
# package, sorted in descending order by size, scaled according to a specified
# unit. By default it prints sizes in MB (SI-prefixed), to four decimal places'
# precision, and trims output to fit the terminal; all parameters are controlled
# by the environment variables below.
UNIT="${UNIT:-M}" # K/M/G/KiB/MiB/GiB
PRECISION="${PRECISION:-4}" # precision (k) for dc
LLENGTH="${LLENGTH:-45}" # total length of each output line
FLOOR="${FLOOR:-0}" # only packages larger than $FLOOR$UNIT are shown
PROGRESS="${PROGRESS:-true}" # set to false to disable progress display
NLINES="${NLINES:-24}" # set to 0 to disable trimming
endl='
'
case "$UNIT" in
K)
factor=1000
;;
M) factor=1000000
;;
G)
factor=1000000000
;;
KiB)
factor=1024
;;
MiB)
factor=1048576
;;
GiB)
factor=1073741824
;;
default)
printf '%s\n' "illegal unit $UNIT"
esac
chead() {
if [ "$NLINES" -gt 0 ]
then
head -n"$NLINES"
else
cat
fi
}
pkgs="$(pkg_info -q)"
records=""
for pkg in $pkgs
do
if "$PROGRESS"
then
printf "%-${LLENGTH}s\\r" "$pkg"
fi
size="$(pkg_info -sq "$pkg")"
ssize="$(dc -e "${PRECISION}k $size $factor / p")"
sfloor="$((FLOOR * factor))"
if [ "$size" -ge "$sfloor" ]
then
nlen="$(printf %s "$pkg" | wc -c)"
record="$(printf "%s %$((LLENGTH - nlen))s" "$pkg" "${ssize}${UNIT}")"
records="${records}${endl}${size}@@@${record}"
fi
done
n=0
printf "%s" "${records%%$endl}" | sort -rn | while read -r line && ( [ $n -lt $NLINES ] || [ $NLINES -eq 0 ] )
do
n=$((n + 1))
printf '%d%s\n' $n "${line##*@@@}"
done