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#!/usr/bin/env zsh
# list stats about mpd library file types, to motivate me
# to do better!
local pattern
# if args exist, read them as file extensions in a pattern
if [[ ! -z "$@" ]]; then
pattern=$(echo "$@" | sed -e 's/\s/|/g' -e 's/\(.*\)/(\1)/')
else
# else hackily yoink recognised types from mpd --version
pattern=$(mpd --version \
| sed -n '1h; 1!H; ${g; s/.*Decoders plugins:\(.*\)Output.*/\1/g; p}' \
| sed -e 's/.*\]//' | tr -d '\n' \
| sed -e 's/^ //' -e 's/\s/|/g' -e 's/\(.*\)/(\1)/')
fi
# find file counts
local i=1
local total=0
local totalstr='total'
local counts=()
local types=()
find ~/music -type f -regextype posix-extended \
-regex ".*\.$pattern" | grep -oE "\.$pattern$" \
| sort | uniq -c | sed -e 's/^\s*\([0-9]* \)\./\1/' | \
while read -A line; do
counts[$i]=${line[1]}
types[$i]=${line[2]}
total=$(( $total + ${line[1]} ))
i=$(( $i + 1 ))
done
# calculate percentages
local twidth=0
local cwidth=0
local percentages=()
for i in {1..${#types}}; do
percentages[$i]="%$(calc -p \
"a=${counts[$i]} * 100 / $total; round(a, 5-digits(a), 16)" \
| tr -d '~')"
done
types=( 'type' "${types[@]}" 'total' )
counts=( 'count' "${counts[@]}" $total )
percentages=( 'percent' "${percentages[@]}" ' ')
# calculate padding widths
for i in {1..${#types}}; do
if [[ ${#types[$i]} -gt $twidth ]]; then
twidth=${#types[$i]}
fi
if [[ ${#counts[$i]} -gt $cwidth ]]; then
cwidth=${#counts[$i]}
fi
done
# print results
local linelen=$(( $twidth + $cwidth + 13 ))
local j
echo -n "┌"
for (( j=0; j < $linelen; j++ )); do
echo -n "─"
done
echo "┐"
for i in {1..${#types}}; do
if [[ $i -eq 2 || $i -eq ${#types} ]]; then
echo -n "├"
for (( j=0; j < $linelen; j++ )); do
echo -n "─"
done
echo "┤"
fi
if [[ $i -eq 1 ]]; then
printf "│ %${twidth}s " "${types[$i]}"
else
printf "│ %${twidth}s: " "${types[$i]}"
fi
printf "%${cwidth}s" "${counts[$i]}"
if [[ $i -eq 1 || $i -eq ${#types} ]]; then
printf " %-7s │\n" "${percentages[$i]}"
else
printf ", %-7s │\n" "${percentages[$i]}"
fi
done
echo -n "└"
for (( j=0; j < $linelen; j++ )); do
echo -n "─"
done
echo "┘"
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