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#!/bin/sh
# usage: $0 [weekly|monthly|quarterly] < filenames
# sorts files of the form VENDOR/BOARD/COMMIT/DATE/revision.txt
# into buckets of the given granularity
weekly() {
date --date="$1" +%GW%V
}
monthly() {
date --date="$1" +%Y-%m
}
quarterly() {
date --date="$1" "+%Y %m" | awk '{ q=int(($2-1)/3+1); print $1 "Q" q}'
}
# TODO: restrict $1 to allowed values
curr=""
sort -r -k4 -t/ | while read file; do
timestamp=`printf $file | cut -d/ -f4`
new=`$1 $timestamp`
if [ "$new" != "$curr" ]; then
if [ "$curr" != "" ]; then
printf "\n"
fi
printf "$new:"
curr=$new
fi
printf "$file "
done
printf "\n"
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