wpt-stats

#!/bin/bash -e

SINCE="2017-04-10T00:00Z"

# --since uses the committer date and we use UTC cutoffs, so other date handling
# must also use commiter dates in UTC.
export TZ=UTC

(
    find * -maxdepth 0 -type d | grep -v '^css$'
    find css -mindepth 1 -maxdepth 1 -type d
) | while read d; do
    FILE_COUNT=`find $d -type f | wc -l`
    # du uses 512 byte blocks and thus inflates the size by a lot
    #FILE_SIZE=`du -k $d | tail -1 | awk '{print $1}'`
    FILE_SIZE=`find $d -type f -print0 | xargs -0 cat | wc -c`
    TOP_COMMITTERS=`git log --no-merges --pretty=%ae --since=$SINCE -- $d/ | sort | uniq -c | sort -n -r | head -3 | awk '{print $2}'`
    # in in metric html, tools and webrtc come out on top, matching my hunches
    COMMIT_COUNT=`git rev-list --no-merges --count --since=$SINCE HEAD -- $d/`
    # in this metric html, service-workers and tools come out on top
    DAYS_OF_ACTIVITY=`git log --no-merges --pretty=%cd --date=iso-local --since=$SINCE -- $d/ | cut -c1-10 | sort | uniq | wc -l`
    # in this metric core-aam and others with low commit count and day-to-day activity come out on top
    #TOUCHED_FILE_COUNT=`git log --no-merges --pretty="" --name-only --since=$SINCE HEAD -- $d/ | wc -l`
    printf '%-30s %8s %8s %8s %8s    %s\n' $d $FILE_COUNT $FILE_SIZE $COMMIT_COUNT $DAYS_OF_ACTIVITY "$(echo $TOP_COMMITTERS)"
done