#!/bin/bash
# Script that will count the number of unique contributors to mediawiki
# projects in a specified month.
# Pass in the command you use to ssh into gerrit, the first day you want to
# include in the calculation, and the last day you want to include.

SSH=$1
EOM=$2
SOM=$3
FILTERS="age:$EOM -age:$SOM status:merged project:^mediawiki.* -owner:L10n-bot"
REMOTECOMM="gerrit query"
TMPFILE=`mktemp`
TTMPFILE=`mktemp`
CURLEN=500
RSK=""
N=0

while [ $CURLEN -eq 500 ]; do
    let N=$N+1
    LFILT=$FILTERS
    if [ "$RSK" != "" ]; then
        LFILT="$FILTERS resume_sortkey:$RSK"
    fi
    FRCOMM="$REMOTECOMM '$LFILT'"
    echo "Getting $N"
    $SSH "$REMOTECOMM '$LFILT'" > $TTMPFILE
    echo "Got it."
    CURLEN=`grep '    name:' < $TTMPFILE | wc -l`
    cat $TMPFILE >> $TTMPFILE
    grep '    name:' < $TTMPFILE | sort -u > $TMPFILE
    echo "Currently have" `wc -l < $TMPFILE`
    echo "$CURLEN results in that fetch."
    RSK=`grep sortKey $TTMPFILE | tail -c 17`
    echo "Next sort starts at $RSK."
done

TOTAL=`wc -l < $TMPFILE`
echo "$TOTAL total unique contributors."