gource-multiple-repositories.sh

#!/usr/bin/env bash

# Generates gource video out of multiple repositories.
# First, get a local branch/clone of each repository.
# Then, pass the repositories as command line arguments.
#
# Example:
# $ gource-multiple-repositories.sh /path/to/repo1 /path/to/repo2


OUTFILE="gource"
GITBRANCH="master"
TIMESCALE="2.0"
SIZE="1280x720"
FRAMERATE="25"
TITLE=""
HIDE="mouse,progress,filenames"

while getopts ":ho:b:t:s:" opt
do
    case "$opt" in
    o)  OUTFILE="$OPTARG";;
    b)  GITBRANCH="$OPTARG";;
    t)  TIMESCALE="$OPTARG";;
    s)  SIZE="$OPTARG";;
    t)  TITLE="$OPTARG";;
    h|*)  # Usage message
        echo "
usage: $0 [options] repo1 repo2 repo3
-o FILE-BASE    name for output without the .mp4 [${OUTFILE}]
-b BRANCH       a common branch to display       [${GITBRANCH}]
-t SCALE        time scale to use 0-4.0          [${TIMESCALE}]
-s SIZE         video size                       [${SIZE}]
-t NAME         video title                      [${TITLE}]
"
	    exit
	    ;;
    esac
done
shift $(($OPTIND-1))

REPO_TITLES=""
combined_log="$(mktemp /tmp/gource_combined.XXXXXX)"
for repo in $*; do
    if [ -z "${REPO_TITLES}" ]; then
        REPO_TITLES=$repo
    else
        REPO_TITLES="$REPO_TITLES, $repo"
    fi
    
    # output the repo to a logfile
    logfile="$(mktemp /tmp/gource.XXXXXX)"
    gource --git-branch ${GITBRANCH} --output-custom-log "${logfile}" ${repo}

    # namespace the repos
    sed -E 's/(.+)\|/\1\|\/'${repo}'/' ${logfile} >> $combined_log

    # delete temp logfile
    rm ${logfile}
done

[ -z "$TITLE" ] && TITLE="$REPO_TITLES"

# sort the combined_log
sort -n -o $combined_log $combined_log

echo "Committers:"
cat $combined_log | awk -F\| {'print  $2'} | sort | uniq
echo "======================"

time gource $combined_log \
    --time-scale ${TIMESCALE} \
    --title "${TITLE}" \
    -${SIZE} \
    --auto-skip-seconds 1 \
    --seconds-per-day 2 \
    --multi-sampling  \
    --dir-colour 888888 \
    --highlight-users \
    --highlight-dirs \
    --file-idle-time 0 \
    --max-files 0 \
    --hide ${HIDE} \
    --stop-at-end \
    --output-ppm-stream - \
    --output-framerate ${FRAMERATE} \
    | ffmpeg -y -r ${FRAMERATE} \
    -f image2pipe -vcodec ppm -i - -vcodec libx264 \
    -preset ultrafast -pix_fmt yuv420p -crf 1 -threads 0 -bf 0 \
    ${OUTFILE}.mp4

rm $combined_log