Run Gource on a git repo and generate a 4k movie file movie.mp4

gource-datadog.sh

#!/usr/bin/env bash

# Requirements:
# brew install gource libav ffmpeg

# Feel free to play around with these to test!
FILENAME="output" # mp4 extension is currently hardcoded
TITLE="Datadog Agent" # This title goes bottom left
FRAMERATE="25" # Pick 25, 30, 60
RESOLUTION="3840x2160" # Examples: 1920x1080, 3840x2160, 1280×720
REPO="https://github.com/DataDog/datadog-agent"
BKG="632CA6" # Colour from https://www.datadoghq.com/about/resources/
FONT_SIZE="32" # Looks OK at 4k, try ~20 for 1080p

cd # start at home (~)

# Clone repo then cd to dir
git clone "${REPO}"
cd "$(basename "${REPO}" .git)"

# Read the repo and generate gource video
function gource_output () {
  gource \
   -s .06 \
   -"${RESOLUTION}" \
   --auto-skip-seconds .1 \
   --multi-sampling \
   --stop-at-end \
   --key \
   --highlight-users \
   --file-idle-time 0 \
   --max-files 0 \
   --background-colour "${BKG}" \
   --font-size "${FONT_SIZE}" \
   --title "${TITLE}" \
   --output-ppm-stream - \
   --output-framerate "${FRAMERATE}"
}

# Run avconv to convert output to mp4
function avconv_mp4 () {
  avconv \
    -y \
    -r 30 \
    -f image2pipe \
    -vcodec ppm \
    -i - \
    -b 65536K "${FILENAME}".mp4
}

# Run gource and convert the output
gource_output | avconv_mp4

# Open the movie to preview it
open "${FILENAME}".mp4

# Open the dir to copy the file
# open .

# Go back to home
cd ..