Render Snakemake DAGs in your terminal

snakegraph.sh

# Convert DOT graph data into a terminal-ready visualization
function idot {
  dot \
      -Tpng -Gdpi=300 \
      -Efontsize=18 -Efontname=sans -Nfontname=sans \
      -Gbgcolor=black -Gcolor=white -Ecolor=white -Efontcolor=white -Ncolor=white -Nfontcolor=white \
    | convert -trim -bordercolor black -border 20 -transparent black -resize "60%" - - \
    | imgcat # Or swap with your favorite terminal image viewer
} 

# Render a visualization of the Snakemake pipeline to the terminal
function snakegraph {
  local dag
  local snakefile="${1:-Snakefile}"
  if [ ! -f $snakefile ]; then print "USAGE: snakegraph <Snakefile>"; return 1; fi
  dag=$( snakemake -s "${snakefile}" --forceall --dag ) || return 1
  echo $dag | idot
}

# Inspired by: https://twitter.com/thingskatedid/status/1386077306381242371

nice!