css/script/selector-diff-report

#!/bin/bash
set -e

function log() {
  echo "$@" 1>&2
}

function warn() {
  echo "$@" 1>&2
}

pkg="@primer/css"
path="dist/stats/primer.json"
warn "Pulling the old $path from unpkg.com..."
curl -sL "https://unpkg.com/$pkg/$path" > before.json

warn "Building the stats locally..."
npm run --silent dist
cp $path after.json

key=".selectors.values[]"
jq -r $key before.json > before.txt
jq -r $key after.json > after.txt

warn "[selector report] diff:"
(diff {before,after}.txt | tee selector-diff.log) || log "(no diff!)"
warn "[selector report] end"

rm {before,after}.{json,txt}