css/script/selector-diff-report

#!/bin/bash
set -e

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

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

if [[ ! -f $path ]]; then
    log "Building the stats locally..."
    npm run dist
fi
cp $path after.json

function list_selectors() {
    jq -r '.cssstats.selectors.values[]' $1 | sort
}

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

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

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

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