purge-fastly

#!/usr/bin/env bash

# [start-readme]
#
# Run this script to manually purge the [Fastly cache](https://github.com/github/docs-internal#fastly-cdn).
# Note this script requires a `FASTLY_SERVICE_ID` and `FASTLY_TOKEN` in your `.env` file.
#
# [end-readme]

usage()
{
  echo "Error! Unable to purge the Fastly cache"
  echo ""
  echo "Add FASTLY_SERVICE_ID and FASTLY_TOKEN to the environment or create a .env file in the project root and set these values:"
  echo ""
  echo "FASTLY_SERVICE_ID=<value-goes-here>"
  echo "FASTLY_TOKEN=<value-goes-here>"
  exit
}

# attempt to load from .env if Fastly config is not already in ENV
if [ -z "$FASTLY_SERVICE_ID" ] || [ -z "$FASTLY_TOKEN" ]; then
  # abort if .env file doesn't exist
  [ -f .env ] || usage

  # load config from .env
  export $(cat .env | xargs)
fi

if [ -z "$FASTLY_SERVICE_ID" ] || [ -z "$FASTLY_TOKEN" ]; then
  usage
else
  curl -H "fastly-key: $FASTLY_TOKEN" -H "accept: application/json" -H "fastly-soft-purge: 1" -X POST "https://api.fastly.com/service/$FASTLY_SERVICE_ID/purge/all-the-things"
fi