Requires `jq` binary

papertrail-archive.sh

#!/bin/bash

usage() {
  cat <<EOT
Usage: PAPERTRAIL_API_TOKEN=abc123 $0 directory

Save all papertrail archives to outdir.  Existing files will not be
overwritten if they have the correct filesize.

PAPERTRAIL_API_TOKEN can be found under the 'Me -> Profile' in Papertrail,
or from heroku config.
EOT
}

outdir=$1

if [ -z "$outdir" ] ; then
  usage
  exit 1
fi

archives_url=https://papertrailapp.com/api/v1/archives.json

if [ -z "$PAPERTRAIL_API_TOKEN" ] ; then
  echo "PAPERTRAIL_API_TOKEN must be set"
  usage
  exit 1
fi

curl -s -H "X-Papertrail-Token: $PAPERTRAIL_API_TOKEN" $archives_url \
  | jq -r '.[] | "\(.filename) \(.filesize) \(._links.download.href)"' \
  | while read filename filesize href ; do
 outfile=$outdir/$filename
 echo -n "$outfile"
 if [ -f "$outfile" ] ; then
   if [ `stat -c "%s" "$outfile"` -eq $filesize ] ; then
     echo " [SKIP]"
     continue
   else
     echo " [OVERWRITE]"
   fi
 else
   echo " [NEW]"
 fi
 curl -sL -H "X-Papertrail-Token: $PAPERTRAIL_API_TOKEN" -o $outfile $href
done