s3-resource-simple/assets/in

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#!/bin/sh
# http://concourse.ci/implementing-resources.html#in:-fetch-a-given-resource.
# https://github.com/concourse/git-resource/blob/6fcfbd4/assets/out#L4-L16
set -e
set -x
exec 3>&1 # make stdout available as fd 3 for the result
exec 1>&2 # redirect all output to stderr for logging
dest=$1
if [ -z "$dest" ]; then
echo "usage: $0 <path/to/volume>"
exit 1
fi
#######################################
# parse incoming config data
payload=`cat`
bucket=$(echo "$payload" | jq -r '.source.bucket')
echo "Downloading from S3..."
# http://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html#cli-environment
export AWS_ACCESS_KEY_ID=$(echo "$payload" | jq -r '.source.access_key_id')
export AWS_SECRET_ACCESS_KEY=$(echo "$payload" | jq -r '.source.secret_access_key')
aws s3 sync "s3://$bucket" $dest
echo "...done."
source "$(dirname $0)/emit.sh" >&3