factorio-docker/update-dockerhub-description.sh

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#!/bin/bash
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# This script is licensed under MIT and was originally written by Peter Evans. You can find a copy of the MIT license next to this file.
# The original file is available on his Github repo under the following link:
# https://github.com/peter-evans/dockerhub-description/blob/84d38211e27bb9b9effefa718f8c734db8adc5e1/entrypoint.sh
set -euo pipefail
IFS=$'\n\t'
# Set the default path to README.md
README_FILEPATH=${README_FILEPATH:="./README.md"}
# Check the file size
if [[ $(wc -c <${README_FILEPATH}) -gt 25000 ]]; then
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echo "File size exceeds the maximum allowed 25000 bytes"
exit 1
fi
# Acquire a token for the Docker Hub API
echo "Acquiring token"
# shellcheck disable=2089
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LOGIN_PAYLOAD="{\"username\": \"${DOCKERHUB_USERNAME}\", \"password\": \"${DOCKERHUB_PASSWORD}\"}"
TOKEN=$(curl -s -H "Content-Type: application/json" -X POST -d "${LOGIN_PAYLOAD}" https://hub.docker.com/v2/users/login/ | jq -r .token)
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# Send a PATCH request to update the description of the repository
echo "Sending PATCH request"
REPO_URL="https://hub.docker.com/v2/repositories/${DOCKERHUB_REPOSITORY}/"
RESPONSE_CODE=$(curl -s --write-out "%{response_code}" --output /dev/null -H "Authorization: JWT ${TOKEN}" -X PATCH --data-urlencode full_description@${README_FILEPATH} "${REPO_URL}")
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echo "Received response code: $RESPONSE_CODE"
if [[ $RESPONSE_CODE -eq 200 ]]; then
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exit 0
else
exit 1
fi