Shell script to update Docker Hub repository README via API

update-dockerhub-readme.sh

#!/bin/sh
set -e

PAT="YOUR_PAT_HERE"
REPO="yinheli/cpdf"
README_FILE="$(dirname "$0")/note.md"

# Get JWT token
TOKEN=$(curl -sf -X POST "https://hub.docker.com/v2/users/login/" \
  -H "Content-Type: application/json" \
  -d "{\"username\":\"${REPO%%/*}\",\"password\":\"${PAT}\"}" | python3 -c "import sys,json; print(json.load(sys.stdin)['token'])")

# Update README
curl -sf -X PATCH "https://hub.docker.com/v2/repositories/${REPO}/" \
  -H "Authorization: JWT ${TOKEN}" \
  -H "Content-Type: application/json" \
  --data-binary @- <<PAYLOAD
{"full_description": $(python3 -c "import json,sys; print(json.dumps(open(sys.argv[1]).read()))" "$README_FILE")}
PAYLOAD

echo "Done. README updated for ${REPO}"