get-removed-labels

#!/bin/bash

# Function to display usage
usage() {
	echo "Usage: $0 -o owner -n name -p pr_number"
	exit
}

# Parse command-line arguments
while getopts ":o:n:p:" opt; do
	case $opt in
	o)
		owner="$OPTARG"
		;;
	n)
		name="$OPTARG"
		;;
	p)
		pr_number="$OPTARG"
		;;
	\?)
		echo "Invalid option -$OPTARG" >&2
		usage
		;;
	:)
		echo "Option -$OPTARG requires an argument." >&2
		usage
		;;
	esac
done

# Check if all required arguments are provided
if [ -z "$owner" ] || [ -z "$name" ] || [ -z "$pr_number" ]; then
	usage
fi

response=$(
	gh api graphql \
		--paginate \
		-F number=$pr_number -F owner=$owner -F name=$name \
		-f query='
    query($endCursor: String, $owner: String!, $name: String!, $number: Int!) {
        repository(owner: $owner, name: $name) {
          pullRequest(number: $number) {
            timelineItems(first: 5, after: $endCursor) {
                nodes {
                    __typename
                    ... on UnlabeledEvent {
                        label {
                            name
                        }
                    }
                }
                pageInfo {
                    endCursor
                    hasNextPage
                }
            }
          }
        }
    }
    ' --jq '.data.repository.pullRequest.timelineItems.nodes
        | map(select(.__typename == "UnlabeledEvent") | .label.name)
    '
)

echo $response | jq -s 'add | unique'