blocked_pr_diffs.sh

REPO="Prismlauncher"
OWNER="Prismlauncher"
PRS=$(
    gh api graphql -f query='
        query($repo: String!, $owner: String!,  $endCursor: String) {
            repository(name: $repo, owner: $owner) {
                pullRequests(first: 100, after: $endCursor, states: [OPEN], labels: ["blocked"]) {
                    nodes {
                        number
                        bodyText
                        isDraft
                        headRef {
                            target {
                                oid
                            }
                            repository {
                                owner {
                                    login
                                }
                                url
                            }
                        }
                        isCrossRepository
                    }
                    pageInfo {
                        hasNextPage
                        endCursor
                    }
                }
            }
        }
    ' \
    -f repo=$REPO \
    -f owner=$OWNER \
    --paginate \
    --jq '.data.repository.pullRequests.nodes[]'  \
        | jq -s \
        | jq 'map(
            select(.isDraft == false)
            | . as $obj 
            | (
                $obj.bodyText | scan("blocked by:? #(?<num>[0-9]+)") | map(tonumber)
            ) as $prs 
            | . + {"blockingPRs" : $prs}
            | del(.bodyText)
        )'
    )
while read pr ; do
    num=$(echo $pr | jq '.number')
    headRef="$(echo $pr | jq -r '.headRef.repository.owner.login'):$(echo $pr | jq -r '.headRef.target.oid')"
    while read blockingPR ; do
        base=$(
            gh api graphql -f repo=$REPO -f owner=$OWNER -F pr=$blockingPR -f query='
                query($repo: String!, $owner: String!, $pr: Int!) {
                    repository(name: $repo, owner: $owner) {
                        pullRequest(number: $pr) {
                            merged
                            headRef {
                                target {
                                    oid
                                }
                                repository {
                                    owner {
                                        login
                                    }
                                    url
                                }
                            }
                        }
                    }
                }
            ' \
            --jq '.data.repository.pullRequest'
        )
        repoOwner=$(echo $base | jq -r '.headRef.repository.owner.login')
        repoUrl=$(echo $base | jq -r '.headRef.repository.url')
        baseRef=$(echo $base | jq -r '.headRef.target.oid')
        echo "$repoUrl/compare/$baseRef...$headRef | $(echo $base | jq -r '.merged');"
    done < <(echo $pr | jq -c '.blockingPRs[]') 
done < <(echo $PRS | jq -c '.[]')