Add default reviewers to bitbucket-server pull requests where there are currently 0 reviewers

add_default_reviewers.sh

#!/bin/bash

#set -x
set -e

host='https://my-code.local'

if ! which jq ; then
    echo 'jq not installed.' >&2
    exit 1
fi

username="$(whoami)"
echo "Username ($username):" >&2
read -r username_input
if ! [ "$username_input" = '' ]; then
    username="$username_input"
fi
password=''
while [ "$password" = '' ]; do
    echo "Password: " >&2
    read -s -r password
done

function handle_single_pr(){
    pr="$1"
    # echo "$pr"
    pr_id="$(jq -r '.id' <<< "$pr")"
    pr_version="$(jq -r '.version' <<< "$pr")"
    to_ref="$(jq -r '.toRef.id' <<< "$pr")"
    from_ref="$(jq -r '.fromRef.id' <<< "$pr")"
    to_repo="$(jq -r '.toRef.repository.id' <<< "$pr")"
    from_repo="$(jq -r '.fromRef.repository.id' <<< "$pr")"
    key="$(jq -r '.fromRef.repository.project.key' <<< "$pr")"
    repo_slug="$(jq -r '.fromRef.repository.slug' <<< "$pr")"
    default_reviewers="$(curl -s -f -u "${username}:${password}" "${host}/rest/default-reviewers/1.0/projects/$key/repos/$repo_slug/reviewers?sourceRefId=${from_ref}&targetRefId=${to_ref}&sourceRepoId=${from_repo}&targetRepoId=${to_repo}")"
    default_reviewers_formatted="$(jq -c '[ .[] | {"user":{"name":.name}}]' <<<"$default_reviewers")"
    body="{\"id\":${pr_id},\"version\":${pr_version},\"reviewers\":${default_reviewers_formatted}}"
    default_reviewers_printable="$(jq -c '[ .[] | .name ]' <<<"$default_reviewers")"

    curl -s -f -u "${username}:${password}" -X PUT -H 'Content-Type: application/json' -d "${body}" "${host}/rest/api/1.0/projects/${key}/repos/${repo_slug}/pull-requests/${pr_id}" > /dev/null
    echo "PUT default reviewers ${default_reviewers_printable} to pr against repo '${key}:${repo_slug}'"
    printf '.'
}

is_last_page=false
start=0
while [ "$is_last_page" == 'false' ] ; do
    prs_json="$(curl -s -f -u "${username}:${password}" "${host}/rest/api/1.0/dashboard/pull-requests?limit=10&state=OPEN&role=AUTHOR&start=${start}")"
    is_last_page="$(jq -r '.isLastPage' <<< "$prs_json")"
    size="$(jq -r '.size' <<< "$prs_json")"

    if [ "$size" == 0 ] ; then
        echo 'Nothing to do.'
        break
    else
        echo "Working start:$start is_last_page:$is_last_page size:$size"
        start=$((size+start))
        IFS='
'
        for pr in $(jq -c '.values[] | select((.reviewers | length) == 0)' <<< "$prs_json") ; do
            handle_single_pr "$pr" &
        done
        wait
    fi
done

echo ""
echo "Done"

Great work, thank you!