tugfloat

#!/usr/bin/env bash
set -e

print_usage() {
    echo "Manage Tugboat instances with git branch name"
    echo " "
    echo "usage: $0 [options]"
    echo " "
    echo "options:"
    echo "-h, --help                show brief help"
    echo "-b                        name of git branch to preview (required)"
    echo "-p                        name of base preview branch (optional)"
    echo "-r                        tugboat repo ID (required; can be set with TUGBOAT_REPO_ID)"
    echo "-t                        Tugboat API token (required; can be set with TUGBOAT_TOKEN)"
    echo "-o                        operation: launch|sink|link|id"
}

auth_token=${TUGBOAT_TOKEN}
repo_id=${TUGBOAT_REPO_ID}

while getopts 'b:p:r:t:o:' flag; do
    case "${flag}" in
        b) git_branch=${OPTARG};;
        p) git_base_branch=${OPTARG};;
        r) repo_id=${OPTARG} ;;
        t) auth_token=${OPTARG};;
        o) operation=${OPTARG};;
        *) print_usage
           exit 1 ;;
    esac
done
shift $((OPTIND -1))

if [ -z $repo_id ]; then
      echo "No repository ID specified. See --help";
      exit 1;
fi

if [ -z $git_branch ]; then
      echo "No git branch specified. See --help";
      exit 1;
fi

use_token=""
if [ -n "$auth_token" ]; then
      use_token="-t $auth_token"
fi

get_boats(){
    get_preview_ids $git_branch
}

get_preview_ids(){
    get_previews $1 | jq -r '.id'
}

get_previews(){
    tugboat list previews repo=$repo_id $use_token -j | \
        jq ".[] | select(.ref == \"$1\")"
}

sink(){
    for boat in $(get_boats)
    do
        tugboat delete $boat $use_token
	    echo "Deleted tugboat instance with id $boat"
    done
}

get_boat_urls(){
    get_previews $git_branch | jq -r '.url'
}

launch_or_update(){
    for boat in $(get_boats)
    do
        echo "Rebuilding tugboat instance with id $boat"
        tugboat rebuild $boat children=true force=true $use_token
	    return
    done

    base=$(get_preview_ids $git_base_branch | head -n 1)

    if [ -n $base ]; then
        echo "Creating new tugboat preview from git branch $git_branch based on $git_base_branch"
        tugboat create preview $git_branch base=$base repo=$repo_id $use_token
    else
        echo "Creating new tugboat preview from git branch $git_branch"
        tugboat create preview $git_branch repo=$repo_id $use_token
    fi
}

case $operation in
    launch)
        echo "Launching or updating tugboat preview for branch $git_branch"
        launch_or_update
        ;;
    sink)
        echo "Deleting all tugboat previews for branch $git_branch"
        sink
        ;;
    link)
        get_boat_urls
        ;;
    id)
        get_boats
        ;;
    *)
        echo "Operation not specified. See --help"
        ;;
esac