travis-rebuild

#!/usr/bin/env bash
## -*- sh-basic-offset: 2 -*-

set -o errexit -o nounset -o pipefail

BASENAME=$(basename "$0")
BASEURL="https://api.travis-ci.com"

eval "$(docopts -A args -V - -h - : "$@" <<EOF
Usage:
  $BASENAME [options] <repo>
  $BASENAME --help
  $BASENAME --version

Arguments:
  <repo>        Repository slug, eg: adgear/rtb-trader.

Options:
  --build-id=<build_id>      <build_id> to restart
  --branch=<branch>          Rebuild latest build of <branch> [default: master].
  --event-type=<event-type>  Event type to rebuild [default: pull_request].
  --trace                    Print bash trace.
  --help                     Show this message.

----
$BASENAME
EOF
)"

${args[--trace]} && set -o xtrace

get_token() {
  travis token --pro --no-interactive
}

DEFAULT_TOKEN=$(get_token)
: ${TOKEN:=$DEFAULT_TOKEN}

TRAVIS_AUTH_HEADER="Authorization: token ${TOKEN}"
CURL="curl --silent --fail"

get_builds() {
  $CURL -H "$TRAVIS_AUTH_HEADER" \
    "${BASEURL}/repos/${args[<repo>]}/builds?event_type=${args[--event-type]}"
}

get_latest_build_id() {
  get_builds |\
    jq -c "map(select(.branch == \"${args[--branch]}\" and .state == \"finished\")) | .[0].id"
}

get_build_id() {
  if [ "${args[--build-id]}" != "" ]; then
    echo ${args[--build-id]}
  else
    get_latest_build_id
  fi
}

restart_build() {
  local build_id; build_id=$1
  $CURL -X POST -H "$TRAVIS_AUTH_HEADER" \
    "${BASEURL}/builds/${build_id}/restart" |\
    jq '.result'
}

main() {
  local build_id; build_id=$(get_build_id)
  [ "$(restart_build $build_id)" == "true" ]
}

main

Default event-type should probably be push. pull-request events can disappear.