# Ansible playbook to setup buildbot instance.
# Edit buildbot.hosts to set builder and pass variables.
# Then exec:
#
#   ansible-playbook -i buildbot.hosts buildbot.yml
#
# botuser can be overridden from command line:
#
#   ansible-playbook -i hosts buildbot.yml -e 'botuser=sconsy'
#
# Tested with Ansible 1.5.0, based on
# http://scons.org/wiki/InstallingBuildbotSlaves
# Send questions to:
#
#   anatoly techtonik <techtonik@gmail.com>
#
---
# host is overridable with --extra-vars 'host=address'
- hosts: "{{ host | default('localhost') }}"
  vars:
    # botuser can be overridden with -e 'botuser=scons2'
    - botuser: scons
    - hgrc: /home/{{ botuser }}/.hgrc
    - venv: /home/{{ botuser }}/buildbot-virtualenv
    - work: /home/{{ botuser }}/buildbot-workdir

  vars_prompt:
    - name: maintainer
      prompt: contact details of the builbot owner
      default: name <mail@example.com>
      private: no

  tasks:
  # --- install requirements ---
  - name: ubuntu/debian - make sure mercurial is installed
    apt: pkg={{ item }}
    with_items:
      - mercurial
      - python-virtualenv

  # --- enable mercurial purge extension ---
  - name: create .hgrc if necessary
    stat: path={{ hgrc }}
    register: st
  - file: path={{ hgrc }} owner={{ botuser }} state=touch
    when: not st.stat.exists
  - name: enable mercurial purge extension
    ini_file: dest={{ hgrc }}
              section=extensions option=hgext.purge
              value=

  - name: install buildbot-slave in virtualenv
    pip: name=buildbot-slave virtualenv={{ venv }}

  - name: create buildbot environment
    command: "{{ venv }}/bin/buildslave create-slave
              {{ work }} buildbot.scons.org:9989 {{ builder }} {{ pass }}
              creates={{ work }}"
    sudo: yes
    sudo_user: "{{ botuser }}"

  - name: set contact details of the buildbot owner
    copy: dest="{{ work }}/info/admin" content="{{ maintainer }}"
    notify:
     - restart buildbot

  - name: update host information
    copy: dest="{{ work }}/info/host"
          content="{{ansible_lsb.description}}
                   {{'\n'}}{{ansible_machine}}
                   {{'\n'}}{{ansible_memtotal_mb}}MB RAM
                   {{'\n'}}Python {{ansible_python_version}}"
    notify:
     - restart buildbot

  handlers:
  - name: restart buildbot
    command: "{{ venv }}/bin/buildslave restart {{ work }}"
    sudo: yes
    sudo_user: "{{ botuser }}"