text: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  
  # (c) 2014, Kim Nørgaard
  # Written by Kim Nørgaard <jasen@jasen.dk>
  # Based on pkgng module written by bleader <bleader@ratonland.org>
  # that was based on pkgin module written by Shaun Zinck <shaun.zinck at gmail.com>
  # that was based on pacman module written by Afterburn <https://github.com/afterburn>
  # that was based on apt module written by Matthew Williams <matthew@flowroute.com>
  #
  # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
  
  from __future__ import absolute_import, division, print_function
  __metaclass__ = type
  
  
  ANSIBLE_METADATA = {'metadata_version': '1.1',
                      'status': ['preview'],
                      'supported_by': 'community'}
  
  
  DOCUMENTATION = '''
  ---
  module: slackpkg
  short_description: Package manager for Slackware >= 12.2
  description:
      - Manage binary packages for Slackware using 'slackpkg' which
        is available in versions after 12.2.
  version_added: "2.0"
  options:
      name:
          description:
              - name of package to install/remove
          required: true
  
      state:
          description:
              - state of the package, you can use "installed" as an alias for C(present) and removed as one for C(absent).
          choices: [ 'present', 'absent', 'latest' ]
          required: false
          default: present
  
      update_cache:
          description:
              - update the package database first
          required: false
          default: false
          type: bool
  
  author: Kim Nørgaard (@KimNorgaard)
  requirements: [ "Slackware >= 12.2" ]
  '''
  
  EXAMPLES = '''
  # Install package foo
  - slackpkg:
      name: foo
      state: present
  
  # Remove packages foo and bar
  - slackpkg:
      name: foo,bar
      state: absent
  
  # Make sure that it is the most updated package
  - slackpkg:
      name: foo
      state: latest
  '''
  
  from ansible.module_utils.basic import AnsibleModule
  
  
  def query_package(module, slackpkg_path, name):
  
      import glob
      import platform
  
      machine = platform.machine()
      packages = glob.glob("/var/log/packages/%s-*-[%s|noarch]*" % (name,
                                                                    machine))
  
      if len(packages) > 0:
          return True
  
      return False
  
  
  def remove_packages(module, slackpkg_path, packages):
  
      remove_c = 0
      # Using a for loop in case of error, we can report the package that failed
      for package in packages:
          # Query the package first, to see if we even need to remove
          if not query_package(module, slackpkg_path, package):
              continue
  
          if not module.check_mode:
              rc, out, err = module.run_command("%s -default_answer=y -batch=on \
                                                remove %s" % (slackpkg_path,
                                                              package))
  
          if not module.check_mode and query_package(module, slackpkg_path,
                                                     package):
              module.fail_json(msg="failed to remove %s: %s" % (package, out))
  
          remove_c += 1
  
      if remove_c > 0:
  
          module.exit_json(changed=True, msg="removed %s package(s)" % remove_c)
  
      module.exit_json(changed=False, msg="package(s) already absent")
  
  
  def install_packages(module, slackpkg_path, packages):
  
      install_c = 0
  
      for package in packages:
          if query_package(module, slackpkg_path, package):
              continue
  
          if not module.check_mode:
              rc, out, err = module.run_command("%s -default_answer=y -batch=on \
                                                install %s" % (slackpkg_path,
                                                               package))
  
          if not module.check_mode and not query_package(module, slackpkg_path,
                                                         package):
              module.fail_json(msg="failed to install %s: %s" % (package, out),
                               stderr=err)
  
          install_c += 1
  
      if install_c > 0:
          module.exit_json(changed=True, msg="present %s package(s)"
                           % (install_c))
  
      module.exit_json(changed=False, msg="package(s) already present")
  
  
  def upgrade_packages(module, slackpkg_path, packages):
      install_c = 0
  
      for package in packages:
          if not module.check_mode:
              rc, out, err = module.run_command("%s -default_answer=y -batch=on \
                                                upgrade %s" % (slackpkg_path,
                                                               package))
  
          if not module.check_mode and not query_package(module, slackpkg_path,
                                                         package):
              module.fail_json(msg="failed to install %s: %s" % (package, out),
                               stderr=err)
  
          install_c += 1
  
      if install_c > 0:
          module.exit_json(changed=True, msg="present %s package(s)"
                           % (install_c))
  
      module.exit_json(changed=False, msg="package(s) already present")
  
  
  def update_cache(module, slackpkg_path):
      rc, out, err = module.run_command("%s -batch=on update" % (slackpkg_path))
      if rc != 0:
          module.fail_json(msg="Could not update package cache")
  
  
  def main():
      module = AnsibleModule(
          argument_spec=dict(
              state=dict(default="installed", choices=['installed', 'removed', 'absent', 'present', 'latest']),
              name=dict(aliases=["pkg"], required=True, type='list'),
              update_cache=dict(default=False, aliases=["update-cache"],
                                type='bool'),
          ),
          supports_check_mode=True)
  
      slackpkg_path = module.get_bin_path('slackpkg', True)
  
      p = module.params
  
      pkgs = p['name']
  
      if p["update_cache"]:
          update_cache(module, slackpkg_path)
  
      if p['state'] == 'latest':
          upgrade_packages(module, slackpkg_path, pkgs)
  
      elif p['state'] in ['present', 'installed']:
          install_packages(module, slackpkg_path, pkgs)
  
      elif p["state"] in ['removed', 'absent']:
          remove_packages(module, slackpkg_path, pkgs)
  
  
  if __name__ == '__main__':
      main()
  