#!/usr/bin/python
# -*- coding: utf-8 -*-

# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

# this is a virtual module that is entirely implemented server side

ANSIBLE_METADATA = {'metadata_version': '1.1',
                    'status': ['stableinterface'],
                    'supported_by': 'core'}

DOCUMENTATION = r'''
---
module: win_template
version_added: "1.9.2"
short_description: Templates a file out to a remote server
description:
     - Templates are processed by the Jinja2 templating language
       (U(http://jinja.pocoo.org/docs/)) - documentation on the template
       formatting can be found in the Template Designer Documentation
       (U(http://jinja.pocoo.org/docs/templates/)).
     - "Additional variables can be used in templates: C(ansible_managed)
       (configurable via the C(defaults) section of C(ansible.cfg)) contains a string
       which can be used to describe the template name, host, modification time of the
       template file and the owner uid."
     - "C(template_host) contains the node name of the template's machine."
     - "C(template_uid) the owner."
     - "C(template_path) the absolute path of the template."
     - "C(template_fullpath) is the absolute path of the template."
     - "C(template_destpath) is the path of the template on the remote system (added in 2.8)."
     - "C(template_run_date) is the date that the template was rendered."
     - "Note that including a string that uses a date in the template will result in the template being marked 'changed' each time."
     - For other platforms you can use M(template) which uses '\n' as C(newline_sequence).
options:
  src:
    description:
      - Path of a Jinja2 formatted template on the local server. This can be a relative or absolute path.
    type: path
    required: yes
  dest:
    description:
      - Location to render the template to on the remote machine.
    type: path
    required: yes
  backup:
    description:
    - Determine whether a backup should be created.
    - When set to C(yes), create a backup file including the timestamp information
      so you can get the original file back if you somehow clobbered it incorrectly.
    type: bool
    default: no
    version_added: '2.8'
  newline_sequence:
    description:
      - Specify the newline sequence to use for templating files.
    type: str
    choices: [ '\n', '\r', '\r\n' ]
    default: '\r\n'
    version_added: '2.4'
  block_start_string:
    description:
      - The string marking the beginning of a block.
    type: str
    default: '{%'
    version_added: '2.4'
  block_end_string:
    description:
      - The string marking the end of a block.
    type: str
    default: '%}'
    version_added: '2.4'
  variable_start_string:
    description:
      - The string marking the beginning of a print statement.
    type: str
    default: '{{'
    version_added: '2.4'
  variable_end_string:
    description:
      - The string marking the end of a print statement.
    type: str
    default: '}}'
    version_added: '2.4'
  trim_blocks:
    description:
      - If this is set to C(yes) the first newline after a block is removed (block, not variable tag!).
    type: bool
    default: no
    version_added: '2.4'
  force:
    description:
      - If C(yes), will replace the remote file when contents are different
        from the source.
      - If C(no), the file will only be transferred if the destination does
        not exist.
    type: bool
    default: yes
    version_added: '2.4'
notes:
  - Templates are loaded with C(trim_blocks=yes).
  - Beware fetching files from windows machines when creating templates
    because certain tools, such as Powershell ISE,  and regedit's export facility
    add a Byte Order Mark as the first character of the file, which can cause tracebacks.
  - To find Byte Order Marks in files, use C(Format-Hex <file> -Count 16) on Windows, and use C(od -a -t x1 -N 16 <file>) on Linux.
  - "Also, you can override jinja2 settings by adding a special header to template file.
    i.e. C(#jinja2:variable_start_string:'[%', variable_end_string:'%]', trim_blocks: no)
    which changes the variable interpolation markers to  [% var %] instead of  {{ var }}.
    This is the best way to prevent evaluation of things that look like, but should not be Jinja2.
    raw/endraw in Jinja2 will not work as you expect because templates in Ansible are recursively evaluated."
  - You can use the M(win_copy) module with the C(content:) option if you prefer the template inline,
    as part of the playbook.

seealso:
- module: template
- module: win_copy
author:
- Jon Hawkesworth (@jhawkesworth)
'''

EXAMPLES = r'''
- name: Create a file from a Jinja2 template
  win_template:
    src: /mytemplates/file.conf.j2
    dest: C:\Temp\file.conf

- name: Create a Unix-style file from a Jinja2 template
  win_template:
    src: unix/config.conf.j2
    dest: C:\share\unix\config.conf
    newline_sequence: '\n'
    backup: yes
'''

RETURN = r'''
backup_file:
    description: Name of the backup file that was created.
    returned: if backup=yes
    type: str
    sample: C:\Path\To\File.txt.11540.20150212-220915.bak
'''