# file module tests for dealing with symlinks (state=link)

- name: Initialize the test output dir
  include: initialize.yml

#
# Basic absolute symlink to a file
# 
- name: create soft link to file
  file: src={{output_file}} dest={{output_dir}}/soft.txt state=link
  register: file1_result

- name: Get stat info for the link
  stat:
    path: '{{ output_dir }}/soft.txt'
    follow: False
  register: file1_link_stat

- name: verify that the symlink was created correctly
  assert:
    that:
      - 'file1_result is changed'
      - 'file1_link_stat["stat"].islnk'
      - 'file1_link_stat["stat"].lnk_target | expanduser == output_file | expanduser'

#
# Change an absolute soft link into a relative soft link
#
- name: change soft link to relative
  file: src={{output_file|basename}} dest={{output_dir}}/soft.txt state=link
  register: file2_result

- name: Get stat info for the link
  stat:
    path: '{{ output_dir }}/soft.txt'
    follow: False
  register: file2_link_stat

- name: verify that the file was marked as changed
  assert:
    that:
      - "file2_result is changed"
      - "file2_result.diff.before.src == remote_file_expanded"
      - "file2_result.diff.after.src == remote_file_expanded|basename"
      - "file2_link_stat['stat'].islnk"
      - "file2_link_stat['stat'].lnk_target == remote_file_expanded | basename"

#
# Check that creating the soft link a second time was idempotent
#
- name: soft link idempotency check
  file: src={{output_file|basename}} dest={{output_dir}}/soft.txt state=link
  register: file3_result

- name: Get stat info for the link
  stat:
    path: '{{ output_dir }}/soft.txt'
    follow: False
  register: file3_link_stat

- name: verify that the file was not marked as changed
  assert:
    that:
      - "not file3_result is changed"
      - "file3_link_stat['stat'].islnk"
      - "file3_link_stat['stat'].lnk_target == remote_file_expanded | basename"

#
# Test symlink to nonexistent files
#
- name: fail to create soft link to non existent file
  file:
    src: '/nonexistent'
    dest: '{{output_dir}}/soft2.txt'
    state: 'link'
    force: False
  register: file4_result
  ignore_errors: true

- name: verify that link was not created
  assert:
    that:
      - "file4_result is failed"

- name: force creation soft link to non existent
  file:
    src: '/nonexistent'
    dest: '{{ output_dir}}/soft2.txt'
    state: 'link'
    force: True
  register: file5_result

- name: Get stat info for the link
  stat:
    path: '{{ output_dir }}/soft2.txt'
    follow: False
  register: file5_link_stat

- name: verify that link was created
  assert:
    that:
      - "file5_result is changed"
      - "file5_link_stat['stat'].islnk"
      - "file5_link_stat['stat'].lnk_target == '/nonexistent'"

- name: Prove idempotence of force creation soft link to non existent
  file:
    src: '/nonexistent'
    dest: '{{ output_dir }}/soft2.txt'
    state: 'link'
    force: True
  register: file6a_result

- name: verify that the link to nonexistent is idempotent
  assert:
    that:
      - "file6a_result.changed == false"

#
# Test creating a link to a directory https://github.com/ansible/ansible/issues/1369
#
- name: create soft link to directory using absolute path
  file:
    src: '/'
    dest: '{{ output_dir }}/root'
    state: 'link'
  register: file6_result

- name: Get stat info for the link
  stat:
    path: '{{ output_dir }}/root'
    follow: False
  register: file6_link_stat

- name: Get stat info for the pointed to file
  stat:
    path: '{{ output_dir }}/root'
    follow: True
  register: file6_links_dest_stat

- name: Get stat info for the file we intend to point to
  stat:
    path: '/'
    follow: False
  register: file6_dest_stat

- name: verify that the link was created correctly
  assert:
    that:
      # file command reports it created something
      - "file6_result.changed == true"
      # file command created a link
      - 'file6_link_stat["stat"]["islnk"]'
      # Link points to the right path
      - 'file6_link_stat["stat"]["lnk_target"] == "/"'
      # The link target and the file we intended to link to have the same inode
      - 'file6_links_dest_stat["stat"]["inode"] == file6_dest_stat["stat"]["inode"]'

#
# Test creating a relative link
#

# Relative link to file
- name: create a test sub-directory to link to
  file:
    dest: '{{ output_dir }}/sub1'
    state: 'directory'

- name: create a file to link to in the test sub-directory
  file:
    dest: '{{ output_dir }}/sub1/file1'
    state: 'touch'

- name: create another test sub-directory to place links within
  file:
    dest: '{{output_dir}}/sub2'
    state: 'directory'

- name: create soft link to relative file
  file:
    src: '../sub1/file1'
    dest: '{{ output_dir }}/sub2/link1'
    state: 'link'
  register: file7_result

- name: Get stat info for the link
  stat:
    path: '{{ output_dir }}/sub2/link1'
    follow: False
  register: file7_link_stat

- name: Get stat info for the pointed to file
  stat:
    path: '{{ output_dir }}/sub2/link1'
    follow: True
  register: file7_links_dest_stat

- name: Get stat info for the file we intend to point to
  stat:
    path: '{{ output_dir }}/sub1/file1'
    follow: False
  register: file7_dest_stat

- name: verify that the link was created correctly
  assert:
    that:
      # file command reports it created something
      - "file7_result.changed == true"
      # file command created a link
      - 'file7_link_stat["stat"]["islnk"]'
      # Link points to the right path
      - 'file7_link_stat["stat"]["lnk_target"] == "../sub1/file1"'
      # The link target and the file we intended to link to have the same inode
      - 'file7_links_dest_stat["stat"]["inode"] == file7_dest_stat["stat"]["inode"]'

# Relative link to directory
- name: create soft link to relative directory
  file:
    src: sub1
    dest: '{{ output_dir }}/sub1-link'
    state: 'link'
  register: file8_result

- name: Get stat info for the link
  stat:
    path: '{{ output_dir }}/sub1-link'
    follow: False
  register: file8_link_stat

- name: Get stat info for the pointed to file
  stat:
    path: '{{ output_dir }}/sub1-link'
    follow: True
  register: file8_links_dest_stat

- name: Get stat info for the file we intend to point to
  stat:
    path: '{{ output_dir }}/sub1'
    follow: False
  register: file8_dest_stat

- name: verify that the link was created correctly
  assert:
    that:
      # file command reports it created something
      - "file8_result.changed == true"
      # file command created a link
      - 'file8_link_stat["stat"]["islnk"]'
      # Link points to the right path
      - 'file8_link_stat["stat"]["lnk_target"] == "sub1"'
      # The link target and the file we intended to link to have the same inode
      - 'file8_links_dest_stat["stat"]["inode"] == file8_dest_stat["stat"]["inode"]'

# test the file module using follow=yes, so that the target of a
# symlink is modified, rather than the link itself

- name: create a test file
  copy:
    dest: '{{output_dir}}/test_follow'
    content: 'this is a test file\n'
    mode: 0666

- name: create a symlink to the test file
  file:
    path: '{{output_dir}}/test_follow_link'
    src: './test_follow'
    state: 'link'

- name: modify the permissions on the link using follow=yes
  file:
    path: '{{output_dir}}/test_follow_link'
    mode: 0644
    follow: yes
  register: file9_result

- name: stat the link target
  stat:
    path: '{{output_dir}}/test_follow'
  register: file9_stat

- name: assert that the chmod worked
  assert:
    that:
      - 'file9_result is changed'
      - 'file9_stat["stat"]["mode"] == "0644"'

#
# Test modifying the permissions of a link itself
#
- name: attempt to modify the permissions of the link itself
  file:
    path: '{{output_dir}}/test_follow_link'
    src: './test_follow'
    state: 'link'
    mode: 0600
    follow: False
  register: file10_result

# Whether the link itself changed is platform dependent! (BSD vs Linux?)
# Just check that the underlying file was not changed
- name: stat the link target
  stat:
    path: '{{output_dir}}/test_follow'
  register: file10_target_stat

- name: assert that the link target was unmodified
  assert:
    that:
      - 'file10_result is changed'
      - 'file10_target_stat["stat"]["mode"] == "0644"'
