Ansible: print list of files that will be copied - ansible

Question

I have a playbook that copy files from different local folders to different remote paths and it works, configured to overwrite the files with backup (with copy module).
How to get the list of files that will be copied and overwrite before doing it?
I'd like to prevent to copy wrong files.
Example of the copy:
name: Copy all
copy:
src: scenarios/all_machines/
dest: /path/to/dest
backup: yes
force: yes
owner: root
group: root
mode: 0644
when: ansible_facts.services['crowdsec.service'] is defined
UPDATE
With this local folder:
scenarios/all_machines/
├── wg-sshd-more-logs.yaml
└── wg-x00.yaml
and this remote dir:
test_ansible/
└── wg-x00.yaml
where the wg-x00.yaml file has the same content.
With this playbook (where I changed the '>' char with '<'):
- name: TEST
synchronize:
src: scenarios/all_machines/
dest: test_ansible/
rsync_opts:
- --dry-run
register: result
- debug:
var: result.stdout_lines
- name: TEST 2
set_fact:
overwrite: "{{ file_stat|
selectattr('stat', 'match', '<f.*')|
selectattr('stat', 'ne', '<f+++++++++')|
map(attribute='file')|
list }}"
vars:
file_stat: "{{ result.stdout_lines|
map('regex_replace', regex, replace)|
map('from_yaml')|
list }}"
regex: '^(.*?) (.*)$'
replace: '{file: "\2", stat: "\1"}'
- debug:
var: overwrite
I have this output:
"result.stdout_lines": [
".d..tp..... ./",
"<f+++++++++ wg-sshd-more-logs.yaml",
"<f..tp..... wg-x00.yaml"
]
"overwrite": [
"wg-x00.yaml"
]
So:
I changed the the '>' char with '<' because my output is different from your
The overwrite variable tells me that the file will be overwritten but they are equal...

Answer 1

Given the directories below for testing
shell> tree scenarios/all_machines/
scenarios/all_machines/
├── file1
├── file2
└── file3
0 directories, 3 files
shell> tree dest/
dest/
└── file1
0 directories, 1 file
the file file1 at dest/ will be replaced. The question is how to find it.
Use synchronize and set 'rsync_opts: --dry-run'
- synchronize:
src: scenarios/all_machines/
dest: dest
rsync_opts:
- --dry-run
register: result
The result will display the status of the files
result.stdout_lines:
- .d..t...... ./
- '>f..t...... file1'
- '>f+++++++++ file2'
- '>f+++++++++ file3'
The task below
- set_fact:
overwrite: "{{ file_stat|
selectattr('stat', 'match', '>f.*')|
selectattr('stat', 'ne', '>f+++++++++')|
map(attribute='file')|
list }}"
vars:
file_stat: "{{ result.stdout_lines|
map('regex_replace', regex, replace)|
map('from_yaml')|
list }}"
regex: '^(.*?) (.*)$'
replace: '{file: "\2", stat: "\1"}'
will create the list
file_stat:
- {file: ./, stat: .d..t......}
- {file: file1, stat: '>f..t......'}
- {file: file2, stat: '>f+++++++++'}
- {file: file3, stat: '>f+++++++++'}
and will select names of the existing files only
overwrite:
- file1
See Understanding the output of rsync --itemize-changes.
Notes
Use debug to display the variables. For example, use to_yaml/to_nice_yaml filters
- debug:
var: file_stat|to_yaml
- debug:
var: overwrite|to_nice_yaml
Use yaml callback.
See DEFAULT_STDOUT_CALLBACK on how to configure the callback.