Report if ansible-lint is broken

[ssbarnea]

As ansible-lint have very special requirements for running, we need to be sure that we run ansible-lint --version and report any potential error in a visible way in the UI.

This should make it easier for users to debug broken or incomplete installs of ansible-lint tool.

Related: ansible/ansible-lint#1507

[lilatomic]

I was going to work on this, but there's already a little error popup.
If not installed:

Command failed: ansible-lint  --offline --nocolor -f codeclimate "/tmp/vsc/playbook.yml"
/bin/sh: 1: ansible-lint: not found

If pointing to the ansible-lint in a venv without pointing the rest of the extension to the venv:

Command failed: ./.venv/bin/python /tmp/vsc/.venv/bin/ansible-lint  --offline --nocolor -f codeclimate "/tmp/vsc/playbook.yml"
Failed to guess project directory using git: 
ERROR    No module named 'ansible'
FATAL: ansible-lint requires a version of Ansible package >= 2.9, but none was found. Please install a compatible version using the same python interpreter. See https://docs.ansible.com/ansible/latest/installation_guide/intro_installation.html#installing-ansible-with-pip

I think this issue already done?

[priyamsahoo]

@ssbarnea, @lilatomic This PR: ansible/ansible-language-server#5 takes care of the following issue. If there is some problem in installation or configuration of ansible-lint, it reports the user and falls back to --syntax-check.

[yoshiotobe]

ansible-lint does not work with this extension but works with a previous extension below.

https://marketplace.visualstudio.com/items?itemName=tomaciazek.ansible

The previous one shows red error with ansible-lint as below.

However, this extension does not with the same setting.

I set ansible.path, ansibleLint.path, and python.interpreterPath, but does not work. Other features such as autocompletion are working.

My environment is below.

• OS
  WSL (venv)

• ansible --version
  ansible [core 2.11.2]
  config file = /home/ubuntu/venv/heart-ansible/ansible.cfg
  configured module search path = ['/home/ubuntu/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/ubuntu/venv/lib/python3.8/site-packages/ansible
  ansible collection location = /home/ubuntu/.ansible/collections:/usr/share/ansible/collections
  executable location = /home/ubuntu/venv/bin/ansible
  python version = 3.8.5 (default, May 27 2021, 13:30:53) [GCC 9.3.0]
  jinja version = 3.0.1
  libyaml = True

• ansible-lint --version
  ansible-lint 5.0.12 using ansible 2.11.2

I hope to use ansible-lint with new extension as previous one is deprecated.

[tumbl3w33d]

The Ansible extension 0.7.1 still doesn't have ansible-lint integration working, as @yoshiotobe demonstrated above.

ansible-lint 5.3.2 using ansible 2.12.1

Update: works with extension 0.8.1 and ansible-lint 5.4.0 using ansible 2.12.3