##### SUMMARY

Ansible galaxy collection installation in command line fails when parameter is an URL.

```Shell
ansible-galaxy collection install http://repo.company.com/ansible-collection/my_namespace-my_collection-0.1.tar.gz
Process install dependency map
ERROR! Invalid collection name 'http', name must be in the format <namespace>.<collection>.
```

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME

**ansible-galaxy**

*collection_name* as url parameter should be supported according the documentation:

```Shell
ansible-galaxy collection install -h

positional arguments:
  collection_name       The collection(s) name or path/url to a tar.gz
                        collection artifact. This is mutually exclusive with
                        --requirements-file.
```

##### ANSIBLE VERSION

```
ansible 2.9.1
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/home/ubuntu/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /tmp/venv-project/local/lib/python2.7/site-packages/ansible
  executable location = /tmp/venv-project/bin/ansible
  python version = 2.7.15+ (default, Oct  7 2019, 17:39:04) [GCC 7.4.0]
```

##### CONFIGURATION

```
DEFAULT_VAULT_PASSWORD_FILE(env: ANSIBLE_VAULT_PASSWORD_FILE) = /home/ubuntu/.ansible/.vault-dev.txt
HOST_KEY_CHECKING(/etc/ansible/ansible.cfg) = False
```

##### OS / ENVIRONMENT

OS : Ubuntu. Ansible usage via native *apt* package or *pip*.

##### STEPS TO REPRODUCE

Create some ansible collection and publish/upload it on some http endpoint: `http://repo.company.com/ansible-collection/my_namespace-my_collection-0.1.tar.gz`

Installation via local file is working fine (=> collection package is correct):
```Shell
rm -rf ~/.ansible/collections/
wget http://repo.company.com/ansible-collection/my_namespace-my_collection-0.1.tar.gz
ansible-galaxy collection install my_namespace-my_collection-0.1.tar.gz

Process install dependency map
Starting collection install process
Installing 'my_namespace-my_collection:0.1-SNAPSHOT' to '/home/ubuntu/.ansible/collections/ansible_collections/my_namespace/my_collection'
```

Installation via [requirement file](https://docs.ansible.com/ansible/latest/galaxy/user_guide.html#install-multiple-collections-with-a-requirements-file) (like #61680) is working fine too:

With `requirements.yml`:

```YAML
---
collections:
- name: http://repo.company.com/ansible-collection/my_namespace-my_collection-0.1.tar.gz
```

```Shell
rm -rf ~/.ansible/collections/
ansible-galaxy collection install -r requirements.yml

Process install dependency map
Starting collection install process
Installing 'my_namespace-my_collection:0.1-SNAPSHOT' to '/home/ubuntu/.ansible/collections/ansible_collections/my_namespace/my_collection'
```

But using command line installation fails:

```Shell
rm -rf ~/.ansible/collections/
ansible-galaxy collection install http://repo.company.com/ansible-collection/my_namespace-my_collection-0.1.tar.gz
Process install dependency map
ERROR! Invalid collection name 'http', name must be in the format <namespace>.<collection>.
```

##### EXPECTED RESULTS

```Shell
Installing 'my_namespace-my_collection:0.1-SNAPSHOT' to '/home/ubuntu/.ansible/collections/ansible_collections/my_namespace/my_collection'
```

##### ACTUAL RESULTS

```Shell
ERROR! Invalid collection name 'http', name must be in the format <namespace>.<collection>.
```

for name, version, source in collections:
        _get_collection_info(dependency_map, existing_collections, name, version, source, b_temp_path, apis,
                             validate_certs, (force or force_deps))
    checked_parents = set([to_text(c) for c in dependency_map.values() if c.skip])
    while len(dependency_map) != len(checked_parents):
        while not no_deps:  
            parents_to_check = set(dependency_map.keys()).difference(checked_parents)
            deps_exhausted = True
            for parent in parents_to_check:
                parent_info = dependency_map[parent]
                if parent_info.dependencies:
                    deps_exhausted = False
                    for dep_name, dep_requirement in parent_info.dependencies.items():
                        _get_collection_info(dependency_map, existing_collections, dep_name, dep_requirement,
                                             parent_info.api, b_temp_path, apis, validate_certs, force_deps,
                                             parent=parent)
                    checked_parents.add(parent)
            
            if deps_exhausted:
                break
        
        
        deps_not_checked = set(dependency_map.keys()).difference(checked_parents)
        for collection in deps_not_checked:
            dependency_map[collection].set_latest_version()
            if no_deps or len(dependency_map[collection].dependencies) == 0:
                checked_parents.add(collection)
    return dependency_map
def _get_collection_info(dep_map, existing_collections, collection, requirement, source, b_temp_path, apis,