awscli2 completion is broken

[qrevel]

Describe the bug
With the awscli2 package, the bash / zsh completion is broken as mentioned in 80956. It seems it is because it tries to open in read/write a database file in the /nix/store (next to the source code).

To Reproduce
Steps to reproduce the behavior:

1. nix-env -i awscli2
2. source /nix/store/rscxkjs268qr4cjv0lzlmdcphwxp4g4h-awscli2-2.0.46/share/zsh/site-functions/aws_zsh_completer.sh
3. Try to autocomplete aws command

Expected behavior
The shell displays completions options

Screenshots

❯  aws Traceback (most recent call last):                                                                                                                                                                                               
  File "/nix/store/rscxkjs268qr4cjv0lzlmdcphwxp4g4h-awscli2-2.0.46/bin/.aws_completer-wrapped", line 37, in <module>                                                                                                                          
    main()                                    
  File "/nix/store/rscxkjs268qr4cjv0lzlmdcphwxp4g4h-awscli2-2.0.46/bin/.aws_completer-wrapped", line 29, in main                                                                                                                              
    autocomplete(command_line, command_index)                                                                          
  File "/nix/store/rscxkjs268qr4cjv0lzlmdcphwxp4g4h-awscli2-2.0.46/lib/python3.8/site-packages/awscli/autocomplete/main.py", line 61, in autocomplete     
    results = completer.autocomplete(command_line, position)
  File "/nix/store/rscxkjs268qr4cjv0lzlmdcphwxp4g4h-awscli2-2.0.46/lib/python3.8/site-packages/awscli/autocomplete/completer.py", line 42, in autocomplete                                                                                    
    parsed = self._parser.parse(command_line, index)                                                                   
  File "/nix/store/rscxkjs268qr4cjv0lzlmdcphwxp4g4h-awscli2-2.0.46/lib/python3.8/site-packages/awscli/autocomplete/parser.py", line 145, in parse                                                                                             
    global_args = self._index.arg_names(lineage=[], command_name='aws')
  File "/nix/store/rscxkjs268qr4cjv0lzlmdcphwxp4g4h-awscli2-2.0.46/lib/python3.8/site-packages/awscli/autocomplete/local/model.py", line 104, in arg_names                                                                                    
    results = db.execute(self._ARG_NAME_QUERY,    
  File "/nix/store/rscxkjs268qr4cjv0lzlmdcphwxp4g4h-awscli2-2.0.46/lib/python3.8/site-packages/awscli/autocomplete/db.py", line 33, in execute       
    return self._connection.execute(query, kwargs)                                                                     
  File "/nix/store/rscxkjs268qr4cjv0lzlmdcphwxp4g4h-awscli2-2.0.46/lib/python3.8/site-packages/awscli/autocomplete/db.py", line 23, in _connection        
    self._db_conn = sqlite3.connect(                
sqlite3.OperationalError: unable to open database file

Additional context
Add any other context about the problem here.

Notify maintainers

Metadata

• system: "x86_64-linux"
• host os: Linux 5.4.74, NixOS, 20.09.1632.a6a3a368dda (Nightingale)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.3.7
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
# a list of nixos modules affected by the problem
module: