Ignore insecure files and directories in compinit

[maximbaz]

This might be a bit controversial PR, and I'm definitely open for suggestions on how to do things differently.

Let me explain the problem that I'm trying to solve. I have all my dotfiles (including antigen) in my home dir, all of them are owned by my regular user. Sometimes I know that I need to execute a few privileged operations, so instead of prepending each command with sudo I change to root with $ sudo -s and then execute the commands without any prefix.

I like using $ sudo -s, because it preserves my user environment, $HOME directory, my prompt, antigen configuration, everything stays the same. However, when I enter $ sudo -s, I'm welcomed with the following message:

❯ sudo -s
zsh compinit: insecure directories and files, run compaudit for list.
Ignore insecure directories and files and continue [y] or abort compinit [n]?

This happens because of the following:

For security reasons compinit also checks if the completion system would use files not owned by root or by the current user, or files in directories that are world- or group-writable or that are not owned by root or by the current user.

Basically, compinit complains because current user is root, and dotfiles are owned by a different user.

I can't "fix" the permissions, I want my dotfiles to be owned by my own user, so I see this annoying warning every time.

Adding -i is an easy win, this flag makes compinit silently ignore all insecure files and directories.

What do you think about it, can we add it?

[desyncr]

I see no major issues to add it. May be we can create a config for it ANTIGEN_COMPINIT (as we already have ANTIGEN_COMPDUMP).

[maximbaz]

Great! Should the default value for ANTIGEN_COMPINIT be compinit -i or plain compinit?

[desyncr]

Should be compinit for v2.2.3 if there is need for it we may change to compinit -i on v2.4 or greater.

[desyncr]

It seems it doesn't like running compinit -i as ANTIGEN_COMPINIT value. I'll rather use ANTIGEN_COMPINIT_OPTS, see the other PR.

[desyncr]

Merged in #634. Thanks for looking into this!

[maximbaz]

#634 works perfectly, thank you very much!