MacOS: Newly created zshenv doesn't have correct permissions

[Netruk44]

I'm running through the zero to nix guide and had an issue during install step. After installation, no newly created Terminal windows knew what the nix command was (zsh: command not found: nix)

I tracked the issue down to the fact that the custom nix installer created a new zsh config file at /etc/zshenv (or /private/etc/zshenv) that zsh is supposed to read. But the file was created with just r/w permissions for the root user:

-rw-------  1 root  wheel  172 Feb 16 11:28 /private/etc/zshenv

If I sudo chmod go+r /etc/zshenv it fixes the issue, and I can run nix in a new Terminal window.

[Hoverbear]

Thanks for this report!

It does look like we're not setting it right, here's the zsh files:

nix-installer/src/action/common/configure_shell_profile.rs

Lines 69 to 76 in c150d60

	CreateOrInsertIntoFile::plan(
	profile_target_path,
	None,
	None,
	None,
	shell_buf.to_string(),
	create_or_insert_into_file::Position::Beginning,
	)

compared to the fish ones

nix-installer/src/action/common/configure_shell_profile.rs

Lines 110 to 119 in c150d60

	create_or_insert_files.push(
	CreateOrInsertIntoFile::plan(
	profile_target,
	None,
	None,
	0o0755,
	fish_buf.to_string(),
	create_or_insert_into_file::Position::Beginning,
	)
	.await?,

I'm working on a fix.

[DimitryAndric]

It's similar for the file /etc/bash.bashrc:

% ls -ltr /etc/ | tail -6
-rw-r-xr-x   1 root  wheel       4 Feb 19 19:34:14 2023 synthetic.conf*
-rw-r--r--   1 root  wheel     135 Feb 19 19:34:16 2023 fstab
-rw-------   1 root  wheel     172 Feb 19 19:34:36 2023 zshenv
-rw-------   1 root  wheel     172 Feb 19 19:34:36 2023 bash.bashrc
-r--r--r--   1 root  wheel     437 Feb 19 19:34:36 2023 bashrc
drwxr-xr-x   3 root  wheel      96 Feb 19 19:34:36 2023 nix/

This is just after nix-install completed. You can see that it created zshenv, bash.bashrc, and updated the 'main' bashrc. The former two are mode 600, however.