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Chuck 09ac7cb55f nixos/nixos-option: Show values inside aggregate options uniformly 
1. This makes aggregates of submodules (including the very important
"nixos-option users.users.<username>" case) behave the same way as any
other you-need-to-keep-typing-to-get-to-an-option-leaf (eg:
"nixos-option environment").

Before e0780c5:

  $ nixos-option users.users.root
  error: At 'root' in path 'users.users.root': Attribute not found
  An error occurred while looking for attribute names. Are you sure that 'users.users.root' exists?

After e0780c5 but before this change, this query just printed out a raw
thing, which is behavior that belongs in "nix eval", "nix-instantiate
--eval", or "nix repl <<<":

  $ nixos-option users.users.root
  {
    _module = {
      args = { name = "root"; };
      check = true;
    };
    createHome = false;
    cryptHomeLuks = null;
    description = "System administrator";
    ...

After this change:

  $ nixos-option users.users.root
  This attribute set contains:
  createHome
  cryptHomeLuks
  description
  extraGroups
  group
  hashedPassword
  ...

2. For aggregates of other types (not submodules), print out the option
that contains them rather than printing an error message.

Before:

  $ nixos-option environment.shellAliases.l
  error: At 'l' in path 'environment.shellAliases.l': Attribute not found
  An error occurred while looking for attribute names. Are you sure that 'environment.shellAliases.l' exists?

After:

  $ nixos-option environment.shellAliases.l
  Note: showing environment.shellAliases instead of environment.shellAliases.l
  Value:
  {
    l = "ls -alh";
    ll = "ls -l";
    ls = "ls --color=tty";
  }
  ...
2019-12-19 15:00:43 +01:00
..
doc Merge pull request #73968 from mat8913/upower-config-master 2019-12-05 05:25:00 +00:00
lib nixos/test: Use retry() in all looping functions that need timeouts 2019-12-03 16:59:43 +01:00
maintainers ec2/create-amis.sh: register root device as /dev/xvda 2019-11-02 05:58:58 +09:00
modules nixos/nixos-option: Show values inside aggregate options uniformly 2019-12-19 15:00:43 +01:00
tests Merge pull request #75180 from flokli/nixos-test-port-pam-u2f 2019-12-07 23:57:14 +01:00
COPYING
default.nix
README
release-combined.nix nixos/containers-ip: Test both ipv4 and ipv6 in the same script 2019-11-27 09:13:02 +01:00
release-small.nix nixos/containers-ip: Test both ipv4 and ipv6 in the same script 2019-11-27 09:13:02 +01:00
release.nix Merge pull request #68265 from tkerber/rpi4 2019-09-27 14:35:17 -04:00

README 

*** NixOS ***

NixOS is a Linux distribution based on the purely functional package
management system Nix.  More information can be found at
http://nixos.org/nixos and in the manual in doc/manual.