Update the readme to use the 'diff' subcommand.

This commit is contained in:
Bryan Gardiner 2021-05-16 18:24:42 -07:00
parent 13d3ab1255
commit 1e6e419be3
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@ -17,14 +17,14 @@ coloured specially and changes to this list are reported.
I recommend wrapping your usual `nixos-rebuild` call in a script that compares
the result to the current system:
nixos-rebuild build "$@" && nvd /run/current-system result
nixos-rebuild build "$@" && nvd diff /run/current-system result
Here is an example session. We can see that Nixpkgs updates have been pulled
in, bringing in various package updates. Firefox and cpupower have been
installed explicitly in `systemPackages`, and `bpytop` has been newly added to
the list:
$ nvd /nix/var/nix/profiles/system-{14,15}-link
$ nvd diff /nix/var/nix/profiles/system-{14,15}-link
<<< /nix/var/nix/profiles/system-14-link
>>> /nix/var/nix/profiles/system-15-link
Version changes: