2021-04-10 06:05:12 +02:00
|
|
|
# nvd - Nix/NixOS package version diff tool
|
|
|
|
|
|
|
|
|
|
**nvd** is a tool for diffing the versions of all store paths in the closures of
|
|
|
|
|
two Nix store paths, neatly summarizing the differences. This is mainly
|
|
|
|
|
intended for comparing two system configurations and is inspired by the output
|
|
|
|
|
of `emerge -pv` from Gentoo's Portage package manager. nvd could also be
|
|
|
|
|
likened to the output of Debian's `apt upgrade -V`, or any equivalent from other
|
|
|
|
|
distributions' package managers. nvd isn't limited to comparing system
|
|
|
|
|
configurations though, and can work with any two store paths.
|
|
|
|
|
|
|
|
|
|
I wrote nvd as a way to see what is changing on my systems when I run
|
|
|
|
|
`nixos-rebuild`. Package rebuilds usually aren't important to me, but I need to
|
|
|
|
|
know when versions change. Usually I care most about packages that are included
|
|
|
|
|
in `environment.systemPackages`, so packages in this list are highlighted and
|
|
|
|
|
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:
|
|
|
|
|
|
2021-05-17 03:24:42 +02:00
|
|
|
nixos-rebuild build "$@" && nvd diff /run/current-system result
|
2021-04-10 06:05:12 +02:00
|
|
|
|
|
|
|
|
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:
|
|
|
|
|
|
2021-05-17 03:24:42 +02:00
|
|
|
$ nvd diff /nix/var/nix/profiles/system-{14,15}-link
|
2021-04-10 06:05:12 +02:00
|
|
|
<<< /nix/var/nix/profiles/system-14-link
|
|
|
|
|
>>> /nix/var/nix/profiles/system-15-link
|
|
|
|
|
Version changes:
|
|
|
|
|
[U*] #1 cpupower 5.4.87 -> 5.4.88
|
|
|
|
|
[U*] #2 firefox 84.0.1 -> 84.0.2
|
|
|
|
|
[U.] #3 firefox-unwrapped 84.0.1 -> 84.0.2
|
|
|
|
|
[U.] #4 initrd-linux 5.4.87 -> 5.4.88
|
|
|
|
|
[U.] #5 linux 5.4.87 -> 5.4.88
|
|
|
|
|
[U.] #6 nixos-system-unnamed 20.09.git.6ad5c94ed93 -> 20.09.git.9bf1626e7bb
|
|
|
|
|
[U.] #7 system76-acpi-module 1.0.1-5.4.87 -> 1.0.1-5.4.88
|
|
|
|
|
[U.] #8 system76-io-module 1.0.1-5.4.87 -> 1.0.1-5.4.88
|
|
|
|
|
[U.] #9 x86_energy_perf_policy 5.4.87 -> 5.4.88
|
|
|
|
|
Added packages:
|
|
|
|
|
[A+] #1 bpytop 1.0.50
|
|
|
|
|
Closure size: 2205 -> 2206 (38 paths added, 37 paths removed, delta +1).
|
|
|
|
|
|
|
|
|
|
## License
|
|
|
|
|
|
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
|
you may not use this file except in compliance with the License.
|
|
|
|
|
You may obtain a copy of the License at
|
|
|
|
|
|
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
|
|
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
|
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
|
See the License for the specific language governing permissions and
|
|
|
|
|
limitations under the License.
|
