mattermostLatest: init at 10.3.1

[numinit]

Create mattermostLatest to pull in the latest Mattermost. This works fine with all the NixOS tests, but that won't be PRed here. Instead, we will do it in #208181 which will not be backported. If people choose the latest Mattermost, they are accepting a little less stability (in general, but especially for now).

Depends-on: #373085

Backport label this since it affects the autoupdate.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 25.05 Release Notes (or backporting 24.11 and 25.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[numinit]

@fsagbuya No changes were necessary for this to get it working

[fsagbuya]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 373113

[fsagbuya]

LGTM. :)

[numinit]

Looks like an empty result? In any case I think it's just a nix-build -A mattermostLatest

[fsagbuya]

Looks like an empty result? In any case I think it's just a nix-build -A mattermostLatest

nix-build -A mattermostLatest && ls -lhLS result/
/nix/store/zspzwzcf4mvq44szgchvvah3xl1qzb0k-mattermost-10.3.1
total 52K
dr-xr-xr-x 8 root root  28K Jan  1  1970 client
dr-xr-xr-x 2 root root 4.0K Jan  1  1970 bin
dr-xr-xr-x 2 root root 4.0K Jan  1  1970 config
dr-xr-xr-x 2 root root 4.0K Jan  1  1970 fonts
dr-xr-xr-x 2 root root 4.0K Jan  1  1970 i18n
dr-xr-xr-x 3 root root 4.0K Jan  1  1970 templates

Package built. Can nixosTests.mattermost be applied to this as well?

EDIT: Okay, I think you already mentioned that in the description. Otherwise, I'm good with this PR. Nice!

[numinit]

It will be in #208181, but I manually replaced pkgs.mattermost with pkgs.mattermostLatest and they all passed. #208181 changes the module enough (in a backwards compatible way, but a way that affects the tests nonetheless) that it's probably not worth casing out the tests in this PR.

I've not pushed up the changes just yet but it starts with Mattermost ESR and then switches to a config specialization that switches to mattermostLatest to make sure migrations work.