Automated changes by the [update-flake-lock](https://github.com/DeterminateSystems/update-flake-lock) GitHub Action. ``` Flake lock file updates: • Updated input 'nixpkgs': 'github:nixos/nixpkgs/9ca3f649614213b2aaf5f1e16ec06952fe4c2632?narHash=sha256-7EXDb5WBw%2Bd004Agt%2BJHC/Oyh/KTUglOaQ4MNjBbo5w%3D' (2024-05-27) → 'github:nixos/nixpkgs/71e91c409d1e654808b2621f28a327acfdad8dc2?narHash=sha256-GnR7/ibgIH1vhoy8cYdmXE6iyZqKqFxQSVkFgosBh6w%3D' (2024-08-28) ``` ### Running GitHub Actions on this PR GitHub Actions will not run workflows on pull requests which are opened by a GitHub Action. To run GitHub Actions workflows on this PR, run: ```sh git branch -D update_flake_lock_action git fetch origin git checkout update_flake_lock_action git commit --amend --no-edit git push origin update_flake_lock_action --force ``` --------- Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
5.2 KiB
Contributing
All issues and Pull Requests are welcome!
For Pull Requests, if they are substantial changes, please open an issue to discuss the details first.
Chat Support
Come hang out in the Matrix channel. :)
Upstream Changes
One important goal of SHB is to be the smallest amount of code above what is available in nixpkgs. It should be the minimum necessary to make packages available there conform with the contracts. This way, there are less chance of breakage when nixpkgs gets updated. I intend to upstream to nixpkgs as much of those as makes sense.
Run tests
Run all tests:
$ nix flake check
# or
$ nix run github:Mic92/nix-fast-build -- --skip-cached --flake ".#checks.$(nix eval --raw --impure --expr builtins.currentSystem)"
Run one group of tests:
$ nix build .#checks.${system}.modules
$ nix build .#checks.${system}.vm_postgresql_peerAuth
Run one VM test interactively:
$ nix run .#checks.${system}.vm_postgresql_peerAuth.driverInteractive
When you get to the shell, run either start_all()
or test_script()
. The former just starts all
the VMs and service, then you can introspect. The latter also starts the VMs if they are not yet and
then will run the test script.
Upload test results to CI
Github actions do now have hardware acceleration, so running them there is not slow anymore. If needed, the tests results can still be pushed to cachix so they can be reused in CI.
After running the nix-fast-build
command from the previous section, run:
$ find . -type l -name "result-vm_*" | xargs readlink | nix run nixpkgs#cachix -- push selfhostblocks
Deploy using colmena
$ nix run nixpkgs#colmena -- apply
Use a local version of selfhostblocks
This works with any flake input you have. Either, change the .url
field directly in you flake.nix
:
selfhostblocks.url = "/home/me/projects/selfhostblocks";
Or override on the command line:
$ nix flake lock --override-input selfhostblocks ../selfhostblocks
I usually combine the override snippet above with deploying:
$ nix flake lock --override-input selfhostblocks ../selfhostblocks && nix run nixpkgs#colmena -- apply
Diff changes
First, you must know what to compare. You need to know the path to the nix store of what is already deployed and to what you will deploy.
What is deployed
To know what is deployed, either just stash the changes you made and run build
:
$ nix run nixpkgs#colmena -- build
...
Built "/nix/store/yyw9rgn8v5jrn4657vwpg01ydq0hazgx-nixos-system-baryum-23.11pre-git"
Or ask the target machine:
$ nix run nixpkgs#colmena -- exec -v readlink -f /run/current-system
baryum | /nix/store/77n1hwhgmr9z0x3gs8z2g6cfx8gkr4nm-nixos-system-baryum-23.11pre-git
What will get deployed
Assuming you made some changes, then instead of deploying with apply
, just build
:
$ nix run nixpkgs#colmena -- build
...
Built "/nix/store/16n1klx5cxkjpqhrdf0k12npx3vn5042-nixos-system-baryum-23.11pre-git"
Get the full diff
With nix-diff
:
$ nix run nixpkgs#nix-diff -- \
/nix/store/yyw9rgn8v5jrn4657vwpg01ydq0hazgx-nixos-system-baryum-23.11pre-git \
/nix/store/16n1klx5cxkjpqhrdf0k12npx3vn5042-nixos-system-baryum-23.11pre-git \
--color always | less
Get version bumps
A nice summary of version changes can be produced with:
$ nix run nixpkgs#nvd -- diff \
/nix/store/yyw9rgn8v5jrn4657vwpg01ydq0hazgx-nixos-system-baryum-23.11pre-git \
/nix/store/16n1klx5cxkjpqhrdf0k12npx3vn5042-nixos-system-baryum-23.11pre-git \
Generate random secret
$ nix run nixpkgs#openssl -- rand -hex 64
Links that helped
While creating NixOS tests:
- https://www.haskellforall.com/2020/11/how-to-use-nixos-for-lightweight.html
- https://nixos.org/manual/nixos/stable/index.html#sec-nixos-tests
While creating an XML config generator for Radarr:
- https://stackoverflow.com/questions/4906977/how-can-i-access-environment-variables-in-python
- https://stackoverflow.com/questions/7771011/how-can-i-parse-read-and-use-json-in-python
- https://github.com/NixOS/nixpkgs/blob/master/pkgs/build-support/writers/scripts.nix
- https://stackoverflow.com/questions/43837691/how-to-package-a-single-python-script-with-nix
- https://ryantm.github.io/nixpkgs/languages-frameworks/python/#python
- https://ryantm.github.io/nixpkgs/hooks/python/#setup-hook-python
- https://ryantm.github.io/nixpkgs/builders/trivial-builders/
- https://discourse.nixos.org/t/basic-flake-run-existing-python-bash-script/19886
- https://docs.python.org/3/tutorial/inputoutput.html
- https://pypi.org/project/json2xml/
- https://www.geeksforgeeks.org/serialize-python-dictionary-to-xml/
- https://nixos.org/manual/nix/stable/language/builtins.html#builtins-toXML
- https://github.com/NixOS/nixpkgs/blob/master/pkgs/pkgs-lib/formats.nix