Fix npins instructions to use main branches like flakes do.

[ulfbayte]

Hello,

First, thanks for all of this and also making a tutorial :)

I'm a beginner and I'm doing the tutorial https://den.oeiuwq.com/guides/from-zero-to-den/#step-2-pinning-den-and-dependencies so I can't use the standard process for reporting bugs.

I hope I don't waste anyone time with this...

I'm just doing the step 2

The npins + home manager part isn't happy.
Error message seems legit but I think I had to report it here.

[ulfbayte@cyrix:~/nix-config]$ l
total 12K
drwxr-xr-x  3 ulfbayte users 4,0K 11 mars  21:40 .
drwx------ 20 ulfbayte users 4,0K 11 mars  21:25 ..
drwxr-xr-x  2 ulfbayte users 4,0K 11 mars  21:17 modules

[ulfbayte@cyrix:~/nix-config]$ cp -r /etc/nixos/ modules/_nixos

[ulfbayte@cyrix:~/nix-config]$ npins init
[INFO ] Welcome to npins!
[INFO ] Creating `npins` directory
[INFO ] Writing default.nix
[INFO ] Writing initial lock file with nixpkgs entry (need to fetch latest commit first)
[INFO ] Successfully written initial files to 'npins/sources.json'.

[ulfbayte@cyrix:~/nix-config]$ npins add github vic import-tree
[INFO ] Adding 'import-tree' …
    repository: https://github.com/vic/import-tree.git
    pre_releases: false
    submodules: false
    version: v0.1.0
    revision: a037ed2a58fc0ebed9e93b9ef79b0646e648f719
    hash: sha256-TEbh9zISiQcU82VwVoEbmXHnSGlUxTwvjJA9g9ErSDA=
    frozen: false


[ulfbayte@cyrix:~/nix-config]$ npins add github vic flake-aspects
[INFO ] Adding 'flake-aspects' …
    repository: https://github.com/vic/flake-aspects.git
    pre_releases: false
    submodules: false
    version: v0.6.0
    revision: 81a51a8997abe392b9d0794424a4823adc9bd3af
    hash: sha256-e3YqMwdQ2EpVTuWRkK2rkrHywp8QCpkj7x2U53SNoIA=
    frozen: false


[ulfbayte@cyrix:~/nix-config]$ npins add github vic den    
[INFO ] Adding 'den' …
    repository: https://github.com/vic/den.git
    pre_releases: false
    submodules: false
    version: v0.11.0
    revision: 2a654815e310c3a9bd6a64f4fe1afec82444deba
    hash: sha256-T0xYjpbcbyr1a9+2oG3mWBdRsCzXKwec29inS0bgMZE=
    frozen: false


[ulfbayte@cyrix:~/nix-config]$ npins add github vic with-inputs
[INFO ] Adding 'with-inputs' …
    repository: https://github.com/vic/with-inputs.git
    pre_releases: false
    submodules: false
    version: v0.2.0
    revision: 198a16e871b27672edfb3594fd5b25b871d8ce73
    hash: sha256-VF+qg8Uv/x9U2hiuEI4qgI6emMk2SQ73SSMUBvYnTco=
    frozen: false


[ulfbayte@cyrix:~/nix-config]$ npins add github nix-community home-manager
[INFO ] Adding 'home-manager' …
Error: Failed to fully initialize the pin

Caused by:
    Repository has no matching release tags


[ulfbayte@cyrix:~/nix-config]$

I was able to resolve (I hope) the issue as the npins doc say I can pin a branch instead of a release

[ulfbayte@cyrix:~/nix-config]$ npins add github nix-community home-manager --branch release-25.11
[INFO ] Adding 'home-manager' …
    repository: https://github.com/nix-community/home-manager.git
    branch: release-25.11
    submodules: false
    revision: 8f736f007139d7f70752657dff6a401a585d6cbc
    url: https://github.com/nix-community/home-manager/archive/8f736f007139d7f70752657dff6a401a585d6cbc.tar.gz
    hash: sha256-FdrNykOoY9VStevU4zjSUdvsL9SzJTcXt4omdEDZDLk=
    frozen: false

Thanks

[vic]

Oh, yeah when I wrote that I did not remember that home-manager does not has a main branch, I believe it is master, so either -b master or a version as you used works.

Please send a PR using the "Edit" button at the end of that page.

[vic]

Heads up! I see that npins uses releases by default!! So it has added the latest flake-aspect release and the latest Den release, I believe it would be better to specify -b main on all those npins commands. Just for having the same as flakes where the instructions "github:vic/den" reference the main branch. Feel free to send another PR if you are willing.

[ulfbayte]

Thanks, I will check this tomorrow as I have to go to sleep for now :)

[vic]

Fixed in main. 7c85882