revise pinning nixpkgs #303
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After writing "I keep a note for myself that the “pinning reference” needs some work." i made this draft today. It is mostly based on nix.dev material written by @domenkozar I would like to know if you agree this PR is going into right direction (as outlined by @fricklerhandwerk ). |
| - Using the command line parameter `-I URL` to most of commands like `nix-build`, `nix-shell`, etc <!-- link to ??? tutorial --> | ||
| - Using [builtins.fetchTarball](https://nixos.org/manual/nix/stable/expressions/builtins.html) function that fetches the `URL` at evaluation time <!-- more precise link would be nice --> | ||
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| Possible `URL` values are: |
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URL is a bit inaccurate since it can also be a local path
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The URL is referring here only to the use in nixpkgs=URL like a variable name. I think it is clear within the context?
source/tutorials/pinning-nixpkgs.md
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| - Pinned to a specific commit: `https://github.com/NixOS/nixpkgs/archive/addcb0dddf2b7db505dae5c38fceb691c7ed85f9.tar.gz` | ||
| - Using latest channel, meaning all tests have passed: `http://nixos.org/channels/nixos-21.05/nixexprs.tar.xz` |
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Note that these aren't equivalent. For one, the nixexprs.tar.xz has the programs.sqlite file which contains an index for which package contains which binaries.
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thanks for pointing out
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which are not equivalent?
commit tar.gz and nixos.org tar.gz ?
or
nixos.org and github.com tar.gz that are referring to a release?
remove pinning nixpkgs reference separate pinning nixpkgs from dependency management using niv
Co-authored-by: Silvan Mosberger <github@infinisil.com>
Co-authored-by: Silvan Mosberger <github@infinisil.com>
remove pinning nixpkgs reference
separate pinning nixpkgs from dependency management using niv