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`lib.trivial.revisionWithDefault` will change with every Git commit, which causes the manual to be rebuilt on every since PR. Using `nixpkgs.rev` (or the dummy value "master" if it's not present) means that the manual will contain the revision if built on Hydra, but will not otherwise. Why? 1. https://hydra.nixos.org/jobset/nixos/trunk-combined#tabs-configuration shows that `pkgs/top-level/release.nix` is passed the `nixpkgs` attrset, which is a "Git checkout". 2. Git checkouts come from [`builtins.fetchGit`](https://nix.dev/manual/nix/2.18/language/builtins#builtins-fetchGit) and include the `rev` attribute. 3. The `rev` attribute is what `lib.trivial.revisionWithDefault` would have returned. So, using `nixpkgs.rev or "master"` exclusively will cause the rebuilds on every commit to cease, but will allow "official" nixpkgs manual built on Hydra to continue to reference a specific commit. |
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| .. | ||
| epub.nix | ||
| lib-function-docs.nix | ||
| lib-function-locations.nix | ||
| options-doc.nix | ||
| package.nix | ||
| python-interpreter-table.nix | ||