This is the master branch of nixpkgs, initially pulled from commit 8debf2f9a63d54ae4f28994290437ba54c681c7b
The intent of this repo is to be merged onto nixpkgs master. This will also be of help for https://git.suyu.dev/BoomMicrophone/suyu-nix-test
which I will need in order for development (it will also be helpful to know what to do for setting up the environment for the master server. Currently I am focusing on this so I can actually see what is still missing)
This repo will be removed once the PR to the nixpkgs github goes through
94c6af494a
This patch makes two changes. (1) It memoizes the computation of dependsOnOld. (2) It replaces rewrittenDerivations with a similar memoized table rewriteMemo. This prevents the entire tree of run-time dependencies from being traversed and instead only traverses the graph of run-time dependencies. In the case of deep dependency changes (such as changing one's bash version for an entire NixOS system) this can lead to an exponential speedup in processing time because shared dependencies are no longer traversed multiple times. This patch isn't quite derivation-per-derivation equivalent to the original computation. There are two immaterial differences. (1) The previous version would always call upon sed to replace oldDependency with newDependency even when the store object being updated doesn't directly depend on oldDependency. The new version only replaceds oldDependency with newDependency when the store object being updated actually directly depends on oldDependency (which means there is actually a hash to replace). (2) The previous version would list the old store object as a source input of the new store object, *except* for the root derivation being updated. Because the root derivation being updated has its actual derivation avaiable the previous verions would make the updated root derivation depend on the old derivation as a derivation input instead of a source input. The new version always lists the old store object as a source input, including the root derivation. |
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| doc | ||
| lib | ||
| maintainers/scripts | ||
| nixos | ||
| pkgs | ||
| .gitignore | ||
| .travis.yml | ||
| .version | ||
| COPYING | ||
| default.nix | ||
| README.md | ||