From 0e38720502c10ddba4afb8c49532b69be83e23a7 Mon Sep 17 00:00:00 2001 From: Maximilian Bosch Date: Fri, 3 May 2024 16:43:28 +0200 Subject: Revert "Revert "Merge pull request #6621 from Kha/nested-follows"" This reverts commit a8b3d777fbdaf0b732f129e5be62cd2a1227674b. This undoes the revert of PR#6621, which allows nested `follows`, i.e. { inputs = { foo.url = "github:bar/foo"; foo.inputs.bar.inputs.nixpkgs = "nixpkgs"; }; } does the expected thing now. This is useful to avoid the 1000 instances of nixpkgs problem without having each flake in the dependency tree to expose all of its transitive dependencies for modification. This was in fact part of Nix before and the C++ changes applied w/o conflicts. However, it got reverted then because people didn't want to merge lazy-trees against it which was supposed to be merged soon back in October 2022. Fixes: https://git.lix.systems/lix-project/lix/issues/201 Change-Id: I5ddef914135b695717b2ef88862d57ced5e7aa3c --- doc/manual/rl-next/fix-nested-follows.md | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 doc/manual/rl-next/fix-nested-follows.md (limited to 'doc/manual') diff --git a/doc/manual/rl-next/fix-nested-follows.md b/doc/manual/rl-next/fix-nested-follows.md new file mode 100644 index 000000000..d4a381ba4 --- /dev/null +++ b/doc/manual/rl-next/fix-nested-follows.md @@ -0,0 +1,21 @@ +--- +synopsis: Fix nested flake input `follows` +prs: 6621 +cls: 994 +--- + +Previously nested-input overrides were ignored; that is, the following did not +override anything, in spite of the `nix3-flake` manual documenting it working: + +``` +{ + inputs = { + foo.url = "github:bar/foo"; + foo.inputs.bar.inputs.nixpkgs = "nixpkgs"; + }; +} +``` + +This is useful to avoid the 1000 instances of nixpkgs problem without having +each flake in the dependency tree to expose all of its transitive dependencies +for modification. -- cgit v1.2.3