This is a tracking issue to follow progress towards __structuredAttrs compatibility in Nixpkgs. This list is not exhaustive; please feel free to add or comment more issue or PRs you feel are related.

Core

Things relating to adding support for __structuredAttrs to setup hooks or tooling used for ecosystems.

Open

Issues

• substituteAll is a terrible function and we need to stop using it / fix it respectively #237216
• addAttrsToDerivation seems broken #306953
• _multioutPropagateDev(): can't set propagatedBuildOutputs with __structuredAttrs #323126
• stdenv.generic: Self rpath prefix cannot handle spaces in $PWD #415892
• stdenv: structuredAttrs breaks phases when nested lists are present in inputs #422989
• haskell/generic-builder: __structuredAttrs breaks configureFlags for extra-{include,lib,framework}-dirs #427273

PRs

• stdenv and base packages: fix with __structuredAttrs enabled #263773
• check-meta: warn about misinterpreted *Array variables #335110
• cmake: setup-hooks: take structural cmakeEntries #442017
• mkDerivation: make allowedReference/allowedRequisites nullable when __structuredAttrs is true #462141
• fetchurl, fetchgit: use __structuredAttrs = true and pass curlOptsList and sparseCheckout as lists #464475

TODO

• Make $stdenv/setup work with structuredAttrs in:
  

  nixpkgs/pkgs/development/web/nodejs/node-npm-build-npm-package-logic.patch

  Line 53 in d225878

  + const patchShebangs = () => spawn('bash', ['-c', 'source $stdenv/setup; patchShebangs node_modules'], { cwd: dir })

• Make $stdenv/setup work with structuredAttrs in:
  

  nixpkgs/pkgs/build-support/docker/default.nix

  Lines 1170 to 1171 in d225878

  	# TODO: https://github.com/NixOS/nix/blob/2.8.0/src/nix-build/nix-build.cc#L506
  	[ -e $stdenv/setup ] && source $stdenv/setup

• Migrate pytestFlagsArray to pytestFlags
• Make output of getAllOutputNames consistent with and without structuredAttrs. Related: arrayUtilities: init #385960 (comment) - careful about jdk{8,11,17,23,24}: always enable __structuredAttrs; cleanup #425773 (comment).

Done

Issues

Nix

• Document __structuredAttrs nix#7429

Nixpkgs

• cmakeFlags cannot parse spaces #114044
• runCommand fails when using __structuredAttrs #213641
• global use of stdenv adapter withCFlags is broken #225740
• makeSetupHook broken in __structuredAttrs __bootPackages  #240753
• cmake: the setup hook breaks with __structuredAttrs = true #289037
• .inputDerivation broken for __structuredAttrs derivations #321005
• vmTools.runInLinuxVM fails upon __structuredAttrs = true, complaining mkdir: missing operand #334705
• Build failure: jdk8 #425323

PRs

Nix

• Source complete env in nix-shell with __structuredAttrs = true; nix#4770

Nixpkgs

• WIP: enable __structuredAttrs in stdenv.mkDerivation #65686
• stdenv: enable __structuredAttrs #72074
• treewide: structured-attrs fixes #76674
• stdenv.mkDerivation: add support for env attrset #76732
• treewide: Fix types of stripDebugList attrs (and fix doc) #84551
• stdenv: support __structuredAttrs, opt-in per package #85042
• stdenv: support opt-in __structuredAttrs #175649
• stdenv: handle env gracefully #205944
• stdenv/setup.sh: Allow NIX_ATTRS_{JSON,SH}_FILE to be set correctly by Nix #214937
• inputDerivation: support structuredAttrs #215173
• treewide: move NIX_CFLAGS_COMPILE to the env attrset  #217206
• stdenv: run toString on lists in env to allow lists in env #217962
• buildLuaPackage: enable __structuredAttrs rocks #224553
• stdenvAdapters: fix preservation of env #225787
• stdenvAdapters: fix preservation of env.NIX_CFLAGS_COMPILE #225929
• makeSetupHook: unbreak structuredAttrsByDefault #240759
• structured attrs: prefer NIX_ATTRS_*_FILE over .attrs.* #257919
• lua: enable structuredAttrs for interpreters #264381
• auto-patchelf: add support for __structuredAttrs #272752
• cmake: add __structuredAttrs support to setup hooks #299622
• cargoBuildHook: Fix features with __structuredAttrs #302926
• buildDotnetModule: fix structured attributes support #313005
• treewide: support structuredAttrs in setup hooks #318614
• stdenv: concatTo: fallback for non-__structuredAttrs derivations #334973
• treewide: support structuredAttrs in setup hooks (part 2) #335666
• enable structuredAttrs for vimPlugins #336042
• treewide: handle *Phases variables __structuredAttrs-agnostically #339117
• treewide: support structuredAttrs in setup hooks (part 3) #340592
• auto-patchelf: refactor structuredAttrs support #340858
• rust: support structuredAttrs in setup hooks #340862
• buildPythonPackage, buildPythonApplication: support __structuredAttrs = true #347194
• python3Packages.*Hook: support __structuredAttrs = true (the easier ones) #351734
• treewide: handle *Phases variables __structuredAttrs-agnostically (round 2) #352709
• python3Packages: don't depend on setup hooks' bash eval #352976
• stdenv: fix hardeningEnable with __structuredAttrs = true; #353131
• stdenv: fix custom hardening settings when using __structuredAttrs = true; #353142
• runInLinuxVM: fix for structured attrs #354535
• expect-failure.sh: fix variabl existence check #355953
• treewide: improve prepending and appending derivation arguments in bash code #357052
• treewide: load structured attributes in all bash builders consistently #357053
• stdenv.mkDerivation: support output checks with and without structuredAttrs #357054
• runInLinuxVM: fix createEmptyImage/preVM case #358705
• buildGoModule: Use the env attribute to pass environment variables  #359641
• buildGoModule: access ldflags and tags __structuredAttrs-agnostically #360037
• runInLinuxVM: refactor structuredAttrs support, fix disko #360413
• stdenv: support multi-char separators in concatStringsSep #360466
• stdenv.mkDerivation: support structuredAttrs in inputDerivation #361233
• testers.testBuildFailure: fix structuredAttrs support #371337
• emacs: support and enable __structuredAttrs in elisp build helpers #387193
• stdenv: fix propagatedUserEnvPkgs when __structuredAttrs is true #388908
• stdenv: fix propagatedUserEnvPkgs when __structuredAttrs is true again #392928
• jdk8: disable structuredAttrs #425561
• jdk{8,11,17,23,24}: always enable __structuredAttrs; cleanup #425773

Misc

Things related to __structuredAttrs of some note, like discussions or work suspended until better support for __structuredAttrs is implemented.

Open

Issues

• build environment variables size reaching ARG_MAX limit on musl #217075

PRs

• writeClosure: add paths pre-instantiation filtering and sorting #300722
• cmake: setup-hook.sh: split out cmakeDefaultFlags #335682
• tests.stdenv: Easier to override stdenv #336837

Done

PRs

• [WIP/RFC] Make cmakeFlags more ergonomic #17886
• make-squashfs,make-iso9660-image: use __structuredAttrs #214373
• cudaPackages.setupCudaHook: init #233581
• stdenv: updateAutotoolsGnuConfigScriptsHook unconditionally #237968
• closureInfo: handle empty path set explicitly #265414
• factor-lang: Restructure package for easier extension #287852
• wrapFirefox: make makeWrapperArgs overridable #374270
• pytestCheckHook: support inclusion and exclusion of path globs, test items, keywords, and markers #386513
• treewide: migrate from pytestFlagsArray to enabledTestPaths (the trivial ones) #403112
• treewide: pytestFlagsArray -> pytestFlags and join flag and option argument #416213
• treewide: modernize Python package pytest flags and move away from pytestFlagsArray #424782