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b64a9bb1a9
This creates multiple package sets for different versions. The other versions don't yet work, but that will be fixed in subsequent PRs. Push versionData into package set so that it can be overridden Co-Authored-By: Audrey Dutcher <audrey@rhelmot.io> Co-Authored-By: Artemis Tosini <me@artem.ist>
196 lines
6.3 KiB
Nix
196 lines
6.3 KiB
Nix
# This expression will, as efficiently as possible, dump a
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# *superset* of all attrpaths of derivations which might be
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# part of a release on *any* platform.
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#
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# Both this expression and what ofborg uses (release-outpaths.nix)
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# are essentially single-threaded (under the current cppnix
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# implementation).
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#
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# This expression runs much, much, much faster and uses much, much
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# less memory than the ofborg script by skipping the
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# platform-relevance checks. The ofborg outpaths.nix script takes
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# half an hour on a 3ghz core and peaks at 60gbytes of memory; this
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# expression runs on the same machine in 44 seconds with peak memory
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# usage of 5gbytes.
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#
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# Once you have the list of attrnames you can split it up into
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# $NUM_CORES batches and run the platform checks separately for each
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# batch, in parallel.
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#
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# To dump the attrnames:
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#
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# nix-instantiate --eval --strict --json pkgs/top-level/release-attrpaths-superset.nix -A names
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#
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{ lib ? import (path + "/lib")
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, trace ? false
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, enableWarnings ? true
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, checkMeta ? true
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, path ? ./../..
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}:
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let
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# No release package attrpath may have any of these attrnames as
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# its initial component.
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#
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# If you can find a way to remove any of these entries without
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# causing CI to fail, please do so.
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#
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excluded-toplevel-attrs = {
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# spliced packagesets
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__splicedPackages = true;
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pkgsBuildBuild = true;
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pkgsBuildHost = true;
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pkgsBuildTarget = true;
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pkgsHostHost = true;
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pkgsHostTarget = true;
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pkgsTargetTarget = true;
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buildPackages = true;
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targetPackages = true;
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# cross packagesets
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pkgsLLVM = true;
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pkgsMusl = true;
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pkgsStatic = true;
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pkgsCross = true;
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pkgsi686Linux = true;
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pkgsLinux = true;
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pkgsExtraHardening = true;
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};
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# No release package attrname may have any of these at a component
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# anywhere in its attrpath. These are the names of gigantic
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# top-level attrsets that have leaked into so many sub-packagesets
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# that it's easier to simply exclude them entirely.
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#
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# If you can find a way to remove any of these entries without
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# causing CI to fail, please do so.
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#
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excluded-attrnames-at-any-depth = {
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lib = true;
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override = true;
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__functor = true;
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__functionArgs = true;
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newScope = true;
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scope = true;
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pkgs = true;
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buildHaskellPackages = true;
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buildPackages = true;
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buildFreebsd = true;
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generateOptparseApplicativeCompletions = true;
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callPackage = true;
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mkDerivation = true;
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overrideDerivation = true;
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overrideScope = true;
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overrideScope' = true;
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# Special case: lib/types.nix leaks into a lot of nixos-related
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# derivations, and does not eval deeply.
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type = true;
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};
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# __attrsFailEvaluation is a temporary workaround to get top-level
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# eval to succeed (under builtins.tryEval) for the entire
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# packageset, without deep invasve changes into individual
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# packages.
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#
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# Now that CI has been added, ensuring that top-level eval will
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# not be broken by any new commits, you should not add any new
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# occurrences of __attrsFailEvaluation, and should remove them
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# wherever you are able to (doing so will likely require deep
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# adjustments within packages). Once all of the uses of
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# __attrsFailEvaluation are removed, it will be deleted from the
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# routine below. In the meantime,
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#
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# The intended semantics are that an attrpath rooted at pkgs is
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# part of the (unfiltered) release jobset iff all of the following
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# are true:
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#
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# 1. The first component of the attrpath is not in
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# `excluded-toplevel-attrs`
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#
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# 2. No attrname in the attrpath belongs to the list of forbidden
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# attrnames `excluded-attrnames-at-any-depth`
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#
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# 3. The attrpath leads to a value for which lib.isDerivation is true
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#
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# 4. No proper prefix of the attrpath has __attrsFailEvaluation=true
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#
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# 5. Any proper prefix of the attrpath at which lib.isDerivation
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# is true also has __recurseIntoDerivationForReleaseJobs=true.
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#
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# The last condition is unfortunately necessary because there are
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# Hydra release jobnames which have proper prefixes which are
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# attrnames of derivations (!). We should probably restructure
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# the job tree so that this is not the case.
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#
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justAttrNames = path: value:
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let
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attempt =
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if lib.isDerivation value &&
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# in some places we have *derivations* with jobsets as subattributes, ugh
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!(value.__recurseIntoDerivationForReleaseJobs or false) then
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[ path ]
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# Even wackier case: we have meta.broken==true jobs with
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# !meta.broken jobs as subattributes with license=unfree, and
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# check-meta.nix won't throw an "unfree" failure because the
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# enclosing derivation is marked broken. Yeah. Bonkers.
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# We should just forbid jobsets enclosed by derivations.
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else if lib.isDerivation value &&
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!value.meta.available then []
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else if !(lib.isAttrs value) then []
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else if (value.__attrsFailEvaluation or false) then []
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else lib.pipe value [
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(builtins.mapAttrs
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(name: value:
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if excluded-attrnames-at-any-depth.${name} or false then [] else
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(justAttrNames (path ++ [name]) value)))
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builtins.attrValues
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builtins.concatLists
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];
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seq = builtins.deepSeq attempt attempt;
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tried = builtins.tryEval seq;
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result =
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if tried.success
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then tried.value
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else if enableWarnings && path != [ "AAAAAASomeThingsFailToEvaluate" ]
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then lib.warn "tryEval failed at: ${lib.concatStringsSep "." path}" []
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else [];
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in
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if !trace
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then result
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else lib.trace "** ${lib.concatStringsSep "." path}" result;
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unfiltered = import ./release-outpaths.nix {
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inherit checkMeta;
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attrNamesOnly = true;
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inherit path;
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};
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filtered = lib.pipe unfiltered [
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(pkgs: builtins.removeAttrs pkgs (builtins.attrNames excluded-toplevel-attrs))
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];
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paths =
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[
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# I am not entirely sure why these three packages end up in
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# the Hydra jobset. But they do, and they don't meet the
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# criteria above, so at the moment they are special-cased.
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[ "pkgsLLVM" "stdenv" ]
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[ "pkgsStatic" "stdenv" ]
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[ "pkgsMusl" "stdenv" ]
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] ++ justAttrNames [] filtered;
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names =
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map (path: (lib.concatStringsSep "." path)) paths;
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in
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{
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inherit paths names;
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}
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