Files
nixpkgs/ci/eval/attrpaths.nix
Wolfgang Walther 5c22b88f2b ci/eval: remove unused checkMeta argument
This should always be set anyways.

(cherry picked from commit b627d181e9)
2025-09-03 16:28:30 +00:00

96 lines
2.7 KiB
Nix

# This expression will, as efficiently as possible, dump a
# *superset* of all attrpaths of derivations which might be
# part of a release on *any* platform.
#
# This expression runs single-threaded under all current Nix
# implementations, but much faster and with much less memory
# used than ./outpaths.nix itself.
#
# Once you have the list of attrnames you can split it up into
# $NUM_CORES batches and evaluate the outpaths separately for each
# batch, in parallel.
#
# To dump the attrnames:
#
# nix-instantiate --eval --strict --json ci/eval/attrpaths.nix -A names
#
{
lib ? import (path + "/lib"),
trace ? false,
path ? ./../..,
}:
let
# The intended semantics are that an attrpath rooted at pkgs is
# part of the (unfiltered) release jobset iff both of the following
# are true:
#
# 1. The attrpath leads to a value for which lib.isDerivation is true
#
# 2. Any proper prefix of the attrpath at which lib.isDerivation
# is true also has __recurseIntoDerivationForReleaseJobs=true.
#
# The second condition is unfortunately necessary because there are
# Hydra release jobnames which have proper prefixes which are
# attrnames of derivations (!). We should probably restructure
# the job tree so that this is not the case.
#
# TODO: Use mapAttrsToListRecursiveCond when this PR lands:
# https://github.com/NixOS/nixpkgs/pull/395160
justAttrNames =
path: value:
let
result =
if path == [ "AAAAAASomeThingsFailToEvaluate" ] || !(lib.isAttrs value) then
[ ]
else if
lib.isDerivation value
&&
# in some places we have *derivations* with jobsets as subattributes, ugh
!(value.__recurseIntoDerivationForReleaseJobs or false)
then
[ path ]
else
lib.pipe value [
(lib.mapAttrsToList (
name: value:
lib.addErrorContext "while evaluating package set attribute path '${
lib.showAttrPath (path ++ [ name ])
}'" (justAttrNames (path ++ [ name ]) value)
))
lib.concatLists
];
in
lib.traceIf trace "** ${lib.showAttrPath path}" result;
outpaths = import ./outpaths.nix {
inherit path;
attrNamesOnly = true;
};
paths = [
# I am not entirely sure why these three packages end up in
# the Hydra jobset. But they do, and they don't meet the
# criteria above, so at the moment they are special-cased.
[
"pkgsLLVM"
"stdenv"
]
[
"pkgsStatic"
"stdenv"
]
[
"pkgsMusl"
"stdenv"
]
]
++ justAttrNames [ ] outpaths;
names = map lib.showAttrPath paths;
in
{
inherit paths names;
}