blob: d8b9b08b6979a3323c474f8993685ade41d26804 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
# This file sets up the top-level package set by traversing the package tree
# (see //nix/readTree for details) and constructing a matching attribute set
# tree.
{ nixpkgsBisectPath ? null, ... }@args:
let
inherit (builtins)
attrValues
concatMap
filter
;
# This definition of fix is identical to <nixpkgs>.lib.fix, but the global
# package set is not available here.
fix = f: let x = f x; in x;
readTree' = import ./nix/readTree {};
# To determine build targets, we walk through the depot tree and
# fetch attributes that were imported by readTree and are buildable.
#
# Any build target that contains `meta.ci = false` will be skipped.
# Is this tree node eligible for build inclusion?
eligible = node: (node ? outPath) && (node.meta.ci or true);
# Walk the tree starting with 'node', recursively extending the list
# of build targets with anything that looks buildable.
#
# Any tree node can specify logical targets by exporting a
# 'meta.targets' attribute containing a list of keys in itself. This
# enables target specifications that do not exist on disk directly.
gather = node:
if node ? __readTree then
# Include the node itself if it is eligible.
(if eligible node then [ node ] else [])
# Include eligible children of the node
++ concatMap gather (attrValues node)
# Include specified sub-targets of the node
++ filter eligible (map
(k: (node."${k}" or {}) // {
# Keep the same tree location, but explicitly mark this
# node as a subtarget.
__readTree = node.__readTree;
__subtarget = k;
})
(node.meta.targets or []))
else [];
in fix(self: (readTree' {
depot = self;
# Pass third_party as 'pkgs' (for compatibility with external
# imports for certain subdirectories)
pkgs = self.third_party.nixpkgs;
# Expose lib attribute to packages.
lib = self.third_party.nixpkgs.lib;
# Pass arguments passed to the entire depot through, for packages
# that would like to add functionality based on this.
#
# Note that it is intended for exceptional circumstance, such as
# debugging by bisecting nixpkgs.
externalArgs = args;
} ./.) // {
# Make the path to the depot available for things that might need it
# (e.g. NixOS module inclusions)
path = ./.;
# List of all buildable targets, for CI purposes.
#
# Note: To prevent infinite recursion, this *must* be a nested
# attribute set (which does not have a __readTree attribute).
ci.targets = gather (self // {
# remove the pipelines themselves from the set over which to
# generate pipelines because that also leads to infinite
# recursion.
ops = self.ops // { pipelines = null; };
# remove nixpkgs from the set, for obvious reasons.
third_party = self.third_party // { nixpkgs = null; };
});
# Derivation that gcroots all depot targets.
ci.gcroot = self.third_party.nixpkgs.symlinkJoin {
name = "depot-gcroot";
paths = self.ci.targets;
};
})
|
