about summary refs log tree commit diff
path: root/nixpkgs/pkgs/development/julia-modules/package-closure.nix
blob: d1138394e9936050e9182dc64cca6752f9284b90 (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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
{ lib
, julia
, python3
, runCommand

, augmentedRegistry
, packageNames
, packageOverrides
, packageImplications
}:

let
  # The specific package resolution code depends on the Julia version
  # These are pretty similar and could be combined to reduce duplication
  resolveCode = if lib.versionOlder julia.version "1.7" then resolveCode1_6 else resolveCode1_8;

  resolveCode1_6 = ''
    import Pkg.API: check_package_name
    import Pkg.Types: Context!, PRESERVE_NONE, manifest_info, project_deps_resolve!, registry_resolve!, stdlib_resolve!, ensure_resolved
    import Pkg.Operations: _resolve, assert_can_add, is_dep, update_package_add

    foreach(pkg -> check_package_name(pkg.name, :add), pkgs)
    pkgs = deepcopy(pkgs)  # deepcopy for avoid mutating PackageSpec members
    Context!(ctx)

    project_deps_resolve!(ctx, pkgs)
    registry_resolve!(ctx, pkgs)
    stdlib_resolve!(pkgs)
    ensure_resolved(ctx, pkgs, registry=true)

    assert_can_add(ctx, pkgs)

    for (i, pkg) in pairs(pkgs)
        entry = manifest_info(ctx, pkg.uuid)
        pkgs[i] = update_package_add(ctx, pkg, entry, is_dep(ctx, pkg))
    end

    foreach(pkg -> ctx.env.project.deps[pkg.name] = pkg.uuid, pkgs)

    pkgs, deps_map = _resolve(ctx, pkgs, PRESERVE_NONE)
'';

  resolveCode1_8 = ''
    import Pkg.API: handle_package_input!
    import Pkg.Types: PRESERVE_NONE, project_deps_resolve!, registry_resolve!, stdlib_resolve!, ensure_resolved
    import Pkg.Operations: _resolve, assert_can_add, update_package_add

    foreach(handle_package_input!, pkgs)

    # The handle_package_input! call above clears pkg.path, so we have to apply package overrides after
    overrides = Dict{String, String}(${builtins.concatStringsSep ", " (lib.mapAttrsToList (name: path: ''"${name}" => "${path}"'') packageOverrides)})
    println("Package overrides: ")
    println(overrides)
    for pkg in pkgs
      if pkg.name in keys(overrides)
        pkg.path = overrides[pkg.name]
      end
    end

    project_deps_resolve!(ctx.env, pkgs)
    registry_resolve!(ctx.registries, pkgs)
    stdlib_resolve!(pkgs)
    ensure_resolved(ctx, ctx.env.manifest, pkgs, registry=true)

    assert_can_add(ctx, pkgs)

    for (i, pkg) in pairs(pkgs)
        entry = Pkg.Types.manifest_info(ctx.env.manifest, pkg.uuid)
        is_dep = any(uuid -> uuid == pkg.uuid, [uuid for (name, uuid) in ctx.env.project.deps])
        pkgs[i] = update_package_add(ctx, pkg, entry, is_dep)
    end

    foreach(pkg -> ctx.env.project.deps[pkg.name] = pkg.uuid, pkgs)

    # Save the original pkgs for later. We might need to augment it with the weak dependencies
    orig_pkgs = pkgs

    pkgs, deps_map = _resolve(ctx.io, ctx.env, ctx.registries, pkgs, PRESERVE_NONE, ctx.julia_version)

    if VERSION >= VersionNumber("1.9")
        while true
            # Check for weak dependencies, which appear on the RHS of the deps_map but not in pkgs.
            # Build up weak_name_to_uuid
            uuid_to_name = Dict()
            for pkg in pkgs
                uuid_to_name[pkg.uuid] = pkg.name
            end
            weak_name_to_uuid = Dict()
            for (uuid, deps) in pairs(deps_map)
                for (dep_name, dep_uuid) in pairs(deps)
                    if !haskey(uuid_to_name, dep_uuid)
                        weak_name_to_uuid[dep_name] = dep_uuid
                    end
                end
            end

            if isempty(weak_name_to_uuid)
                break
            end

            # We have nontrivial weak dependencies, so add each one to the initial pkgs and then re-run _resolve
            println("Found weak dependencies: $(keys(weak_name_to_uuid))")

            orig_uuids = Set([pkg.uuid for pkg in orig_pkgs])

            for (name, uuid) in pairs(weak_name_to_uuid)
                if uuid in orig_uuids
                    continue
                end

                pkg = PackageSpec(name, uuid)

                push!(orig_uuids, uuid)
                push!(orig_pkgs, pkg)
                ctx.env.project.deps[name] = uuid
                entry = Pkg.Types.manifest_info(ctx.env.manifest, uuid)
                orig_pkgs[length(orig_pkgs)] = update_package_add(ctx, pkg, entry, false)
            end

            global pkgs, deps_map = _resolve(ctx.io, ctx.env, ctx.registries, orig_pkgs, PRESERVE_NONE, ctx.julia_version)
        end
    end
  '';

  juliaExpression = packageNames: ''
    import Pkg
    Pkg.Registry.add(Pkg.RegistrySpec(path="${augmentedRegistry}"))

    import Pkg.Types: Context, PackageSpec

    input = ${lib.generators.toJSON {} packageNames}

    if isfile("extra_package_names.txt")
      append!(input, readlines("extra_package_names.txt"))
    end

    input = unique(input)

    println("Resolving packages: " * join(input, " "))

    pkgs = [PackageSpec(pkg) for pkg in input]

    ctx = Context()

    ${resolveCode}

    open(ENV["out"], "w") do io
      for spec in pkgs
        println(io, "- name: " * spec.name)
        println(io, "  uuid: " * string(spec.uuid))
        println(io, "  version: " * string(spec.version))
        if endswith(spec.name, "_jll") && haskey(deps_map, spec.uuid)
          println(io, "  depends_on: ")
          for (dep_name, dep_uuid) in pairs(deps_map[spec.uuid])
            println(io, "    \"$(dep_name)\": \"$(dep_uuid)\"")
          end
        end
      end
    end
  '';
in

runCommand "julia-package-closure.yml" { buildInputs = [julia (python3.withPackages (ps: with ps; [pyyaml]))]; } ''
  mkdir home
  export HOME=$(pwd)/home

  echo "Resolving Julia packages with the following inputs"
  echo "Julia: ${julia}"
  echo "Registry: ${augmentedRegistry}"

  # Prevent a warning where Julia tries to download package server info
  export JULIA_PKG_SERVER=""

  julia -e '${juliaExpression packageNames}';

  # See if we need to add any extra package names based on the closure
  # and the packageImplications
  python ${./python}/find_package_implications.py "$out" '${lib.generators.toJSON {} packageImplications}' extra_package_names.txt

  if [ -f extra_package_names.txt ]; then
    echo "Re-resolving with additional package names"
    julia -e '${juliaExpression packageNames}';
  fi
''