oeiuwq.com
+4
-12
README.md
+4
-12
README.md
···
9
9
10
10
This repo contains several non-flakes examples (one per branch):
11
11
12
-
- [unflake](https://github.com/vic/dendritic-unflake/tree/main) **current**
12
+
- [unflake](https://github.com/vic/dendritic-unflake/tree/main)
13
13
- [npins](https://github.com/vic/dendritic-unflake/tree/npins)
14
14
- [builtins](https://github.com/vic/dendritic-unflake/tree/builtins)
15
15
- [froyo](https://github.com/vic/dendritic-unflake/tree/froyo)
16
-
- [falake](https://github.com/vic/dendritic-unflake/tree/falake)
16
+
- [falake](https://github.com/vic/dendritic-unflake/tree/falake) **current**
17
17
- [flake-parts](https://github.com/vic/dendritic-unflake/tree/flake-parts)
18
18
19
-
20
-
# Dendritic unflake
19
+
# Dendritic Falake
21
20
22
21
This repository serves as an example Dendritic Nix implementation **without** flakes nor flake-parts.
23
22
([discourse post](https://discourse.nixos.org/t/dendritic-unflake-example-dendritic-setup-without-flakes-nor-flake-parts/73069/5) and [context](https://github.com/mightyiam/dendritic/pull/15))
24
-
25
23
26
24
Entry point is [default.nix](default.nix), [modules/example.nix](modules/example.nix) defines a nixosConfiguration.
27
25
28
26
29
-
This example uses [unflake](https://discourse.nixos.org/t/unflake-flake-dependencies-for-non-flake-projects-and-a-way-to-stop-writing-follows/72611) to fetch dependencies and provide flake-like inputs.
27
+
This example uses [falake](https://codeberg.org/FrdrCkII/falake) top-level modules.
30
28
31
29
32
30
## Usage
33
-
34
-
Regenerate [unflake.nix](unflake.nix) whenever [inputs.nix](inputs.nix) change:
35
-
36
-
```console
37
-
nix-shell https://ln-s.sh/unflake -A unflake-shell --run unflake
38
-
```
39
31
40
32
Build `my-laptop` nixos config:
41
33
+9
-18
default.nix
+9
-18
default.nix
···
1
1
let
2
-
3
-
modules =
4
-
{ inputs, ... }:
5
-
{
6
-
imports = [ (inputs.import-tree ./modules) ];
7
-
};
8
-
9
-
outputs =
10
-
inputs:
11
-
(inputs.nixpkgs.lib.evalModules {
12
-
modules = [ modules ];
13
-
specialArgs = {
14
-
inherit inputs;
15
-
inherit (inputs) self;
16
-
};
17
-
}).config;
18
-
2
+
pins = import ./npins;
3
+
inherit (pins) nixpkgs falake;
4
+
pkgs = import nixpkgs { };
19
5
in
20
-
import ./unflake.nix outputs
6
+
(import falake).mkFalake pkgs.lib { inherit pins; } {
7
+
inherit nixpkgs;
8
+
imports = [
9
+
(import pins.import-tree ./modules)
10
+
];
11
+
}
-5
inputs.nix
-5
inputs.nix
+6
-6
modules/example.nix
+6
-6
modules/example.nix
···
1
-
{ lib, self, ... }:
1
+
{ pins, config, ... }:
2
2
{
3
-
modules.nixos.no-boot = {
3
+
flake.modules.nixos.no-boot = {
4
4
boot.loader.grub.enable = false;
5
5
fileSystems."/".device = "/dev/no-device";
6
6
};
7
7
8
-
modules.nixos.statics = {
8
+
flake.modules.nixos.statics = {
9
9
system.stateVersion = "25.11";
10
10
nixpkgs.hostPlatform = "x86_64-linux";
11
11
passthru = { };
12
12
};
13
13
14
-
modules.nixos.my-laptop.imports = with self.modules.nixos; [
14
+
flake.modules.nixos.my-laptop.imports = with config.flake.modules.nixos; [
15
15
statics
16
16
no-boot
17
17
];
18
18
19
-
nixosConfigurations.my-laptop = lib.nixosSystem {
20
-
modules = [ self.modules.nixos.my-laptop ];
19
+
flake.nixosConfigurations.my-laptop = import "${pins.nixpkgs}/nixos/lib/eval-config.nix" {
20
+
modules = [ config.flake.modules.nixos.my-laptop ];
21
21
};
22
22
}
+2
-6
modules/options/modules.nix
+2
-6
modules/options/modules.nix
···
1
-
{ lib, ... }:
1
+
{ pins, ... }:
2
2
{
3
-
options.modules = lib.mkOption {
4
-
description = "<class>.<aspect> modules. akin to flake-parts' flake.modules";
5
-
default = { };
6
-
type = lib.types.lazyAttrsOf (lib.types.lazyAttrsOf lib.types.deferredModule);
7
-
};
3
+
imports = [ (import pins.falake).flakeModules.modules ];
8
4
}
-8
modules/options/nixos-configurations.nix
-8
modules/options/nixos-configurations.nix
+146
npins/default.nix
+146
npins/default.nix
···
1
+
/*
2
+
This file is provided under the MIT licence:
3
+
4
+
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
5
+
6
+
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
7
+
8
+
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
9
+
*/
10
+
# Generated by npins. Do not modify; will be overwritten regularly
11
+
let
12
+
data = builtins.fromJSON (builtins.readFile ./sources.json);
13
+
version = data.version;
14
+
15
+
# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
16
+
range =
17
+
first: last: if first > last then [ ] else builtins.genList (n: first + n) (last - first + 1);
18
+
19
+
# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L257
20
+
stringToCharacters = s: map (p: builtins.substring p 1 s) (range 0 (builtins.stringLength s - 1));
21
+
22
+
# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L269
23
+
stringAsChars = f: s: concatStrings (map f (stringToCharacters s));
24
+
concatMapStrings = f: list: concatStrings (map f list);
25
+
concatStrings = builtins.concatStringsSep "";
26
+
27
+
# If the environment variable NPINS_OVERRIDE_${name} is set, then use
28
+
# the path directly as opposed to the fetched source.
29
+
# (Taken from Niv for compatibility)
30
+
mayOverride =
31
+
name: path:
32
+
let
33
+
envVarName = "NPINS_OVERRIDE_${saneName}";
34
+
saneName = stringAsChars (c: if (builtins.match "[a-zA-Z0-9]" c) == null then "_" else c) name;
35
+
ersatz = builtins.getEnv envVarName;
36
+
in
37
+
if ersatz == "" then
38
+
path
39
+
else
40
+
# this turns the string into an actual Nix path (for both absolute and
41
+
# relative paths)
42
+
builtins.trace "Overriding path of \"${name}\" with \"${ersatz}\" due to set \"${envVarName}\"" (
43
+
if builtins.substring 0 1 ersatz == "/" then
44
+
/. + ersatz
45
+
else
46
+
/. + builtins.getEnv "PWD" + "/${ersatz}"
47
+
);
48
+
49
+
mkSource =
50
+
name: spec:
51
+
assert spec ? type;
52
+
let
53
+
path =
54
+
if spec.type == "Git" then
55
+
mkGitSource spec
56
+
else if spec.type == "GitRelease" then
57
+
mkGitSource spec
58
+
else if spec.type == "PyPi" then
59
+
mkPyPiSource spec
60
+
else if spec.type == "Channel" then
61
+
mkChannelSource spec
62
+
else if spec.type == "Tarball" then
63
+
mkTarballSource spec
64
+
else
65
+
builtins.throw "Unknown source type ${spec.type}";
66
+
in
67
+
spec // { outPath = mayOverride name path; };
68
+
69
+
mkGitSource =
70
+
{
71
+
repository,
72
+
revision,
73
+
url ? null,
74
+
submodules,
75
+
hash,
76
+
branch ? null,
77
+
...
78
+
}:
79
+
assert repository ? type;
80
+
# At the moment, either it is a plain git repository (which has an url), or it is a GitHub/GitLab repository
81
+
# In the latter case, there we will always be an url to the tarball
82
+
if url != null && !submodules then
83
+
builtins.fetchTarball {
84
+
inherit url;
85
+
sha256 = hash; # FIXME: check nix version & use SRI hashes
86
+
}
87
+
else
88
+
let
89
+
url =
90
+
if repository.type == "Git" then
91
+
repository.url
92
+
else if repository.type == "GitHub" then
93
+
"https://github.com/${repository.owner}/${repository.repo}.git"
94
+
else if repository.type == "GitLab" then
95
+
"${repository.server}/${repository.repo_path}.git"
96
+
else
97
+
throw "Unrecognized repository type ${repository.type}";
98
+
urlToName =
99
+
url: rev:
100
+
let
101
+
matched = builtins.match "^.*/([^/]*)(\\.git)?$" url;
102
+
103
+
short = builtins.substring 0 7 rev;
104
+
105
+
appendShort = if (builtins.match "[a-f0-9]*" rev) != null then "-${short}" else "";
106
+
in
107
+
"${if matched == null then "source" else builtins.head matched}${appendShort}";
108
+
name = urlToName url revision;
109
+
in
110
+
builtins.fetchGit {
111
+
rev = revision;
112
+
inherit name;
113
+
# hash = hash;
114
+
inherit url submodules;
115
+
};
116
+
117
+
mkPyPiSource =
118
+
{ url, hash, ... }:
119
+
builtins.fetchurl {
120
+
inherit url;
121
+
sha256 = hash;
122
+
};
123
+
124
+
mkChannelSource =
125
+
{ url, hash, ... }:
126
+
builtins.fetchTarball {
127
+
inherit url;
128
+
sha256 = hash;
129
+
};
130
+
131
+
mkTarballSource =
132
+
{
133
+
url,
134
+
locked_url ? url,
135
+
hash,
136
+
...
137
+
}:
138
+
builtins.fetchTarball {
139
+
url = locked_url;
140
+
sha256 = hash;
141
+
};
142
+
in
143
+
if version == 5 then
144
+
builtins.mapAttrs mkSource data.pins
145
+
else
146
+
throw "Unsupported format version ${toString version} in sources.json. Try running `npins upgrade`"
+38
npins/sources.json
+38
npins/sources.json
···
1
+
{
2
+
"pins": {
3
+
"falake": {
4
+
"type": "Git",
5
+
"repository": {
6
+
"type": "Forgejo",
7
+
"server": "https://codeberg.org/",
8
+
"owner": "FrdrCkII",
9
+
"repo": "falake"
10
+
},
11
+
"branch": "main",
12
+
"submodules": false,
13
+
"revision": "70761ee62e87537ad428903186146a8a773b7701",
14
+
"url": "https://codeberg.org/FrdrCkII/falake/archive/70761ee62e87537ad428903186146a8a773b7701.tar.gz",
15
+
"hash": "0yp7arsr15zvjhj63awmcx5n677kdxllmrwrx606rx505p99xzwa"
16
+
},
17
+
"import-tree": {
18
+
"type": "Git",
19
+
"repository": {
20
+
"type": "GitHub",
21
+
"owner": "vic",
22
+
"repo": "import-tree"
23
+
},
24
+
"branch": "main",
25
+
"submodules": false,
26
+
"revision": "3c23749d8013ec6daa1d7255057590e9ca726646",
27
+
"url": "https://github.com/vic/import-tree/archive/3c23749d8013ec6daa1d7255057590e9ca726646.tar.gz",
28
+
"hash": "0p9wqkk9280ay18b3cpzwbyaq9gwvglb22yki0q03p4vb1n0mxk6"
29
+
},
30
+
"nixpkgs": {
31
+
"type": "Channel",
32
+
"name": "nixpkgs-unstable",
33
+
"url": "https://releases.nixos.org/nixpkgs/nixpkgs-26.05pre909321.677fbe97984e/nixexprs.tar.xz",
34
+
"hash": "0i4jyr0xv8i90gxil1s36yqas4qfnp52bwr02fdx90chp31kchzv"
35
+
}
36
+
},
37
+
"version": 5
38
+
}
-41
unflake.nix
-41
unflake.nix
···
1
-
let
2
-
deps = rec {
3
-
unflake_github_nixos_nixpkgs_ref_nixpkgs-unstable = builtins.fetchTree {
4
-
type = "github";
5
-
owner = "nixos";
6
-
repo = "nixpkgs";
7
-
rev = "677fbe97984e7af3175b6c121f3c39ee5c8d62c9";
8
-
narHash = "sha256-g2a4MhRKu4ymR4xwo+I+auTknXt/+j37Lnf0Mvfl1rE=";
9
-
};
10
-
unflake_github_vic_import-tree = builtins.fetchTree {
11
-
type = "github";
12
-
owner = "vic";
13
-
repo = "import-tree";
14
-
rev = "3c23749d8013ec6daa1d7255057590e9ca726646";
15
-
narHash = "sha256-ZvYKbFib3AEwiNMLsejb/CWs/OL/srFQ8AogkebEPF0=";
16
-
};
17
-
};
18
-
universe = rec {
19
-
unflake_github_nixos_nixpkgs_ref_nixpkgs-unstable = ((import "${deps.unflake_github_nixos_nixpkgs_ref_nixpkgs-unstable.outPath}/flake.nix").outputs {
20
-
self = unflake_github_nixos_nixpkgs_ref_nixpkgs-unstable;
21
-
}) // deps.unflake_github_nixos_nixpkgs_ref_nixpkgs-unstable // {
22
-
_flake = true;
23
-
outPath = "${deps.unflake_github_nixos_nixpkgs_ref_nixpkgs-unstable.outPath}";
24
-
sourceInfo = deps.unflake_github_nixos_nixpkgs_ref_nixpkgs-unstable;
25
-
};
26
-
unflake_github_vic_import-tree = ((import "${deps.unflake_github_vic_import-tree.outPath}/flake.nix").outputs {
27
-
self = unflake_github_vic_import-tree;
28
-
}) // deps.unflake_github_vic_import-tree // {
29
-
_flake = true;
30
-
outPath = "${deps.unflake_github_vic_import-tree.outPath}";
31
-
sourceInfo = deps.unflake_github_vic_import-tree;
32
-
};
33
-
};
34
-
inputs = {
35
-
import-tree = universe.unflake_github_vic_import-tree;
36
-
nixpkgs = universe.unflake_github_nixos_nixpkgs_ref_nixpkgs-unstable;
37
-
self = throw "to use inputs.self, write `import ./unflake.nix (inputs: ...)`";
38
-
withInputs = outputs: let self = outputs (inputs // { inherit self; }); in self;
39
-
__functor = self: self.withInputs;
40
-
};
41
-
in inputs
+39
with-inputs.nix
+39
with-inputs.nix
···
1
+
let
2
+
sources = import ./npins;
3
+
selfInputs = builtins.mapAttrs (name: value: mkInputs name value) sources;
4
+
# from Nixlock: https://codeberg.org/FrdrCkII/nixlock/src/branch/main/default.nix
5
+
mkInputs =
6
+
name: sourceInfo:
7
+
let
8
+
flakePath = sourceInfo.outPath + "/flake.nix";
9
+
isFlake = sources.${name}.flake or true;
10
+
in
11
+
if isFlake && builtins.pathExists flakePath then
12
+
let
13
+
flake = import (sourceInfo.outPath + "/flake.nix");
14
+
inputs = builtins.mapAttrs (name: value: selfInputs.${name}) (flake.inputs or { });
15
+
outputs = flake.outputs (inputs // { inherit self; });
16
+
self =
17
+
sourceInfo
18
+
// outputs
19
+
// {
20
+
_type = "flake";
21
+
inherit inputs sourceInfo;
22
+
};
23
+
in
24
+
self
25
+
else
26
+
sourceInfo
27
+
// {
28
+
inherit sourceInfo;
29
+
};
30
+
in
31
+
selfInputs
32
+
// {
33
+
__functor =
34
+
selfInputs: outputs:
35
+
let
36
+
self = outputs (selfInputs // { inherit self; });
37
+
in
38
+
self;
39
+
}