1 # This file has been generated by Niv.
6 # The fetchers. fetch_<type> fetches specs of type <type>.
9 fetch_file = pkgs: spec:
10 if spec.builtin or true then
11 builtins_fetchurl { inherit (spec) url sha256; }
13 pkgs.fetchurl { inherit (spec) url sha256; };
15 fetch_tarball = pkgs: name: spec:
17 ok = str: ! builtins.isNull (builtins.match "[a-zA-Z0-9+-._?=]" str);
18 # sanitize the name, though nix will still fail if name starts with period
19 name' = stringAsChars (x: if ! ok x then "-" else x) "${name}-src";
21 if spec.builtin or true then
22 builtins_fetchTarball { name = name'; inherit (spec) url sha256; }
24 pkgs.fetchzip { name = name'; inherit (spec) url sha256; };
27 builtins.fetchGit { url = spec.repo; inherit (spec) rev ref; };
29 fetch_local = spec: spec.path;
31 fetch_builtin-tarball = name: throw
32 ''[${name}] The niv type "builtin-tarball" is deprecated. You should instead use `builtin = true`.
33 $ niv modify ${name} -a type=tarball -a builtin=true'';
35 fetch_builtin-url = name: throw
36 ''[${name}] The niv type "builtin-url" will soon be deprecated. You should instead use `builtin = true`.
37 $ niv modify ${name} -a type=file -a builtin=true'';
43 # The set of packages used when specs are fetched using non-builtins.
47 import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) {};
48 hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
49 hasThisAsNixpkgsPath = <nixpkgs> == ./.;
51 if builtins.hasAttr "nixpkgs" sources
53 else if hasNixpkgsPath && ! hasThisAsNixpkgsPath then
58 Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or
59 add a package called "nixpkgs" to your sources.json.
62 # The actual fetching function.
63 fetch = pkgs: name: spec:
65 if ! builtins.hasAttr "type" spec then
66 abort "ERROR: niv spec ${name} does not have a 'type' attribute"
67 else if spec.type == "file" then fetch_file pkgs spec
68 else if spec.type == "tarball" then fetch_tarball pkgs name spec
69 else if spec.type == "git" then fetch_git spec
70 else if spec.type == "local" then fetch_local spec
71 else if spec.type == "builtin-tarball" then fetch_builtin-tarball name
72 else if spec.type == "builtin-url" then fetch_builtin-url name
74 abort "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
76 # Ports of functions for older nix versions
78 # a Nix version of mapAttrs if the built-in doesn't exist
79 mapAttrs = builtins.mapAttrs or (
80 f: set: with builtins;
81 listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set))
84 # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
85 range = first: last: if first > last then [] else builtins.genList (n: first + n) (last - first + 1);
87 # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L257
88 stringToCharacters = s: map (p: builtins.substring p 1 s) (range 0 (builtins.stringLength s - 1));
90 # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L269
91 stringAsChars = f: s: concatStrings (map f (stringToCharacters s));
92 concatStrings = builtins.concatStringsSep "";
94 # fetchTarball version that is compatible between all the versions of Nix
95 builtins_fetchTarball = { url, name, sha256 }@attrs:
97 inherit (builtins) lessThan nixVersion fetchTarball;
99 if lessThan nixVersion "1.12" then
100 fetchTarball { inherit name url; }
104 # fetchurl version that is compatible between all the versions of Nix
105 builtins_fetchurl = { url, sha256 }@attrs:
107 inherit (builtins) lessThan nixVersion fetchurl;
109 if lessThan nixVersion "1.12" then
110 fetchurl { inherit url; }
114 # Create the final "sources" from the config
118 if builtins.hasAttr "outPath" spec
120 "The values in sources.json should not have an 'outPath' attribute"
122 spec // { outPath = fetch config.pkgs name spec; }
125 # The "config" used by the fetchers
127 { sourcesFile ? ./sources.json
128 , sources ? builtins.fromJSON (builtins.readFile sourcesFile)
129 , pkgs ? mkPkgs sources
131 # The sources, i.e. the attribute set of spec name to spec
134 # The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers
138 mkSources (mkConfig {}) // { __functor = _: settings: mkSources (mkConfig settings); }