forked from
tokono.ma/diffuse
A music player that connects to your cloud/distributed storage.
Setup Nix environment
+193
-15
+1
.envrc
+1
.envrc
···
1
+
eval "$(lorri direnv)"
+3
-13
README.md
+3
-13
README.md
···
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### Building it yourself
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-
For version numbers, see `.tool-versions` and `stack.yaml`.
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All of these, except the last one, can be install using [homebrew](https://brew.sh/).
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-
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- [Elm](https://elm-lang.org/) programming language
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- [Haskell](https://docs.haskellstack.org/en/stable/README/) programming language
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- [Node.js](https://nodejs.org/) programming language with the [Yarn](https://yarnpkg.com/) package manager
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- [Just](https://github.com/casey/just) command runner (improved `make`)
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- [Devd](https://github.com/cortesi/devd) web server for development (optional)
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- [Elm Format](https://github.com/avh4/elm-format) elm code formatter (optional)
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- [Watchexec](https://github.com/watchexec/watchexec) watching for file changes (optional)
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- [Elm Proofread](https://github.com/icidasset/elm-proofread) documentation tests (optional)
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This project uses [Nix](https://nixos.org/features.html) to manage the project's environment. If you'd like to build this project without Nix, check out the dependencies in the `shell.nix` file (most are available through Homebrew as well).
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```shell
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# 🍱
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# 1. Install programming languages:
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# Elm 0.19.1 & Haskell (Stack), see links above
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# 1. Setup Nix environment
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# https://nixos.org/download.html
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# 2. Install dependencies
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yarn install
+26
nix/sources.json
+26
nix/sources.json
···
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+
{
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+
"niv": {
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"branch": "master",
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"description": "Easy dependency management for Nix projects",
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"homepage": "https://github.com/nmattia/niv",
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"owner": "nmattia",
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"repo": "niv",
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"rev": "ab9cc41caf44d1f1d465d8028e4bc0096fd73238",
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"sha256": "17k52n8zwp832cqifsc4458mhy4044wmk22f807171hf6p7l4xvr",
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"type": "tarball",
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"url": "https://github.com/nmattia/niv/archive/ab9cc41caf44d1f1d465d8028e4bc0096fd73238.tar.gz",
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"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
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},
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"nixpkgs": {
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"branch": "nixpkgs-unstable",
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"description": "Nix Packages collection",
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"homepage": null,
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"owner": "NixOS",
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"repo": "nixpkgs",
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"rev": "5ad1cdafe15d4ea79ae6abcddc360dd2de35b44e",
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"sha256": "1nn602v3ssj79rxdfl3ical10c1d632vji9nv2h0dqslmycg4aws",
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"type": "tarball",
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"url": "https://github.com/NixOS/nixpkgs/archive/5ad1cdafe15d4ea79ae6abcddc360dd2de35b44e.tar.gz",
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"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
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}
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}
+138
nix/sources.nix
+138
nix/sources.nix
···
1
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# This file has been generated by Niv.
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let
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#
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# The fetchers. fetch_<type> fetches specs of type <type>.
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#
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+
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fetch_file = pkgs: spec:
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if spec.builtin or true then
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builtins_fetchurl { inherit (spec) url sha256; }
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else
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pkgs.fetchurl { inherit (spec) url sha256; };
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+
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fetch_tarball = pkgs: name: spec:
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let
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ok = str: ! builtins.isNull (builtins.match "[a-zA-Z0-9+-._?=]" str);
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# sanitize the name, though nix will still fail if name starts with period
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name' = stringAsChars (x: if ! ok x then "-" else x) "${name}-src";
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in
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if spec.builtin or true then
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builtins_fetchTarball { name = name'; inherit (spec) url sha256; }
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else
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pkgs.fetchzip { name = name'; inherit (spec) url sha256; };
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+
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fetch_git = spec:
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builtins.fetchGit { url = spec.repo; inherit (spec) rev ref; };
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+
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fetch_local = spec: spec.path;
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+
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fetch_builtin-tarball = name: throw
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''[${name}] The niv type "builtin-tarball" is deprecated. You should instead use `builtin = true`.
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$ niv modify ${name} -a type=tarball -a builtin=true'';
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+
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fetch_builtin-url = name: throw
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''[${name}] The niv type "builtin-url" will soon be deprecated. You should instead use `builtin = true`.
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$ niv modify ${name} -a type=file -a builtin=true'';
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#
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# Various helpers
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#
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+
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# The set of packages used when specs are fetched using non-builtins.
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mkPkgs = sources:
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let
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sourcesNixpkgs =
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import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) {};
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hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
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hasThisAsNixpkgsPath = <nixpkgs> == ./.;
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in
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if builtins.hasAttr "nixpkgs" sources
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then sourcesNixpkgs
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else if hasNixpkgsPath && ! hasThisAsNixpkgsPath then
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import <nixpkgs> {}
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else
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abort
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''
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Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or
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add a package called "nixpkgs" to your sources.json.
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'';
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+
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# The actual fetching function.
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fetch = pkgs: name: spec:
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+
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if ! builtins.hasAttr "type" spec then
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abort "ERROR: niv spec ${name} does not have a 'type' attribute"
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else if spec.type == "file" then fetch_file pkgs spec
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else if spec.type == "tarball" then fetch_tarball pkgs name spec
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else if spec.type == "git" then fetch_git spec
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else if spec.type == "local" then fetch_local spec
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else if spec.type == "builtin-tarball" then fetch_builtin-tarball name
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else if spec.type == "builtin-url" then fetch_builtin-url name
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else
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abort "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
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+
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# Ports of functions for older nix versions
77
+
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# a Nix version of mapAttrs if the built-in doesn't exist
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mapAttrs = builtins.mapAttrs or (
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f: set: with builtins;
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listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set))
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);
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+
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# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
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range = first: last: if first > last then [] else builtins.genList (n: first + n) (last - first + 1);
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+
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# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L257
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stringToCharacters = s: map (p: builtins.substring p 1 s) (range 0 (builtins.stringLength s - 1));
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+
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# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L269
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stringAsChars = f: s: concatStrings (map f (stringToCharacters s));
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concatStrings = builtins.concatStringsSep "";
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+
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# fetchTarball version that is compatible between all the versions of Nix
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builtins_fetchTarball = { url, name, sha256 }@attrs:
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let
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inherit (builtins) lessThan nixVersion fetchTarball;
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+
in
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if lessThan nixVersion "1.12" then
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fetchTarball { inherit name url; }
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+
else
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fetchTarball attrs;
103
+
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# fetchurl version that is compatible between all the versions of Nix
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+
builtins_fetchurl = { url, sha256 }@attrs:
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let
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inherit (builtins) lessThan nixVersion fetchurl;
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+
in
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+
if lessThan nixVersion "1.12" then
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fetchurl { inherit url; }
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+
else
112
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fetchurl attrs;
113
+
114
+
# Create the final "sources" from the config
115
+
mkSources = config:
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mapAttrs (
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name: spec:
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+
if builtins.hasAttr "outPath" spec
119
+
then abort
120
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"The values in sources.json should not have an 'outPath' attribute"
121
+
else
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spec // { outPath = fetch config.pkgs name spec; }
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+
) config.sources;
124
+
125
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# The "config" used by the fetchers
126
+
mkConfig =
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{ sourcesFile ? ./sources.json
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+
, sources ? builtins.fromJSON (builtins.readFile sourcesFile)
129
+
, pkgs ? mkPkgs sources
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+
}: rec {
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# The sources, i.e. the attribute set of spec name to spec
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+
inherit sources;
133
+
134
+
# The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers
135
+
inherit pkgs;
136
+
};
137
+
in
138
+
mkSources (mkConfig {}) // { __functor = _: settings: mkSources (mkConfig settings); }
+25
shell.nix
+25
shell.nix
···
1
+
let
2
+
3
+
sources = import ./nix/sources.nix;
4
+
pkgs = import sources.nixpkgs {};
5
+
6
+
in
7
+
8
+
pkgs.mkShell {
9
+
buildInputs = [
10
+
11
+
# Dev Tools
12
+
pkgs.curl
13
+
pkgs.devd
14
+
pkgs.just
15
+
pkgs.watchexec
16
+
17
+
# Language Specific
18
+
pkgs.elmPackages.elm
19
+
pkgs.elmPackages.elm-format
20
+
pkgs.haskellPackages.stack
21
+
pkgs.nodejs-14_x
22
+
pkgs.yarn
23
+
24
+
];
25
+
}