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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,67 +1,138 @@ | ||
| # This file has been generated by Niv. | ||
|
|
||
| # A record, from name to path, of the third-party packages | ||
| with rec | ||
| { | ||
| pkgs = | ||
| let | ||
|
|
||
| # | ||
| # The fetchers. fetch_<type> fetches specs of type <type>. | ||
| # | ||
|
|
||
| fetch_file = pkgs: spec: | ||
| if spec.builtin or true then | ||
| builtins_fetchurl { inherit (spec) url sha256; } | ||
| else | ||
| pkgs.fetchurl { inherit (spec) url sha256; }; | ||
|
|
||
| fetch_tarball = pkgs: spec: | ||
| if spec.builtin or true then | ||
| builtins_fetchTarball { inherit (spec) url sha256; } | ||
| else | ||
| pkgs.fetchzip { inherit (spec) url sha256; }; | ||
|
|
||
| fetch_git = spec: | ||
| builtins.fetchGit { url = spec.repo; inherit (spec) rev ref; }; | ||
|
|
||
| fetch_builtin-tarball = spec: | ||
| builtins.trace | ||
| '' | ||
| WARNING: | ||
| The niv type "builtin-tarball" will soon be deprecated. You should | ||
| instead use `builtin = true`. | ||
| $ niv modify <package> -a type=tarball -a builtin=true | ||
| '' | ||
| builtins_fetchTarball { inherit (spec) url sha256; }; | ||
|
|
||
| fetch_builtin-url = spec: | ||
| builtins.trace | ||
| '' | ||
| WARNING: | ||
| The niv type "builtin-url" will soon be deprecated. You should | ||
| instead use `builtin = true`. | ||
| $ niv modify <package> -a type=file -a builtin=true | ||
| '' | ||
| (builtins_fetchurl { inherit (spec) url sha256; }); | ||
|
|
||
| # | ||
| # Various helpers | ||
| # | ||
|
|
||
| # The set of packages used when specs are fetched using non-builtins. | ||
| mkPkgs = sources: | ||
| if hasNixpkgsPath | ||
| then | ||
| if hasThisAsNixpkgsPath | ||
| then import (builtins_fetchTarball { inherit (sources_nixpkgs) url sha256; }) {} | ||
| else import <nixpkgs> {} | ||
| if hasThisAsNixpkgsPath | ||
| then import (builtins_fetchTarball { inherit (mkNixpkgs sources) url sha256; }) {} | ||
| else import <nixpkgs> {} | ||
| else | ||
| import (builtins_fetchTarball { inherit (sources_nixpkgs) url sha256; }) {}; | ||
| import (builtins_fetchTarball { inherit (mkNixpkgs sources) url sha256; }) {}; | ||
|
|
||
| sources_nixpkgs = | ||
| mkNixpkgs = sources: | ||
| if builtins.hasAttr "nixpkgs" sources | ||
| then sources.nixpkgs | ||
| else abort | ||
| '' | ||
| '' | ||
| Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or | ||
| add a package called "nixpkgs" to your sources.json. | ||
| ''; | ||
|
|
||
| builtins_fetchTarball = | ||
| # fetchTarball version that is compatible between all the versions of | ||
| # Nix | ||
| { url, sha256 }@attrs: | ||
| let | ||
| inherit (builtins) lessThan nixVersion fetchTarball; | ||
| in | ||
| if lessThan nixVersion "1.12" then | ||
| fetchTarball { inherit url; } | ||
| else | ||
| fetchTarball attrs; | ||
| ''; | ||
|
|
||
| hasNixpkgsPath = (builtins.tryEval <nixpkgs>).success; | ||
| hasThisAsNixpkgsPath = | ||
| (builtins.tryEval <nixpkgs>).success && <nixpkgs> == ./.; | ||
|
|
||
| sources = builtins.fromJSON (builtins.readFile ./sources.json); | ||
| # The actual fetching function. | ||
| fetch = pkgs: name: spec: | ||
|
|
||
| if ! builtins.hasAttr "type" spec then | ||
| abort "ERROR: niv spec ${name} does not have a 'type' attribute" | ||
| else if spec.type == "file" then fetch_file pkgs spec | ||
| else if spec.type == "tarball" then fetch_tarball pkgs spec | ||
| else if spec.type == "git" then fetch_git spec | ||
| else if spec.type == "builtin-tarball" then fetch_builtin-tarball spec | ||
| else if spec.type == "builtin-url" then fetch_builtin-url spec | ||
| else | ||
| abort "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}"; | ||
|
|
||
| # Ports of functions for older nix versions | ||
|
|
||
| # a Nix version of mapAttrs if the built-in doesn't exist | ||
| mapAttrs = builtins.mapAttrs or ( | ||
| f: set: with builtins; | ||
| listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set)) | ||
| ); | ||
|
|
||
| mapAttrs = builtins.mapAttrs or | ||
| (f: set: with builtins; | ||
| listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set))); | ||
| # fetchTarball version that is compatible between all the versions of Nix | ||
| builtins_fetchTarball = { url, sha256 }@attrs: | ||
| let | ||
| inherit (builtins) lessThan nixVersion fetchTarball; | ||
| in | ||
| if lessThan nixVersion "1.12" then | ||
| fetchTarball { inherit url; } | ||
| else | ||
| fetchTarball attrs; | ||
|
|
||
| getFetcher = spec: | ||
| let fetcherName = | ||
| if builtins.hasAttr "type" spec | ||
| then builtins.getAttr "type" spec | ||
| else "tarball"; | ||
| in builtins.getAttr fetcherName { | ||
| "tarball" = pkgs.fetchzip; | ||
| "file" = pkgs.fetchurl; | ||
| # fetchurl version that is compatible between all the versions of Nix | ||
| builtins_fetchurl = { url, sha256 }@attrs: | ||
| let | ||
| inherit (builtins) lessThan nixVersion fetchurl; | ||
| in | ||
| if lessThan nixVersion "1.12" then | ||
| fetchurl { inherit url; } | ||
| else | ||
| fetchurl attrs; | ||
|
|
||
| # Create the final "sources" from the config | ||
| mkSources = config: | ||
| mapAttrs ( | ||
| name: spec: | ||
| if builtins.hasAttr "outPath" spec | ||
| then abort | ||
| "The values in sources.json should not have an 'outPath' attribute" | ||
| else | ||
| spec // { outPath = fetch config.pkgs name spec; } | ||
| ) config.sources; | ||
|
|
||
| # The "config" used by the fetchers | ||
| mkConfig = | ||
| { sourcesFile ? ./sources.json | ||
| , sources ? builtins.fromJSON (builtins.readFile sourcesFile) | ||
| , pkgs ? mkPkgs sources | ||
| }: rec { | ||
| # The sources, i.e. the attribute set of spec name to spec | ||
| inherit sources; | ||
|
|
||
| # The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers | ||
| inherit pkgs; | ||
| }; | ||
| }; | ||
| # NOTE: spec must _not_ have an "outPath" attribute | ||
| mapAttrs (_: spec: | ||
| if builtins.hasAttr "outPath" spec | ||
| then abort | ||
| "The values in sources.json should not have an 'outPath' attribute" | ||
| else | ||
| if builtins.hasAttr "url" spec && builtins.hasAttr "sha256" spec | ||
| then | ||
| spec // | ||
| { outPath = getFetcher spec { inherit (spec) url sha256; } ; } | ||
| else spec | ||
| ) sources | ||
| in | ||
| mkSources (mkConfig {}) // { __functor = _: settings: mkSources (mkConfig settings); } |