57 lines
1.5 KiB
Nix
57 lines
1.5 KiB
Nix
# Not part of the public API – for use within nixpkgs only
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#
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# Usage:
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# ```nix
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# let
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# sources = builtins.fromJSON (builtins.readFile ./sources.json);
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# in mkMyDerivation rec {
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# version = src.version; # This obviously only works for releases
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# src = pkgs.npins.mkSource sources.mySource;
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# }
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# ```
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{ fetchgit
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, fetchzip
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, fetchurl
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}:
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let
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mkSource = spec:
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assert spec ? type; let
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path =
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if spec.type == "Git" then mkGitSource spec
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else if spec.type == "GitRelease" then mkGitSource spec
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else if spec.type == "PyPi" then mkPyPiSource spec
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else if spec.type == "Channel" then mkChannelSource spec
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else throw "Unknown source type ${spec.type}";
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in
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spec // { outPath = path; };
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mkGitSource = { repository, revision, url ? null, hash, ... }:
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assert repository ? type;
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# At the moment, either it is a plain git repository (which has an url), or it is a GitHub/GitLab repository
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# In the latter case, there we will always be an url to the tarball
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if url != null then
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(fetchzip {
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inherit url;
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sha256 = hash;
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extension = "tar";
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})
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else assert repository.type == "Git"; fetchgit {
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url = repository.url;
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rev = revision;
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};
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mkPyPiSource = { url, hash, ... }:
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fetchurl {
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inherit url;
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sha256 = hash;
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};
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mkChannelSource = { url, hash, ... }:
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fetchzip {
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inherit url;
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sha256 = hash;
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extension = "tar";
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};
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in
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mkSource
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