Get the sources for all transitive dependencies of a set of haskell packages, and generate a tags file.
Tags for all dependencies of a cabal project:
nix-build --arg cabalProject ./. --out-link dependencies path/to/haskell-sources-tags-nix/Or install the package:
nix-env -f cabal-sources-tags.nix -iand then from a cabal project:
cabal-sources-tagsTags for a given set of packages:
let
config = {
packageOverrides = pkgs: rec {
haskellPackages = pkgs.haskell.packages.ghc865.override {
overrides = haskellPackagesNew: haskellPackagesOld: {
my-custom-library = haskellPackagesOld.callCabal2nix "my-custom-library" ../my-custom-ibrary {};
};
};
};
};
pkgs = import <nixpkgs> { inherit config; };
haskellPackages = pkgs.haskellPackages;
packages = hp: (with hp; [ turtle lens my-custom-library ]);
in
pkgs.callPackage ../haskell-sources-tags-nix/tag-sources.nix {
inherit pkgs haskellPackages packages;
}set tags+=dependencies/tags
Advantages of this project compared to codex:
- Simplicity: all the heavy lifting is done by Nix
- Not limited to downloading sources from Hackage: correct sources are used even if a dependency is modified locally (like
my-custom-libraryin the example above)
Disadvantages compared to codex:
- Requires Nix
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