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Diffstat (limited to 'pkgs/by-name-overlay.nix')
-rw-r--r-- | pkgs/by-name-overlay.nix | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/pkgs/by-name-overlay.nix b/pkgs/by-name-overlay.nix deleted file mode 100644 index 7eb3d239..00000000 --- a/pkgs/by-name-overlay.nix +++ /dev/null @@ -1,70 +0,0 @@ -# Adapted from this: https://github.com/NixOS/nixpkgs/blob/1814b56453c91192f6d5a6276079948f9fe96c18/pkgs/top-level/by-name-overlay.nix -{ - lib, - sysLib, - pkgs, - baseDirectory, -}: -# This file turns the pkgs/by-name directory (see its README.md for more info) into an overlay that adds all the defined packages. -# No validity checks are done here, -# instead this file is optimised for performance, -# and validity checks are done by CI on PRs. -let - # FIXME: Check if we override something in the set <2024-05-22> - callPackage = lib.callPackageWith (pkgs // myPkgs // {inherit sysLib;}); - inherit lib; - - inherit - (builtins) - readDir - ; - - inherit - (lib.attrsets) - mapAttrs - mapAttrsToList - mergeAttrsList - ; - - # Package files for a single shard - # Type: String -> String -> AttrsOf Path - namesForShard = shard: type: - if type != "directory" - then - # Ignore all non-directories. Technically only README.md is allowed as a file in the base directory, so we could alternatively: - # - Assume that README.md is the only file and change the condition to `shard == "README.md"` for a minor performance improvement. - # This would however cause very poor error messages if there's other files. - # - Ensure that README.md is the only file, throwing a better error message if that's not the case. - # However this would make for a poor code architecture, because one type of error would have to be duplicated in the validity checks and here. - # Additionally in either of those alternatives, we would have to duplicate the hardcoding of "README.md" - {} - else - mapAttrs - (name: _: baseDirectory + "/${shard}/${name}/package.nix") - (readDir (baseDirectory + "/${shard}")); - - # The attribute set mapping names to the package files defining them - # This is defined up here in order to allow reuse of the value (it's kind of expensive to compute) - # if the overlay has to be applied multiple times - packageFiles = mergeAttrsList (mapAttrsToList namesForShard (readDir baseDirectory)); - myPkgs = - mapAttrs - (_: path: callPackage path {}) - packageFiles; -in - # # TODO: Consider optimising this using `builtins.deepSeq packageFiles`, - # # which could free up the above thunks and reduce GC times. - # # Currently this would be hard to measure until we have more packages - # # and ideally https://github.com/NixOS/nix/pull/8895 - # self: super: - # { - # # This attribute is necessary to allow CI to ensure that all packages defined in `pkgs/by-name` - # # don't have an overriding definition in `all-packages.nix` with an empty (`{ }`) second `callPackage` argument. - # # It achieves that with an overlay that modifies both `callPackage` and this attribute to signal whether `callPackage` is used - # # and whether it's defined by this file here or `all-packages.nix`. - # # TODO: This can be removed once `pkgs/by-name` can handle custom `callPackage` arguments without `all-packages.nix` (or any other way of achieving the same result). - # # Because at that point the code in ./stage.nix can be changed to not allow definitions in `all-packages.nix` to override ones from `pkgs/by-name` anymore and throw an error if that happens instead. - # _internalCallByNamePackageFile = file: self.callPackage file {}; - # } - # // - myPkgs |