populate: layer populate below krops

populate is a program of its own, with a Nix library, in pkgs/populate,
which krops uses, and which doesn't use krops:

- default.nix builds the program, with nix-build there or callPackage,
  as pkgs.populate-unwrapped.
- lib is populate's Nix library: the types of sources and the POSIX
  types they use, evalSource, flakeFollows, hasGeneratedFlake, and
  derivesFlake, taking nixpkgs' lib.  krops' lib takes them from there,
  so it provides them as before, and so does lib/types.

pkgs.populate, the function from populate's arguments to a script
running the program, is krops' own, in pkgs/krops/populate.nix, with
checks.nix next to it.  It takes the program as populate-unwrapped,
which callPackage passes from the overlay; the flake, whose nixpkgs
lacks it, passes its own.

1 files changed, 0 insertions, 25 deletions

diff --git a/pkgs/populate/program.nix b/pkgs/populate/program.nix
deleted file mode 100644
index fbb364c..0000000
--- a/pkgs/populate/program.nix
+++ /dev/null
@@ -1,25 +0,0 @@
-# The program delivering sources, built from the crate in this directory.
-{ rustPlatform }:
-
-let
-  cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
-in
-
-rustPlatform.buildRustPackage {
-  pname = cargoToml.package.name;
-  inherit (cargoToml.package) version;
-  # Without what cargo doesn't build from, so changes to the Nix files or
-  # the docs don't rebuild the program.  By names, not by paths relative to
-  # this directory: the paths the filter gets needn't start with
-  # toString ./., e.g. if a symlink leads to this directory.
-  src = builtins.path {
-    name = "populate-src";
-    path = ./.;
-    filter = path: type: let
-      name = baseNameOf path;
-    in
-      !(builtins.elem name [ ".gitignore" "docs" "target" ] ||
-        builtins.match ".*\\.nix" name != null);
-  };
-  cargoLock.lockFile = ./Cargo.lock;
-}