nixpkgs/pkgs/tools/package-management/nix-update-source/default.nix
Jan Tojnar 59a94b57f0
update.nix: Run update scripts in parallel
To make updating large attribute sets faster, the update scripts
are now run in parallel.

Please note the following changes in semantics:

- The string passed to updateScript needs to be a path to an executable file.
- The updateScript can also be a list: the tail elements will then be passed
  to the head as command line arguments.
2018-12-01 19:17:13 +01:00

51 lines
1.6 KiB
Nix

{ stdenv, lib, pkgs, fetchFromGitHub, python3Packages, nix-prefetch-scripts }:
python3Packages.buildPythonApplication rec {
version = "0.6.3";
name = "nix-update-source-${version}";
src = fetchFromGitHub {
owner = "timbertson";
repo = "nix-update-source";
rev = "version-0.6.3";
sha256 = "157wvv9vnaszzwbj68jpdc0imcm1hdab3z760bx2axbsgfpqqilz";
};
propagatedBuildInputs = [ nix-prefetch-scripts ];
passthru = {
# NOTE: `fetch` should not be used within nixpkgs because it
# uses a non-idiomatic structure. It is provided for use by
# out-of-tree nix derivations.
fetch = path:
let
fetchers = {
# whitelist of allowed fetchers
inherit (pkgs) fetchgit fetchurl fetchFromGitHub;
};
json = lib.importJSON path;
fetchFn = builtins.getAttr json.fetch.fn fetchers;
src = fetchFn json.fetch.args;
in
json // json.fetch // {
inherit src;
overrideSrc = drv: lib.overrideDerivation drv (orig: { inherit src; });
};
updateScript = ''
#!${stdenv.shell}
set -e
echo
cd ${toString ./.}
${pkgs.nix-update-source}/bin/nix-update-source \
--prompt version \
--replace-attr version \
--set owner timbertson \
--set repo nix-update-source \
--set type fetchFromGitHub \
--set rev 'version-{version}' \
--modify-nix default.nix
'';
};
meta = {
description = "Utility to automate updating of nix derivation sources";
maintainers = with lib.maintainers; [ timbertson ];
license = lib.licenses.mit;
};
}