core/pkgs/build-support/fetch9front/default.nix

{ fetchgit, fetchzip, lib }:

lib.makeOverridable ({ owner, repo, rev, domain ? "git.9front.org"
  , name ? "source", leaveDotGit ? false, deepClone ? false
  , ... # For hash agility
  }@args:

  let
    passthruAttrs = removeAttrs args [
      "domain"
      "owner"
      "repo"
      "rev"
      "leaveDotGit"
      "deepClone"
    ];

    useFetchGit = leaveDotGit || deepClone;
    fetcher = if useFetchGit then fetchgit else fetchzip;

    gitRepoUrl = "git://${domain}/${owner}/${repo}";

    fetcherArgs = (if useFetchGit then {
      # git9 does not support shallow fetches
      inherit rev leaveDotGit;
      url = gitRepoUrl;
    } else {
      url = "https://${domain}/${owner}/${repo}/${rev}/snap.tar.gz";

      passthru = { inherit gitRepoUrl; };
    }) // passthruAttrs // {
      inherit name;
    };

  in fetcher fetcherArgs // { inherit rev; })