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{ lib, config, pkgs, ... }:

let
  cfg = config.my.home.git;
  sshPub = builtins.fromTOML (builtins.readFile ../../configs/ssh-pubkeys.toml);
in
{
  options.my.home.git = with lib; {
    enable = mkEnableOption "git configuration";
  };

  config = lib.mkIf cfg.enable {
    home.file.".ssh/allowed_signers".text = lib.concatMapStrings (x: "franck@fcuny.net ${x}\n") (with sshPub; [ aptos work git ykey-laptop ]);

    programs.git = {
      enable = true;
      aliases = {
        s = "status --short --branch";
        amend = "commit --amend --no-edit";
      };
      signing = {
        key = "key::${sshPub.ykey-laptop}";
        signByDefault = true;
      };
      extraConfig = {
        core.whitespace = "trailing-space,space-before-tab";
        color.ui = "true";

        gpg = {
          format = "ssh";
          ssh.allowedSignersFile = "~/.ssh/allowed_signers";
        };
        # abort if the remote branch does not match the local one
        push.default = "simple";

        init.defaultBranch = "main";

        pull.rebase = true;
        rebase = {
          # Automatically create a temporary stash entry before the
          # operation begins, and apply it after the operation ends.
          autoStash = true;
          # Print a warning if some commits are removed
          missingCommitsCheck = "warn";
        };

        branch.autosetuprebase = "remote";
        branch.sort = "authordate";

        commit.template = "${config.xdg.dataHome}/git/commit.template";
      };
      userName = "Franck Cuny";
      userEmail = "franck@fcuny.net";
      extraConfig = {
        "credential \"https://github.com\"" = { username = "fcuny"; };
        "credential \"https://git.fcuny.net\"" = { username = "fcuny"; };
      };
      ignores = [ (builtins.readFile ./gitignore) ];
    };
    xdg.dataFile."git/commit.template" = { source = ./commit.template; };
    home.packages = with pkgs; [ tools.git-blame-stats gitAndTools.pre-commit ];
  };
}