nixos-dotfiles

{pkgs, ...}: let

  deploy_hook = pkgs.writeShellScript "post-receive-deploy" ''

    REPO=$(basename $(pwd) .git)

    SITE=/www/sites/$REPO

    if [ -d "$SITE" ]; then

        GIT_WORK_TREE=$SITE git checkout -f

        echo "deployed $REPO → $SITE"

    else

        echo "no deploy target for $REPO (no $SITE directory)"

    fi

  '';

in {

  systemd.tmpfiles.rules = [

    "d /www/sites 0755 root root -"

    "L+ /srv/git/.deploy-hook - - - - ${deploy_hook}"

  ];

  environment.systemPackages = [

    (pkgs.writeShellScriptBin "git-enable-deploy" ''

      if [ -z "$1" ]; then

        echo "usage: git-enable-deploy <repo.git>"

        exit 1

      fi

      REPO="/srv/git/$1"

      if [ ! -d "$REPO" ]; then

        echo "repo not found: $REPO"

        exit 1

      fi

      ln -sf /srv/git/.deploy-hook "$REPO/hooks/post-receive"

      chmod +x "$REPO/hooks/post-receive"

      echo "enabled deploy hook for $1"

    '')

  ];

}