\documentclass{minimal}
\usepackage{logreq}

% indexing example
% (e.g., if index.sty were to support logreq)

% sample preamble:

% \usepackage{index}
% \newindex{default}{idx}{ind}{Subject Index}
% \newindex{names}{ndx}{nnd}{Name Index}
% \newindex{titles}{tdx}{tnd}{Title Index}

% workflow:

% latex file
% makeindex -o file.ind file.idx (= makeindex file)
% makeindex -o file.nnd file.ndx
% makeindex -o file.tnd file.tdx
% latex file

\logrequest[package=index,priority=8,active=0]{%
  \generic{makeindex}
  \cmdline{
    \binary{makeindex}
    \option{-o example.ind}
    \infile{\jobname.idx}
  }
  \input{
    \file{\jobname.idx}
  }
  \output{
    \file{\jobname.ind}
  }
  \provides[type=dynamic]{
    \file{\jobname.ind}
  }
  \requires[type=dynamic]{
    \file{\jobname.idx}
  }
}

\logrequest[package=index,priority=8,active=0]{%
  \generic{makeindex}
  \cmdline{
    \binary{makeindex}
    \option{-o example.nnd}
    \infile{\jobname.ndx}
  }
  \input{
    \file{\jobname.ndx}
  }
  \output{
    \file{\jobname.nnd}
  }
  \provides[type=dynamic]{
    \file{\jobname.nnd}
  }
  \requires[type=dynamic]{
    \file{\jobname.ndx}
  }
}

\logrequest[package=index,priority=8,active=0]{%
  \generic{makeindex}
  \cmdline{
    \binary{makeindex}
    \option{-o example.tnd}
    \infile{\jobname.tdx}
  }
  \input{
    \file{\jobname.tdx}
  }
  \output{
    \file{\jobname.tnd}
  }
  \provides[type=dynamic]{
    \file{\jobname.tnd}
  }
  \requires[type=dynamic]{
    \file{\jobname.tdx}
  }
}

\ltxrequest{index}{0}{
  \provides[type=dynamic]{
    \file{\jobname.idx}
    \file{\jobname.ndx}
    \file{\jobname.tdx}
  }
  \requires[type=dynamic]{
    \file{\jobname.ind}
    \file{\jobname.nnd}
    \file{\jobname.tnd}
  }
}

\begin{document}
\end{document}