[Tclish-devel] batch download

[Kris R. <kr...@kr...>]

I've prepared my first contribution to the new installer project, available at
http://www.kraney.com/installer/more_installer.zip. It contains:

- installer::bg_download

  provides a high-level interface for doing long-running batch downloads.
  Ultimately, this will automatically handle resuming files that were partially
  downloaded and possibly authentication of downloaded files. For now it just
  provides basic functionality

- installer::text_download

  same as bg_download, but pre-configured to have a nice-looking progress output
  on stdout.

- installer::gui_download

  same as bg_download, but pre-configured to show a status window. Takes
  an optional "-parent" flag, in which case it will embed the status into the
  parent widget passed in, rather than creating a new window.

- installer::url 

  provides a set of commands similar to the "file" command to deal with url
  strings. Still fairly incomplete, only the subset useful in the above commands
  has been implemented.



All three of the download commands take the same arguments, with the addition of
"-parent" on gui_download. Here's a simple example usage:

installer::text_download \
    -base http://prdownloads.sourceforge.net/tclish \
    -urls {tclish-linux tclish-solaris tclish-aix}
    -block 1


It's extracted from tclish but refined to work well as library code. This is
intended to drop directly into Steve's extension installer code with a minimum
of fuss, to provide a nicer UI.

Later,
- Kris Raney