Diffs for setup.exe unattended mode

[Harry Johnston]

Hi,

Attached are diffs to provide a basic unattended mode in setup.exe.  Let me 
know if they need to be in a different format, or if I should be using CVS 
(I might need a hint or two though).

I used command-line options as follows:

-q --quiet-mode

Requests unattended mode.  Setup will still stop and ask for assistance if 
it runs into a problem or if you haven't provided enough information.

-D --download

Downloads packages without installing them.

-L --local-install

Installs from a local directory.

-R directory

Specifies the root installation directory.  (The long option is --root but 
long string options don't currently work.)

-s site

Specifies the download site.  (The long option is --site but long string 
options don't currently work.)

-n --no-shortcuts

Disables the creation of the desktop and start menu shortcuts.  (Not 
actually a new option but the implementation is different.  I don't think 
the old implementation worked quite right.)

-N --no-startmenu

Disables the creation of the start menu shortcut.

-d --no-desktop

Disables the creation of the desktop shortcut.

There are some limitations:

1) There is no command-line option to set the local package directory.  If 
Cygwin has already been installed I think the previous value will be 
remembered otherwise the current directory will be used.  (Such an option 
could be added easily enough if anyone needs it.)

2) There are no command-line options to set the internet access 
options.  To download in unattended mode you need a direct internet 
connection.  (Again, it wouldn't be too hard for someone to add these options.)

3) The big one: there is no way to specify which packages to install.  You 
can only install the default set.  This won't be quite as easy to fix, I 
suspect it will need someone familiar with the package management 
system.  It will probably also be necessary to extend the command line 
options code to support multi-valued options.

I haven't done extensive testing, but it seems to work.

Regards,

   Harry.
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Harry Johnston, http://www.cs.waikato.ac.nz/~harry