#1778: Typing in g.region without parameters does not open a g.region window
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Reporter: pvanbosgeo | Owner: grass-dev@…
Type: defect | Status: new
Priority: normal | Milestone: 7.0.0
Component: Default | Version: svn-trunk
Keywords: g.region, r.colors, r.mask | Platform: Linux
Cpu: x86-64 |
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Comment(by glynn):
Replying to [comment:27 hamish]:
> I'm still highly confused about the need for any change since everything
seemed to be working very smoothly in GRASS 6. For example d.erase if
called alone would do its job without a GUI,
That's because it does this:
{{{
if (argc > 1 && G_parser(argc, argv))
exit(1);
}}}
If you run it without arguments, G_parser() never gets called (this was to
prevent it using the terminal-based interactive prompting which preceded
the parameter dialogs).
But in 7.0, it's required that all modules call G_parser(), always, no
exceptions. This is required e.g. for setting the verbose/quiet/overwrite
status from environment variables. It's possible that other initialisation
tasks may be moved from G_gisinit() to G_parser() in the future.
Consequently, G_parser() can't be skipped, and changing the dialog
condition from "no options given" to "no options given, but at least one
required" was the simplest way to preserve the "no unnecessary dialogs"
behaviour. However, because it's now implemented in the parser rather than
the module, the module can't override the decision in the event that the
"no required options" logic is inadequate.
--
Ticket URL: <https://trac.osgeo.org/grass/ticket/1778#comment:28>
GRASS GIS <http://grass.osgeo.org>
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