[R-SIG-Mac] Start R with --save?
simon.urbanek at r-project.org
Fri Jul 14 05:42:26 CEST 2006
On Jul 13, 2006, at 7:10 PM, Duncan Murdoch wrote:
> I am not sure if the command line arg --save is supposed to be
> by R.app,
No, it's not supposed to be supported. R.app ignores all command line
arguments, because it assumes that it was started using LS (which
supply their own special arguments). The command-line R of course
supports all arguments as documented, but it has nothing to do with
As a matter of fact R.app starts R with --no-save --gui=cocoa, but
R.app sets SaveAction to SA_SAVEASK during initialization but after
parsing of arguments. The quit dialog is handled via
windowShouldClose: message instead.
This is not set in stone - just the status-quo.
> but it doesn't
> work. When I start R from a Terminal command line with command line
> option --save:
> /Applications/R.app/Contents/MacOS/R --save
This is not the way to start R from the command line - for the GUI it's
also note that LS send "arguments" such as files to open via Apple
Events and not via command line (e.g. open -a R.app fool.R does not
result in .../MacOS/R foo.R)
For the console version it's
(or more precisely /Library/Frameworks/R.framework/Resources/bin/R if
the user removed the convenience softlink for some reason).
> instead of a silent save, I get the Unix-style prompt in the console:
> Save workspace image? [y/n/c]:
> If this isn't the way to specify that I want an automatic save,
> what is?
The GUI has currently no way to specify automatic save. One option
would be to add a preferences setting (probably the most native way),
others include environment option or command-line arguments. As I was
saying earlier, the problem with command-line arguments is that they
cannot be used with LS, and manual startup without LS is not a
supported way (it works for now, but at times there were problems
with it, because the system settings are entirely different for an
application started w/o LS).
I guess the reason why this didn't come up in practice is that the
GUI has an integrated editor, so there is no such thing as --save,
because you still need to specify filenames for unsaved untitled
files, decide what to do with unsaved changes etc., so --save may be
Nevertheless, I'm open to any requests - a modification it pretty
easy to implement.
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