Feature #1305
Create a directory
Description
Ange asked about a command in CoCoA for creating a directory.
Do we want to offer such a command?
Perhaps OpenOFile should automatically create all necessary directories (perhaps depending on an arg?)?
Related issues
History
#1
Updated by John Abbott over 4 years ago
Updated by It seems that C++17 includes a portable command for creating directories (create_directory), so this would make portable impl easy.
BOOST also offers a command for creating directories.
If we impl a separate command the users would write code like this:
CreateDirectory("NewDir");
output := OpenOFile("NewDir/filename");
println answer on output;
If we let OpenOFile automatically create all dirs then the users would write code like this:
output := OpenOFile("NewDir/filename", "CreateDirs");
println answer on output;
Comments, ideas, criticisms?
#2
Updated by Anna Maria Bigatti over 4 years ago
Updated by I agree it would be nice.
Do you want to do it now, or wait a bit before going all the way to C++17?
#3
Updated by Anna Maria Bigatti over 4 years ago
- Related to Design #1225: Move to C++14 (skipping C++11) added
#4
Updated by John Abbott over 4 years ago
I prefer not to jump straight to C++17 (as it is only 2019).
We can probably use the BOOST impl since CoCoA-5 requires BOOST.
Which interface do you prefer? A separate function or an option to OpenOFile?
I think it does not make much sense to left OpenIFile create new directories.
#5
Updated by Anna Maria Bigatti over 4 years ago
- % Done changed from 0 to 10
I much prefer having CreateDirectory.
In fact, I'd like it to give a warning if the directory already exists,
(and maybe also have CreateDirectoryNoWarning, for the silent version, if needed ;-) )
It's easier to make two functions (oneliners) than make optional arguments, and I also think it is easier to document and find in the documentation.