On 18-Sep-2015 15:03, Adrian Matoga wrote:
On Friday, 18 September 2015 at 11:35:45 UTC, John Colvin wrote:
Posting here instead of learn because I think it uncovers a design flaw
void main(string[] args)
{
import std.file : dirEntries, SpanMode;
import std.stdio : writeln;
foreach(file; dirEntries(args[1], SpanMode.depth))
writeln(file.name);
}
Modify this program such that it will print "<file.name> access
denied" instead of crashing with an exception whenever it hits a
permissions problem. Remember that you might not even have permission
to read the directory given in args[1]. Remember that access
permissions can change at any time.
It can be done, but it is seriously ugly.
https://github.com/D-Programming-Language/phobos/pull/931
I had to move to some urgent stuff instead of improving the PR and later
I forgot about it. The discussion points out what not to do when solving
this issue. :)
FYI
https://github.com/D-Programming-Language/phobos/pull/2768
--
Dmitry Olshansky
