I keep getting

darcs: C:\Users\Jason
Gross\AppData\Roaming\darcs/cache/pristine.hashed/a05ae6f57358230f5721cea8e3ff36ad46822e5f5d9d1f4464006a34664864c5-new_b8fd9a7d09dd710a22fb87db5f8bd471:
MoveFileEx "C:\\Users\\Jason
Gross\\AppData\\Roaming\\darcs/cache/pristine.hashed/a05ae6f57358230f5721cea8e3ff36ad46822e5f5d9d1f4464006a34664864c5-new_b8fd9a7d09dd710a22fb87db5f8bd471"
"C:\\Users\\Jason
Gross\\AppData\\Roaming\\darcs/cache/pristine.hashed/a05ae6f57358230f5721cea8e3ff36ad46822e5f5d9d1f4464006a34664864c5":
permission denied (Access is denied.)

when I try to darcs get --lazy http://code.haskell.org/Agda.  It will
then just sit there (rather than updating the "copying pristine"
number done), until I kill darcs.  I can then restart the command, and
it will get a bit further, but it's annoying to have to keep doing
this.  It would be nice if darcs tried again (up to, e.g., 3 times,
after waiting a second or two or so each time).

This is on windows 7, with darcs from the haskell platform, installed
via cabal-dev.

-Jason

Hi Jason,

On 14 May 2013, at 20:32, Jason Gross wrote:
> 
> darcs: C:\Users\Jason
> Gross\AppData\Roaming\darcs/cache/pristine.hashed/a05ae6f57358230f5721cea8e3ff36ad46822e5f5d9d1f4464006a34664864c5-new_b8fd9a7d09dd710a22fb87db5f8bd471:
> MoveFileEx "C:\\Users\\Jason
> Gross\\AppData\\Roaming\\darcs/cache/pristine.hashed/a05ae6f57358230f5721cea8e3ff36ad46822e5f5d9d1f4464006a34664864c5-new_b8fd9a7d09dd710a22fb87db5f8bd471"
> "C:\\Users\\Jason
> Gross\\AppData\\Roaming\\darcs/cache/pristine.hashed/a05ae6f57358230f5721cea8e3ff36ad46822e5f5d9d1f4464006a34664864c5":
> permission denied (Access is denied.)


Sorry Darcs is being annoying to use on Windows. :-(

Some sort of retry mechanism I think has also been suggested for HTTP fetch errors.
But (BTS readers) what's with the access denied errors in the first place?


-- 
Eric Kow <http://erickow.com>

That's a very good question.  I get the same problem occasionally when I
tell agda to typecheck a file, so I suspect the problem has something to do
with how Haskell implements I/O on windows.  Perhaps it uses some kind-of
non-blocking/no-wait call, and windows takes longer to respond than linux,
and so a permission denied error looks the same as a "I was waiting for the
harddisk to spin to the right position" on windows?  (This is a wild guess;
I haven't actually looked at the source code at all.)

-Jason


On Wed, May 15, 2013 at 5:07 AM, Eric Kow <bugs@darcs.net> wrote:

>
> Eric Kow <kowey@darcs.net> added the comment:
>
> Hi Jason,
>
> On 14 May 2013, at 20:32, Jason Gross wrote:
> >
> > darcs: C:\Users\Jason
> >
> Gross\AppData\Roaming\darcs/cache/pristine.hashed/a05ae6f57358230f5721cea8e3ff36ad46822e5f5d9d1f4464006a34664864c5-new_b8fd9a7d09dd710a22fb87db5f8bd471:
> > MoveFileEx "C:\\Users\\Jason
> >
> Gross\\AppData\\Roaming\\darcs/cache/pristine.hashed/a05ae6f57358230f5721cea8e3ff36ad46822e5f5d9d1f4464006a34664864c5-new_b8fd9a7d09dd710a22fb87db5f8bd471"
> > "C:\\Users\\Jason
> >
> Gross\\AppData\\Roaming\\darcs/cache/pristine.hashed/a05ae6f57358230f5721cea8e3ff36ad46822e5f5d9d1f4464006a34664864c5":
> > permission denied (Access is denied.)
>
>
> Sorry Darcs is being annoying to use on Windows. :-(
>
> Some sort of retry mechanism I think has also been suggested for HTTP
> fetch errors.
> But (BTS readers) what's with the access denied errors in the first place?
>
>
> --
> Eric Kow <http://erickow.com>
>
> ----------
> title: Darcs should support resuming from transient access denied errors
> -> Darcs should support resuming from transient access denied errors
>
> __________________________________
> Darcs bug tracker <bugs@darcs.net>
> <http://bugs.darcs.net/issue2323>
> __________________________________
>

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