Here's some output from
truss darcs changes
getcwd("/darcs/darcs-2.0.0", 4096) = 0
chdir("darcs_testing_for_nfs") = 0
getpid() = 11860 [11859]
lstat64("darcsmraGkx", 0x08044D20) Err#2 ENOENT
open("darcsmraGkx", O_RDWR|O_CREAT|O_EXCL, 0600) = 3
getcwd("/darcs/darcs-2.0.0/darcs_testing_for_nfs", 4096) = 0
fcntl(3, F_GETFL) = 2
fcntl(3, F_SETFL, FWRITE|FNONBLOCK) = 0
fstat64(3, 0xD0879708) = 0
ioctl(3, TCGETA, 0x08044E1C) Err#25 ENOTTY
unlink("/darcs/darcs-2.0.0/darcs_testing_for_nfs/darcsmraGkx") = 0
chdir("..") = 0
rmdir("darcs_testing_for_nfs") = 0
close(3) = 0
unlink("/darcs/darcs-2.0.0/darcs_testing_for_nfs/darcsmraGkx") Err#2 ENOENT
chdir("/darcs/darcs-2.0.0") = 0
rmdir("darcs_testing_for_nfs") Err#2 ENOENT
Is it normal for darcs to try to unlink, chdir, rmdir, after it already did it
once?
________________________________
Date: Tue, 22 Apr 2008 22:28:01 -0700
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: [darcs-users] fromJust error in darcs-2.0.0
CC: [email protected]
I hit send too fast...
What is your full configure command? Specifically, I'm wondering if you're
using the old fast packed strings or the new ByteString. The see a few things
that could each be questionable where the fromJust is failing:
*mmap could be subtly different than on other platforms
*there are several calls to unsafeInterleave functions, but often this is safe
in practice
*either FastPackedStrings or ByteStrings are used here
I forgot one, I meant to mention that we call getSymbolicLinkStatus, so
obviously, the system calls related to symbolic links matters here too.
Specifically, we have a case like this:
if isRegularFile fs then ...
else if isDirectory fs || (isSymbolicLink fs && dirname == ".") then ...
else return Nothing <-- This would cause your problem
I think fs should be the path of the repository.
As you can see from the logic, that if we hit the right combination of values
from isRegularFile, isDirectory and isSymbolicLink we end up in the "return
Nothing" case which would cause your problem. It's not the only way to get
there, though.
Is there anything special about where you're running your code or your file
system?
Jason
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