[Monotone-devel] case sensitivity bug(?) on Mac OS X

[Kyle Hammond]

Hi,

I'm not sure this is really an error in monotone per se, as much as a  
new error message is needed for the Mac OS X (Darwin) version of  
monotone.

I am part of a group at the Univ. of Minnesota starting to use  
monotone with a small development group (three developers).  The main  
developer committed a project to his database that has been in  
development for about three years on a Linux system.  I pulled all of  
the information from the main monotone database to my local database  
on Mac OS X over the network just fine.

I was then doing a branch checkout from my local database to obtain a  
new working copy.  I received the following error message.

monotone: fatal: std::exception:  
boost::filesystem::create_directories: "cgi/class": path exists and  
is not a directory
monotone: this is almost certainly a bug in monotone.
monotone: please send this error message, the output of 'monotone -- 
full-version',
monotone: and a description of what you were doing to monotone- 
address@hidden
monotone: discarding debug log (maybe you want --debug or --dump?)

Looking at the original project, there is a folder named 'cgi' at the  
root level.  Within that folder, there is a text file named "Class"  
as well as a folder named "class".  This is definitely a problem with  
case sensitivity on Mac OS X.  The default Mac OS X file system (HFS 
+) is not case sensitive, so cannot have two files (or folders) with  
the same name except for case differences.  The Mac OS X version of  
monotone should at least detect this situation and have a better  
error message about case-sensitivity not being supported.

We're going to change our project on the Linux system to have  
different file/folder names so we should be able to use monotone then.

monotone --full-version
monotone 0.22 (base revision: 28058ae3e850229a5d8fae65415cbbf82b435377)
Running on: Darwin 8.2.0 Darwin Kernel Version 8.2.0: Fri Jun 24  
17:46:54 PDT 2005; root:xnu-792.2.4.obj~3/RELEASE_PPC Power Macintosh
Changes since base revision:

new_manifest [10362ee0d4a3dc70c67ab38ec21db76d3d231320]

old_revision [28058ae3e850229a5d8fae65415cbbf82b435377]
old_manifest [10362ee0d4a3dc70c67ab38ec21db76d3d231320]

Also, here is a little test I ran on a Mac OS X 10.4.2 system in  
Terminal to confirm that HFS+ is not case sensitive.

$ cat >testing
hello
$ ls -al
total 8
drwxr-xr-x    4 genbio  admin   136 Sep  6 08:52 .
drwxrwxr-x   33 root    admin  1224 Sep  6 08:23 ..
-rw-r--r--    1 genbio  admin     6 Sep  6 08:52 testing
$ more testing
hello
$ mkdir testing
mkdir: testing: File exists

$ cat >Testing
does this work?
$ ls -al
total 8
drwxr-xr-x    4 genbio  admin   136 Sep  6 08:52 .
drwxrwxr-x   33 root    admin  1224 Sep  6 08:23 ..
-rw-r--r--    1 genbio  admin    16 Sep  6 08:54 testing
$ more testing
does this work?


Best regards,
Kyle
-------------
Kyle Hammond
address@hidden           University of Minnesota
Information Technology Professional
General Biology Program, College of Biological Sciences
3-104 Molecular & Cellular Biology, 420 Washington Ave SE, Mpls MN 55455
(612) 624-2311       FAX: (612) 626-7823