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Re: Cygwin's svn appends unwanted .exe to file name on checkout

On 3/2/2010 3:58 AM, Corinna Vinschen wrote:
The .exe suffix is added if all of the below is true:

- The file is renamed via the rename(2) function.
- The name does not only change by case on a caseinsensitive mount.
- The file is a binary checked with the Win32 function GetBinaryType,
   and the returned type is SCS_32BIT_BINARY or SCS_64BIT_BINARY.
- The source filename has none of the following suffixes:
- The destination filename has none of the aforementioned suffixes.

All these conditions are true in the svn test case. svn is renaming tst/tempfile.tmp to tst/ using libapr1, which is using rename(2).

It does seem that the ACLs on the directory and file play a role, too. I've attached a reproduction script along with a simple rename(2) driver program. The script explicitly removes the default group ACLs from a directory before doing a rename(2) in that directory. In that case, no .exe suffix is added. If you modify the top of the script to set "SETACLS=set", it will add default group ACLs of rwx and the .exe suffix is added.

I'm not sure if this points to a bug in Cygwin or not. It does explain why Alan and I were seeing different behavior.

Regardless, it doesn't seem like rename(2) will be changed to avoid adding the .exe suffix, so either we live with this behavior in svn or I need to patch libapr1 to do a rename without triggering this behavior. I tried using renameat(2) but that (unsurprisingly) also triggers the behavior.

Is there some sanctioned way to do a rename without triggering the .exe suffix addition?

David Rothenberger  ----

Alden's Laws:
        (1)  Giving away baby clothes and furniture is the major cause
             of pregnancy.
        (2)  Always be backlit.
        (3)  Sit down whenever possible.

Attachment: tstren.c
Description: Text document

Description: Text document

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