Hello, I'm asking for advice because i don't know how to handle this.
I have access to an svn repository through the "file:" protocol. The svn repository is homed on an ntfs disk, with all ACL permissions inherited from a top directory: various kinds of Administrators (not me) have many rights. A single dedicated group is allowed r/w access, and i belong to this group of course, like all my colleagues that also have access to this repository. Most of my colleagues use Windows tools (TortoiseSVN) and all is ok for them. I'd like to use Cygwin of course, and we have subversion-1.8.10 (on x86) which is in use at other places and seems ok. Indeed, 'svn checkout' and more generally all read-only activity does work perfectly on this repository. But i do encounter some problems with 'svn commit': it always fail with "Permission denied". I tried to write directly to the disk and of course it works. The issue (to my current understanding) is (details omitted): - svn internally uses a temporary file (e.g. the file "current" under the folder "db") - the file is created (in fact: truncated to empty) by Cygwin with permissions set to '---rwx---': no permissions for user (the ACL entries show no mention of any user), rwx for group (and for others we don't care) - Cygwin (chmod in fact, called by libapr) implements the '---' for user: it insists, using the Deny/Allow mechanism described in https://cygwin.com/cygwin-ug-net/ntsec.html, that the user will not be capable of reading the file, and... succeeds - indeed, the user (i.e. the svn process that created the file) cannot read it any more and terminates with permission denied (and repository is locked and must be manually "svnadmin recover'ed"). In fact, Windows users do not need to have any personal right on a file to be able to read its content: it is enough that they belong to a group that has the appropriate access. For Cygwin users, this is not the same: permissions for user and permissions for group are separate. To make things work today, i had no better idea than patching the Cygwin dll in order to temporarily disconnect the insertion of Deny rights. It works of course, but it cannot be an option for tomorrow. Is there any way to handle this problem cleanly, preferably without changing any permissions on the repository? I tried to mount the disk noacl, the problem remains exactly the same. Thank you for your suggestions, Regards, Denis Excoffier. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
