Mail Archives: cygwin/2025/01/24/04:22:18
On Fri, Jan 24, 2025 at 09:32:55AM +0100, Mario Emmenlauer via Cygwin wrote:
>
> Dear All,
>
> There is an an issue that plagues me when using git in Cygwin.
>
> I have two developer machines, one with Linux, and one with Windows. On
> the Windows machine, when I clone sources with git, everything works well.
>
> However, when I then use rsync to copy changes from the Linux machine to
> Windows, the file permissions change on all files! In turn, git complains
> about a new executable permission. And chmod fails to restore the previous
> state.
>
> Currently, the only way I found to restore a useful state, is to remove
> the whole directory, and clone again from git!
>
>
> Here are the details:
> I'm using rsync options --verbose --recursive --delete which in my eyes
> should not modify permissions. I clone with rsync over the already existing,
> unchanged files from git, so there should be anyways no need for rsync to
> re-transfer or modify the files.
>
> The directory in question is a subfolder on the C: drive, which is an
> NTFS-formatted NVMe. I created the parent folder as a normal user, and did
> not apply any special permissions. In fstab, I leave default Cygwin options.
>
> rsync is version 3.3.0, Cygwin is version 3.5.5-1.
>
> From acl checks, it seems that rsync would modify only one of the ACLs.
> The second ACL before is "COMPANY\User:(R,W,D,WDAC,WO)", and after running
> rsync is "COMPANY\User:(F)". I'm not sure what this means, but even less
> I understand why rsync performs this change?
>
>
> Here are the detailed permissions *before* running rsync from getfacl and
> icacls:
>
> # file: CHANGELOG.md
> # owner: COMPANY+User
> # group: COMPANY+User
> user::rwx
> group::r-x #effective:r--
> group:Authenticated Users:rwx #effective:rw-
> group:SYSTEM:rwx #effective:rw-
> group:Administrators:rwx #effective:rw-
> group:Users:r-x #effective:r--
> mask::rw-
> other::r--
>
> CHANGELOG.md NULL SID:(DENY)(Rc,WEA,X,DC)
> COMPANY\User:(R,W,D,WDAC,WO)
> COMPANY\User:(DENY)(X)
> NT AUTHORITY\Authenticated Users:(DENY)(X)
> NT AUTHORITY\SYSTEM:(DENY)(X)
> BUILTIN\Administrators:(DENY)(X)
> BUILTIN\Users:(DENY)(X)
> COMPANY\User:(RX)
> NT AUTHORITY\Authenticated Users:(RX,W)
> NT AUTHORITY\SYSTEM:(RX,W)
> BUILTIN\Administrators:(RX,W)
> BUILTIN\Users:(RX)
> Everyone:(R)
>
>
> After running rsync, the permissions from getfacl and icacls are:
>
> # file: CHANGELOG.md
> # owner: COMPANY+User
> # group: COMPANY+User
> user::rwx
> group::r-x #effective:r--
> group:Authenticated Users:rwx #effective:rw-
> group:SYSTEM:rwx #effective:rw-
> group:Administrators:rwx #effective:rw-
> group:Users:r-x #effective:r--
> mask::rw-
> other::r--
>
> CHANGELOG.md NULL SID:(DENY)(Rc,WEA,X,DC)
> COMPANY\User:(F)
> COMPANY\User:(DENY)(X)
> NT AUTHORITY\Authenticated Users:(DENY)(X)
> NT AUTHORITY\SYSTEM:(DENY)(X)
> BUILTIN\Administrators:(DENY)(X)
> BUILTIN\Users:(DENY)(X)
> COMPANY\User:(RX)
> NT AUTHORITY\Authenticated Users:(RX,W)
> NT AUTHORITY\SYSTEM:(RX,W)
> BUILTIN\Administrators:(RX,W)
> BUILTIN\Users:(RX)
> Everyone:(R)
>
> All the best,
>
> Mario Emmenlauer
Have you tried using git instead of rsync? 'man git'
$ git remote add windows user AT winbox-name-or-ip:path/to/gitrepo
$ git push windows feature-branch
$ git fetch windows
Cheers, Glenn
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