On Wednesday, May 30, 2018, Nick Coghlan <ncogh...@gmail.com> wrote: > On 30 May 2018 at 02:38, Guido van Rossum <gu...@python.org> wrote: > >> Honestly, despite the occasional use case(1), I'm not sure that this is a >> battery we need in the stdlib. Nobody seems too excited about writing the >> code, and when the operation is needed, shelling out to the system chown is >> not too onerous. (Ditto for chmod.) >> >> (1) Not even sure that a use case was shown -- it was just shown that the >> operation is not necessarily useless. >> > > My main use cases have been in installers and test suites, but those cases > have also been for Linux-specific code where shelling out to "chown -R" and > "chmod -R" was an entirely acceptable alternative. > > I think one of the other key points here is that "chown" and "chmod" > inherently don't map at all well to the Windows filesystem access control > model [1], so there's no new portability challenges arising from expecting > the chown and chmod commands to be available. > > Cheers, > Nick. > > [1] os.chown and shutil.chown don't exist at all there, and os.chmod only > supports setting a file to read-only - there isn't any access to user or > group permissions. >
Notably, Ansible and Salt don't haven't even tried to abstract Linux/BSD and Windows filesystem ACLs into a common API: https://github.com/ansible/ansible/blob/devel/lib/ansible/ modules/files/acl.py https://github.com/ansible/ansible/blob/devel/lib/ansible/ modules/windows/win_acl.py https://github.com/ansible/ansible/blob/devel/lib/ ansible/modules/windows/win_acl.ps1 https://github.com/saltstack/salt/blob/develop/salt/states/file.py https://github.com/saltstack/salt/blob/develop/salt/states/win_dacl.py https://github.com/saltstack/salt/blob/develop/salt/modules/win_dacl.py https://github.com/saltstack/salt/blob/develop/salt/utils/win_dacl.py https://github.com/saltstack/salt/blob/develop/salt/states/linux_acl.py https://github.com/saltstack/salt/blob/develop/salt/modules/linux_acl.py ... Looked these up and thought I'd share. >
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