in a setup where an rsync(+gnupg) remote is shared among different users of the same git-annex repository (ie, the people copying to there use different accounts on the rsync server), acls are not honored under some circumstances.
the error message reads as follows:
copy …filename… (to prometheus...) Reading passphrase from file descriptor 11 sending incremental file list rsync: recv_generator: mkdir "/home/shared/photos/encrypted_storage/9a6/0ff" failed: Permission denied (13) *** Skipping any contents from this failed directory *** 9a6/0ff/ rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1070) [sender=3.0.8] sent 185 bytes received 18 bytes 135.33 bytes/sec total size is 2119419 speedup is 10440.49 This could have failed because --fast is enabled. failed
the acl used in my particular case is:
# file: . # owner: chrysn # group: chrysn user::rwx group::rwx group:family:rwx mask::rwx other::r-x default:user::rwx default:group::rwx default:group:family:rwx default:mask::rwx default:other::r-x
sub-directories are observed to have diverging permissions, though:
# file: 794 # owner: chrysn # group: chrysn user::rwx group::rwx #effective:r-x group:family:rwx #effective:r-x mask::r-x other::r-x default:user::rwx default:group::rwx default:group:family:rwx default:mask::rwx default:other::r-x
something seems to apply the umask (default 022) and revoke group write access from the files, overruling the acl. this is not what a umask is normally used for, and smells of coreutils slavishly observing posix specs that don't consider all features -- the observed effect is exactly what's described there.
the git annex version used is 3.20121017 as in debian, the receiving site uses rsync 3.0.7; the affected directories come from a time when these very versions are known to have been used.
this is probably not a bug of git-annex alone, but affects its operation and might be solvable by invoking rsync differently.
(this is kind of a follow-up on "permission denied" in fsck on shared repo)