When key-based retrieval from a S3 remote with exporttree=yes
appendonly=yes fails, fall back to trying to retrieve from the exported
tree. This allows downloads of files that were exported to such a remote
before versioning was enabled on it.
This is useful at least for a transition for users who got into that
situation, so they can download content from their S3 remote. May want to
remove this in the future though, since normally trying to download the
second time is only extra work.
This commit was sponsored by Brock Spratlen on Patreon.
Somehow forgot about the case where the current export db tree is the
same one in the export log, and it warned about an export conflict when
getting a file in that situation. Of course it's no conflict at all!
This commit was sponsored by Jochen Bartl on Patreon.
Like the earlier fixed one in Command.Export, it occurred when the same
tree was exported by multiple clones. Previous fix was incomplete since
several other places looked at the list of exported trees to detect when
there was an export conflict. Added a single unified function to avoid
missing any places it needed to be fixed.
This commit was sponsored by mo on Patreon.
Because when git-annex lacks S3 version IDs for files stored in the bucket,
deleting them would cause data loss.
Also because git-annex is not able to download unversioned objects from a bucket
when versioning=yes.
This also prevents setting versioning=no. While that would perhaps be
possible to do safely, it would add complexity, and would mean that if
the user accidentially did enableremote versioning=no, they would not be
able to undo it.
This commit was sponsored by Trenton Cronholm on Patreon.
Needs not yet released version 0.22 of aws library; with older versions
asks the user to configure the bucket versioning themselves.
Note that S3 endpoints that don't support versioning will cause putBucketVersioning
to throw an exception, so initremote will fail.
This commit was sponsored by Jake Vosloo on Patreon.
