Commit Graph

17 Commits

Author SHA1 Message Date
Alexander Neumann 99f7fd74e3 backend: Improve Save()
As mentioned in issue [#1560](https://github.com/restic/restic/pull/1560#issuecomment-364689346)
this changes the signature for `backend.Save()`. It now takes a
parameter of interface type `RewindReader`, so that the backend
implementations or our `RetryBackend` middleware can reset the reader to
the beginning and then retry an upload operation.

The `RewindReader` interface also provides a `Length()` method, which is
used in the backend to get the size of the data to be saved. This
removes several ugly hacks we had to do to pull the size back out of the
`io.Reader` passed to `Save()` before. In the `s3` and `rest` backend
this is actively used.
2018-03-03 15:49:44 +01:00
Alexander Neumann 29da86b473 Merge pull request #1623 from restic/backend-relax-restrictions
backend: Relax requirement for new files
2018-02-18 12:56:52 +01:00
Alexander Neumann b5062959c8 backend: Relax requirement for new files
Before, all backend implementations were required to return an error if
the file that is to be written already exists in the backend. For most
backends, that means making a request (e.g. via HTTP) and returning an
error when the file already exists.

This is not accurate, the file could have been created between the HTTP
request testing for it, and when writing starts. In addition, apart from
the `config` file in the repo, all other file names have pseudo-random
names with a very very low probability of a collision. And even if a
file name is written again, the way the restic repo is structured this
just means that the same content is placed there again. Which is not a
problem, just not very efficient.

So, this commit relaxes the requirement to return an error when the file
in the backend already exists, which allows reducing the number of API
requests and thereby the latency for remote backends.
2018-02-17 22:39:18 +01:00
Igor Fedorenko d58ae43317 Reworked Backend.Load API to retry errors during ongoing download
Signed-off-by: Igor Fedorenko <igor@ifedorenko.com>
2018-02-16 21:12:14 -05:00
Alexander Neumann c34db983d8 Read TLS client cert and key from the same file 2018-01-27 14:02:01 +01:00
Bryce Chidester e805b968b1 Support for TLS client certificate authentication
This adds --tls-client-cert and --tls-client-key parameters and enables use
of that certificate/key pair when connecting to https servers.
2018-01-27 13:18:22 +01:00
Alexander Neumann e9ea268847 Change List() implementation for all backends 2018-01-21 21:15:09 +01:00
Alexander Neumann 7d8765a937 backend: Only return top-level files for most dirs
Fixes #1478
2017-12-14 19:14:16 +01:00
George Armhold 0268d0e7d6 swift backend: limit http concurrency in Save(), Stat(), Test(), Remove(),
List().

move comment regarding problematic List() backend api (it's s3's ListObjects
that has a problem, NOT swift's ObjectsWalk).

As per discussion in PR #1399.
2017-11-02 18:29:32 -04:00
George Armhold 8515d093e0 swift backend: fix premature release of semaphore in Load() & document
concurrency issue in List().

refactor wrapReader from b2 -> semaphore so it can be used elsewhere.

As per discussion in PR #1399.
2017-11-02 12:38:17 -04:00
Alexander Neumann e56370eb5b Remove Deleter interface 2017-10-14 16:04:29 +02:00
Fabian Wickborn 69a6e622d0 Add REST backend option to use CA root certificate
Closes #1114.
2017-10-04 22:14:10 +02:00
Herbert 3473c3f7b6 Remove all dot-imports 2017-10-02 15:06:39 +02:00
Alexander Neumann 2a1633621b Ignore "not exist" errors for swift backend tests 2017-09-16 13:59:55 +02:00
Alexander Neumann 23c903074c Move restic package to internal/restic 2017-07-24 17:43:32 +02:00
Alexander Neumann 6caeff2408 Run goimports 2017-07-23 14:21:03 +02:00
Alexander Neumann 83d1a46526 Moves files 2017-07-23 14:19:13 +02:00