Commit Graph

15 Commits

Author SHA1 Message Date
Alexander Neumann 465700595c azure: Support uploading large files
Closes #1822
2018-06-01 14:52:16 +02:00
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 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 981752ade0 Azure backend: limit http concurrency in Stat(), Test(), Remove()
as per discussion in PR #1399
2017-10-31 07:32:30 -04:00
Fabian Wickborn 69a6e622d0 Add REST backend option to use CA root certificate
Closes #1114.
2017-10-04 22:14:10 +02:00
Alexander Neumann 3b6a580b32 backend: Make pagination for List configurable 2017-09-18 12:01:54 +02:00
Alexander Neumann dd49e2b12d Azure: Fix List(), use pagination marker 2017-09-17 11:32:05 +02:00
Alexander Neumann c35518a865 Azure/GS: Remove ReadDir() 2017-09-17 11:05:30 +02:00
Alexander Neumann 072b7a014e azure: User internal errors package 2017-08-06 21:47:04 +02:00
Alexander Neumann 618ce115d7 Azure: Use default HTTP transport 2017-08-06 21:47:04 +02:00
Dipta Das 3a85b6b7c6 Add Azure Blob Storage as backend
Environment variables:
AZURE_ACCOUNT_NAME=storage-account-name
AZURE_ACCOUNT_KEY=storage-account-key

Environment variables for test:
RESTIC_TEST_AZURE_ACCOUNT_NAME=storage-account-name
RESTIC_TEST_AZURE_ACCOUNT_KEY=storage-account-key
RESTIC_TEST_AZURE_REPOSITORY=azure:restic-test-container

Init repository:
$ restic -r azure:container-name:/prefix/dir init
2017-08-06 21:47:04 +02:00