Add VERSION for 0.8.3

Ignore files in the repo with invalid names

.github/ISSUE_TEMPLATE.md

@@ -1,14 +1,28 @@
 <!--
-NOTE: Not filling out the issue template needs a good reason, otherwise it may
-take a lot longer to find the problem! Please take the time to help us
-debugging the problem by collecting information, even if it seems irrelevant to
-you. Thanks!
 
-If you have a question, the forum at https://discourse.restic.net is a better place.
-Please do not create issues for usage or documentation questions! We're using
-the GitHub issue tracker mainly for tracking bugs and feature requests.
+Welcome! - We kindly ask that you:
+
+  1. Fill out the issue template below - not doing so needs a good reason.
+  2. Use the forum if you have a question rather than a bug or feature request.
+
+The forum is at: https://forum.restic.net
+
+NOTE: Not filling out the issue template needs a good reason, as otherwise it
+may take a lot longer to find the problem, not to mention it can take up a lot
+more time which can otherwise be spent on development. Please also take the
+time to help us debug the issue by collecting relevant information, even if
+it doesn't seem to be relevant to you. Thanks!
+
+The forum is a better place for questions about restic or general suggestions
+and topics, e.g. usage or documentation questions! This issue tracker is mainly
+for tracking bugs and feature requests directly relating to the development of
+the software itself, rather than the project.
+
+Thanks for understanding, and for contributing to the project!
+
 -->
 
+
 ## Output of `restic version`
 
 
@@ -24,10 +38,10 @@ This section should include at least:
    information to diagnose the problem!
 -->
 
-
 ## What backend/server/service did you use to store the repository?
 
 
+
 ## Expected behavior
 
 <!--
@@ -48,12 +62,14 @@ The more time you spend describing an easy way to reproduce the behavior (if
 this is possible), the easier it is for the project developers to fix it!
 -->
 
-
 ## Do you have any idea what may have caused this?
 
 
+
 ## Do you have an idea how to solve the issue?
 
+
+
 ## Did restic help you or made you happy in any way?
 
 <!--

.github/PULL_REQUEST_TEMPLATE.md

@@ -25,7 +25,7 @@ Link issues and relevant forum posts here.
 - [ ] I have read the [Contribution Guidelines](https://github.com/restic/restic/blob/master/CONTRIBUTING.md#providing-patches)
 - [ ] I have added tests for all changes in this PR
 - [ ] I have added documentation for the changes (in the manual)
-- [ ] There's an entry in the `CHANGELOG.md` file that describe the changes for our users
+- [ ] There's a new file in a subdir of `changelog/x.y.z` that describe the changes for our users (template [here](https://github.com/restic/restic/blob/master/changelog/changelog-entry.tmpl))
 - [ ] I have run `gofmt` on the code in all commits
 - [ ] All commit messages are formatted in the same style as [the other commits in the repo](https://github.com/restic/restic/blob/master/CONTRIBUTING.md#git-commits)
 - [ ] I'm done, this Pull Request is ready for review

.travis.yml

@@ -2,8 +2,9 @@ language: go
 sudo: false
 
 go:
-  - 1.8.x
-  - 1.9.x
+  - "1.8.x"
+  - "1.9.x"
+  - "1.10"
 
 os:
   - linux
@@ -16,12 +17,14 @@ env:
 matrix:
   exclude:
     - os: osx
-      go: 1.8.x
+      go: "1.8.x"
+    - os: osx
+      go: "1.9.x"
     - os: linux
-      go: 1.9.x
+      go: "1.10"
   include:
     - os: linux
-      go: 1.9.x
+      go: "1.10"
       sudo: true
       env:
         RESTIC_TEST_FUSE=1

CHANGELOG.md

@@ -1,4 +1,262 @@
-Changelog for restic 0.8.1 (UNRELEASED)
+Changelog for restic 0.8.3 (2018-02-26)
+=======================================
+
+The following sections list the changes in restic 0.8.3 relevant to
+restic users. The changes are ordered by importance.
+
+Summary
+-------
+
+ * Fix #1633: Fixed unexpected 'pack file cannot be listed' error
+ * Fix #1641: Ignore files with invalid names in the repo
+ * Fix #1638: Handle errors listing files in the backend
+ * Enh #1497: Add --read-data-subset flag to check command
+ * Enh #1560: Retry all repository file download errors
+ * Enh #1623: Don't check for presence of files in the backend before writing
+ * Enh #1634: Upgrade B2 client library, reduce HTTP requests
+
+Details
+-------
+
+ * Bugfix #1633: Fixed unexpected 'pack file cannot be listed' error
+
+   Due to a regression introduced in 0.8.2, the `rebuild-index` and `prune` commands failed to
+   read pack files with size of 587, 588, 589 or 590 bytes.
+
+   https://github.com/restic/restic/issues/1633
+   https://github.com/restic/restic/pull/1635
+
+ * Bugfix #1641: Ignore files with invalid names in the repo
+
+   The release 0.8.2 introduced a bug: when restic encounters files in the repo which do not have a
+   valid name, it tries to load a file with a name of lots of zeroes instead of ignoring it. This is now
+   resolved, invalid file names are just ignored.
+
+   https://github.com/restic/restic/issues/1641
+   https://github.com/restic/restic/pull/1643
+
+ * Bugfix #1638: Handle errors listing files in the backend
+
+   A user reported in the forum that restic completes a backup although a concurrent `prune`
+   operation was running. A few error messages were printed, but the backup was attempted and
+   completed successfully. No error code was returned.
+
+   This should not happen: The repository is exclusively locked during `prune`, so when `restic
+   backup` is run in parallel, it should abort and return an error code instead.
+
+   It was found that the bug was in the code introduced only recently, which retries a List()
+   operation on the backend should that fail. It is now corrected.
+
+   https://github.com/restic/restic/pull/1638
+
+ * Enhancement #1497: Add --read-data-subset flag to check command
+
+   This change introduces ability to check integrity of a subset of repository data packs. This
+   can be used to spread integrity check of larger repositories over a period of time.
+
+   https://github.com/restic/restic/issues/1497
+   https://github.com/restic/restic/pull/1556
+
+ * Enhancement #1560: Retry all repository file download errors
+
+   Restic will now retry failed downloads, similar to other operations.
+
+   https://github.com/restic/restic/pull/1560
+
+ * Enhancement #1623: Don't check for presence of files in the backend before writing
+
+   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, so we've relaxed this requeriment, which saves one additional HTTP
+   request per newly added file.
+
+   https://github.com/restic/restic/pull/1623
+
+ * Enhancement #1634: Upgrade B2 client library, reduce HTTP requests
+
+   We've upgraded the B2 client library restic uses to access BackBlaze B2. This reduces the
+   number of HTTP requests needed to upload a new file from two to one, which should improve
+   throughput to B2.
+
+   https://github.com/restic/restic/pull/1634
+
+
+Changelog for restic 0.8.2 (2018-02-17)
+=======================================
+
+The following sections list the changes in restic 0.8.2 relevant to
+restic users. The changes are ordered by importance.
+
+Summary
+-------
+
+ * Fix #1506: Limit bandwith at the http.RoundTripper for HTTP based backends
+ * Fix #1512: Restore directory permissions as the last step
+ * Fix #1528: Correctly create missing subdirs in data/
+ * Fix #1590: Strip spaces for lines read via --files-from
+ * Fix #1589: Complete intermediate index upload
+ * Fix #1594: Google Cloud Storage: Use generic HTTP transport
+ * Fix #1595: Backup: Remove bandwidth display
+ * Enh #1522: Add support for TLS client certificate authentication
+ * Enh #1541: Reduce number of remote requests during repository check
+ * Enh #1567: Reduce number of backend requests for rebuild-index and prune
+ * Enh #1507: Only reload snapshots once per minute for fuse mount
+ * Enh #1538: Reduce memory allocations for querying the index
+ * Enh #1549: Speed up querying across indices and scanning existing files
+ * Enh #1554: Fuse/mount: Correctly handle EOF, add template option
+ * Enh #1564: Don't terminate ssh on SIGINT
+ * Enh #1579: Retry Backend.List() in case of errors
+ * Enh #1584: Limit index file size
+
+Details
+-------
+
+ * Bugfix #1506: Limit bandwith at the http.RoundTripper for HTTP based backends
+
+   https://github.com/restic/restic/issues/1506
+   https://github.com/restic/restic/pull/1511
+
+ * Bugfix #1512: Restore directory permissions as the last step
+
+   This change allows restoring into directories that were not writable during backup. Before,
+   restic created the directory, set the read-only mode and then failed to create files in the
+   directory. This change now restores the directory (with its permissions) as the very last
+   step.
+
+   https://github.com/restic/restic/issues/1512
+   https://github.com/restic/restic/pull/1536
+
+ * Bugfix #1528: Correctly create missing subdirs in data/
+
+   https://github.com/restic/restic/issues/1528
+   https://github.com/restic/restic/pull/1529
+
+ * Bugfix #1590: Strip spaces for lines read via --files-from
+
+   Leading and trailing spaces in lines read via `--files-from` are now stripped, so it behaves
+   the same as with lines read via `--exclude-file`.
+
+   https://github.com/restic/restic/issues/1590
+   https://github.com/restic/restic/pull/1613
+
+ * Bugfix #1589: Complete intermediate index upload
+
+   After a user posted a comprehensive report of what he observed, we were able to find a bug and
+   correct it: During backup, restic uploads so-called "intermediate" index files. When the
+   backup finishes during a transfer of such an intermediate index, the upload is cancelled, but
+   the backup is finished without an error. This leads to an inconsistent state, where the
+   snapshot references data that is contained in the repo, but is not referenced in any index.
+
+   The situation can be resolved by building a new index with `rebuild-index`, but looks very
+   confusing at first. Since all the data got uploaded to the repo successfully, there was no risk
+   of data loss, just minor inconvenience for our users.
+
+   https://github.com/restic/restic/pull/1589
+
+ * Bugfix #1594: Google Cloud Storage: Use generic HTTP transport
+
+   It was discovered that the Google Cloud Storage backend did not use the generic HTTP transport,
+   so things such as bandwidth limiting with `--limit-upload` did not work. This is resolved now.
+
+   https://github.com/restic/restic/pull/1594
+
+ * Bugfix #1595: Backup: Remove bandwidth display
+
+   This commit removes the bandwidth displayed during backup process. It is misleading and
+   seldomly correct, because it's neither the "read bandwidth" (only for the very first backup)
+   nor the "upload bandwidth". Many users are confused about (and rightly so), c.f. #1581, #1033,
+   #1591
+
+   We'll eventually replace this display with something more relevant when the new archiver code
+   is ready.
+
+   https://github.com/restic/restic/pull/1595
+
+ * Enhancement #1522: Add support for TLS client certificate authentication
+
+   Support has been added for using a TLS client certificate for authentication to HTTP based
+   backend. A file containing the PEM encoded private key and certificate can be set using the
+   `--tls-client-cert` option.
+
+   https://github.com/restic/restic/issues/1522
+   https://github.com/restic/restic/pull/1524
+
+ * Enhancement #1541: Reduce number of remote requests during repository check
+
+   This change eliminates redundant remote repository calls and significantly improves
+   repository check time.
+
+   https://github.com/restic/restic/issues/1541
+   https://github.com/restic/restic/pull/1548
+
+ * Enhancement #1567: Reduce number of backend requests for rebuild-index and prune
+
+   We've found a way to reduce then number of backend requests for the `rebuild-index` and `prune`
+   operations. This significantly speeds up the operations for high-latency backends.
+
+   https://github.com/restic/restic/issues/1567
+   https://github.com/restic/restic/pull/1574
+   https://github.com/restic/restic/pull/1575
+
+ * Enhancement #1507: Only reload snapshots once per minute for fuse mount
+
+   https://github.com/restic/restic/pull/1507
+
+ * Enhancement #1538: Reduce memory allocations for querying the index
+
+   This change reduces the internal memory allocations when the index data structures in memory
+   are queried if a blob (part of a file) already exists in the repo. It should speed up backup a bit,
+   and maybe even reduce RAM usage.
+
+   https://github.com/restic/restic/pull/1538
+
+ * Enhancement #1549: Speed up querying across indices and scanning existing files
+
+   This change increases the whenever a blob (part of a file) is searched for in a restic
+   repository. This will reduce cpu usage some when backing up files already backed up by restic.
+   Cpu usage is further decreased when scanning files.
+
+   https://github.com/restic/restic/pull/1549
+
+ * Enhancement #1554: Fuse/mount: Correctly handle EOF, add template option
+
+   We've added the `--snapshot-template` string, which can be used to specify a template for a
+   snapshot directory. In addition, accessing data after the end of a file via the fuse mount is now
+   handled correctly.
+
+   https://github.com/restic/restic/pull/1554
+
+ * Enhancement #1564: Don't terminate ssh on SIGINT
+
+   We've reworked the code which runs the `ssh` login for the sftp backend so that it can prompt for a
+   password (if needed) but does not exit when the user presses CTRL+C (SIGINT) e.g. during
+   backup. This allows restic to properly shut down when it receives SIGINT and remove the lock
+   file from the repo, afterwards exiting the `ssh` process.
+
+   https://github.com/restic/restic/pull/1564
+   https://github.com/restic/restic/pull/1588
+
+ * Enhancement #1579: Retry Backend.List() in case of errors
+
+   https://github.com/restic/restic/pull/1579
+
+ * Enhancement #1584: Limit index file size
+
+   Before, restic would create a single new index file on `prune` or `rebuild-index`, this may
+   lead to memory problems when this huge index is created and loaded again. We're now limiting the
+   size of the index file, and split newly created index files into several smaller ones. This
+   allows restic to be more memory-efficient.
+
+   https://github.com/restic/restic/issues/1412
+   https://github.com/restic/restic/issues/979
+   https://github.com/restic/restic/issues/526
+   https://github.com/restic/restic/pull/1584
+
+
+Changelog for restic 0.8.1 (2017-12-27)
 =======================================
 
 The following sections list the changes in restic 0.8.1 relevant to
@@ -9,7 +267,7 @@ Summary
 
  * Fix #1457: Improve s3 backend with DigitalOcean Spaces
  * Fix #1454: Correct cache dir location for Windows and Darwin
- * Fix #1457: Disable handling SIGPIPE
+ * Fix #1459: Disable handling SIGPIPE
  * Chg #1452: Do not save atime by default
  * Enh #1436: Add code to detect old cache directories
  * Enh #1439: Improve cancellation logic
@@ -30,7 +288,7 @@ Details
 
    https://github.com/restic/restic/pull/1454
 
- * Bugfix #1457: Disable handling SIGPIPE
+ * Bugfix #1459: Disable handling SIGPIPE
 
    We've disabled handling SIGPIPE again. Turns out, writing to broken TCP connections also
    raised SIGPIPE, so restic exits on the first write to a broken connection. Instead, restic
@@ -87,7 +345,7 @@ Summary
  * Fix #1256: Re-enable workaround for S3 backend
  * Fix #1291: Reuse backend TCP connections to BackBlaze B2
  * Fix #1317: Run prune when `forget --prune` is called with just snapshot IDs
- * Fix #1292: Remove implicit path `/restic` for the s3 backend
+ * Fix #1437: Remove implicit path `/restic` for the s3 backend
  * Enh #1102: Add subdirectory `ids` to fuse mount
  * Enh #1114: Add `--cacert` to specify TLS certificates to check against
  * Enh #1216: Add upload/download limiting
@@ -96,11 +354,11 @@ Summary
  * Enh #1367: Allow comments in files read from via `--file-from`
  * Enh #448: Sftp backend prompts for password
  * Enh #510: Add `dump` command
- * Enh #29: Add local metadata cache
+ * Enh #1040: Add local metadata cache
  * Enh #1249: Add `latest` symlink in fuse mount
  * Enh #1269: Add `--compact` to `forget` command
  * Enh #1281: Google Cloud Storage backend needs less permissions
- * Enh #1303: Make `check` print `no errors found` explicitly
+ * Enh #1319: Make `check` print `no errors found` explicitly
  * Enh #1353: Retry failed backend requests
 
 Details
@@ -148,7 +406,7 @@ Details
 
    https://github.com/restic/restic/pull/1317
 
- * Bugfix #1292: Remove implicit path `/restic` for the s3 backend
+ * Bugfix #1437: Remove implicit path `/restic` for the s3 backend
 
    The s3 backend used the subdir `restic` within a bucket if no explicit path after the bucket name
    was specified. Since this version, restic does not use this default path any more. If you
@@ -226,7 +484,7 @@ Details
    https://github.com/restic/restic/issues/510
    https://github.com/restic/restic/pull/1346
 
- * Enhancement #29: Add local metadata cache
+ * Enhancement #1040: Add local metadata cache
 
    We've added a local cache for metadata so that restic doesn't need to load all metadata
    (snapshots, indexes, ...) from the repo each time it starts. By default the cache is active, but
@@ -270,7 +528,7 @@ Details
 
    https://github.com/restic/restic/pull/1281
 
- * Enhancement #1303: Make `check` print `no errors found` explicitly
+ * Enhancement #1319: Make `check` print `no errors found` explicitly
 
    The `check` command now explicetly prints `No errors were found` when no errors could be found.
 
@@ -326,9 +584,9 @@ Summary
  * Enh #1044: Improve `restore`, do not traverse/load excluded directories
  * Enh #1061: Add Dockerfile and official Docker image
  * Enh #1126: Use the standard Go git repository layout, use `dep` for vendoring
- * Enh #211: Add support for storing backups on Google Cloud Storage
- * Enh #1144: Properly report errors when reading files with exclude patterns.
- * Enh #609: Add support for storing backups on Microsoft Azure Blob Storage
+ * Enh #1134: Add support for storing backups on Google Cloud Storage
+ * Enh #1144: Properly report errors when reading files with exclude patterns
+ * Enh #1149: Add support for storing backups on Microsoft Azure Blob Storage
  * Enh #1196: Add `--group-by` to `forget` command for flexible grouping
  * Enh #1203: Print stats on all BSD systems when SIGINFO (ctrl+t) is received
  * Enh #1205: Allow specifying time/date for a backup with `--time`
@@ -409,17 +667,17 @@ Details
 
    https://github.com/restic/restic/pull/1126
 
- * Enhancement #211: Add support for storing backups on Google Cloud Storage
+ * Enhancement #1134: Add support for storing backups on Google Cloud Storage
 
    https://github.com/restic/restic/issues/211
    https://github.com/restic/restic/pull/1134
    https://github.com/restic/restic/pull/1052
 
- * Enhancement #1144: Properly report errors when reading files with exclude patterns.
+ * Enhancement #1144: Properly report errors when reading files with exclude patterns
 
    https://github.com/restic/restic/pull/1144
 
- * Enhancement #609: Add support for storing backups on Microsoft Azure Blob Storage
+ * Enhancement #1149: Add support for storing backups on Microsoft Azure Blob Storage
 
    The library we're using to access the service requires Go 1.8, so restic now needs at least Go
    1.8.
@@ -655,14 +913,14 @@ restic users. The changes are ordered by importance.
 Summary
 -------
 
- * Enh #953: Make `forget` consistent
- * Enh #965: Unify repository layout for all backends
+ * Enh #957: Make `forget` consistent
+ * Enh #966: Unify repository layout for all backends
  * Enh #962: Improve memory and runtime for the s3 backend
 
 Details
 -------
 
- * Enhancement #953: Make `forget` consistent
+ * Enhancement #957: Make `forget` consistent
 
    The `forget` command was corrected to be more consistent in which snapshots are to be
    forgotten. It is possible that the new code removes more snapshots than before, so please
@@ -671,7 +929,7 @@ Details
    https://github.com/restic/restic/issues/953
    https://github.com/restic/restic/pull/957
 
- * Enhancement #965: Unify repository layout for all backends
+ * Enhancement #966: Unify repository layout for all backends
 
    Up to now the s3 backend used a special repository layout. We've decided to unify the repository
    layout and implemented the default layout also for the s3 backend. For creating a new

CONTRIBUTING.md

@@ -120,7 +120,8 @@ down to the following steps:
 
  6. You will receive comments on your code and the feature or bug that they
     address. Maybe you need to rework some minor things, in this case push new
-    commits to the branch you created for the pull request, they will be
+    commits to the branch you created for the pull request (or amend the
+    existing commit, use common sense to decide which is better), they will be
     automatically added to the pull request.
 
  7. If your pull request changes anything that users should be aware of (a

Gopkg.lock

@@ -10,20 +10,20 @@
 [[projects]]
   name = "cloud.google.com/go"
   packages = ["compute/metadata"]
-  revision = "2d3a6656c17a60b0815b7e06ab0be04eacb6e613"
-  version = "v0.16.0"
+  revision = "767c40d6a2e058483c25fa193e963a22da17236d"
+  version = "v0.18.0"
 
 [[projects]]
   name = "github.com/Azure/azure-sdk-for-go"
   packages = ["storage"]
-  revision = "7692b0cef22674113fcf71cc17ac3ccc1a7fef48"
-  version = "v11.2.2-beta"
+  revision = "eae258195456be76b2ec9ad2ee2ab63cdda365d9"
+  version = "v12.2.0-beta"
 
 [[projects]]
   name = "github.com/Azure/go-autorest"
   packages = ["autorest","autorest/adal","autorest/azure","autorest/date"]
-  revision = "c67b24a8e30d876542a85022ebbdecf0e5a935e8"
-  version = "v9.4.1"
+  revision = "c2a68353555b68de3ee8455a4fd3e890a0ac6d99"
+  version = "v9.8.1"
 
 [[projects]]
   name = "github.com/cenkalti/backoff"
@@ -65,7 +65,7 @@
   branch = "master"
   name = "github.com/golang/protobuf"
   packages = ["proto"]
-  revision = "1e59b77b52bf8e4b449a57e6f79f21226d571845"
+  revision = "c65a0412e71e8b9b3bfd22925720d23c0f054237"
 
 [[projects]]
   name = "github.com/inconshreveable/mousetrap"
@@ -74,10 +74,10 @@
   version = "v1.0"
 
 [[projects]]
-  branch = "master"
   name = "github.com/juju/ratelimit"
   packages = ["."]
   revision = "59fac5042749a5afb9af70e813da1dd5474f0167"
+  version = "1.0.1"
 
 [[projects]]
   branch = "master"
@@ -88,26 +88,31 @@
 [[projects]]
   name = "github.com/kurin/blazer"
   packages = ["b2","base","internal/b2types","internal/blog"]
-  revision = "e269a1a17bb6aec278c06a57cb7e8f8d0d333e04"
-  version = "v0.2.1"
+  revision = "cd0304efa98725679cf68422cefa328d3d96f2f4"
+  version = "v0.3.0"
 
 [[projects]]
-  branch = "master"
-  name = "github.com/minio/go-homedir"
+  name = "github.com/marstr/guid"
   packages = ["."]
-  revision = "21304a94172ae3a09dee2cd86a12fb6f842138c7"
+  revision = "8bdf7d1a087ccc975cf37dd6507da50698fd19ca"
 
 [[projects]]
   name = "github.com/minio/minio-go"
   packages = [".","pkg/credentials","pkg/encrypt","pkg/policy","pkg/s3signer","pkg/s3utils","pkg/set"]
-  revision = "57a8ae886b49af6eb0d2c27c2d007ed2f71e1da5"
-  version = "4.0.3"
+  revision = "14f1d472d115bac5ca4804094aa87484a72ced61"
+  version = "4.0.6"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/mitchellh/go-homedir"
+  packages = ["."]
+  revision = "b8bc1bf767474819792c23f32d8286a45736f1c6"
 
 [[projects]]
   branch = "master"
   name = "github.com/ncw/swift"
   packages = ["."]
-  revision = "c95c6e5c2d1a3d37fc44c8c6dc9e231c7500667d"
+  revision = "ae9f0ea1605b9aa6434ed5c731ca35d83ba67c55"
 
 [[projects]]
   name = "github.com/pkg/errors"
@@ -124,8 +129,8 @@
 [[projects]]
   name = "github.com/pkg/sftp"
   packages = ["."]
-  revision = "98203f5a8333288eb3163b7c667d4260fe1333e9"
-  version = "1.0.0"
+  revision = "f6a9258a0f570c3a76681b897b6ded57cb0dfa88"
+  version = "1.2.0"
 
 [[projects]]
   name = "github.com/pkg/xattr"
@@ -146,16 +151,16 @@
   version = "v1.5"
 
 [[projects]]
-  name = "github.com/satori/uuid"
+  name = "github.com/satori/go.uuid"
   packages = ["."]
-  revision = "879c5887cd475cd7864858769793b2ceb0d44feb"
-  version = "v1.1.0"
+  revision = "f58768cc1a7a7e77a3bd49e98cdd21419399b6a3"
+  version = "v1.2.0"
 
 [[projects]]
   name = "github.com/sirupsen/logrus"
   packages = ["."]
-  revision = "f006c2ac4710855cf0f916dd6b77acf6b048dc6e"
-  version = "v1.0.3"
+  revision = "d682213848ed68c0a260ca37d6dd5ace8423f5ba"
+  version = "v1.0.4"
 
 [[projects]]
   name = "github.com/spf13/cobra"
@@ -172,32 +177,44 @@
 [[projects]]
   branch = "master"
   name = "golang.org/x/crypto"
-  packages = ["curve25519","ed25519","ed25519/internal/edwards25519","pbkdf2","poly1305","scrypt","ssh","ssh/terminal"]
-  revision = "94eea52f7b742c7cbe0b03b22f0c4c8631ece122"
+  packages = ["curve25519","ed25519","ed25519/internal/edwards25519","internal/chacha20","pbkdf2","poly1305","scrypt","ssh","ssh/terminal"]
+  revision = "3d37316aaa6bd9929127ac9a527abf408178ea7b"
 
 [[projects]]
   branch = "master"
   name = "golang.org/x/net"
-  packages = ["context","context/ctxhttp"]
-  revision = "a8b9294777976932365dabb6640cf1468d95c70f"
+  packages = ["context","context/ctxhttp","idna","lex/httplex"]
+  revision = "5ccada7d0a7ba9aeb5d3aca8d3501b4c2a509fec"
 
 [[projects]]
   branch = "master"
   name = "golang.org/x/oauth2"
   packages = [".","google","internal","jws","jwt"]
-  revision = "f95fa95eaa936d9d87489b15d1d18b97c1ba9c28"
+  revision = "b28fcf2b08a19742b43084fb40ab78ac6c3d8067"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/sync"
+  packages = ["errgroup"]
+  revision = "fd80eb99c8f653c847d294a001bdf2a3a6f768f5"
 
 [[projects]]
   branch = "master"
   name = "golang.org/x/sys"
   packages = ["unix","windows"]
-  revision = "8b4580aae2a0dd0c231a45d3ccb8434ff533b840"
+  revision = "af50095a40f9041b3b38960738837185c26e9419"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/text"
+  packages = ["collate","collate/build","internal/colltab","internal/gen","internal/tag","internal/triegen","internal/ucd","language","secure/bidirule","transform","unicode/bidi","unicode/cldr","unicode/norm","unicode/rangetable"]
+  revision = "e19ae1496984b1c655b8044a65c0300a3c878dd3"
 
 [[projects]]
   branch = "master"
   name = "google.golang.org/api"
   packages = ["gensupport","googleapi","googleapi/internal/uritemplates","storage/v1"]
-  revision = "3a1d936b7575b82197a1fea0632218dd07b1e65c"
+  revision = "65b0d8655182691ad23b4fac11e6f7b897d9b634"
 
 [[projects]]
   name = "google.golang.org/appengine"
@@ -209,11 +226,11 @@
   branch = "v2"
   name = "gopkg.in/yaml.v2"
   packages = ["."]
-  revision = "287cf08546ab5e7e37d55a84f7ed3fd1db036de5"
+  revision = "d670f9405373e636a5a2765eea47fac0c9bc91a4"
 
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "f0a207197cb502238ac87ca8e07b2640c02ec380a50b036e09ef87e40e31ca2d"
+  inputs-digest = "336ac5c261c174cac89f9a7102b493f08edfbd51fd61d1673d1d2ec4132d80ab"
   solver-name = "gps-cdcl"
   solver-version = 1

README.rst

@@ -102,7 +102,7 @@ News
 ----
 
 You can follow the restic project on Twitter `@resticbackup <https://twitter.com/resticbackup>`__ or by subscribing to
-the `development blog <https://restic.github.io/blog/>`__.
+the `development blog <https://restic.net/blog/>`__.
 
 License
 -------

VERSION

@@ -1 +1 @@
-0.8.1
+0.8.3

appveyor.yml

@@ -17,8 +17,8 @@ init:
 
 install:
   - rmdir c:\go /s /q
-  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.9.windows-amd64.msi
-  - msiexec /i go1.9.windows-amd64.msi /q
+  - appveyor DownloadFile https://dl.google.com/go/go1.10.windows-amd64.msi
+  - msiexec /i go1.10.windows-amd64.msi /q
   - go version
   - go env
   - appveyor DownloadFile http://sourceforge.netcologne.de/project/gnuwin32/tar/1.13-1/tar-1.13-1-bin.zip -FileName tar.zip

build.go

@@ -1,4 +1,33 @@
-// +build ignore
+// BSD 2-Clause License
+//
+// Copyright (c) 2016-2018, Alexander Neumann <alexander@bumpern.de>
+// All rights reserved.
+//
+// This file has been copied from the repository at:
+// https://github.com/fd0/build-go
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice, this
+//   list of conditions and the following disclaimer.
+//
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// +build ignore_build_go
 
 package main
 
@@ -11,9 +40,31 @@ import (
 	"path"
 	"path/filepath"
 	"runtime"
+	"strconv"
 	"strings"
 )
 
+// config contains the configuration for the program to build.
+var config = Config{
+	Name:      "restic",                              // name of the program executable and directory
+	Namespace: "github.com/restic/restic",            // subdir of GOPATH, e.g. "github.com/foo/bar"
+	Main:      "github.com/restic/restic/cmd/restic", // package name for the main package
+	Tests: []string{ // tests to run
+		"github.com/restic/restic/internal/...",
+		"github.com/restic/restic/cmd/...",
+	},
+	MinVersion: GoVersion{Major: 1, Minor: 8, Patch: 0}, // minimum Go version supported
+}
+
+// Config configures the build.
+type Config struct {
+	Name       string
+	Namespace  string
+	Main       string
+	Tests      []string
+	MinVersion GoVersion
+}
+
 var (
 	verbose    bool
 	keepGopath bool
@@ -21,20 +72,6 @@ var (
 	enableCGO  bool
 )
 
-var config = struct {
-	Name      string
-	Namespace string
-	Main      string
-	Tests     []string
-}{
-	Name:      "restic",                              // name of the program executable and directory
-	Namespace: "github.com/restic/restic",            // subdir of GOPATH, e.g. "github.com/foo/bar"
-	Main:      "github.com/restic/restic/cmd/restic", // package name for the main package
-	Tests: []string{ // tests to run
-		"github.com/restic/restic/internal/...",
-		"github.com/restic/restic/cmd/..."},
-}
-
 // specialDir returns true if the file begins with a special character ('.' or '_').
 func specialDir(name string) bool {
 	if name == "." {
@@ -137,7 +174,6 @@ func copyFile(dst, src string) error {
 	if err != nil {
 		return err
 	}
-	defer fsrc.Close()
 
 	if err = os.MkdirAll(filepath.Dir(dst), 0755); err != nil {
 		fmt.Printf("MkdirAll(%v)\n", filepath.Dir(dst))
@@ -148,17 +184,28 @@ func copyFile(dst, src string) error {
 	if err != nil {
 		return err
 	}
-	defer fdst.Close()
 
-	_, err = io.Copy(fdst, fsrc)
+	if _, err = io.Copy(fdst, fsrc); err != nil {
+		return err
+	}
+
+	if err == nil {
+		err = fsrc.Close()
+	}
+
+	if err == nil {
+		err = fdst.Close()
+	}
+
 	if err == nil {
 		err = os.Chmod(dst, fi.Mode())
 	}
+
 	if err == nil {
 		err = os.Chtimes(dst, fi.ModTime(), fi.ModTime())
 	}
 
-	return err
+	return nil
 }
 
 // die prints the message with fmt.Fprintf() to stderr and exits with an error
@@ -180,6 +227,7 @@ func showUsage(output io.Writer) {
 	fmt.Fprintf(output, "         --enable-cgo    use CGO to link against libc\n")
 	fmt.Fprintf(output, "         --goos value    set GOOS for cross-compilation\n")
 	fmt.Fprintf(output, "         --goarch value  set GOARCH for cross-compilation\n")
+	fmt.Fprintf(output, "         --goarm value  set GOARM for cross-compilation\n")
 }
 
 func verbosePrintf(message string, args ...interface{}) {
@@ -205,13 +253,16 @@ func cleanEnv() (env []string) {
 }
 
 // build runs "go build args..." with GOPATH set to gopath.
-func build(cwd, goos, goarch, gopath string, args ...string) error {
+func build(cwd, goos, goarch, goarm, gopath string, args ...string) error {
 	a := []string{"build"}
 	a = append(a, "-asmflags", fmt.Sprintf("-trimpath=%s", gopath))
 	a = append(a, "-gcflags", fmt.Sprintf("-trimpath=%s", gopath))
 	a = append(a, args...)
 	cmd := exec.Command("go", a...)
 	cmd.Env = append(cleanEnv(), "GOPATH="+gopath, "GOARCH="+goarch, "GOOS="+goos)
+	if goarm != "" {
+		cmd.Env = append(cmd.Env, "GOARM="+goarm)
+	}
 	if !enableCGO {
 		cmd.Env = append(cmd.Env, "CGO_ENABLED=0")
 	}
@@ -300,10 +351,80 @@ func (cs Constants) LDFlags() string {
 	return strings.Join(l, " ")
 }
 
+// GoVersion is the version of Go used to compile the project.
+type GoVersion struct {
+	Major int
+	Minor int
+	Patch int
+}
+
+// ParseGoVersion parses the Go version s. If s cannot be parsed, the returned GoVersion is null.
+func ParseGoVersion(s string) (v GoVersion) {
+	if !strings.HasPrefix(s, "go") {
+		return
+	}
+
+	s = s[2:]
+	data := strings.Split(s, ".")
+	if len(data) != 3 {
+		return
+	}
+
+	major, err := strconv.Atoi(data[0])
+	if err != nil {
+		return
+	}
+
+	minor, err := strconv.Atoi(data[1])
+	if err != nil {
+		return
+	}
+
+	patch, err := strconv.Atoi(data[2])
+	if err != nil {
+		return
+	}
+
+	v = GoVersion{
+		Major: major,
+		Minor: minor,
+		Patch: patch,
+	}
+	return
+}
+
+// AtLeast returns true if v is at least as new as other. If v is empty, true is returned.
+func (v GoVersion) AtLeast(other GoVersion) bool {
+	var empty GoVersion
+
+	// the empty version satisfies all versions
+	if v == empty {
+		return true
+	}
+
+	if v.Major < other.Major {
+		return false
+	}
+
+	if v.Minor < other.Minor {
+		return false
+	}
+
+	if v.Patch < other.Patch {
+		return false
+	}
+
+	return true
+}
+
+func (v GoVersion) String() string {
+	return fmt.Sprintf("Go %d.%d.%d", v.Major, v.Minor, v.Patch)
+}
+
 func main() {
-	ver := runtime.Version()
-	if strings.HasPrefix(ver, "go1") && ver < "go1.8" {
-		fmt.Fprintf(os.Stderr, "Go version %s detected, restic requires at least Go 1.8\n", ver)
+	ver := ParseGoVersion(runtime.Version())
+	if !ver.AtLeast(config.MinVersion) {
+		fmt.Fprintf(os.Stderr, "%s detected, this program requires at least %s\n", ver, config.MinVersion)
 		os.Exit(1)
 	}
 
@@ -314,6 +435,7 @@ func main() {
 
 	targetGOOS := runtime.GOOS
 	targetGOARCH := runtime.GOARCH
+	targetGOARM := ""
 
 	var outputFilename string
 
@@ -347,6 +469,9 @@ func main() {
 		case "--goarch":
 			skipNext = true
 			targetGOARCH = params[i+1]
+		case "--goarm":
+			skipNext = true
+			targetGOARM = params[i+1]
 		case "-h":
 			showUsage(os.Stdout)
 			return
@@ -431,7 +556,7 @@ func main() {
 		"-o", output, config.Main,
 	}
 
-	err = build(filepath.Join(gopath, "src"), targetGOOS, targetGOARCH, gopath, args...)
+	err = build(filepath.Join(gopath, "src"), targetGOOS, targetGOARCH, targetGOARM, gopath, args...)
 	if err != nil {
 		die("build failed: %v\n", err)
 	}

changelog/0.7.2_2017-09-13/pull-1144

@@ -1,3 +1,3 @@
-Enhancement: Properly report errors when reading files with exclude patterns.
+Enhancement: Properly report errors when reading files with exclude patterns
 
 https://github.com/restic/restic/pull/1144

changelog/0.8.1_2017-12-27/issue-1457

@@ -1,4 +1,4 @@
 Bugfix: Improve s3 backend with DigitalOcean Spaces
 
-https://github.com/restic/restic/pull/1459
 https://github.com/restic/restic/issues/1457
+https://github.com/restic/restic/pull/1459

changelog/0.8.2_2018-02-17/issue-1506

@@ -0,0 +1,4 @@
+Bugfix: Limit bandwith at the http.RoundTripper for HTTP based backends
+
+https://github.com/restic/restic/issues/1506
+https://github.com/restic/restic/pull/1511

changelog/0.8.2_2018-02-17/issue-1512

@@ -0,0 +1,9 @@
+Bugfix: Restore directory permissions as the last step
+
+This change allows restoring into directories that were not writable during
+backup. Before, restic created the directory, set the read-only mode and then
+failed to create files in the directory. This change now restores the directory
+(with its permissions) as the very last step.
+
+https://github.com/restic/restic/issues/1512
+https://github.com/restic/restic/pull/1536

changelog/0.8.2_2018-02-17/issue-1522

@@ -0,0 +1,8 @@
+Enhancement: Add support for TLS client certificate authentication
+
+Support has been added for using a TLS client certificate for authentication to
+HTTP based backend. A file containing the PEM encoded private key and
+certificate can be set using the `--tls-client-cert` option.
+
+https://github.com/restic/restic/issues/1522
+https://github.com/restic/restic/pull/1524

changelog/0.8.2_2018-02-17/issue-1528

@@ -0,0 +1,4 @@
+Bugfix: Correctly create missing subdirs in data/
+
+https://github.com/restic/restic/issues/1528
+https://github.com/restic/restic/pull/1529

changelog/0.8.2_2018-02-17/issue-1541

@@ -0,0 +1,7 @@
+Enhancement: Reduce number of remote requests during repository check
+
+This change eliminates redundant remote repository calls and significantly
+improves repository check time.
+
+https://github.com/restic/restic/issues/1541
+https://github.com/restic/restic/pull/1548

changelog/0.8.2_2018-02-17/issue-1567

@@ -0,0 +1,9 @@
+Enhancement: Reduce number of backend requests for rebuild-index and prune
+
+We've found a way to reduce then number of backend requests for the
+`rebuild-index` and `prune` operations. This significantly speeds up the
+operations for high-latency backends.
+
+https://github.com/restic/restic/issues/1567
+https://github.com/restic/restic/pull/1574
+https://github.com/restic/restic/pull/1575

changelog/0.8.2_2018-02-17/issue-1590

@@ -0,0 +1,7 @@
+Bugfix: Strip spaces for lines read via --files-from
+
+Leading and trailing spaces in lines read via `--files-from` are now stripped,
+so it behaves the same as with lines read via `--exclude-file`.
+
+https://github.com/restic/restic/issues/1590
+https://github.com/restic/restic/pull/1613

changelog/0.8.2_2018-02-17/pull-1507

@@ -0,0 +1,3 @@
+Enhancement: Only reload snapshots once per minute for fuse mount
+
+https://github.com/restic/restic/pull/1507

changelog/0.8.2_2018-02-17/pull-1538

@@ -0,0 +1,7 @@
+Enhancement: Reduce memory allocations for querying the index
+
+This change reduces the internal memory allocations when the index data
+structures in memory are queried if a blob (part of a file) already exists in
+the repo. It should speed up backup a bit, and maybe even reduce RAM usage.
+
+https://github.com/restic/restic/pull/1538

changelog/0.8.2_2018-02-17/pull-1549

@@ -0,0 +1,7 @@
+Enhancement: Speed up querying across indices and scanning existing files
+
+This change increases the whenever a blob (part of a file) is searched for in a
+restic repository.  This will reduce cpu usage some when backing up files already
+backed up by restic.  Cpu usage is further decreased when scanning files.
+
+https://github.com/restic/restic/pull/1549

changelog/0.8.2_2018-02-17/pull-1554

@@ -0,0 +1,7 @@
+Enhancement: fuse/mount: Correctly handle EOF, add template option
+
+We've added the `--snapshot-template` string, which can be used to specify a
+template for a snapshot directory. In addition, accessing data after the end of
+a file via the fuse mount is now handled correctly.
+
+https://github.com/restic/restic/pull/1554

changelog/0.8.2_2018-02-17/pull-1564

@@ -0,0 +1,10 @@
+Enhancement: Don't terminate ssh on SIGINT
+
+We've reworked the code which runs the `ssh` login for the sftp backend so that
+it can prompt for a password (if needed) but does not exit when the user
+presses CTRL+C (SIGINT) e.g. during backup. This allows restic to properly shut
+down when it receives SIGINT and remove the lock file from the repo, afterwards
+exiting the `ssh` process.
+
+https://github.com/restic/restic/pull/1564
+https://github.com/restic/restic/pull/1588

changelog/0.8.2_2018-02-17/pull-1579

@@ -0,0 +1,3 @@
+Enhancement: Retry Backend.List() in case of errors
+
+https://github.com/restic/restic/pull/1579

changelog/0.8.2_2018-02-17/pull-1584

@@ -0,0 +1,12 @@
+Enhancement: Limit index file size
+
+Before, restic would create a single new index file on `prune` or
+`rebuild-index`, this may lead to memory problems when this huge index is
+created and loaded again. We're now limiting the size of the index file, and
+split newly created index files into several smaller ones. This allows restic
+to be more memory-efficient.
+
+https://github.com/restic/restic/pull/1584
+https://github.com/restic/restic/issues/1412
+https://github.com/restic/restic/issues/979
+https://github.com/restic/restic/issues/526

changelog/0.8.2_2018-02-17/pull-1589

@@ -0,0 +1,17 @@
+Bugfix: Complete intermediate index upload
+
+After a user posted a comprehensive report of what he observed, we were able to
+find a bug and correct it: During backup, restic uploads so-called
+"intermediate" index files. When the backup finishes during a transfer of such
+an intermediate index, the upload is cancelled, but the backup is finished
+without an error. This leads to an inconsistent state, where the snapshot
+references data that is contained in the repo, but is not referenced in any
+index.
+
+The situation can be resolved by building a new index with `rebuild-index`, but
+looks very confusing at first. Since all the data got uploaded to the repo
+successfully, there was no risk of data loss, just minor inconvenience for our
+users.
+
+https://github.com/restic/restic/pull/1589
+https://forum.restic.net/t/error-loading-tree-check-prune-and-forget-gives-error-b2-backend/406

changelog/0.8.2_2018-02-17/pull-1594

@@ -0,0 +1,7 @@
+Bugfix: Google Cloud Storage: Use generic HTTP transport
+
+It was discovered that the Google Cloud Storage backend did not use the generic
+HTTP transport, so things such as bandwidth limiting with `--limit-upload` did
+not work. This is resolved now.
+
+https://github.com/restic/restic/pull/1594

changelog/0.8.2_2018-02-17/pull-1595

@@ -0,0 +1,11 @@
+Bugfix: backup: Remove bandwidth display
+
+This commit removes the bandwidth displayed during backup process. It is
+misleading and seldomly correct, because it's neither the "read
+bandwidth" (only for the very first backup) nor the "upload bandwidth".
+Many users are confused about (and rightly so), c.f. #1581, #1033, #1591
+
+We'll eventually replace this display with something more relevant when
+the new archiver code is ready.
+
+https://github.com/restic/restic/pull/1595

changelog/0.8.3_2018-02-26/issue-1497

@@ -0,0 +1,8 @@
+Enhancement: Add --read-data-subset flag to check command
+
+This change introduces ability to check integrity of a subset of repository 
+data packs. This can be used to spread integrity check of larger repositories
+over a period of time.
+
+https://github.com/restic/restic/issues/1497
+https://github.com/restic/restic/pull/1556

changelog/0.8.3_2018-02-26/issue-1633

@@ -0,0 +1,7 @@
+Bugfix: Fixed unexpected 'pack file cannot be listed' error
+
+Due to a regression introduced in 0.8.2, the `rebuild-index` and `prune`
+commands failed to read pack files with size of 587, 588, 589 or 590 bytes.
+
+https://github.com/restic/restic/issues/1633
+https://github.com/restic/restic/pull/1635

changelog/0.8.3_2018-02-26/issue-1641

@@ -0,0 +1,10 @@
+Bugfix: Ignore files with invalid names in the repo
+
+The release 0.8.2 introduced a bug: when restic encounters files in the repo
+which do not have a valid name, it tries to load a file with a name of lots of
+zeroes instead of ignoring it. This is now resolved, invalid file names are
+just ignored.
+
+https://github.com/restic/restic/issues/1641
+https://github.com/restic/restic/pull/1643
+https://forum.restic.net/t/help-fixing-repo-no-such-file/485/3

changelog/0.8.3_2018-02-26/pull-1560

@@ -0,0 +1,5 @@
+Enhancement: Retry all repository file download errors
+
+Restic will now retry failed downloads, similar to other operations.
+
+https://github.com/restic/restic/pull/1560

changelog/0.8.3_2018-02-26/pull-1623

@@ -0,0 +1,12 @@
+Enhancement: Don't check for presence of files in the backend before writing
+
+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, so we've relaxed this requeriment,
+which saves one additional HTTP request per newly added file.
+
+https://github.com/restic/restic/pull/1623

changelog/0.8.3_2018-02-26/pull-1634

@@ -0,0 +1,7 @@
+Enhancement: Upgrade B2 client library, reduce HTTP requests
+
+We've upgraded the B2 client library restic uses to access BackBlaze B2. This
+reduces the number of HTTP requests needed to upload a new file from two to
+one, which should improve throughput to B2.
+
+https://github.com/restic/restic/pull/1634

changelog/0.8.3_2018-02-26/pull-1638

@@ -0,0 +1,16 @@
+Bugfix: Handle errors listing files in the backend
+
+A user reported in the forum that restic completes a backup although a
+concurrent `prune` operation was running. A few error messages were printed,
+but the backup was attempted and completed successfully. No error code was
+returned.
+
+This should not happen: The repository is exclusively locked during `prune`, so
+when `restic backup` is run in parallel, it should abort and return an error
+code instead.
+
+It was found that the bug was in the code introduced only recently, which
+retries a List() operation on the backend should that fail. It is now corrected.
+
+https://github.com/restic/restic/pull/1638
+https://forum.restic.net/t/restic-backup-returns-0-exit-code-when-already-locked/484