Add version for 0.13.1

Fixes #3687. Uses the cast suggested by @MichaelEischer, except that the
contant isn't cast along, because it's untyped and will be converted by
the compiler as necessary.

.dockerignore

@@ -0,0 +1,12 @@
+# Folders
+.git/
+.github/
+changelog/
+doc/
+docker/
+helpers/
+
+# Files
+.gitignore
+.golangci.yml
+*.md

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,13 +1,7 @@
-
-
 <!--
 Thank you very much for contributing code or documentation to restic! Please
 fill out the following questions to make it easier for us to review your
 changes.
-
-You do not need to check all the boxes below all at once, feel free to take
-your time and add more commits. If you're done and ready for review, please
-check the last box.
 -->
 
 What does this PR change? What problem does it solve?
@@ -17,8 +11,8 @@ What does this PR change? What problem does it solve?
 Describe the changes and their purpose here, as detailed as needed.
 -->
 
-Was the change discussed in an issue or in the forum before?
-------------------------------------------------------------
+Was the change previously discussed in an issue or on the forum?
+----------------------------------------------------------------
 
 <!--
 Link issues and relevant forum posts here.
@@ -30,11 +24,17 @@ is closed automatically when this PR is merged.
 Checklist
 ---------
 
-- [ ] I have read the [Contribution Guidelines](https://github.com/restic/restic/blob/master/CONTRIBUTING.md#providing-patches)
-- [ ] I have enabled [maintainer edits for this PR](https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/allowing-changes-to-a-pull-request-branch-created-from-a-fork)
-- [ ] I have added tests for all changes in this PR
-- [ ] I have added documentation for the changes (in the manual)
-- [ ] There's a new file in `changelog/unreleased/` that describes the changes for our users (template [here](https://github.com/restic/restic/blob/master/changelog/TEMPLATE))
-- [ ] 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
+<!--
+You do not need to check all the boxes below all at once. Feel free to take
+your time and add more commits. If you're done and ready for review, please
+check the last box. Enable a checkbox by replacing [ ] with [x].
+-->
+
+- [ ] I have read the [contribution guidelines](https://github.com/restic/restic/blob/master/CONTRIBUTING.md#providing-patches).
+- [ ] I have [enabled maintainer edits](https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/allowing-changes-to-a-pull-request-branch-created-from-a-fork).
+- [ ] I have added tests for all code changes.
+- [ ] I have added documentation for relevant changes (in the manual).
+- [ ] There's a new file in `changelog/unreleased/` that describes the changes for our users (see [template](https://github.com/restic/restic/blob/master/changelog/TEMPLATE)).
+- [ ] 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.

.github/workflows/tests.yml

@@ -0,0 +1,325 @@
+name: test
+on:
+  # run tests on push to master, but not when other branches are pushed to
+  push:
+    branches:
+      - master
+
+  # run tests for all pull requests
+  pull_request:
+
+env:
+  latest_go: "1.18.x"
+  GO111MODULE: on
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        # list of jobs to run:
+        include:
+          - job_name: Windows
+            go: 1.18.x
+            os: windows-latest
+            install_verb: install
+
+          - job_name: macOS
+            go: 1.18.x
+            os: macOS-latest
+            test_fuse: false
+            install_verb: install
+
+          - job_name: Linux
+            go: 1.18.x
+            os: ubuntu-latest
+            test_cloud_backends: true
+            test_fuse: true
+            check_changelog: true
+            install_verb: install
+
+          - job_name: Linux
+            go: 1.17.x
+            os: ubuntu-latest
+            test_fuse: true
+            install_verb: install
+
+          - job_name: Linux
+            go: 1.16.x
+            os: ubuntu-latest
+            test_fuse: true
+            install_verb: get
+
+          - job_name: Linux
+            go: 1.15.x
+            os: ubuntu-latest
+            test_fuse: true
+            install_verb: get
+
+          - job_name: Linux
+            go: 1.14.x
+            os: ubuntu-latest
+            test_fuse: true
+            install_verb: get
+
+    name: ${{ matrix.job_name }} Go ${{ matrix.go }}
+    runs-on: ${{ matrix.os }}
+
+    env:
+      GOPROXY: https://proxy.golang.org
+
+    steps:
+      - name: Set up Go ${{ matrix.go }}
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go }}
+
+      - name: Get programs (Linux/macOS)
+        run: |
+          echo "build Go tools"
+          go ${{ matrix.install_verb }} github.com/restic/rest-server/cmd/rest-server@latest
+
+          echo "install minio server"
+          mkdir $HOME/bin
+          if [ "$RUNNER_OS" == "macOS" ]; then
+            wget --no-verbose -O $HOME/bin/minio https://dl.minio.io/server/minio/release/darwin-amd64/minio
+          else
+            wget --no-verbose -O $HOME/bin/minio https://dl.minio.io/server/minio/release/linux-amd64/minio
+          fi
+          chmod 755 $HOME/bin/minio
+
+          echo "install rclone"
+          if [ "$RUNNER_OS" == "macOS" ]; then
+            wget --no-verbose -O rclone.zip https://downloads.rclone.org/rclone-current-osx-amd64.zip
+          else
+            wget --no-verbose -O rclone.zip https://downloads.rclone.org/rclone-current-linux-amd64.zip
+          fi
+          unzip rclone.zip
+          cp rclone*/rclone $HOME/bin
+          chmod 755 $HOME/bin/rclone
+          rm -rf rclone*
+
+          # add $HOME/bin to path ($GOBIN was already added to the path by setup-go@v2)
+          echo $HOME/bin >> $GITHUB_PATH
+        if: matrix.os == 'ubuntu-latest' || matrix.os == 'macOS-latest'
+
+      - name: Get programs (Windows)
+        shell: powershell
+        run: |
+          $ProgressPreference = 'SilentlyContinue'
+
+          echo "build Go tools"
+          go ${{ matrix.install_verb }} github.com/restic/rest-server/...
+
+          echo "install minio server"
+          mkdir $Env:USERPROFILE/bin
+          Invoke-WebRequest https://dl.minio.io/server/minio/release/windows-amd64/minio.exe -OutFile $Env:USERPROFILE/bin/minio.exe
+
+          echo "install rclone"
+          Invoke-WebRequest https://downloads.rclone.org/rclone-current-windows-amd64.zip -OutFile rclone.zip
+
+          unzip rclone.zip
+          copy rclone*/rclone.exe $Env:USERPROFILE/bin
+
+          # add $USERPROFILE/bin to path ($GOBIN was already added to the path by setup-go@v2)
+          echo $Env:USERPROFILE\bin >> $Env:GITHUB_PATH
+
+          echo "install tar"
+          cd $env:USERPROFILE
+          mkdir tar
+          cd tar
+
+          # install exactly these versions of tar and the libraries, other combinations might not work!
+
+          Invoke-WebRequest https://github.com/restic/test-assets/raw/master/tar-1.13-1-bin.zip -OutFile tar.zip
+          unzip tar.zip
+          Invoke-WebRequest https://github.com/restic/test-assets/raw/master/libintl-0.11.5-2-bin.zip -OutFile libintl.zip
+          unzip libintl.zip
+          Invoke-WebRequest https://github.com/restic/test-assets/raw/master/libiconv-1.8-1-bin.zip -OutFile libiconv.zip
+          unzip libiconv.zip
+
+          # add $USERPROFILE/tar/bin to path
+          echo $Env:USERPROFILE\tar\bin >> $Env:GITHUB_PATH
+        if: matrix.os == 'windows-latest'
+
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Build with build.go
+        run: |
+          go run build.go
+
+      - name: Run local Tests
+        env:
+          RESTIC_TEST_FUSE: ${{ matrix.test_fuse }}
+        run: |
+          go test -cover ./...
+
+      - name: Test cloud backends
+        env:
+          RESTIC_TEST_S3_KEY: ${{ secrets.RESTIC_TEST_S3_KEY }}
+          RESTIC_TEST_S3_SECRET: ${{ secrets.RESTIC_TEST_S3_SECRET }}
+          RESTIC_TEST_S3_REPOSITORY: ${{ secrets.RESTIC_TEST_S3_REPOSITORY }}
+          RESTIC_TEST_AZURE_ACCOUNT_NAME: ${{ secrets.RESTIC_TEST_AZURE_ACCOUNT_NAME }}
+          RESTIC_TEST_AZURE_ACCOUNT_KEY: ${{ secrets.RESTIC_TEST_AZURE_ACCOUNT_KEY }}
+          RESTIC_TEST_AZURE_REPOSITORY: ${{ secrets.RESTIC_TEST_AZURE_REPOSITORY }}
+          RESTIC_TEST_B2_ACCOUNT_ID: ${{ secrets.RESTIC_TEST_B2_ACCOUNT_ID }}
+          RESTIC_TEST_B2_ACCOUNT_KEY: ${{ secrets.RESTIC_TEST_B2_ACCOUNT_KEY }}
+          RESTIC_TEST_B2_REPOSITORY: ${{ secrets.RESTIC_TEST_B2_REPOSITORY }}
+          RESTIC_TEST_GS_REPOSITORY: ${{ secrets.RESTIC_TEST_GS_REPOSITORY }}
+          RESTIC_TEST_GS_PROJECT_ID: ${{ secrets.RESTIC_TEST_GS_PROJECT_ID }}
+          GOOGLE_PROJECT_ID: ${{ secrets.RESTIC_TEST_GS_PROJECT_ID }}
+          RESTIC_TEST_GS_APPLICATION_CREDENTIALS_B64: ${{ secrets.RESTIC_TEST_GS_APPLICATION_CREDENTIALS_B64 }}
+          RESTIC_TEST_OS_AUTH_URL: ${{ secrets.RESTIC_TEST_OS_AUTH_URL }}
+          RESTIC_TEST_OS_TENANT_NAME: ${{ secrets.RESTIC_TEST_OS_TENANT_NAME }}
+          RESTIC_TEST_OS_USERNAME: ${{ secrets.RESTIC_TEST_OS_USERNAME }}
+          RESTIC_TEST_OS_PASSWORD: ${{ secrets.RESTIC_TEST_OS_PASSWORD }}
+          RESTIC_TEST_OS_REGION_NAME: ${{ secrets.RESTIC_TEST_OS_REGION_NAME }}
+          RESTIC_TEST_SWIFT: ${{ secrets.RESTIC_TEST_SWIFT }}
+          # fail if any of the following tests cannot be run
+          RESTIC_TEST_DISALLOW_SKIP: "restic/backend/rest.TestBackendREST,\
+            restic/backend/sftp.TestBackendSFTP,\
+            restic/backend/s3.TestBackendMinio,\
+            restic/backend/rclone.TestBackendRclone,\
+            restic/backend/s3.TestBackendS3,\
+            restic/backend/swift.TestBackendSwift,\
+            restic/backend/b2.TestBackendB2,\
+            restic/backend/gs.TestBackendGS,\
+            restic/backend/azure.TestBackendAzure"
+        run: |
+          # prepare credentials for Google Cloud Storage tests in a temp file
+          export GOOGLE_APPLICATION_CREDENTIALS=$(mktemp --tmpdir restic-gcs-auth-XXXXXXX)
+          echo $RESTIC_TEST_GS_APPLICATION_CREDENTIALS_B64 | base64 -d > $GOOGLE_APPLICATION_CREDENTIALS
+          go test -cover -parallel 4 ./internal/backend/...
+
+        # only run cloud backend tests for pull requests from and pushes to our
+        # own repo, otherwise the secrets are not available
+        if: (github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository) && matrix.test_cloud_backends
+
+      - name: Check changelog files with calens
+        run: |
+          echo "install calens"
+          go install github.com/restic/calens@latest
+
+          echo "check changelog files"
+          calens
+        if: matrix.check_changelog
+
+  cross_compile:
+    strategy:
+
+      # ATTENTION: the list of architectures must be in sync with helpers/build-release-binaries/main.go!
+      matrix:
+        # run cross-compile in two batches parallel so the overall tests run faster
+        targets:
+          - "linux/386 linux/amd64 linux/arm linux/arm64 linux/ppc64le linux/mips linux/mipsle linux/mips64 linux/mips64le linux/s390x \
+            openbsd/386 openbsd/amd64"
+
+          - "freebsd/386 freebsd/amd64 freebsd/arm \
+            aix/ppc64 \
+            darwin/amd64 darwin/arm64 \
+            netbsd/386 netbsd/amd64 \
+            windows/386 windows/amd64 \
+            solaris/amd64"
+
+    env:
+      GOPROXY: https://proxy.golang.org
+
+    runs-on: ubuntu-latest
+
+    name: Cross Compile for ${{ matrix.targets }}
+
+    steps:
+      - name: Set up Go ${{ env.latest_go }}
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ env.latest_go }}
+
+      - name: Install gox
+        run: |
+          go install github.com/mitchellh/gox@latest
+
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Cross-compile with gox for ${{ matrix.targets }}
+        env:
+          GOFLAGS: "-trimpath"
+          GOX_ARCHS: "${{ matrix.targets }}"
+        run: |
+          mkdir build-output
+          gox -parallel 2 -verbose -osarch "$GOX_ARCHS" -output "build-output/{{.Dir}}_{{.OS}}_{{.Arch}}" ./cmd/restic
+          gox -parallel 2 -verbose -osarch "$GOX_ARCHS" -tags debug -output "build-output/{{.Dir}}_{{.OS}}_{{.Arch}}_debug" ./cmd/restic
+
+  lint:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Go ${{ env.latest_go }}
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ env.latest_go }}
+
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v2
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.45
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          only-new-issues: true
+          args: --verbose --timeout 5m
+          skip-go-installation: true
+
+        # only run golangci-lint for pull requests, otherwise ALL hints get
+        # reported. We need to slowly address all issues until we can enable
+        # linting the master branch :)
+        if: github.event_name == 'pull_request'
+
+      - name: Check go.mod/go.sum
+        run: |
+          echo "check if go.mod and go.sum are up to date"
+          go mod tidy
+          git diff --exit-code go.mod go.sum
+
+  docker:
+    name: docker
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          # list of Docker images to use as base name for tags
+          images: |
+            restic/restic
+          # generate Docker tags based on the following events/attributes
+          tags: |
+            type=schedule
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          push: false
+          context: .
+          file: docker/Dockerfile
+          pull: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.golangci.yml

@@ -0,0 +1,57 @@
+# This is the configuration for golangci-lint for the restic project.
+#
+# A sample config with all settings is here:
+# https://github.com/golangci/golangci-lint/blob/master/.golangci.example.yml
+
+linters:
+  # only enable the linters listed below
+  disable-all: true
+  enable:
+    # make sure all errors returned by functions are handled
+    - errcheck
+
+    # find unused code
+    - deadcode
+
+    # show how code can be simplified
+    - gosimple
+
+    # # make sure code is formatted
+    - gofmt
+
+    # examine code and report suspicious constructs, such as Printf calls whose
+    # arguments do not align with the format string
+    - govet
+
+    # make sure names and comments are used according to the conventions
+    - golint
+
+    # detect when assignments to existing variables are not used
+    - ineffassign
+
+    # run static analysis and find errors
+    - staticcheck
+
+    # find unused variables, functions, structs, types, etc.
+    - unused
+
+    # find unused struct fields
+    - structcheck
+
+    # find unused global variables
+    - varcheck
+
+    # parse and typecheck code
+    - typecheck
+
+issues:
+  # don't use the default exclude rules, this hides (among others) ignored
+  # errors from Close() calls
+  exclude-use-default: false
+
+  # list of things to not warn about
+  exclude:
+    # golint: do not warn about missing comments for exported stuff
+    - exported (function|method|var|type|const) `.*` should have comment or be unexported
+    # golint: ignore constants in all caps
+    - don't use ALL_CAPS in Go names; use CamelCase

.hound.yml

@@ -1,2 +0,0 @@
-go:
-  enabled: true

.travis.yml

@@ -1,58 +0,0 @@
-language: go
-sudo: false
-
-matrix:
-  include:
-    - os: linux
-      go: "1.13.x"
-      env: RESTIC_TEST_FUSE=0 RESTIC_TEST_CLOUD_BACKENDS=0
-      cache:
-        directories:
-          - $HOME/.cache/go-build
-          - $HOME/gopath/pkg/mod
-
-    - os: linux
-      go: "1.14.x"
-      env: RESTIC_TEST_FUSE=0 RESTIC_TEST_CLOUD_BACKENDS=0
-      cache:
-        directories:
-          - $HOME/.cache/go-build
-          - $HOME/gopath/pkg/mod
-
-    # only run fuse and cloud backends tests on Travis for the latest Go on Linux
-    - os: linux
-      go: "1.15.x"
-      sudo: true
-      cache:
-        directories:
-          - $HOME/.cache/go-build
-          - $HOME/gopath/pkg/mod
-
-    - os: osx
-      go: "1.15.x"
-      env: RESTIC_TEST_FUSE=0 RESTIC_TEST_CLOUD_BACKENDS=0
-      cache:
-        directories:
-          - $HOME/Library/Caches/go-build
-          - $HOME/gopath/pkg/mod
-
-branches:
-  only:
-    - master
-
-notifications:
-  irc:
-    channels:
-      - "chat.freenode.net#restic"
-    on_success: change
-    on_failure: change
-    skip_join: true
-
-install:
-  - go version
-  - export GOBIN="$GOPATH/bin"
-  - export PATH="$PATH:$GOBIN"
-  - go env
-
-script:
-  - go run run_integration_tests.go

CONTRIBUTING.md

@@ -13,11 +13,10 @@ bug fixes are most welcome. However even "minor" details as fixing spelling
 errors, improving documentation or pointing out usability issues are a great
 help also.
 
-
 The restic project uses the GitHub infrastructure (see the
 [project page](https://github.com/restic/restic)) for all related discussions
 as well as the [forum](https://forum.restic.net/) and the `#restic` channel
-on [irc.freenode.net](https://kiwiirc.com/nextclient/irc.freenode.net/restic).
+on [irc.libera.chat](https://kiwiirc.com/nextclient/#ircs://irc.libera.chat:6697/#restic).
 
 If you want to find an area that currently needs improving have a look at the
 open issues listed at the
@@ -67,7 +66,7 @@ Development Environment
 The repository contains the code written for restic in the directories
 `cmd/` and `internal/`.
 
-Restic requires Go version 1.13 or later for compiling. Clone the repo (without
+Restic requires Go version 1.14 or later for compiling. Clone the repo (without
 having `$GOPATH` set) and `cd` into the directory:
 
     $ unset GOPATH
@@ -124,7 +123,10 @@ down to the following steps:
     writing, ask yourself: If I were the user, what would I need to be aware
     of with this change?
 
- 8. Once your code looks good and passes all the tests, we'll merge it. Thanks
+ 8. Do not edit the man pages under `doc/man` or `doc/manual_rest.rst` -
+    these are autogenerated before new releases.
+
+ 9. Once your code looks good and passes all the tests, we'll merge it. Thanks
     a lot for your contribution!
 
 Please provide the patches for each bug or feature in a separate branch and
@@ -141,6 +143,14 @@ Installing the script `fmt-check` from https://github.com/edsrzf/gofmt-git-hook
 locally as a pre-commit hook checks formatting before committing automatically,
 just copy this script to `.git/hooks/pre-commit`.
 
+The project is using the program
+[`golangci-lint`](https://github.com/golangci/golangci-lint) to run a list of
+linters and checkers. It will be run on the code when you submit a PR. In order
+to check your code beforehand, you can run `golangci-lint run` manually.
+Eventually, we will enable `golangci-lint` for the whole code base. For now,
+you can ignore warnings printed for lines you did not modify, those will be
+ignored by the CI.
+
 For each pull request, several different systems run the integration tests on
 Linux, macOS and Windows. We won't merge any code that does not pass all tests
 for all systems, so when a tests fails, try to find out what's wrong and fix

README.md

@@ -1,6 +1,5 @@
 [![Documentation](https://readthedocs.org/projects/restic/badge/?version=latest)](https://restic.readthedocs.io/en/latest/?badge=latest)
-[![Build Status Travis](https://travis-ci.com/restic/restic.svg?branch=master)](https://travis-ci.com/restic/restic)
-[![Build Status AppVeyor](https://ci.appveyor.com/api/projects/status/nuy4lfbgfbytw92q/branch/master?svg=true)](https://ci.appveyor.com/project/fd0/restic/branch/master)
+[![Build Status](https://github.com/restic/restic/workflows/test/badge.svg)](https://github.com/restic/restic/actions?query=workflow%3Atest)
 [![Go Report Card](https://goreportcard.com/badge/github.com/restic/restic)](https://goreportcard.com/report/github.com/restic/restic)
 
 # Introduction
@@ -47,8 +46,8 @@ Therefore, restic supports the following backends for storing backups natively:
 
 - [Local directory](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#local)
 - [sftp server (via SSH)](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#sftp)
-- [HTTP REST server](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#rest-server) ([protocol](doc/100_references.rst#rest-backend), [rest-server](https://github.com/restic/rest-server))
-- [AWS S3](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#amazon-s3) (either from Amazon or using the [Minio](https://minio.io) server)
+- [HTTP REST server](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#rest-server) ([protocol](https://restic.readthedocs.io/en/latest/100_references.html#rest-backend), [rest-server](https://github.com/restic/rest-server))
+- [Amazon S3](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#amazon-s3) (either from Amazon or using the [Minio](https://minio.io) server)
 - [OpenStack Swift](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#openstack-swift)
 - [BackBlaze B2](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#backblaze-b2)
 - [Microsoft Azure Blob Storage](https://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#microsoft-azure-blob-storage)

VERSION

@@ -1 +1 @@
-0.11.0
+0.13.1

appveyor.yml

@@ -1,32 +0,0 @@
-clone_folder: c:\restic
-
-environment:
-  GOPATH: c:\gopath
-
-branches:
-  only:
-    - master
-
-cache:
-  - '%LocalAppData%\go-build'
-
-init:
-  - ps: >-
-      $app = Get-WmiObject -Class Win32_Product -Filter "Vendor = 'http://golang.org'"
-
-      if ($app) {
-        $app.Uninstall()
-      }
-
-install:
-  - rmdir c:\go /s /q
-  - appveyor DownloadFile https://dl.google.com/go/go1.15.2.windows-amd64.msi
-  - msiexec /i go1.15.2.windows-amd64.msi /q
-  - go version
-  - go env
-  - appveyor DownloadFile https://sourceforge.netcologne.de/project/gnuwin32/tar/1.13-1/tar-1.13-1-bin.zip -FileName tar.zip
-  - 7z x tar.zip bin/tar.exe
-  - set PATH=bin/;%PATH%
-
-build_script:
-  - go run run_integration_tests.go

build.go

@@ -35,6 +35,7 @@
 // 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.
 
+//go:build ignore_build_go
 // +build ignore_build_go
 
 package main
@@ -58,7 +59,7 @@ var config = Config{
 	Main:             "./cmd/restic",                           // package name for the main package
 	DefaultBuildTags: []string{"selfupdate"},                   // specify build tags which are always used
 	Tests:            []string{"./..."},                        // tests to run
-	MinVersion:       GoVersion{Major: 1, Minor: 11, Patch: 0}, // minimum Go version supported
+	MinVersion:       GoVersion{Major: 1, Minor: 14, Patch: 0}, // minimum Go version supported
 }
 
 // Config configures the build.
@@ -123,17 +124,8 @@ func printEnv(env []string) {
 
 // build runs "go build args..." with GOPATH set to gopath.
 func build(cwd string, env map[string]string, args ...string) error {
-	a := []string{"build"}
-
-	// try to remove all absolute paths from resulting binary
-	if goVersion.AtLeast(GoVersion{1, 13, 0}) {
-		// use the new flag introduced by Go 1.13
-		a = append(a, "-trimpath")
-	} else {
-		// otherwise try to trim as many paths as possible
-		a = append(a, "-asmflags", fmt.Sprintf("all=-trimpath=%s", cwd))
-		a = append(a, "-gcflags", fmt.Sprintf("all=-trimpath=%s", cwd))
-	}
+	// -trimpath removes all absolute paths from the binary.
+	a := []string{"build", "-trimpath"}
 
 	if enablePIE {
 		a = append(a, "-buildmode=pie")

changelog/0.12.0_2021-02-14/issue-1681

@@ -0,0 +1,10 @@
+Bugfix: Make `mount` not create missing mount point directory
+
+When specifying a non-existent directory as mount point for the `mount`
+command, restic used to create the specified directory automatically.
+
+This has now changed such that restic instead gives an error when the
+specified directory for the mount point does not exist.
+
+https://github.com/restic/restic/issues/1681
+https://github.com/restic/restic/pull/3008

changelog/0.12.0_2021-02-14/issue-1800

@@ -0,0 +1,8 @@
+Bugfix: Ignore `no data available` filesystem error during backup
+
+Restic was unable to backup files on some filesystems, for example certain
+configurations of CIFS on Linux which return a `no data available` error
+when reading extended attributes. These errors are now ignored.
+
+https://github.com/restic/restic/issues/1800
+https://github.com/restic/restic/pull/3034

changelog/0.12.0_2021-02-14/issue-2186

@@ -0,0 +1,8 @@
+Enhancement: Allow specifying percentage in `check --read-data-subset`
+
+We've enhanced the `check` command's `--read-data-subset` option to also accept
+a percentage (e.g. `2.5%` or `10%`). This will check the given percentage of
+pack files (which are randomly selected on each run).
+
+https://github.com/restic/restic/issues/2186
+https://github.com/restic/restic/pull/3038

changelog/0.12.0_2021-02-14/issue-2453

@@ -0,0 +1,14 @@
+Enhancement: Report permanent/fatal backend errors earlier
+
+When encountering errors in reading from or writing to storage backends,
+restic retries the failing operation up to nine times (for a total of ten
+attempts). It used to retry all backend operations, but now detects some
+permanent error conditions so that it can report fatal errors earlier.
+
+Permanent failures include local disks being full, SSH connections
+dropping and permission errors.
+
+https://github.com/restic/restic/issues/2453
+https://github.com/restic/restic/pull/3170
+https://github.com/restic/restic/issues/3180
+https://github.com/restic/restic/pull/3181

changelog/0.12.0_2021-02-14/issue-2528

@@ -0,0 +1,21 @@
+Enhancement: Add Alibaba/Aliyun OSS support in the `s3` backend
+
+A new extended option `s3.bucket-lookup` has been added to support
+Alibaba/Aliyun OSS in the `s3` backend. The option can be set to one
+of the following values:
+
+- `auto` - Existing behaviour
+- `dns` - Use DNS style bucket access
+- `path` - Use path style bucket access
+
+To make the `s3` backend work with Alibaba/Aliyun OSS you must set
+`s3.bucket-lookup` to `dns` and set the `s3.region` parameter. For
+example:
+
+    restic -o s3.bucket-lookup=dns -o s3.region=oss-eu-west-1 -r s3:https://oss-eu-west-1.aliyuncs.com/bucketname init
+
+Note that `s3.region` must be set, otherwise the MinIO SDK tries to
+look it up and it seems that Alibaba doesn't support that properly.
+
+https://github.com/restic/restic/issues/2528
+https://github.com/restic/restic/pull/2535

changelog/0.12.0_2021-02-14/issue-2563

@@ -0,0 +1,9 @@
+Bugfix: Report the correct owner of directories in FUSE mounts
+
+Restic 0.10.0 changed the FUSE mount to always report the current user
+as the owner of directories within the FUSE mount, which is incorrect.
+
+This is now changed back to reporting the correct owner of a directory.
+
+https://github.com/restic/restic/issues/2563
+https://github.com/restic/restic/pull/3141

changelog/0.12.0_2021-02-14/issue-2688

@@ -0,0 +1,31 @@
+Bugfix: Make `backup` and `tag` commands separate tags by comma
+
+Running `restic backup --tag foo,bar` previously created snapshots with one
+single tag containing a comma (`foo,bar`) instead of two tags (`foo`, `bar`).
+
+Similarly, the `tag` command's `--set`, `--add` and `--remove` options would
+treat `foo,bar` as one tag instead of two tags. This was inconsistent with
+other commands and often unexpected when one intended `foo,bar` to mean two
+tags.
+
+To be consistent in all commands, restic now interprets `foo,bar` to mean two
+separate tags (`foo` and `bar`) instead of one tag (`foo,bar`) everywhere,
+including in the `backup` and `tag` commands.
+
+NOTE: This change might result in unexpected behavior in cases where you use
+the `forget` command and filter on tags like `foo,bar`. Snapshots previously
+backed up with `--tag foo,bar` will still not match that filter, but snapshots
+saved from now on will match that filter.
+
+To replace `foo,bar` tags with `foo` and `bar` tags in old snapshots, you can
+first generate a list of the relevant snapshots using a command like:
+
+    restic snapshots --json --quiet | jq '.[] | select(contains({tags: ["foo,bar"]})) | .id'
+
+and then use `restic tag --set foo --set bar snapshotID [...]` to set the new
+tags. Please adjust the commands to include real tag names and any additional
+tags, as well as the list of snapshots to process.
+
+https://github.com/restic/restic/issues/2688
+https://github.com/restic/restic/pull/2690
+https://github.com/restic/restic/pull/3197

changelog/0.12.0_2021-02-14/issue-2706

@@ -0,0 +1,17 @@
+Enhancement: Configurable progress reports for non-interactive terminals
+
+The `backup`, `check` and `prune` commands never printed any progress
+reports on non-interactive terminals. This behavior is now configurable
+using the `RESTIC_PROGRESS_FPS` environment variable. Use for example a
+value of `1` for an update every second, or `0.01666` for an update every
+minute.
+
+The `backup` command now also prints the current progress when restic
+receives a `SIGUSR1` signal.
+
+Setting the `RESTIC_PROGRESS_FPS` environment variable or sending a `SIGUSR1`
+signal prints a status report even when `--quiet` was specified.
+
+https://github.com/restic/restic/issues/2706
+https://github.com/restic/restic/issues/3194
+https://github.com/restic/restic/pull/3199

changelog/0.12.0_2021-02-14/issue-2739

@@ -0,0 +1,5 @@
+Bugfix: Make the `cat` command respect the `--no-lock` option
+
+The `cat` command would not respect the `--no-lock` flag. This is now fixed.
+
+https://github.com/restic/restic/issues/2739

changelog/0.12.0_2021-02-14/issue-2944

@@ -0,0 +1,13 @@
+Enhancement: Add `backup` options `--files-from-{verbatim,raw}`
+
+The new `backup` options `--files-from-verbatim` and `--files-from-raw` read a
+list of files to back up from a file. Unlike the existing `--files-from`
+option, these options do not interpret the listed filenames as glob patterns;
+instead, whitespace in filenames is preserved as-is and no pattern expansion is
+done. Please see the documentation for specifics.
+
+These new options are highly recommended over `--files-from`, when using a
+script to generate the list of files to back up.
+
+https://github.com/restic/restic/issues/2944
+https://github.com/restic/restic/issues/3013

changelog/0.12.0_2021-02-14/issue-3083

@@ -0,0 +1,18 @@
+Enhancement: Allow usage of deprecated S3 `ListObjects` API
+
+Some S3 API implementations, e.g. Ceph before version 14.2.5, have a broken
+`ListObjectsV2` implementation which causes problems for restic when using
+their API endpoints. When a broken server implementation is used, restic prints
+errors similar to the following:
+
+    List() returned error: Truncated response should have continuation token set
+
+As a temporary workaround, restic now allows using the older `ListObjects`
+endpoint by setting the `s3.list-objects-v1` extended option, for instance:
+
+    restic -o s3.list-objects-v1=true snapshots
+
+Please note that this option may be removed in future versions of restic.
+
+https://github.com/restic/restic/issues/3083
+https://github.com/restic/restic/pull/3085

changelog/0.12.0_2021-02-14/issue-3090

@@ -0,0 +1,10 @@
+Bugfix: The `--use-fs-snapshot` option now works on windows/386
+
+Restic failed to create VSS snapshots on windows/386 with the following error:
+
+    GetSnapshotProperties() failed: E_INVALIDARG (0x80070057)
+
+This is now fixed.
+
+https://github.com/restic/restic/issues/3087
+https://github.com/restic/restic/pull/3090

changelog/0.12.0_2021-02-14/issue-3095

@@ -0,0 +1,17 @@
+Change: Deleting files on Google Drive now moves them to the trash
+
+When deleting files on Google Drive via the `rclone` backend, restic used to
+bypass the trash folder required that one used the `-o rclone.args` option to
+enable usage of the trash folder. This ensured that deleted files in Google
+Drive were not kept indefinitely in the trash folder. However, since Google
+Drive's trash retention policy changed to deleting trashed files after 30 days,
+this is no longer needed.
+
+Restic now leaves it up to rclone and its configuration to use or not use the
+trash folder when deleting files. The default is to use the trash folder, as
+of rclone 1.53.2. To re-enable the restic 0.11 behavior, set the
+`RCLONE_DRIVE_USE_TRASH` environment variable or change the rclone
+configuration. See the rclone documentation for more details.
+
+https://github.com/restic/restic/issues/3095
+https://github.com/restic/restic/pull/3102

changelog/0.12.0_2021-02-14/issue-3100

@@ -0,0 +1,10 @@
+Bugfix: Do not require gs bucket permissions when running `init`
+
+Restic used to require bucket level permissions for the `gs` backend 
+in order to initialize a restic repository.
+
+It now allows a `gs` service account to initialize a repository if the
+bucket does exist and the service account has permissions to write/read
+to that bucket.
+
+https://github.com/restic/restic/issues/3100

changelog/0.12.0_2021-02-14/issue-3111

@@ -0,0 +1,9 @@
+Bugfix: Correctly detect output redirection for `backup` command on Windows
+
+On Windows, since restic 0.10.0 the `backup` command did not properly detect
+when the output was redirected to a file. This caused restic to output
+terminal control characters. This has been fixed by correcting the terminal
+detection.
+
+https://github.com/restic/restic/issues/3111
+https://github.com/restic/restic/pull/3150

changelog/0.12.0_2021-02-14/issue-3147

@@ -0,0 +1,11 @@
+Enhancement: Support additional environment variables for Swift authentication
+
+The `swift` backend now supports the following additional environment variables
+for passing authentication details to restic:
+`OS_USER_ID`, `OS_USER_DOMAIN_ID`, `OS_PROJECT_DOMAIN_ID` and `OS_TRUST_ID`
+
+Depending on the `openrc` configuration file these might be required when the
+user and project domains differ from one another.
+
+https://github.com/restic/restic/issues/3147
+https://github.com/restic/restic/pull/3158

changelog/0.12.0_2021-02-14/issue-3151

@@ -0,0 +1,9 @@
+Bugfix: Don't create invalid snapshots when `backup` is interrupted
+
+When canceling a backup run at a certain moment it was possible that
+restic created a snapshot with an invalid "null" tree. This caused
+`check` and other operations to fail. The `backup` command now properly
+handles interruptions and never saves a snapshot when interrupted.
+
+https://github.com/restic/restic/issues/3151
+https://github.com/restic/restic/pull/3164

changelog/0.12.0_2021-02-14/issue-3166

@@ -0,0 +1,9 @@
+Bugfix: Improve error handling in the `restore` command
+
+The `restore` command used to not print errors while downloading file contents
+from the repository. It also incorrectly exited with a zero error code even
+when there were errors during the restore process. This has all been fixed and
+`restore` now returns with a non-zero exit code when there's an error.
+
+https://github.com/restic/restic/issues/3166
+https://github.com/restic/restic/pull/3207

changelog/0.12.0_2021-02-14/issue-3191

@@ -0,0 +1,8 @@
+Enhancement: Add release binaries for MIPS architectures
+
+We've added a few new architectures for Linux to the release binaries: `mips`,
+`mipsle`, `mips64`, and `mip64le`. MIPS is mostly used for low-end embedded
+systems.
+
+https://github.com/restic/restic/issues/3191
+https://github.com/restic/restic/pull/3208

changelog/0.12.0_2021-02-14/issue-3232

@@ -0,0 +1,11 @@
+Bugfix: Correct statistics for overlapping targets
+
+A user reported that restic's statistics and progress information during backup
+was not correctly calculated when the backup targets (files/dirs to save)
+overlap. For example, consider a directory `foo` which contains (among others)
+a file `foo/bar`. When `restic backup foo foo/bar` was run, restic counted the
+size of the file `foo/bar` twice, so the completeness percentage as well as the
+number of files was wrong. This is now corrected.
+
+https://github.com/restic/restic/issues/3232
+https://github.com/restic/restic/pull/3243

changelog/0.12.0_2021-02-14/issue-909

@@ -0,0 +1,12 @@
+Enhancement: Back up mountpoints as empty directories
+
+When the `--one-file-system` option is specified to `restic backup`, it
+ignores all file systems mounted below one of the target directories. This
+means that when a snapshot is restored, users needed to manually recreate
+the mountpoint directories.
+
+Restic now backs up mountpoints as empty directories and therefore implements
+the same approach as `tar`.
+
+https://github.com/restic/restic/issues/909
+https://github.com/restic/restic/pull/3119

changelog/0.12.0_2021-02-14/pr-3250

@@ -0,0 +1,6 @@
+Enhancement: Add several more error checks
+
+We've added a lot more error checks in places where errors were previously
+ignored (as hinted by the static analysis program `errcheck` via `golangci-lint`).
+
+https://github.com/restic/restic/pull/3250

changelog/0.12.0_2021-02-14/pull-2718

@@ -0,0 +1,29 @@
+Enhancement: Improve `prune` performance and make it more customizable
+
+The `prune` command is now much faster. This is especially the case for remote
+repositories or repositories with not much data to remove. Also the memory
+usage of the `prune` command is now reduced.
+
+Restic used to rebuild the index from scratch after pruning. This could lead
+to missing packs in the index in some cases for eventually consistent backends
+such as e.g. AWS S3. This behavior is now changed and the index rebuilding
+uses the information already known by `prune`.
+
+By default, the `prune` command no longer removes all unused data. This
+behavior can be fine-tuned by new options, like the acceptable amount of
+unused space or the maximum size of data to reorganize. For more details,
+please see https://restic.readthedocs.io/en/stable/060_forget.html .
+
+Moreover, `prune` now accepts the `--dry-run` option and also running
+`forget --dry-run --prune` will show what `prune` would do.
+
+This enhancement also fixes several open issues, e.g.:
+- https://github.com/restic/restic/issues/1140
+- https://github.com/restic/restic/issues/1599
+- https://github.com/restic/restic/issues/1985
+- https://github.com/restic/restic/issues/2112
+- https://github.com/restic/restic/issues/2227
+- https://github.com/restic/restic/issues/2305
+
+https://github.com/restic/restic/pull/2718
+https://github.com/restic/restic/pull/2842

changelog/0.12.0_2021-02-14/pull-2823

@@ -0,0 +1,27 @@
+Enhancement: Add option to let `backup` trust mtime without checking ctime
+
+The `backup` command used to require that both `ctime` and `mtime` of a file
+matched with a previously backed up version to determine that the file was
+unchanged. In other words, if either `ctime` or `mtime` of the file had
+changed, it would be considered changed and restic would read the file's
+content again to back up the relevant (changed) parts of it.
+
+The new option `--ignore-ctime` makes restic look at `mtime` only, such that
+`ctime` changes for a file does not cause restic to read the file's contents
+again.
+
+The check for both `ctime` and `mtime` was introduced in restic 0.9.6 to make
+backups more reliable in the face of programs that reset `mtime` (some Unix
+archivers do that), but it turned out to often be expensive because it made
+restic read file contents even if only the metadata (owner, permissions) of
+a file had changed. The new `--ignore-ctime` option lets the user restore the
+0.9.5 behavior when needed. The existing `--ignore-inode` option already
+turned off this behavior, but also removed a different check.
+
+Please note that changes in files' metadata are still recorded, regardless of
+the command line options provided to the backup command.
+
+https://github.com/restic/restic/issues/2495
+https://github.com/restic/restic/issues/2558
+https://github.com/restic/restic/issues/2819
+https://github.com/restic/restic/pull/2823

changelog/0.12.0_2021-02-14/pull-2941

@@ -0,0 +1,8 @@
+Enhancement: Speed up the repacking step of the `prune` command
+
+The repack step of the `prune` command, which moves still used file parts into
+new pack files such that the old ones can be garbage collected later on, now
+processes multiple pack files in parallel. This is especially beneficial for
+high latency backends or when using a fast network connection.
+
+https://github.com/restic/restic/pull/2941

changelog/0.12.0_2021-02-14/pull-3006

@@ -0,0 +1,11 @@
+Enhancement: Speed up the `rebuild-index` command
+
+We've optimized the `rebuild-index` command. Now, existing index entries are used
+to minimize the number of pack files that must be read. This speeds up the index
+rebuild a lot.
+
+Additionally, the option `--read-all-packs` has been added, implementing the
+previous behavior.
+
+https://github.com/restic/restic/issue/2547
+https://github.com/restic/restic/pull/3006

changelog/0.12.0_2021-02-14/pull-3014

@@ -0,0 +1,13 @@
+Bugfix: Fix sporadic stream reset between rclone and restic
+
+Sometimes when using restic with the `rclone` backend, an error message
+similar to the following would be printed:
+
+    Didn't finish writing GET request (wrote 0/xxx): http2: stream closed
+
+It was found that this was caused by restic closing the connection to rclone
+to soon when downloading data. A workaround has been added which waits for
+the end of the download before closing the connection.
+
+https://github.com/restic/restic/pull/3014
+https://github.com/rclone/rclone/issues/2598

changelog/0.12.0_2021-02-14/pull-3048

@@ -0,0 +1,23 @@
+Enhancement: Add more checks for index and pack files in the `check` command
+
+The `check` command run with the `--read-data` or `--read-data-subset` options
+used to only verify only the pack file content - it did not check if the blobs
+within the pack are correctly contained in the index.
+
+A check for the latter is now in place, which can print the following error:
+
+    Blob ID is not contained in index or position is incorrect
+
+Another test is also added, which compares pack file sizes computed from the
+index and the pack header with the actual file size. This test is able to
+detect truncated pack files.
+
+If the index is not correct, it can be rebuilt by using the `rebuild-index`
+command.
+
+Having added these tests, `restic check` is now able to detect non-existing
+blobs which are wrongly referenced in the index. This situation could have
+lead to missing data.
+
+https://github.com/restic/restic/pull/3048
+https://github.com/restic/restic/pull/3082

changelog/0.12.0_2021-02-14/pull-3081

@@ -0,0 +1,8 @@
+Enhancement: Make the `dump` command support `zip` format
+
+Previously, restic could dump the contents of a whole folder structure only
+in the `tar` format. The `dump` command now has a new flag to change output
+format to `zip`. Just pass `--archive zip` as an option to `restic dump`.
+
+https://github.com/restic/restic/pull/2433
+https://github.com/restic/restic/pull/3081

changelog/0.12.0_2021-02-14/pull-3099

@@ -0,0 +1,6 @@
+Enhancement: Reduce memory usage of `check` command
+
+The `check` command now requires less memory if it is run without the
+`--check-unused` option.
+
+https://github.com/restic/restic/pull/3099

changelog/0.12.0_2021-02-14/pull-3106

@@ -0,0 +1,10 @@
+Enhancement: Parallelize scan of snapshot content in `copy` and `prune`
+
+The `copy` and `prune` commands used to traverse the directories of
+snapshots one by one to find used data. This snapshot traversal is
+now parallized which can speed up this step several times.
+
+In addition the `check` command now reports how many snapshots have
+already been processed.
+
+https://github.com/restic/restic/pull/3106

changelog/0.12.0_2021-02-14/pull-3130

@@ -0,0 +1,13 @@
+Enhancement: Parallelize reading of locks and snapshots
+
+Restic used to read snapshots sequentially. For repositories containing
+many snapshots this slowed down commands which have to read all snapshots.
+
+Now the reading of snapshots is parallelized. This speeds up for example
+`prune`, `backup` and other commands that search for snapshots with certain
+properties or which have to find the `latest` snapshot.
+
+The speed up also applies to locks stored in the backup repository.
+
+https://github.com/restic/restic/pull/3130
+https://github.com/restic/restic/pull/3174

changelog/0.12.0_2021-02-14/pull-3152

@@ -0,0 +1,8 @@
+Bugfix: Do not hang until foregrounded when completed in background
+
+On Linux, when running in the background restic failed to stop the terminal
+output of the `backup` command after it had completed. This caused restic to
+hang until moved to the foreground. This has now been fixed.
+
+https://github.com/restic/restic/pull/3152
+https://forum.restic.net/t/restic-alpine-container-cron-hangs-epoll-pwait/3334

changelog/0.12.0_2021-02-14/pull-3249

@@ -0,0 +1,7 @@
+Bugfix: Improve error handling in `gs` backend
+
+The `gs` backend did not notice when the last step of completing a
+file upload failed. Under rare circumstances, this could cause
+missing files in the backup repository. This has now been fixed.
+
+https://github.com/restic/restic/pull/3249

changelog/0.12.0_2021-02-14/pull-3254

@@ -0,0 +1,8 @@
+Enhancement: Enable HTTP/2 for backend connections
+
+Go's HTTP library usually automatically chooses between HTTP/1.x and HTTP/2
+depending on what the server supports. But for compatibility this mechanism
+is disabled if DialContext is used (which is the case for restic). This change
+allows restic's HTTP client to negotiate HTTP/2 if supported by the server.
+
+https://github.com/restic/restic/pull/3254

changelog/0.12.1_2021-08-03/issue-2742

@@ -0,0 +1,13 @@
+Bugfix: Improve error handling for rclone and REST backend over HTTP2
+
+When retrieving data from the rclone / REST backend while also using HTTP2
+restic did not detect when no data was returned at all. This could cause
+for example the `check` command to report the following error:
+
+    Pack ID does not match, want [...], got e3b0c442
+
+This has been fixed by correctly detecting and retrying the incomplete download.
+
+https://github.com/restic/restic/issues/2742
+https://github.com/restic/restic/pull/3453
+https://forum.restic.net/t/http2-stream-closed-connection-reset-context-canceled/3743/10

changelog/0.12.1_2021-08-03/issue-2780

@@ -0,0 +1,6 @@
+Enhancement: Add release binaries for s390x architecture on Linux
+
+We've added release binaries for Linux using the s390x architecture.
+
+https://github.com/restic/restic/issues/2780
+https://github.com/restic/restic/pull/3452

changelog/0.12.1_2021-08-03/issue-3111

@@ -0,0 +1,11 @@
+Bugfix: Fix terminal output redirection for PowerShell
+
+When redirecting the output of restic using PowerShell on Windows, the
+output contained terminal escape characters. This has been fixed by
+properly detecting the terminal type.
+
+In addition, the mintty terminal now shows progress output for the backup
+command.
+
+https://github.com/restic/restic/issues/3111
+https://github.com/restic/restic/pull/3325

changelog/0.12.1_2021-08-03/issue-3214

@@ -0,0 +1,9 @@
+Bugfix: Treat an empty password as a fatal error for repository init
+
+When attempting to initialize a new repository, if an empty password was
+supplied, the repository would be created but the init command would return
+an error with a stack trace. Now, if an empty password is provided, it is
+treated as a fatal error, and no repository is created.
+
+https://github.com/restic/restic/issues/3214
+https://github.com/restic/restic/pull/3283

changelog/0.12.1_2021-08-03/issue-3247

@@ -0,0 +1,8 @@
+Change: Empty files now have size of 0 in `ls --json` output
+
+The `ls --json` command used to omit the sizes of empty files in its
+output. It now reports a size of zero explicitly for regular files,
+while omitting the size field for all other types.
+
+https://github.com/restic/restic/issues/3247
+https://github.com/restic/restic/pull/3257

changelog/0.12.1_2021-08-03/issue-3267

@@ -0,0 +1,11 @@
+Bugfix: `copy` failed to copy snapshots in rare cases
+
+The `copy` command could in rare cases fail with the error message `SaveTree(...)
+returned unexpected id ...`.  This has been fixed.
+
+On Linux/BSDs, the error could be caused by backing up symlinks with non-UTF-8
+target paths. Note that, due to limitations in the repository format, these are
+not stored properly and should be avoided if possible.
+
+https://github.com/restic/restic/issues/3267
+https://github.com/restic/restic/pull/3310

changelog/0.12.1_2021-08-03/issue-3284

@@ -0,0 +1,11 @@
+Bugfix: `backup --quiet` no longer prints status information
+
+A regression in the latest restic version caused the output of `backup --quiet`
+to contain large amounts of backup progress information when run using an
+interactive terminal. This is fixed now.
+
+A workaround for this bug is to run restic as follows:
+`restic backup --quiet [..] | cat -`.
+
+https://github.com/restic/restic/issues/3184
+https://github.com/restic/restic/pull/3186

changelog/0.12.1_2021-08-03/issue-3293

@@ -0,0 +1,14 @@
+Enhancement: Add `--repository-file2` option to `init` and `copy` command
+
+The `init` and `copy` command can now be used with the `--repository-file2`
+option or the `$RESTIC_REPOSITORY_FILE2` environment variable.
+These to options are in addition to the `--repo2` flag and allow you to read
+the destination repository from a file.
+
+Using both `--repository-file` and `--repo2` options resulted in an error for
+the `copy` or `init` command. The handling of this combination of options has
+been fixed. A workaround for this issue is to only use `--repo` or `-r` and
+`--repo2` for `init` or `copy`.
+
+https://github.com/restic/restic/issues/3293
+https://github.com/restic/restic/pull/3294

changelog/0.12.1_2021-08-03/issue-3296

@@ -0,0 +1,7 @@
+Bugfix: Fix crash of `check --read-data-subset=x%` run for an empty repository
+
+The command `restic check --read-data-subset=x%` crashed when run for an empty
+repository. This has been fixed.
+
+https://github.com/restic/restic/issues/3296
+https://github.com/restic/restic/pull/3309

changelog/0.12.1_2021-08-03/issue-3302

@@ -0,0 +1,8 @@
+Bugfix: Fix `fdopendir: not a directory` error for local backend
+
+The `check`, `list packs`, `prune` and `rebuild-index` commands failed
+for the local backend when the `data` folder in the repository contained
+files. This has been fixed.
+
+https://github.com/restic/restic/issues/3302
+https://github.com/restic/restic/pull/3308

changelog/0.12.1_2021-08-03/issue-3312

@@ -0,0 +1,5 @@
+Enhancement: Add auto-completion support for fish
+
+The `generate` command now supports fish auto completion.
+
+https://github.com/restic/restic/pull/3312

changelog/0.12.1_2021-08-03/issue-3334

@@ -0,0 +1,8 @@
+Bugfix: Print `created new cache` message only on a terminal
+
+The message `created new cache` was printed even when the output wasn't a
+terminal. That broke piping `restic dump` output to tar or zip if cache
+directory didn't exist. The message is now only printed on a terminal.
+
+https://github.com/restic/restic/issues/3334
+https://github.com/restic/restic/pull/3343

changelog/0.12.1_2021-08-03/issue-3336

@@ -0,0 +1,8 @@
+Enhancement: SFTP backend now checks for disk space
+
+Backing up over SFTP previously spewed multiple generic "failure" messages
+when the remote disk was full. It now checks for disk space before writing
+a file and fails immediately with a "no space left on device" message.
+
+https://github.com/restic/restic/issues/3336
+https://github.com/restic/restic/pull/3345

changelog/0.12.1_2021-08-03/issue-3377

@@ -0,0 +1,6 @@
+Enhancement: Add release binaries for Apple Silicon
+
+We've added release binaries for macOS on Apple Silicon (M1).
+
+https://github.com/restic/restic/issues/3377
+https://github.com/restic/restic/pull/3394

changelog/0.12.1_2021-08-03/issue-3380

@@ -0,0 +1,7 @@
+Bugfix: Fix crash of `backup --exclude='**'`
+
+The exclude filter `**`, which excludes all files, caused restic to crash. This
+has been corrected.
+
+https://github.com/restic/restic/issues/3380
+https://github.com/restic/restic/pull/3393

changelog/0.12.1_2021-08-03/issue-3414

@@ -0,0 +1,20 @@
+Enhancement: Add `--keep-within-hourly` option to restic forget
+
+The `forget` command allowed keeping a given number of hourly
+backups or to keep all backups within a given interval, but it
+was not possible to specify keeping hourly backups within a given
+interval.
+
+The new `--keep-within-hourly` option now offers this functionality.
+Similar options for daily/weekly/monthly/yearly are also implemented,
+the new options are:
+
+    --keep-within-hourly <1y2m3d4h>
+    --keep-within-daily <1y2m3d4h>
+    --keep-within-weekly <1y2m3d4h>
+    --keep-within-monthly <1y2m3d4h>
+    --keep-within-yearly <1y2m3d4h>
+
+https://github.com/restic/restic/issues/3414
+https://github.com/restic/restic/pull/3416
+https://forum.restic.net/t/forget-policy/4014/11

changelog/0.12.1_2021-08-03/issue-3456

@@ -0,0 +1,9 @@
+Enhancement: Support filtering and specifying untagged snapshots
+
+It was previously not possible to specify an empty tag with the `--tag` and
+`--keep-tag` options. This has now been fixed, such that `--tag ''` and
+`--keep-tag ''` now matches snapshots without tags. This allows e.g. the
+`snapshots` and `forget` commands to only operate on untagged snapshots.
+
+https://github.com/restic/restic/issues/3456
+https://github.com/restic/restic/pull/3457

changelog/0.12.1_2021-08-03/pull-3167

@@ -0,0 +1,9 @@
+Enhancement: Allow specifying limit of `snapshots` list
+
+The `--last` option allowed limiting the output of the `snapshots`
+command to the latest snapshot for each host. The new `--latest n`
+option allows limiting the output to the latest `n` snapshots.
+
+This change deprecates the option `--last` in favour of `--latest 1`.
+
+https://github.com/restic/restic/pull/3167

changelog/0.12.1_2021-08-03/pull-3305

@@ -0,0 +1,6 @@
+Bugfix: Fix possibly missing backup summary of JSON output in case of error
+
+When using `--json` output it happened from time to time that the summary
+output was missing in case an error occurred. This has been fixed.
+
+https://github.com/restic/restic/pull/3305

changelog/0.12.1_2021-08-03/pull-3426

@@ -0,0 +1,7 @@
+Enhancement: Optimize read performance of mount command
+
+Reading large files in a mounted repository may be up to five times faster.
+This improvement primarily applies to repositories stored at a backend that can
+be accessed with low latency, like e.g. the local backend.
+
+https://github.com/restic/restic/pull/3426

changelog/0.12.1_2021-08-03/pull-3427

@@ -0,0 +1,13 @@
+Enhancement: `find --pack` fallback to index if data file is missing
+
+When investigating a repository with missing data files, it might be useful to
+determine affected snapshots before running `rebuild-index`. Previously,
+`find --pack pack-id` returned no data as it required accessing the data file.
+Now, if the necessary data is still available in the repository index, it gets
+retrieved from there.
+
+The command now also supports looking up multiple pack files in a single `find`
+run.
+
+https://github.com/restic/restic/pull/3427
+https://forum.restic.net/t/missing-packs-not-found/2600

changelog/0.12.1_2021-08-03/pull-3449

@@ -0,0 +1,8 @@
+Bugfix: Correctly handle download errors during `restore`
+
+Due to a regression in restic 0.12.0, the `restore` command in some cases did
+not retry download errors and only printed a warning. This has been fixed by
+retrying incomplete data downloads.
+
+https://github.com/restic/restic/issues/3439
+https://github.com/restic/restic/pull/3449

changelog/0.13.0_2022-03-26/issue-1106

@@ -0,0 +1,10 @@
+Bugfix: Never lock repository for `list locks`
+
+The `list locks` command previously locked to the repository by default. This
+had the problem that it wouldn't work for an exclusively locked repository and
+that the command would also display its own lock file which can be confusing.
+
+Now, the `list locks` command never locks the repository.
+
+https://github.com/restic/restic/issues/1106
+https://github.com/restic/restic/pull/3665

changelog/0.13.0_2022-03-26/issue-1542

@@ -0,0 +1,16 @@
+Enhancement: Add `--dry-run`/`-n` option to `backup` command
+
+Testing exclude filters and other configuration options was error prone as
+wrong filters could cause files to be uploaded unintentionally. It was also
+not possible to estimate beforehand how much data would be uploaded.
+
+The `backup` command now has a `--dry-run`/`-n` option, which performs all the
+normal steps of a backup without actually writing anything to the repository.
+
+Passing -vv will log information about files that would be added, allowing for
+verification of source and exclusion options before running the real backup.
+
+https://github.com/restic/restic/issues/1542
+https://github.com/restic/restic/pull/2308
+https://github.com/restic/restic/pull/3210
+https://github.com/restic/restic/pull/3300

changelog/0.13.0_2022-03-26/issue-2202

@@ -0,0 +1,15 @@
+Enhancement: Add upload checksum for Azure, GS, S3 and Swift backends
+
+Previously only the B2 and partially the Swift backends verified the integrity
+of uploaded (encrypted) files. The verification works by informing the backend
+about the expected hash of the uploaded file. The backend then verifies the
+upload and thereby rules out any data corruption during upload.
+
+We have now added upload checksums for the Azure, GS, S3 and Swift backends,
+which besides integrity checking for uploads also means that restic can now be
+used to store backups in S3 buckets which have Object Lock enabled.
+
+https://github.com/restic/restic/issues/2202
+https://github.com/restic/restic/issues/2700
+https://github.com/restic/restic/issues/3023
+https://github.com/restic/restic/pull/3246

changelog/0.13.0_2022-03-26/issue-233

@@ -0,0 +1,29 @@
+Enhancement: Support negative include/exclude patterns
+
+If a pattern starts with an exclamation mark and it matches a file that was
+previously matched by a regular pattern, the match is cancelled. Notably,
+this can be used with `--exclude-file` to cancel the exclusion of some files.
+
+It works similarly to `.gitignore`, with the same limitation; Once a directory
+is excluded, it is not possible to include files inside the directory.
+
+Example of use as an exclude pattern for the `backup` command:
+
+    $HOME/**/*
+    !$HOME/Documents
+    !$HOME/code
+    !$HOME/.emacs.d
+    !$HOME/games
+    # [...]
+    node_modules
+    *~
+    *.o
+    *.lo
+    *.pyc
+    # [...]
+    $HOME/code/linux/*
+    !$HOME/code/linux/.git
+    # [...]
+
+https://github.com/restic/restic/issues/233
+https://github.com/restic/restic/pull/2311

changelog/0.13.0_2022-03-26/issue-2345

@@ -0,0 +1,13 @@
+Bugfix: Make cache crash-resistant and usable by multiple concurrent processes
+
+The restic cache directory (`RESTIC_CACHE_DIR`) could end up in a broken state
+in the event of restic (or the OS) crashing. This is now less likely to occur
+as files are downloaded to a temporary location before being moved to their
+proper location.
+
+This also allows multiple concurrent restic processes to operate on a single
+repository without conflicts. Previously, concurrent operations could cause
+segfaults because the processes saw each other's partially downloaded files.
+
+https://github.com/restic/restic/issues/2345
+https://github.com/restic/restic/pull/2838

changelog/0.13.0_2022-03-26/issue-2388

@@ -0,0 +1,10 @@
+Enhancement: Add warning for S3 if partial credentials are provided
+
+Previously restic did not notify about incomplete credentials when using the
+S3 backend, instead just reporting access denied.
+
+Restic now checks that both the AWS key ID and secret environment variables are
+set before connecting to the remote server, and reports an error if not.
+
+https://github.com/restic/restic/issues/2388
+https://github.com/restic/restic/pull/3532

changelog/0.13.0_2022-03-26/issue-2452

@@ -0,0 +1,11 @@
+Bugfix: Improve error handling of repository locking
+
+Previously, when the lock refresh failed to delete the old lock file, it forgot
+about the newly created one. Instead it continued trying to delete the old
+(usually no longer existing) lock file and thus over time lots of lock files
+accumulated. This has now been fixed.
+
+https://github.com/restic/restic/issues/2452
+https://github.com/restic/restic/issues/2473
+https://github.com/restic/restic/issues/2562
+https://github.com/restic/restic/pull/3512

changelog/0.13.0_2022-03-26/issue-2508

@@ -0,0 +1,8 @@
+Enhancement: Support JSON output and quiet mode for the `diff` command
+
+The `diff` command now supports outputting machine-readable output in JSON
+format. To enable this, pass the `--json` option to the command. To only print
+the summary and suppress detailed output, pass the `--quiet` option.
+
+https://github.com/restic/restic/issues/2508
+https://github.com/restic/restic/pull/3592

changelog/0.13.0_2022-03-26/issue-2656

@@ -0,0 +1,8 @@
+Enhancement: Add flag to disable TLS verification for self-signed certificates
+
+There is now an `--insecure-tls` global option in restic, which disables TLS
+verification for self-signed certificates in order to support some development
+workflows.
+
+https://github.com/restic/restic/issues/2656
+https://github.com/restic/restic/pull/2657

changelog/0.13.0_2022-03-26/issue-2738

@@ -0,0 +1,8 @@
+Bugfix: Don't print progress for `backup --json --quiet`
+
+Unlike the text output, the `--json` output format still printed progress
+information even in `--quiet` mode. This has now been fixed by always
+disabling the progress output in quiet mode.
+
+https://github.com/restic/restic/issues/2738
+https://github.com/restic/restic/pull/3264

changelog/0.13.0_2022-03-26/issue-3003

@@ -0,0 +1,9 @@
+Enhancement: Atomic uploads for the SFTP backend
+
+The SFTP backend did not upload files atomically. An interrupted upload could
+leave an incomplete file behind which could prevent restic from accessing the
+repository. This has now been fixed and uploads in the SFTP backend are done
+atomically.
+
+https://github.com/restic/restic/issues/3003
+https://github.com/restic/restic/pull/3524

changelog/0.13.0_2022-03-26/issue-3127

@@ -0,0 +1,6 @@
+Enhancement: Add xattr (extended attributes) support for Solaris
+
+Restic now supports xattr for the Solaris operating system.
+
+https://github.com/restic/restic/issues/3127
+https://github.com/restic/restic/pull/3628

changelog/0.13.0_2022-03-26/issue-3382

@@ -0,0 +1,8 @@
+Bugfix: Make `check` command honor `RESTIC_CACHE_DIR` environment variable
+
+Previously, the `check` command didn't honor the `RESTIC_CACHE_DIR` environment
+variable, which caused problems in certain system/usage configurations. This
+has now been fixed.
+
+https://github.com/restic/restic/issues/3382
+https://github.com/restic/restic/pull/3474

changelog/0.13.0_2022-03-26/issue-3464

@@ -0,0 +1,10 @@
+Enhancement: Skip lock creation on `forget` if `--no-lock` and `--dry-run`
+
+Restic used to silently ignore the `--no-lock` option of the `forget` command.
+
+It now skips creation of lock file in case both `--dry-run` and `--no-lock`
+are specified. If `--no-lock` option is specified without `--dry-run`, restic
+prints a warning message to stderr.
+
+https://github.com/restic/restic/issues/3464
+https://github.com/restic/restic/pull/3623

changelog/0.13.0_2022-03-26/issue-3490

@@ -0,0 +1,8 @@
+Enhancement: Support random subset by size in `check --read-data-subset`
+
+The `--read-data-subset` option of the `check` command now supports a third way
+of specifying the subset to check, namely `nS` where `n` is a size in bytes with
+suffix `S` as k/K, m/M, g/G or t/T.
+
+https://github.com/restic/restic/issues/3490
+https://github.com/restic/restic/pull/3548

changelog/0.13.0_2022-03-26/issue-3518

@@ -0,0 +1,8 @@
+Bugfix: Make `copy` command honor `--no-lock` for source repository
+
+The `copy` command previously did not respect the `--no-lock` option for the
+source repository, causing failures with read-only storage backends. This has
+now been fixed such that the option is now respected.
+
+https://github.com/restic/restic/issues/3518
+https://github.com/restic/restic/pull/3589

changelog/0.13.0_2022-03-26/issue-3541

@@ -0,0 +1,9 @@
+Enhancement: Improve handling of temporary B2 delete errors
+
+Deleting files on B2 could sometimes fail temporarily, which required restic to
+retry the delete operation. In some cases the file was deleted nevertheless,
+causing the retries and ultimately the restic command to fail. This has now been
+fixed.
+
+https://github.com/restic/restic/issues/3541
+https://github.com/restic/restic/pull/3544

changelog/0.13.0_2022-03-26/issue-3542

@@ -0,0 +1,8 @@
+Enhancement: Add file mode in symbolic notation to `ls --json`
+
+The `ls --json` command now provides the file mode in symbolic notation (using
+the `permissions` key), aligned with `find --json`.
+
+https://github.com/restic/restic/issues/3542
+https://github.com/restic/restic/pull/3573
+https://forum.restic.net/t/restic-ls-understanding-file-mode-with-json/4371

changelog/0.13.0_2022-03-26/issue-3556

@@ -0,0 +1,10 @@
+Bugfix: Fix hang with Backblaze B2 on SSL certificate authority error
+
+Previously, if a request failed with an SSL unknown certificate authority
+error, the B2 backend retried indefinitely and restic would appear to hang.
+
+This has now been fixed and restic instead fails with an error message.
+
+https://github.com/restic/restic/issues/3556
+https://github.com/restic/restic/issues/2355
+https://github.com/restic/restic/pull/3571

changelog/0.13.0_2022-03-26/issue-3601

@@ -0,0 +1,15 @@
+Bugfix: Fix rclone backend prematurely exiting when receiving SIGINT on Windows
+
+Previously, pressing Ctrl+C in a Windows console where restic was running with
+rclone as the backend would cause rclone to exit prematurely due to getting a
+`SIGINT` signal at the same time as restic. Restic would then wait for a long
+time for time with "unexpected EOF" and "rclone stdio connection already closed"
+errors.
+
+This has now been fixed by restic starting the rclone process detached from the
+console restic runs in (similar to starting processes in a new process group on
+Linux), which enables restic to gracefully clean up rclone (which now never gets
+the `SIGINT`).
+
+https://github.com/restic/restic/issues/3601
+https://github.com/restic/restic/pull/3602

changelog/0.13.0_2022-03-26/issue-3641

@@ -0,0 +1,14 @@
+Change: Ignore parent snapshot for `backup --stdin`
+
+Restic uses a parent snapshot to speed up directory scanning when performing
+backups, but this only wasted time and memory when the backup source is stdin
+(using the `--stdin` option of the `backup` command), since no directory scanning
+is performed in this case.
+
+Snapshots made with `backup --stdin` no longer have a parent snapshot, which allows
+restic to skip some startup operations and saves a bit of resources.
+
+The `--parent` option is still available for `backup --stdin`, but is now ignored.
+
+https://github.com/restic/restic/issues/3641
+https://github.com/restic/restic/pull/3645

changelog/0.13.0_2022-03-26/issue-3667

@@ -0,0 +1,8 @@
+Bugfix: The `mount` command now reports symlinks sizes
+
+Symlinks used to have size zero in restic mountpoints, confusing some
+third-party tools. They now have a size equal to the byte length of their
+target path, as required by POSIX.
+
+https://github.com/restic/restic/issues/3667
+https://github.com/restic/restic/pull/3668

changelog/0.13.0_2022-03-26/pull-2594

@@ -0,0 +1,7 @@
+Enhancement: Speed up the `restore --verify` command
+
+The `--verify` option lets the `restore` command verify the file content
+after it has restored a snapshot. The performance of this operation has
+now been improved by up to a factor of two.
+
+https://github.com/restic/restic/pull/2594

changelog/0.13.0_2022-03-26/pull-2816

@@ -0,0 +1,10 @@
+Enhancement: The `backup` command no longer updates file access times on Linux
+
+When reading files during backup, restic used to cause the operating system to
+update the files' access times. Note that this did not apply to filesystems with
+disabled file access times.
+
+Restic now instructs the operating system not to update the file access time,
+if the user running restic is the file owner or has root permissions.
+
+https://github.com/restic/restic/pull/2816

changelog/0.13.0_2022-03-26/pull-2880

@@ -0,0 +1,9 @@
+Enhancement: Make `recover` collect only unreferenced trees
+
+Previously, the `recover` command used to generate a snapshot containing *all*
+root trees, even those which were already referenced by a snapshot.
+
+This has been improved such that it now only processes trees not already
+referenced by any snapshot.
+
+https://github.com/restic/restic/pull/2880

changelog/0.13.0_2022-03-26/pull-3429

@@ -0,0 +1,12 @@
+Enhancement: Verify that new or modified keys are stored correctly
+
+When adding a new key or changing the password of a key, restic used to just
+create the new key (and remove the old one, when changing the password). There
+was no verification that the new key was stored correctly and works properly.
+As the repository cannot be decrypted without a valid key file, this could in
+rare cases cause the repository to become inaccessible.
+
+Restic now checks that new key files actually work before continuing. This
+can protect against some (rare) cases of hardware or storage problems.
+
+https://github.com/restic/restic/pull/3429

changelog/0.13.0_2022-03-26/pull-3436

@@ -0,0 +1,12 @@
+Enhancement: Improve local backend's resilience to (system) crashes
+
+Restic now ensures that files stored using the `local` backend are created
+atomically (that is, files are either stored completely or not at all). This
+ensures that no incomplete files are left behind even if restic is terminated
+while writing a file.
+
+In addition, restic now tries to ensure that the directory in the repository
+which contains a newly uploaded file is also written to disk. This can prevent
+missing files if the system crashes or the disk is not properly unmounted.
+
+https://github.com/restic/restic/pull/3436

changelog/0.13.0_2022-03-26/pull-3488

@@ -0,0 +1,9 @@
+Bugfix: `rebuild-index` failed if an index file was damaged
+
+Previously, the `rebuild-index` command would fail with an error if an index
+file was damaged or truncated. This has now been fixed.
+
+On older restic versions, a (slow) workaround is to use
+`rebuild-index --read-all-packs` or to manually delete the damaged index.
+
+https://github.com/restic/restic/pull/3488

changelog/0.13.0_2022-03-26/pull-3508

@@ -0,0 +1,10 @@
+Enhancement: Cache blobs read by the `dump` command
+
+When dumping a file using the `dump` command, restic did not cache blobs in any
+way, so even consecutive runs of the same blob were loaded from the repository
+again and again, slowing down the dump.
+
+Now, the caching mechanism already used by the `fuse` command is also used by
+the `dump` command. This makes dumping much faster, especially for sparse files.
+
+https://github.com/restic/restic/pull/3508

changelog/0.13.0_2022-03-26/pull-3514

@@ -0,0 +1,8 @@
+Enhancement: Support configurable timeout for the rclone backend
+
+A slow rclone backend could cause restic to time out while waiting for the
+repository to open. Restic now offers an `-o rclone.timeout` option to make
+this timeout configurable.
+
+https://github.com/restic/restic/issues/3511
+https://github.com/restic/restic/pull/3514

changelog/0.13.0_2022-03-26/pull-3519

@@ -0,0 +1,6 @@
+Change: Require Go 1.14 or newer
+
+Restic now requires Go 1.14 to build. This allows it to use new
+standard library features instead of an external dependency.
+
+https://github.com/restic/restic/issues/3519