Merge branch 'dd/ci-swap-azure-pipelines-with-github-actions'

Update the CI configuration to use GitHub Actions, retiring the one
based on Azure Pipelines.

* dd/ci-swap-azure-pipelines-with-github-actions:
  ci: let GitHub Actions upload failed tests' directories
  ci: add a problem matcher for GitHub Actions
  tests: when run in Bash, annotate test failures with file name/line number
  ci: retire the Azure Pipelines definition
  README: add a build badge for the GitHub Actions runs
  ci: configure GitHub Actions for CI/PR
  ci: run gem with sudo to install asciidoctor
  ci: explicit install all required packages
  ci: fix the `jobname` of the `GETTEXT_POISON` job
  ci/lib: set TERM environment variable if not exist
  ci/lib: allow running in GitHub Actions
  ci/lib: if CI type is unknown, show the environment variables

9 files changed, 309 insertions, 567 deletions

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000000..fd4df939b5
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,230 @@
+name: CI/PR
+
+on: [push, pull_request]
+
+env:
+  DEVELOPER: 1
+
+jobs:
+  windows-build:
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: download git-sdk-64-minimal
+      shell: bash
+      run: a=git-sdk-64-minimal && mkdir -p $a && curl -# https://wingit.blob.core.windows.net/ci-artifacts/$a.tar.xz | tar -C $a -xJf -
+    - name: build
+      shell: powershell
+      env:
+        HOME: ${{runner.workspace}}
+        MSYSTEM: MINGW64
+        NO_PERL: 1
+      run: |
+        & .\git-sdk-64-minimal\usr\bin\bash.exe -lc @"
+        printf '%s\n' /git-sdk-64-minimal/ >>.git/info/exclude
+
+          ci/make-test-artifacts.sh artifacts
+        "@
+    - name: upload build artifacts
+      uses: actions/upload-artifact@v1
+      with:
+        name: windows-artifacts
+        path: artifacts
+  windows-test:
+    runs-on: windows-latest
+    needs: [windows-build]
+    strategy:
+      matrix:
+        nr: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+    steps:
+    - uses: actions/checkout@v1
+    - name: download git-sdk-64-minimal
+      shell: bash
+      run: a=git-sdk-64-minimal && mkdir -p $a && curl -# https://wingit.blob.core.windows.net/ci-artifacts/$a.tar.xz | tar -C $a -xJf -
+    - name: download build artifacts
+      uses: actions/download-artifact@v1
+      with:
+        name: windows-artifacts
+        path: ${{github.workspace}}
+    - name: extract build artifacts
+      shell: bash
+      run: tar xf artifacts.tar.gz
+    - name: test
+      shell: powershell
+      run: |
+        & .\git-sdk-64-minimal\usr\bin\bash.exe -lc @"
+          # Let Git ignore the SDK
+          printf '%s\n' /git-sdk-64-minimal/ >>.git/info/exclude
+
+          ci/run-test-slice.sh ${{matrix.nr}} 10
+        "@
+    - name: ci/print-test-failures.sh
+      if: failure()
+      shell: powershell
+      run: |
+        & .\git-sdk-64-minimal\usr\bin\bash.exe -lc ci/print-test-failures.sh
+    - name: Upload failed tests' directories
+      if: failure() && env.FAILED_TEST_ARTIFACTS != ''
+      uses: actions/upload-artifact@v1
+      with:
+        name: failed-tests-windows
+        path: ${{env.FAILED_TEST_ARTIFACTS}}
+  vs-build:
+    env:
+      MSYSTEM: MINGW64
+      NO_PERL: 1
+      GIT_CONFIG_PARAMETERS: "'user.name=CI' 'user.email=ci@git'"
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: download git-sdk-64-minimal
+      shell: bash
+      run: a=git-sdk-64-minimal && mkdir -p $a && curl -# https://wingit.blob.core.windows.net/ci-artifacts/$a.tar.xz | tar -C $a -xJf -
+    - name: generate Visual Studio solution
+      shell: powershell
+      run: |
+        & .\git-sdk-64-minimal\usr\bin\bash.exe -lc @"
+          make NDEBUG=1 DEVELOPER=1 vcxproj
+        "@
+        if (!$?) { exit(1) }
+    - name: download vcpkg artifacts
+      shell: powershell
+      run: |
+        $urlbase = "https://dev.azure.com/git/git/_apis/build/builds"
+        $id = ((Invoke-WebRequest -UseBasicParsing "${urlbase}?definitions=9&statusFilter=completed&resultFilter=succeeded&`$top=1").content | ConvertFrom-JSON).value[0].id
+        $downloadUrl = ((Invoke-WebRequest -UseBasicParsing "${urlbase}/$id/artifacts").content | ConvertFrom-JSON).value[0].resource.downloadUrl
+        (New-Object Net.WebClient).DownloadFile($downloadUrl, "compat.zip")
+        Expand-Archive compat.zip -DestinationPath . -Force
+        Remove-Item compat.zip
+    - name: add msbuild to PATH
+      uses: microsoft/setup-msbuild@v1.0.0
+    - name: MSBuild
+      run: msbuild git.sln -property:Configuration=Release -property:Platform=x64 -maxCpuCount:4 -property:PlatformToolset=v142
+    - name: bundle artifact tar
+      shell: powershell
+      env:
+        MSVC: 1
+        VCPKG_ROOT: ${{github.workspace}}\compat\vcbuild\vcpkg
+      run: |
+        & compat\vcbuild\vcpkg_copy_dlls.bat release
+        if (!$?) { exit(1) }
+        & git-sdk-64-minimal\usr\bin\bash.exe -lc @"
+          mkdir -p artifacts &&
+          eval \"`$(make -n artifacts-tar INCLUDE_DLLS_IN_ARTIFACTS=YesPlease ARTIFACTS_DIRECTORY=artifacts 2>&1 | grep ^tar)\"
+        "@
+    - name: upload build artifacts
+      uses: actions/upload-artifact@v1
+      with:
+        name: vs-artifacts
+        path: artifacts
+  vs-test:
+    runs-on: windows-latest
+    needs: [vs-build]
+    strategy:
+      matrix:
+        nr: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+    steps:
+    - uses: actions/checkout@v1
+    - name: download git-64-portable
+      shell: bash
+      run: a=git-64-portable && mkdir -p $a && curl -# https://wingit.blob.core.windows.net/ci-artifacts/$a.tar.xz | tar -C $a -xJf -
+    - name: download build artifacts
+      uses: actions/download-artifact@v1
+      with:
+        name: vs-artifacts
+        path: ${{github.workspace}}
+    - name: extract build artifacts
+      shell: bash
+      run: tar xf artifacts.tar.gz
+    - name: test (parallel)
+      shell: powershell
+      env:
+        MSYSTEM: MINGW64
+        NO_SVN_TESTS: 1
+        GIT_TEST_SKIP_REBASE_P: 1
+      run: |
+        & git-64-portable\git-cmd.exe --command=usr\bin\bash.exe -lc @"
+          # Let Git ignore the SDK and the test-cache
+          printf '%s\n' /git-64-portable/ /test-cache/ >>.git/info/exclude
+
+          cd t &&
+          PATH=\"`$PWD/helper:`$PATH\" &&
+          test-tool.exe run-command testsuite --jobs=10 -V -x --write-junit-xml \
+                  `$(test-tool.exe path-utils slice-tests \
+                          ${{matrix.nr}} 10 t[0-9]*.sh)
+        "@
+  regular:
+    strategy:
+      matrix:
+        vector:
+          - jobname: linux-clang
+            cc: clang
+            pool: ubuntu-latest
+          - jobname: linux-gcc
+            cc: gcc
+            pool: ubuntu-latest
+          - jobname: osx-clang
+            cc: clang
+            pool: macos-latest
+          - jobname: osx-gcc
+            cc: gcc
+            pool: macos-latest
+          - jobname: GETTEXT_POISON
+            cc: gcc
+            pool: ubuntu-latest
+    env:
+      CC: ${{matrix.vector.cc}}
+      jobname: ${{matrix.vector.jobname}}
+    runs-on: ${{matrix.vector.pool}}
+    steps:
+    - uses: actions/checkout@v1
+    - run: ci/install-dependencies.sh
+    - run: ci/run-build-and-tests.sh
+    - run: ci/print-test-failures.sh
+      if: failure()
+    - name: Upload failed tests' directories
+      if: failure() && env.FAILED_TEST_ARTIFACTS != ''
+      uses: actions/upload-artifact@v1
+      with:
+        name: failed-tests-${{matrix.vector.jobname}}
+        path: ${{env.FAILED_TEST_ARTIFACTS}}
+  dockerized:
+    strategy:
+      matrix:
+        vector:
+        - jobname: linux-musl
+          image: alpine
+        - jobname: Linux32
+          image: daald/ubuntu32:xenial
+    env:
+      jobname: ${{matrix.vector.jobname}}
+    runs-on: ubuntu-latest
+    container: ${{matrix.vector.image}}
+    steps:
+    - uses: actions/checkout@v1
+    - run: ci/install-docker-dependencies.sh
+    - run: ci/run-build-and-tests.sh
+    - run: ci/print-test-failures.sh
+      if: failure()
+    - name: Upload failed tests' directories
+      if: failure() && env.FAILED_TEST_ARTIFACTS != ''
+      uses: actions/upload-artifact@v1
+      with:
+        name: failed-tests-${{matrix.vector.jobname}}
+        path: ${{env.FAILED_TEST_ARTIFACTS}}
+  static-analysis:
+    env:
+      jobname: StaticAnalysis
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - run: ci/install-dependencies.sh
+    - run: ci/run-static-analysis.sh
+  documentation:
+    env:
+      jobname: Documentation
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - run: ci/install-dependencies.sh
+    - run: ci/test-documentation.sh
diff --git a/.travis.yml b/.travis.yml
index 0cfc3c3428..05f3e3f8d7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,7 +16,7 @@ compiler:
 
 matrix:
   include:
-    - env: jobname=GIT_TEST_GETTEXT_POISON
+    - env: jobname=GETTEXT_POISON
       os: linux
       compiler:
       addons:
diff --git a/README.md b/README.md
index 9d4564c8aa..eb8115e6b0 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![Build Status](https://dev.azure.com/git/git/_apis/build/status/git.git)](https://dev.azure.com/git/git/_build/latest?definitionId=11)
+[![Build status](https://github.com/git/git/workflows/CI/PR/badge.svg)](https://github.com/git/git/actions?query=branch%3Amaster+event%3Apush)
 
 Git - fast, scalable, distributed revision control system
 =========================================================
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
deleted file mode 100644
index 11413f66f8..0000000000
--- a/azure-pipelines.yml
+++ /dev/null
@@ -1,558 +0,0 @@
-variables:
-  Agent.Source.Git.ShallowFetchDepth: 1
-
-jobs:
-- job: windows_build
-  displayName: Windows Build
-  condition: succeeded()
-  pool:
-    vmImage: windows-latest
-  timeoutInMinutes: 240
-  steps:
-  - powershell: |
-      if ("$GITFILESHAREPWD" -ne "" -and "$GITFILESHAREPWD" -ne "`$`(gitfileshare.pwd)") {
-        net use s: \\gitfileshare.file.core.windows.net\test-cache "$GITFILESHAREPWD" /user:AZURE\gitfileshare /persistent:no
-        cmd /c mklink /d "$(Build.SourcesDirectory)\test-cache" S:\
-      }
-    displayName: 'Mount test-cache'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - powershell: |
-      $urlbase = "https://dev.azure.com/git-for-windows/git/_apis/build/builds"
-      $id = ((Invoke-WebRequest -UseBasicParsing "${urlbase}?definitions=22&statusFilter=completed&resultFilter=succeeded&`$top=1").content | ConvertFrom-JSON).value[0].id
-      $downloadUrl = ((Invoke-WebRequest -UseBasicParsing "${urlbase}/$id/artifacts").content | ConvertFrom-JSON).value[1].resource.downloadUrl
-      (New-Object Net.WebClient).DownloadFile($downloadUrl,"git-sdk-64-minimal.zip")
-      Expand-Archive git-sdk-64-minimal.zip -DestinationPath . -Force
-      Remove-Item git-sdk-64-minimal.zip
-
-      # Let Git ignore the SDK and the test-cache
-      "/git-sdk-64-minimal/`n/test-cache/`n" | Out-File -NoNewLine -Encoding ascii -Append "$(Build.SourcesDirectory)\.git\info\exclude"
-    displayName: 'Download git-sdk-64-minimal'
-  - powershell: |
-      & git-sdk-64-minimal\usr\bin\bash.exe -lc @"
-        ci/make-test-artifacts.sh artifacts
-      "@
-      if (!$?) { exit(1) }
-    displayName: Build
-    env:
-      HOME: $(Build.SourcesDirectory)
-      MSYSTEM: MINGW64
-      DEVELOPER: 1
-      NO_PERL: 1
-  - task: PublishPipelineArtifact@0
-    displayName: 'Publish Pipeline Artifact: test artifacts'
-    inputs:
-      artifactName: 'windows-artifacts'
-      targetPath: '$(Build.SourcesDirectory)\artifacts'
-  - task: PublishPipelineArtifact@0
-    displayName: 'Publish Pipeline Artifact: git-sdk-64-minimal'
-    inputs:
-      artifactName: 'git-sdk-64-minimal'
-      targetPath: '$(Build.SourcesDirectory)\git-sdk-64-minimal'
-  - powershell: |
-      if ("$GITFILESHAREPWD" -ne "" -and "$GITFILESHAREPWD" -ne "`$`(gitfileshare.pwd)") {
-        cmd /c rmdir "$(Build.SourcesDirectory)\test-cache"
-      }
-    displayName: 'Unmount test-cache'
-    condition: true
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-
-- job: windows_test
-  displayName: Windows Test
-  dependsOn: windows_build
-  condition: succeeded()
-  pool:
-    vmImage: windows-latest
-  timeoutInMinutes: 240
-  strategy:
-    parallel: 10
-  steps:
-  - powershell: |
-      if ("$GITFILESHAREPWD" -ne "" -and "$GITFILESHAREPWD" -ne "`$`(gitfileshare.pwd)") {
-        net use s: \\gitfileshare.file.core.windows.net\test-cache "$GITFILESHAREPWD" /user:AZURE\gitfileshare /persistent:no
-        cmd /c mklink /d "$(Build.SourcesDirectory)\test-cache" S:\
-      }
-    displayName: 'Mount test-cache'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: DownloadPipelineArtifact@0
-    displayName: 'Download Pipeline Artifact: test artifacts'
-    inputs:
-      artifactName: 'windows-artifacts'
-      targetPath: '$(Build.SourcesDirectory)'
-  - task: DownloadPipelineArtifact@0
-    displayName: 'Download Pipeline Artifact: git-sdk-64-minimal'
-    inputs:
-      artifactName: 'git-sdk-64-minimal'
-      targetPath: '$(Build.SourcesDirectory)\git-sdk-64-minimal'
-  - powershell: |
-      & git-sdk-64-minimal\usr\bin\bash.exe -lc @"
-        test -f artifacts.tar.gz || {
-          echo No test artifacts found\; skipping >&2
-          exit 0
-        }
-        tar xf artifacts.tar.gz || exit 1
-
-        # Let Git ignore the SDK and the test-cache
-        printf '%s\n' /git-sdk-64-minimal/ /test-cache/ >>.git/info/exclude
-
-        ci/run-test-slice.sh `$SYSTEM_JOBPOSITIONINPHASE `$SYSTEM_TOTALJOBSINPHASE || {
-          ci/print-test-failures.sh
-          exit 1
-        }
-      "@
-      if (!$?) { exit(1) }
-    displayName: 'Test (parallel)'
-    env:
-      HOME: $(Build.SourcesDirectory)
-      MSYSTEM: MINGW64
-      NO_SVN_TESTS: 1
-      GIT_TEST_SKIP_REBASE_P: 1
-  - powershell: |
-      if ("$GITFILESHAREPWD" -ne "" -and "$GITFILESHAREPWD" -ne "`$`(gitfileshare.pwd)") {
-        cmd /c rmdir "$(Build.SourcesDirectory)\test-cache"
-      }
-    displayName: 'Unmount test-cache'
-    condition: true
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: PublishTestResults@2
-    displayName: 'Publish Test Results **/TEST-*.xml'
-    inputs:
-      mergeTestResults: true
-      testRunTitle: 'windows'
-      platform: Windows
-      publishRunAttachments: false
-    condition: succeededOrFailed()
-  - task: PublishBuildArtifacts@1
-    displayName: 'Publish trash directories of failed tests'
-    condition: failed()
-    inputs:
-      PathtoPublish: t/failed-test-artifacts
-      ArtifactName: failed-test-artifacts
-
-- job: vs_build
-  displayName: Visual Studio Build
-  condition: succeeded()
-  pool:
-    vmImage: windows-latest
-  timeoutInMinutes: 240
-  steps:
-  - powershell: |
-      if ("$GITFILESHAREPWD" -ne "" -and "$GITFILESHAREPWD" -ne "`$`(gitfileshare.pwd)") {
-        net use s: \\gitfileshare.file.core.windows.net\test-cache "$GITFILESHAREPWD" /user:AZURE\gitfileshare /persistent:no
-        cmd /c mklink /d "$(Build.SourcesDirectory)\test-cache" S:\
-      }
-    displayName: 'Mount test-cache'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - powershell: |
-      $urlbase = "https://dev.azure.com/git-for-windows/git/_apis/build/builds"
-      $id = ((Invoke-WebRequest -UseBasicParsing "${urlbase}?definitions=22&statusFilter=completed&resultFilter=succeeded&`$top=1").content | ConvertFrom-JSON).value[0].id
-      $downloadUrl = ((Invoke-WebRequest -UseBasicParsing "${urlbase}/$id/artifacts").content | ConvertFrom-JSON).value[1].resource.downloadUrl
-      (New-Object Net.WebClient).DownloadFile($downloadUrl,"git-sdk-64-minimal.zip")
-      Expand-Archive git-sdk-64-minimal.zip -DestinationPath . -Force
-      Remove-Item git-sdk-64-minimal.zip
-
-      # Let Git ignore the SDK and the test-cache
-      "/git-sdk-64-minimal/`n/test-cache/`n" | Out-File -NoNewLine -Encoding ascii -Append "$(Build.SourcesDirectory)\.git\info\exclude"
-    displayName: 'Download git-sdk-64-minimal'
-  - powershell: |
-      & git-sdk-64-minimal\usr\bin\bash.exe -lc @"
-        make NDEBUG=1 DEVELOPER=1 vcxproj
-      "@
-      if (!$?) { exit(1) }
-    displayName: Generate Visual Studio Solution
-    env:
-      HOME: $(Build.SourcesDirectory)
-      MSYSTEM: MINGW64
-      DEVELOPER: 1
-      NO_PERL: 1
-      GIT_CONFIG_PARAMETERS: "'user.name=CI' 'user.email=ci@git'"
-  - powershell: |
-      $urlbase = "https://dev.azure.com/git/git/_apis/build/builds"
-      $id = ((Invoke-WebRequest -UseBasicParsing "${urlbase}?definitions=9&statusFilter=completed&resultFilter=succeeded&`$top=1").content | ConvertFrom-JSON).value[0].id
-      $downloadUrl = ((Invoke-WebRequest -UseBasicParsing "${urlbase}/$id/artifacts").content | ConvertFrom-JSON).value[0].resource.downloadUrl
-      (New-Object Net.WebClient).DownloadFile($downloadUrl, "compat.zip")
-      Expand-Archive compat.zip -DestinationPath . -Force
-      Remove-Item compat.zip
-    displayName: 'Download vcpkg artifacts'
-  - task: MSBuild@1
-    inputs:
-      solution: git.sln
-      platform: x64
-      configuration: Release
-      maximumCpuCount: 4
-      msbuildArguments: /p:PlatformToolset=v142
-  - powershell: |
-      & compat\vcbuild\vcpkg_copy_dlls.bat release
-      if (!$?) { exit(1) }
-      & git-sdk-64-minimal\usr\bin\bash.exe -lc @"
-        mkdir -p artifacts &&
-        eval \"`$(make -n artifacts-tar INCLUDE_DLLS_IN_ARTIFACTS=YesPlease ARTIFACTS_DIRECTORY=artifacts | grep ^tar)\"
-      "@
-      if (!$?) { exit(1) }
-    displayName: Bundle artifact tar
-    env:
-      HOME: $(Build.SourcesDirectory)
-      MSYSTEM: MINGW64
-      DEVELOPER: 1
-      NO_PERL: 1
-      MSVC: 1
-      VCPKG_ROOT: $(Build.SourcesDirectory)\compat\vcbuild\vcpkg
-  - powershell: |
-      $tag = (Invoke-WebRequest -UseBasicParsing "https://gitforwindows.org/latest-tag.txt").content
-      $version = (Invoke-WebRequest -UseBasicParsing "https://gitforwindows.org/latest-version.txt").content
-      $url = "https://github.com/git-for-windows/git/releases/download/${tag}/PortableGit-${version}-64-bit.7z.exe"
-      (New-Object Net.WebClient).DownloadFile($url,"PortableGit.exe")
-      & .\PortableGit.exe -y -oartifacts\PortableGit
-      # Wait until it is unpacked
-      while (-not @(Remove-Item -ErrorAction SilentlyContinue PortableGit.exe; $?)) { sleep 1 }
-    displayName: Download & extract portable Git
-  - task: PublishPipelineArtifact@0
-    displayName: 'Publish Pipeline Artifact: MSVC test artifacts'
-    inputs:
-      artifactName: 'vs-artifacts'
-      targetPath: '$(Build.SourcesDirectory)\artifacts'
-  - powershell: |
-      if ("$GITFILESHAREPWD" -ne "" -and "$GITFILESHAREPWD" -ne "`$`(gitfileshare.pwd)") {
-        cmd /c rmdir "$(Build.SourcesDirectory)\test-cache"
-      }
-    displayName: 'Unmount test-cache'
-    condition: true
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-
-- job: vs_test
-  displayName: Visual Studio Test
-  dependsOn: vs_build
-  condition: succeeded()
-  pool:
-    vmImage: windows-latest
-  timeoutInMinutes: 240
-  strategy:
-    parallel: 10
-  steps:
-  - powershell: |
-      if ("$GITFILESHAREPWD" -ne "" -and "$GITFILESHAREPWD" -ne "`$`(gitfileshare.pwd)") {
-        net use s: \\gitfileshare.file.core.windows.net\test-cache "$GITFILESHAREPWD" /user:AZURE\gitfileshare /persistent:no
-        cmd /c mklink /d "$(Build.SourcesDirectory)\test-cache" S:\
-      }
-    displayName: 'Mount test-cache'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: DownloadPipelineArtifact@0
-    displayName: 'Download Pipeline Artifact: VS test artifacts'
-    inputs:
-      artifactName: 'vs-artifacts'
-      targetPath: '$(Build.SourcesDirectory)'
-  - powershell: |
-      & PortableGit\git-cmd.exe --command=usr\bin\bash.exe -lc @"
-        test -f artifacts.tar.gz || {
-          echo No test artifacts found\; skipping >&2
-          exit 0
-        }
-        tar xf artifacts.tar.gz || exit 1
-
-        # Let Git ignore the SDK and the test-cache
-        printf '%s\n' /PortableGit/ /test-cache/ >>.git/info/exclude
-
-        cd t &&
-        PATH=\"`$PWD/helper:`$PATH\" &&
-        test-tool.exe run-command testsuite --jobs=10 -V -x --write-junit-xml \
-                `$(test-tool.exe path-utils slice-tests \
-                        `$SYSTEM_JOBPOSITIONINPHASE `$SYSTEM_TOTALJOBSINPHASE t[0-9]*.sh)
-      "@
-      if (!$?) { exit(1) }
-    displayName: 'Test (parallel)'
-    env:
-      HOME: $(Build.SourcesDirectory)
-      MSYSTEM: MINGW64
-      NO_SVN_TESTS: 1
-      GIT_TEST_SKIP_REBASE_P: 1
-  - powershell: |
-      if ("$GITFILESHAREPWD" -ne "" -and "$GITFILESHAREPWD" -ne "`$`(gitfileshare.pwd)") {
-        cmd /c rmdir "$(Build.SourcesDirectory)\test-cache"
-      }
-    displayName: 'Unmount test-cache'
-    condition: true
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: PublishTestResults@2
-    displayName: 'Publish Test Results **/TEST-*.xml'
-    inputs:
-      mergeTestResults: true
-      testRunTitle: 'vs'
-      platform: Windows
-      publishRunAttachments: false
-    condition: succeededOrFailed()
-  - task: PublishBuildArtifacts@1
-    displayName: 'Publish trash directories of failed tests'
-    condition: failed()
-    inputs:
-      PathtoPublish: t/failed-test-artifacts
-      ArtifactName: failed-vs-test-artifacts
-
-- job: linux_clang
-  displayName: linux-clang
-  condition: succeeded()
-  pool:
-    vmImage: ubuntu-latest
-  steps:
-  - bash: |
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
-
-       sudo apt-get update &&
-       sudo apt-get -y install git gcc make libssl-dev libcurl4-openssl-dev libexpat-dev tcl tk gettext git-email zlib1g-dev apache2-bin &&
-
-       export CC=clang || exit 1
-
-       ci/install-dependencies.sh || exit 1
-       ci/run-build-and-tests.sh || {
-           ci/print-test-failures.sh
-           exit 1
-       }
-
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || exit 1
-    displayName: 'ci/run-build-and-tests.sh'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: PublishTestResults@2
-    displayName: 'Publish Test Results **/TEST-*.xml'
-    inputs:
-      mergeTestResults: true
-      testRunTitle: 'linux-clang'
-      platform: Linux
-      publishRunAttachments: false
-    condition: succeededOrFailed()
-  - task: PublishBuildArtifacts@1
-    displayName: 'Publish trash directories of failed tests'
-    condition: failed()
-    inputs:
-      PathtoPublish: t/failed-test-artifacts
-      ArtifactName: failed-test-artifacts
-
-- job: linux_gcc
-  displayName: linux-gcc
-  condition: succeeded()
-  pool:
-    vmImage: ubuntu-latest
-  steps:
-  - bash: |
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
-
-       sudo add-apt-repository ppa:ubuntu-toolchain-r/test &&
-       sudo apt-get update &&
-       sudo apt-get -y install git gcc make libssl-dev libcurl4-openssl-dev libexpat-dev tcl tk gettext git-email zlib1g-dev apache2 language-pack-is git-svn gcc-8 || exit 1
-
-       ci/install-dependencies.sh || exit 1
-       ci/run-build-and-tests.sh || {
-           ci/print-test-failures.sh
-           exit 1
-       }
-
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || exit 1
-    displayName: 'ci/run-build-and-tests.sh'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: PublishTestResults@2
-    displayName: 'Publish Test Results **/TEST-*.xml'
-    inputs:
-      mergeTestResults: true
-      testRunTitle: 'linux-gcc'
-      platform: Linux
-      publishRunAttachments: false
-    condition: succeededOrFailed()
-  - task: PublishBuildArtifacts@1
-    displayName: 'Publish trash directories of failed tests'
-    condition: failed()
-    inputs:
-      PathtoPublish: t/failed-test-artifacts
-      ArtifactName: failed-test-artifacts
-
-- job: osx_clang
-  displayName: osx-clang
-  condition: succeeded()
-  pool:
-    vmImage: macOS-latest
-  steps:
-  - bash: |
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
-
-       export CC=clang
-
-       ci/install-dependencies.sh || exit 1
-       ci/run-build-and-tests.sh || {
-           ci/print-test-failures.sh
-           exit 1
-       }
-
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || umount "$HOME/test-cache" || exit 1
-    displayName: 'ci/run-build-and-tests.sh'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: PublishTestResults@2
-    displayName: 'Publish Test Results **/TEST-*.xml'
-    inputs:
-      mergeTestResults: true
-      testRunTitle: 'osx-clang'
-      platform: macOS
-      publishRunAttachments: false
-    condition: succeededOrFailed()
-  - task: PublishBuildArtifacts@1
-    displayName: 'Publish trash directories of failed tests'
-    condition: failed()
-    inputs:
-      PathtoPublish: t/failed-test-artifacts
-      ArtifactName: failed-test-artifacts
-
-- job: osx_gcc
-  displayName: osx-gcc
-  condition: succeeded()
-  pool:
-    vmImage: macOS-latest
-  steps:
-  - bash: |
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
-
-       ci/install-dependencies.sh || exit 1
-       ci/run-build-and-tests.sh || {
-           ci/print-test-failures.sh
-           exit 1
-       }
-
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || umount "$HOME/test-cache" || exit 1
-    displayName: 'ci/run-build-and-tests.sh'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: PublishTestResults@2
-    displayName: 'Publish Test Results **/TEST-*.xml'
-    inputs:
-      mergeTestResults: true
-      testRunTitle: 'osx-gcc'
-      platform: macOS
-      publishRunAttachments: false
-    condition: succeededOrFailed()
-  - task: PublishBuildArtifacts@1
-    displayName: 'Publish trash directories of failed tests'
-    condition: failed()
-    inputs:
-      PathtoPublish: t/failed-test-artifacts
-      ArtifactName: failed-test-artifacts
-
-- job: gettext_poison
-  displayName: GETTEXT_POISON
-  condition: succeeded()
-  pool:
-    vmImage: ubuntu-latest
-  steps:
-  - bash: |
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
-
-       sudo apt-get update &&
-       sudo apt-get -y install git gcc make libssl-dev libcurl4-openssl-dev libexpat-dev tcl tk gettext git-email zlib1g-dev &&
-
-       export jobname=GETTEXT_POISON || exit 1
-
-       ci/run-build-and-tests.sh || {
-           ci/print-test-failures.sh
-           exit 1
-       }
-
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || exit 1
-    displayName: 'ci/run-build-and-tests.sh'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: PublishTestResults@2
-    displayName: 'Publish Test Results **/TEST-*.xml'
-    inputs:
-      mergeTestResults: true
-      testRunTitle: 'gettext-poison'
-      platform: Linux
-      publishRunAttachments: false
-    condition: succeededOrFailed()
-  - task: PublishBuildArtifacts@1
-    displayName: 'Publish trash directories of failed tests'
-    condition: failed()
-    inputs:
-      PathtoPublish: t/failed-test-artifacts
-      ArtifactName: failed-test-artifacts
-
-- job: linux32
-  displayName: Linux32
-  condition: succeeded()
-  pool:
-    vmImage: ubuntu-latest
-  steps:
-  - bash: |
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
-
-       res=0
-       sudo AGENT_OS="$AGENT_OS" BUILD_BUILDNUMBER="$BUILD_BUILDNUMBER" BUILD_REPOSITORY_URI="$BUILD_REPOSITORY_URI" BUILD_SOURCEBRANCH="$BUILD_SOURCEBRANCH" BUILD_SOURCEVERSION="$BUILD_SOURCEVERSION" SYSTEM_PHASENAME="$SYSTEM_PHASENAME" SYSTEM_TASKDEFINITIONSURI="$SYSTEM_TASKDEFINITIONSURI" SYSTEM_TEAMPROJECT="$SYSTEM_TEAMPROJECT" CC=$CC MAKEFLAGS="$MAKEFLAGS" jobname=Linux32 bash -lxc ci/run-docker.sh || res=1
-
-       sudo chmod a+r t/out/TEST-*.xml
-       test ! -d t/failed-test-artifacts || sudo chmod a+r t/failed-test-artifacts
-
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || res=1
-       exit $res
-    displayName: 'jobname=Linux32 ci/run-docker.sh'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-  - task: PublishTestResults@2
-    displayName: 'Publish Test Results **/TEST-*.xml'
-    inputs:
-      mergeTestResults: true
-      testRunTitle: 'linux32'
-      platform: Linux
-      publishRunAttachments: false
-    condition: succeededOrFailed()
-  - task: PublishBuildArtifacts@1
-    displayName: 'Publish trash directories of failed tests'
-    condition: failed()
-    inputs:
-      PathtoPublish: t/failed-test-artifacts
-      ArtifactName: failed-test-artifacts
-
-- job: static_analysis
-  displayName: StaticAnalysis
-  condition: succeeded()
-  pool:
-    vmImage: ubuntu-latest
-  steps:
-  - bash: |
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
-
-       sudo apt-get update &&
-       sudo apt-get install -y coccinelle libcurl4-openssl-dev libssl-dev libexpat-dev gettext &&
-
-       export jobname=StaticAnalysis &&
-
-       ci/run-static-analysis.sh || exit 1
-
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || exit 1
-    displayName: 'ci/run-static-analysis.sh'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
-
-- job: documentation
-  displayName: Documentation
-  condition: succeeded()
-  pool:
-    vmImage: ubuntu-latest
-  steps:
-  - bash: |
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
-
-       sudo apt-get update &&
-       sudo apt-get install -y asciidoc xmlto asciidoctor docbook-xsl-ns &&
-
-       export ALREADY_HAVE_ASCIIDOCTOR=yes. &&
-       export jobname=Documentation &&
-
-       ci/test-documentation.sh || exit 1
-
-       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || exit 1
-    displayName: 'ci/test-documentation.sh'
-    env:
-      GITFILESHAREPWD: $(gitfileshare.pwd)
diff --git a/ci/git-problem-matcher.json b/ci/git-problem-matcher.json
new file mode 100644
index 0000000000..506dfbd97f
--- /dev/null
+++ b/ci/git-problem-matcher.json
@@ -0,0 +1,16 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "git-test-suite",
+            "pattern": [
+                {
+                    "regexp": "^([^ :]+\\.sh):(\\d+): (error|warning|info):\\s+(.*)$",
+                    "file": 1,
+                    "line": 2,
+                    "severity": 3,
+                    "message": 4
+                }
+            ]
+        }
+    ]
+}
diff --git a/ci/install-dependencies.sh b/ci/install-dependencies.sh
index 497fd32ca8..0229a77f7d 100755
--- a/ci/install-dependencies.sh
+++ b/ci/install-dependencies.sh
@@ -7,12 +7,16 @@
 
 P4WHENCE=http://filehost.perforce.com/perforce/r$LINUX_P4_VERSION
 LFSWHENCE=https://github.com/github/git-lfs/releases/download/v$LINUX_GIT_LFS_VERSION
+UBUNTU_COMMON_PKGS="make libssl-dev libcurl4-openssl-dev libexpat-dev
+ tcl tk gettext zlib1g-dev perl-modules liberror-perl libauthen-sasl-perl
+ libemail-valid-perl libio-socket-ssl-perl libnet-smtp-ssl-perl"
 
 case "$jobname" in
 linux-clang|linux-gcc)
 	sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
 	sudo apt-get -q update
-	sudo apt-get -q -y install language-pack-is libsvn-perl apache2
+	sudo apt-get -q -y install language-pack-is libsvn-perl apache2 \
+		$UBUNTU_COMMON_PKGS
 	case "$jobname" in
 	linux-gcc)
 		sudo apt-get -q -y install gcc-8
@@ -59,14 +63,18 @@ osx-clang|osx-gcc)
 StaticAnalysis)
 	sudo apt-get -q update
 	sudo apt-get -q -y install coccinelle libcurl4-openssl-dev libssl-dev \
-		libexpat-dev gettext
+		libexpat-dev gettext make
 	;;
 Documentation)
 	sudo apt-get -q update
-	sudo apt-get -q -y install asciidoc xmlto docbook-xsl-ns
+	sudo apt-get -q -y install asciidoc xmlto docbook-xsl-ns make
 
 	test -n "$ALREADY_HAVE_ASCIIDOCTOR" ||
-	gem install --version 1.5.8 asciidoctor
+	sudo gem install --version 1.5.8 asciidoctor
+	;;
+linux-gcc-4.8|GETTEXT_POISON)
+	sudo apt-get -q update
+	sudo apt-get -q -y install $UBUNTU_COMMON_PKGS
 	;;
 esac
 
diff --git a/ci/lib.sh b/ci/lib.sh
index 87cd29bab6..dac36886e3 100755
--- a/ci/lib.sh
+++ b/ci/lib.sh
@@ -34,7 +34,7 @@ save_good_tree () {
 # successfully before (e.g. because the branch got rebased, changing only
 # the commit messages).
 skip_good_tree () {
-	if test "$TRAVIS_DEBUG_MODE" = true
+	if test "$TRAVIS_DEBUG_MODE" = true || test true = "$GITHUB_ACTIONS"
 	then
 		return
 	fi
@@ -79,6 +79,9 @@ check_unignored_build_artifacts ()
 	}
 }
 
+# GitHub Action doesn't set TERM, which is required by tput
+export TERM=${TERM:-dumb}
+
 # Clear MAKEFLAGS that may come from the outside world.
 export MAKEFLAGS=
 
@@ -136,8 +139,32 @@ then
 	MAKEFLAGS="$MAKEFLAGS --jobs=10"
 	test windows_nt != "$CI_OS_NAME" ||
 	GIT_TEST_OPTS="--no-chain-lint --no-bin-wrappers $GIT_TEST_OPTS"
+elif test true = "$GITHUB_ACTIONS"
+then
+	CI_TYPE=github-actions
+	CI_BRANCH="$GITHUB_REF"
+	CI_COMMIT="$GITHUB_SHA"
+	CI_OS_NAME="$(echo "$RUNNER_OS" | tr A-Z a-z)"
+	test macos != "$CI_OS_NAME" || CI_OS_NAME=osx
+	CI_REPO_SLUG="$GITHUB_REPOSITORY"
+	CI_JOB_ID="$GITHUB_RUN_ID"
+	CC="${CC:-gcc}"
+
+	cache_dir="$HOME/none"
+
+	export GIT_PROVE_OPTS="--timer --jobs 10"
+	export GIT_TEST_OPTS="--verbose-log -x"
+	MAKEFLAGS="$MAKEFLAGS --jobs=10"
+	test windows != "$CI_OS_NAME" ||
+	GIT_TEST_OPTS="--no-chain-lint --no-bin-wrappers $GIT_TEST_OPTS"
+
+	# https://github.com/actions/toolkit/blob/master/docs/commands.md#problem-matchers
+	echo "::add-matcher::ci/git-problem-matcher.json"
+	test linux-musl = "$jobname" ||
+	MAKEFLAGS="$MAKEFLAGS TEST_SHELL_PATH=/bin/sh"
 else
 	echo "Could not identify CI type" >&2
+	env >&2
 	exit 1
 fi
 
@@ -195,7 +222,7 @@ osx-clang|osx-gcc)
 	# Travis CI OS X
 	export GIT_SKIP_TESTS="t9810 t9816"
 	;;
-GIT_TEST_GETTEXT_POISON)
+GETTEXT_POISON)
 	export GIT_TEST_GETTEXT_POISON=true
 	;;
 Linux32)
diff --git a/ci/print-test-failures.sh b/ci/print-test-failures.sh
index e688a26f0d..92a983a265 100755
--- a/ci/print-test-failures.sh
+++ b/ci/print-test-failures.sh
@@ -46,6 +46,13 @@ do
 			mv "$trash_dir" failed-test-artifacts
 			continue
 			;;
+		github-actions)
+			mkdir -p failed-test-artifacts
+			echo "::set-env name=FAILED_TEST_ARTIFACTS::t/failed-test-artifacts"
+			cp "${TEST_EXIT%.exit}.out" failed-test-artifacts/
+			tar czf failed-test-artifacts/"$test_name".trash.tar.gz "$trash_dir"
+			continue
+			;;
 		*)
 			echo "Unhandled CI type: $CI_TYPE" >&2
 			exit 1
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 0bb1105ec3..13ba00d508 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -675,6 +675,18 @@ die () {
 	fi
 }
 
+file_lineno () {
+	test -z "$GIT_TEST_FRAMEWORK_SELFTEST" && test -n "$BASH" || return 0
+	local i
+	for i in ${!BASH_SOURCE[*]}
+	do
+		case $i,"${BASH_SOURCE[$i]##*/}" in
+		0,t[0-9]*.sh) echo "t/${BASH_SOURCE[$i]}:$LINENO: ${1+$1: }"; return;;
+		*,t[0-9]*.sh) echo "t/${BASH_SOURCE[$i]}:${BASH_LINENO[$(($i-1))]}: ${1+$1: }"; return;;
+		esac
+	done
+}
+
 GIT_EXIT_OK=
 trap 'die' EXIT
 # Disable '-x' tracing, because with some shells, notably dash, it
@@ -720,7 +732,7 @@ test_failure_ () {
 		write_junit_xml_testcase "$1" "      $junit_insert"
 	fi
 	test_failure=$(($test_failure + 1))
-	say_color error "not ok $test_count - $1"
+	say_color error "$(file_lineno error)not ok $test_count - $1"
 	shift
 	printf '%s\n' "$*" | sed -e 's/^/#	/'
 	test "$immediate" = "" || { finalize_junit_xml; GIT_EXIT_OK=t; exit 1; }