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git-commit-vandalism/azure-pipelines.yml
Johannes Schindelin b819f1d2ce ci: parallelize testing on Windows 
The fact that Git's test suite is implemented in Unix shell script that
is as portable as we can muster, combined with the fact that Unix shell
scripting is foreign to Windows (and therefore has to be emulated),
results in pretty abysmal speed of the test suite on that platform, for
pretty much no other reason than that language choice.

For comparison: while the Linux build & test is typically done within
about 8 minutes, the Windows build & test typically lasts about 80
minutes in Azure Pipelines.

To help with that, let's use the Azure Pipeline feature where you can
parallelize jobs, make jobs depend on each other, and pass artifacts
between them.

The tests are distributed using the following heuristic: listing all
test scripts ordered by size in descending order (as a cheap way to
estimate the overall run time), every Nth script is run (where N is the
total number of parallel jobs), starting at the index corresponding to
the parallel job. This slicing is performed by a new function that is
added to the `test-tool`.

To optimize the overall runtime of the entire Pipeline, we need to move
the Windows jobs to the beginning (otherwise there would be a very
decent chance for the Pipeline to be run only the Windows build, while
all the parallel Windows test jobs wait for this single one).

We use Azure Pipelines Artifacts for both the minimal Git for Windows
SDK as well as the built executables, as deduplication and caching close
to the agents makes that really fast. For comparison: while downloading
and unpacking the minimal Git for Windows SDK via PowerShell takes only
one minute (down from anywhere between 2.5 to 7 when using a shallow
clone), uploading it as Pipeline Artifact takes less than 30s and
downloading and unpacking less than 20s (sometimes even as little as
only twelve seconds).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-29 09:26:47 -08:00

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resources:
- repo: self
fetchDepth: 1
jobs:
- job: windows_build
displayName: Windows Build
condition: succeeded()
pool: Hosted
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: $(gitfileshare.pwd)
- job: windows_test
displayName: Windows Test
dependsOn: windows_build
condition: succeeded()
pool: Hosted
timeoutInMinutes: 240
strategy:
parallel: 10
steps:
- powershell: |
if ("$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: $(gitfileshare.pwd)
- task: PublishTestResults@2
displayName: 'Publish Test Results **/TEST-*.xml'
inputs:
mergeTestResults: true
testRunTitle: 'windows'
platform: Windows
publishRunAttachments: false
condition: succeededOrFailed()
- task: PublishBuildArtifacts@1
displayName: 'Publish trash directories of failed tests'
condition: failed()
inputs:
PathtoPublish: t/failed-test-artifacts
ArtifactName: failed-test-artifacts
- job: linux_clang
displayName: linux-clang
condition: succeeded()
pool: Hosted Ubuntu 1604
steps:
- bash: |
test "$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: $(gitfileshare.pwd)
- task: PublishTestResults@2
displayName: 'Publish Test Results **/TEST-*.xml'
inputs:
mergeTestResults: true
testRunTitle: 'linux-clang'
platform: Linux
publishRunAttachments: false
condition: succeededOrFailed()
- task: PublishBuildArtifacts@1
displayName: 'Publish trash directories of failed tests'
condition: failed()
inputs:
PathtoPublish: t/failed-test-artifacts
ArtifactName: failed-test-artifacts
- job: linux_gcc
displayName: linux-gcc
condition: succeeded()
pool: Hosted Ubuntu 1604
steps:
- bash: |
test "$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: $(gitfileshare.pwd)
- task: PublishTestResults@2
displayName: 'Publish Test Results **/TEST-*.xml'
inputs:
mergeTestResults: true
testRunTitle: 'linux-gcc'
platform: Linux
publishRunAttachments: false
condition: succeededOrFailed()
- task: PublishBuildArtifacts@1
displayName: 'Publish trash directories of failed tests'
condition: failed()
inputs:
PathtoPublish: t/failed-test-artifacts
ArtifactName: failed-test-artifacts
- job: osx_clang
displayName: osx-clang
condition: succeeded()
pool: Hosted macOS
steps:
- bash: |
test "$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: $(gitfileshare.pwd)
- task: PublishTestResults@2
displayName: 'Publish Test Results **/TEST-*.xml'
inputs:
mergeTestResults: true
testRunTitle: 'osx-clang'
platform: macOS
publishRunAttachments: false
condition: succeededOrFailed()
- task: PublishBuildArtifacts@1
displayName: 'Publish trash directories of failed tests'
condition: failed()
inputs:
PathtoPublish: t/failed-test-artifacts
ArtifactName: failed-test-artifacts
- job: osx_gcc
displayName: osx-gcc
condition: succeeded()
pool: Hosted macOS
steps:
- bash: |
test "$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: $(gitfileshare.pwd)
- task: PublishTestResults@2
displayName: 'Publish Test Results **/TEST-*.xml'
inputs:
mergeTestResults: true
testRunTitle: 'osx-gcc'
platform: macOS
publishRunAttachments: false
condition: succeededOrFailed()
- task: PublishBuildArtifacts@1
displayName: 'Publish trash directories of failed tests'
condition: failed()
inputs:
PathtoPublish: t/failed-test-artifacts
ArtifactName: failed-test-artifacts
- job: gettext_poison
displayName: GETTEXT_POISON
condition: succeeded()
pool: Hosted Ubuntu 1604
steps:
- bash: |
test "$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: $(gitfileshare.pwd)
- task: PublishTestResults@2
displayName: 'Publish Test Results **/TEST-*.xml'
inputs:
mergeTestResults: true
testRunTitle: 'gettext-poison'
platform: Linux
publishRunAttachments: false
condition: succeededOrFailed()
- task: PublishBuildArtifacts@1
displayName: 'Publish trash directories of failed tests'
condition: failed()
inputs:
PathtoPublish: t/failed-test-artifacts
ArtifactName: failed-test-artifacts
- job: linux32
displayName: Linux32
condition: succeeded()
pool: Hosted Ubuntu 1604
steps:
- bash: |
test "$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="$MAKEFLAGS" bash -lxc ci/run-linux32-docker.sh || res=1
sudo chmod a+r t/out/TEST-*.xml
test ! -d t/failed-test-artifacts || sudo chmod a+r t/failed-test-artifacts
test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || res=1
exit $res
displayName: 'ci/run-linux32-docker.sh'
env:
GITFILESHAREPWD: $(gitfileshare.pwd)
- task: PublishTestResults@2
displayName: 'Publish Test Results **/TEST-*.xml'
inputs:
mergeTestResults: true
testRunTitle: 'linux32'
platform: Linux
publishRunAttachments: false
condition: succeededOrFailed()
- task: PublishBuildArtifacts@1
displayName: 'Publish trash directories of failed tests'
condition: failed()
inputs:
PathtoPublish: t/failed-test-artifacts
ArtifactName: failed-test-artifacts
- job: static_analysis
displayName: StaticAnalysis
condition: succeeded()
pool: Hosted Ubuntu 1604
steps:
- bash: |
test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
sudo apt-get update &&
sudo apt-get install -y coccinelle &&
export jobname=StaticAnalysis &&
ci/run-static-analysis.sh || exit 1
test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || exit 1
displayName: 'ci/run-static-analysis.sh'
env:
GITFILESHAREPWD: $(gitfileshare.pwd)
- job: documentation
displayName: Documentation
condition: succeeded()
pool: Hosted Ubuntu 1604
steps:
- bash: |
test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
sudo apt-get update &&
sudo apt-get install -y asciidoc xmlto asciidoctor &&
export ALREADY_HAVE_ASCIIDOCTOR=yes. &&
export jobname=Documentation &&
ci/test-documentation.sh || exit 1
test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || exit 1
displayName: 'ci/test-documentation.sh'
env:
GITFILESHAREPWD: $(gitfileshare.pwd)
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