azure: use bash scripts across all platforms

Right now, we maintain semantically equivalent build scripts in
both Bash and Powershell to support both Windows and non-Windows
hosts. Azure Pipelines supports Bash on Windows, too, via Git for
Windows, and as such it's not really required to maintain the
Powershell scripts at all.

Remove them to reduce our own maintenance burden.

azure-pipelines.yml

@@ -78,7 +78,7 @@ jobs:
   displayName: 'Windows (amd64; Visual Studio)'
   pool: Hosted
   steps:
-  - template: azure-pipelines/powershell.yml
+  - template: azure-pipelines/bash.yml
     parameters:
       environmentVariables:
         CMAKE_GENERATOR: Visual Studio 12 2013 Win64
@@ -88,7 +88,7 @@ jobs:
   displayName: 'Windows (x86; Visual Studio)'
   pool: Hosted
   steps:
-  - template: azure-pipelines/powershell.yml
+  - template: azure-pipelines/bash.yml
     parameters:
       environmentVariables:
         CMAKE_GENERATOR: Visual Studio 12 2013
@@ -103,7 +103,7 @@ jobs:
     env:
       TEMP: $(Agent.TempDirectory)
       ARCH: amd64
-  - template: azure-pipelines/powershell.yml
+  - template: azure-pipelines/bash.yml
     parameters:
       environmentVariables:
         BUILD_PATH: $(Agent.TempDirectory)\mingw64\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files (x86)\CMake\bin
@@ -120,7 +120,7 @@ jobs:
     env:
       TEMP: $(Agent.TempDirectory)
       ARCH: x86
-  - template: azure-pipelines/powershell.yml
+  - template: azure-pipelines/bash.yml
     parameters:
       environmentVariables:
         BUILD_PATH: $(Agent.TempDirectory)\mingw32\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files (x86)\CMake\bin

azure-pipelines/build.ps1

-Set-StrictMode -Version Latest
-
-$ErrorActionPreference = "Stop"
-$PSDefaultParameterValues['*:ErrorAction'] = 'Stop'
-
-if ($Env:SOURCE_DIR) { $SourceDirectory = $Env:SOURCE_DIR } else { $SourceDirectory = Split-Path (Split-Path $MyInvocation.MyCommand.Path -Parent) -Parent }
-$BuildDirectory = $(Get-Location).Path
-
-Write-Host "Source directory: ${SourceDirectory}"
-Write-Host "Build directory:  ${BuildDirectory}"
-Write-Host ""
-Write-Host "Operating system version:"
-Get-CimInstance Win32_OperatingSystem | Select-Object Caption, Version, ServicePackMajorVersion, BuildNumber, OSArchitecture | Format-List
-Write-Host "PATH: ${Env:PATH}"
-Write-Host ""
-
-Write-Host "##############################################################################"
-Write-Host "## Configuring build environment"
-Write-Host "##############################################################################"
-
-Invoke-Expression "cmake ${SourceDirectory} -DBUILD_EXAMPLES=ON -DBUILD_FUZZERS=ON -DUSE_STANDALONE_FUZZERS=ON -DENABLE_WERROR=ON -G '${Env:CMAKE_GENERATOR}' ${Env:CMAKE_OPTIONS}"
-if ($LastExitCode -ne 0) { [Environment]::Exit($LastExitCode) }
-
-Write-Host ""
-Write-Host "##############################################################################"
-Write-Host "## Building libgit2"
-Write-Host "##############################################################################"
-
-cmake --build .
-if ($LastExitCode -ne 0) { [Environment]::Exit($LastExitCode) }

azure-pipelines/nightly.yml

@@ -79,7 +79,7 @@ jobs:
   displayName: 'Windows (amd64; Visual Studio)'
   pool: Hosted
   steps:
-  - template: powershell.yml
+  - template: bash.yml
     parameters:
       environmentVariables:
         CMAKE_GENERATOR: Visual Studio 12 2013 Win64
@@ -90,7 +90,7 @@ jobs:
   displayName: 'Windows (x86; Visual Studio)'
   pool: Hosted
   steps:
-  - template: powershell.yml
+  - template: bash.yml
     parameters:
       environmentVariables:
         CMAKE_GENERATOR: Visual Studio 12 2013
@@ -106,7 +106,7 @@ jobs:
     env:
       TEMP: $(Agent.TempDirectory)
       ARCH: amd64
-  - template: powershell.yml
+  - template: bash.yml
     parameters:
       environmentVariables:
         BUILD_PATH: $(Agent.TempDirectory)\mingw64\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files (x86)\CMake\bin
@@ -124,7 +124,7 @@ jobs:
     env:
       TEMP: $(Agent.TempDirectory)
       ARCH: x86
-  - template: powershell.yml
+  - template: bash.yml
     parameters:
       environmentVariables:
         BUILD_PATH: $(Agent.TempDirectory)\mingw32\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files (x86)\CMake\bin

azure-pipelines/powershell.yml

-# These are the steps used for building on machines with PowerShell.
-steps:
-- powershell: . '$(Build.SourcesDirectory)\azure-pipelines\build.ps1'
-  displayName: Build
-  workingDirectory: '$(Build.BinariesDirectory)'
-  env: ${{ parameters.environmentVariables }}
-- powershell: . '$(Build.SourcesDirectory)\azure-pipelines\test.ps1'
-  displayName: Test
-  workingDirectory: '$(Build.BinariesDirectory)'
-  env: ${{ parameters.environmentVariables }}
-- task: PublishTestResults@2
-  displayName: Publish Test Results
-  condition: succeededOrFailed()
-  inputs:
-    testResultsFiles: 'results_*.xml'
-    searchFolder: '$(Build.BinariesDirectory)'
-    mergeTestResults: true

azure-pipelines/test.ps1

-Set-StrictMode -Version Latest
-
-$ErrorActionPreference = "Stop"
-$PSDefaultParameterValues['*:ErrorAction'] = 'Stop'
-
-[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
-
-$SourceDir = Split-Path (Split-Path (Get-Variable MyInvocation).Value.MyCommand.Path)
-$BuildDir = Get-Location
-$global:Success = $true
-
-if ($Env:SKIP_TESTS) { exit }
-
-# Ask ctest what it would run if we were to invoke it directly.  This lets
-# us manage the test configuration in a single place (tests/CMakeLists.txt)
-# instead of running clar here as well.  But it allows us to wrap our test
-# harness with a leak checker like valgrind.  Append the option to write
-# JUnit-style XML files.
-function run_test {
-	$TestName = $args[0]
-
-	$TestCommand = (ctest -N -V -R "^$TestName$") -join "`n"
-
-	if (-Not ($TestCommand -match "(?ms).*\n^[0-9]*: Test command: ")) {
-		echo "Could not find tests: $TestName"
-		exit
-	}
-
-	$TestCommand = (ctest -N -V -R "^$TestName$") -join "`n" -replace "(?ms).*\n^[0-9]*: Test command: ","" -replace "\n.*",""
-	$TestCommand += " -r${BuildDir}\results_${TestName}.xml"
-
-	if ($Env:GITTEST_FLAKY_RETRY -gt 0) {
-		$AttemptsRemain = $Env:GITTEST_FLAKY_RETRY
-	} else {
-		$AttemptsRemain = 1
-	}
-
-	$Failed = 0
-	while ($AttemptsRemain -ne 0) {
-		if ($Failed -eq 1) {
-			Write-Host ""
-			Write-Host "Re-running flaky $TestName tests..."
-			Write-Host ""
-		}
-
-		Invoke-Expression $TestCommand
-		if ($LastExitCode -eq 0) {
-			$Failed = 0
-			break
-		} else {
-			$Failed = 1
-		}
-
-		$AttemptsRemain = $AttemptsRemain - 1
-	}
-
-	if ($Failed -eq 1) { $global:Success = $false }
-}
-
-Write-Host "##############################################################################"
-Write-Host "## Configuring test environment"
-Write-Host "##############################################################################"
-
-if (-not $Env:SKIP_PROXY_TESTS) {
-	Invoke-WebRequest -Method GET -Uri https://github.com/ethomson/poxyproxy/releases/download/v0.7.0/poxyproxy-0.7.0.jar -OutFile poxyproxy.jar
-
-	Write-Host ""
-	Write-Host "Starting HTTP proxy (Basic)..."
-	javaw -jar poxyproxy.jar --port 8080 --credentials foo:bar --auth-type basic --quiet
-
-	Write-Host ""
-	Write-Host "Starting HTTP proxy (NTLM)..."
-	javaw -jar poxyproxy.jar --port 8090 --credentials foo:bar --auth-type ntlm --quiet
-}
-
-if (-not $Env:SKIP_OFFLINE_TESTS) {
-	Write-Host ""
-	Write-Host "##############################################################################"
-	Write-Host "## Running (offline) tests"
-	Write-Host "##############################################################################"
-
-	run_test offline
-}
-
-if ($Env:RUN_INVASIVE_TESTS) {
-	Write-Host ""
-	Write-Host "##############################################################################"
-	Write-Host "## Running (invasive) tests"
-	Write-Host "##############################################################################"
-
-	$Env:GITTEST_INVASIVE_FS_SIZE=1
-	$Env:GITTEST_INVASIVE_MEMORY=1
-	$Env:GITTEST_INVASIVE_SPEED=1
-	run_test invasive
-	$Env:GITTEST_INVASIVE_FS_SIZE=$null
-	$Env:GITTEST_INVASIVE_MEMORY=$null
-	$Env:GITTEST_INVASIVE_SPEED=$null
-}
-
-if (-not $Env:SKIP_ONLINE_TESTS) {
-	Write-Host ""
-	Write-Host "##############################################################################"
-	Write-Host "## Running (online) tests"
-	Write-Host "##############################################################################"
-
-	$Env:GITTEST_FLAKY_RETRY=5
-	run_test online
-	$Env:GITTEST_FLAKY_RETRY=0
-}
-
-if (-not $Env:SKIP_PROXY_TESTS) {
-	# Test HTTP Basic authentication
-	Write-Host ""
-	Write-Host "Running proxy tests (Basic authentication)"
-	Write-Host ""
-
-	$Env:GITTEST_REMOTE_PROXY_HOST="localhost:8080"
-	$Env:GITTEST_REMOTE_PROXY_USER="foo"
-	$Env:GITTEST_REMOTE_PROXY_PASS="bar"
-	run_test proxy
-
-	# Test NTLM authentication
-	Write-Host ""
-	Write-Host "Running proxy tests (NTLM authentication)"
-	Write-Host ""
-
-	$Env:GITTEST_REMOTE_PROXY_HOST="localhost:8090"
-	$Env:GITTEST_REMOTE_PROXY_USER="foo"
-	$Env:GITTEST_REMOTE_PROXY_PASS="bar"
-	run_test proxy
-
-	$Env:GITTEST_REMOTE_PROXY_HOST=$null
-	$Env:GITTEST_REMOTE_PROXY_USER=$null
-	$Env:GITTEST_REMOTE_PROXY_PASS=$null
-
-	taskkill /F /IM javaw.exe
-}
-
-if (-Not $global:Success) { exit 1 }