Better retries

eng/helix/content/Download.ps1

@@ -0,0 +1,47 @@
+ <# 
+ .SYNOPSIS 
+     Downloads a given URI and saves it to outputFile
+ .DESCRIPTION
+     Downloads a given URI and saves it to outputFile
+ PARAMETER uri
+    The URI to fetch
+.PARAMETER outputFile
+    The outputh file path to save the URI
+#>
+param(
+    [Parameter(Mandatory = $true)]
+    $uri,
+
+    [Parameter(Mandatory = $true)]
+    $outputFile
+)
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$ProgressPreference = 'SilentlyContinue' # Don't display the console progress UI - it's a huge perf hit
+
+$maxRetries = 5
+$retries = 1
+
+while($true) {
+    try {
+      Write-Host "GET $uri"
+      Invoke-WebRequest $uri -OutFile $outputFile
+      break
+    }
+    catch {
+      Write-Host "Failed to download '$uri'"
+      $error = $_.Exception.Message
+    }
+
+    if (++$retries -le $maxRetries) {
+      Write-Warning $error -ErrorAction Continue
+      $delayInSeconds = [math]::Pow(2, $retries) - 1 # Exponential backoff
+      Write-Host "Retrying. Waiting for $delayInSeconds seconds before next attempt ($retries of $maxRetries)."
+      Start-Sleep -Seconds $delayInSeconds
+    }
+    else {
+      Write-Error $error -ErrorAction Continue
+      throw "Unable to download file in $maxRetries attempts."
+    }
+ }
+
+Write-Host "Download of '$uri' complete, saved to $outputFile..."

eng/helix/content/InstallDotNet.ps1

@@ -0,0 +1,35 @@
+ <# 
+ .SYNOPSIS 
+     Installs dotnet sdk and runtime using https://dot.net/v1/dotnet-install.ps1
+ .DESCRIPTION
+     Installs dotnet sdk and runtime using https://dot.net/v1/dotnet-install.ps1
+.PARAMETER arch
+    The architecture to install.
+.PARAMETER sdkVersion
+    The sdk version to install
+.PARAMETER runtimeVersion
+    The runtime version to install
+.PARAMETER installDir
+    The directory to install to
+#>
+param(
+    [Parameter(Mandatory = $true)]
+    $arch,
+
+    [Parameter(Mandatory = $true)]
+    $sdkVersion,
+
+    [Parameter(Mandatory = $true)]
+    $runtimeVersion,
+
+    [Parameter(Mandatory = $true)]
+    $installDir    
+)
+
+& $PSScriptRoot\Download.ps1 "https://dot.net/v1/dotnet-install.ps1" $PSScriptRoot\dotnet-install.ps1
+Write-Host "Download of dotnet-install.ps1 complete..."
+Write-Host "Installing SDK...& $PSScriptRoot\dotnet-install.ps1 -Architecture $arch -Version $sdkVersion -InstallDir $installDir"
+Invoke-Expression "& $PSScriptRoot\dotnet-install.ps1 -Architecture $arch -Version $sdkVersion -InstallDir $installDir"
+Write-Host "Installing Runtime...& $PSScriptRoot\dotnet-install.ps1 -Architecture $arch -Runtime dotnet -Version $runtimeVersion -InstallDir $installDir"
+Invoke-Expression "& $PSScriptRoot\dotnet-install.ps1 -Architecture $arch -Runtime dotnet -Version $runtimeVersion -InstallDir $installDir"
+Write-Host "InstallDotNet.ps1 complete..." 

eng/helix/content/InstallJdk.ps1

@@ -45,7 +45,7 @@ Remove-Item -Force -Recurse $tempDir -ErrorAction Ignore | out-null
 mkdir $tempDir -ea Ignore | out-null
 mkdir $installDir -ea Ignore | out-null
 Write-Host "Starting download of JDK ${JdkVersion}"
-Invoke-WebRequest -UseBasicParsing -Uri "https://netcorenativeassets.blob.core.windows.net/resource-packages/external/windows/java/jdk-${JdkVersion}_windows-x64_bin.zip" -OutFile "$tempDir/jdk.zip"
+& $PSScriptRoot\Download.ps1 "https://netcorenativeassets.blob.core.windows.net/resource-packages/external/windows/java/jdk-${JdkVersion}_windows-x64_bin.zip" $tempDir/jdk.zip
 Write-Host "Done downloading JDK ${JdkVersion}"
 
 Add-Type -assembly "System.IO.Compression.FileSystem"

eng/helix/content/InstallNode.ps1

@@ -38,7 +38,7 @@ if (Test-Path "$InstallDir\node.exe")
 $nodeFile="node-v$Version-win-x64"
 $url="http://nodejs.org/dist/v$Version/$nodeFile.zip"
 Write-Host "Starting download of NodeJs ${Version} from $url"
-Invoke-WebRequest -UseBasicParsing -Uri "$url" -OutFile "nodejs.zip"
+& $PSScriptRoot\Download.ps1 $url nodejs.zip
 Write-Host "Done downloading NodeJS ${Version}"
 
 $tempPath = [System.IO.Path]::GetTempPath()

eng/helix/content/mssql/InstallSqlServerLocalDB.ps1

@@ -31,8 +31,7 @@ $installerFilename = "SqlLocalDB.msi"
 $installerPath = "$intermedateDir\$installerFilename"
 Write-Host ""
 Write-Host "Downloading '$installerFilename' to '$installerPath'."
-Invoke-WebRequest -OutFile $installerPath -UseBasicParsing `
-    -Uri 'https://download.microsoft.com/download/9/0/7/907AD35F-9F9C-43A5-9789-52470555DB90/ENU/SqlLocalDB.msi'
+& $PSScriptRoot\Download.ps1 'https://download.microsoft.com/download/9/0/7/907AD35F-9F9C-43A5-9789-52470555DB90/ENU/SqlLocalDB.msi' $installerPath
 
 # Install LocalDB.
 $arguments = '/package', "`"$installerPath`"", '/NoRestart', '/Passive', `

eng/helix/content/runtests.cmd

@@ -24,10 +24,8 @@ set DOTNET_CLI_HOME=%HELIX_CORRELATION_PAYLOAD%\home
 
 set PATH=%DOTNET_ROOT%;!PATH!;%HELIX_CORRELATION_PAYLOAD%\node\bin
 echo Set path to: %PATH%
-echo "Installing SDK"
-powershell.exe -NoProfile -ExecutionPolicy unrestricted -Command "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; &([scriptblock]::Create((Invoke-WebRequest -useb 'https://dot.net/v1/dotnet-install.ps1'))) -Architecture %$arch% -Version %$sdkVersion% -InstallDir %DOTNET_ROOT%"
-echo "Installing Runtime"
-powershell.exe -NoProfile -ExecutionPolicy unrestricted -Command "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; &([scriptblock]::Create((Invoke-WebRequest -useb 'https://dot.net/v1/dotnet-install.ps1'))) -Architecture %$arch% -Runtime dotnet -Version %$runtimeVersion% -InstallDir %DOTNET_ROOT%"
+echo "Invoking InstallDotNet.ps1 %$arch% %$sdkVersion% %$runtimeVersion% %DOTNET_ROOT%"
+powershell.exe -NoProfile -ExecutionPolicy unrestricted -file InstallDotNet.ps1 %$arch% %$sdkVersion% %$runtimeVersion% %DOTNET_ROOT%
 
 set exit_code=0
 echo "Restore: dotnet restore RunTests\RunTests.csproj --source https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json --ignore-failed-sources..."

eng/scripts/Download.ps1

@@ -0,0 +1,47 @@
+ <# 
+ .SYNOPSIS 
+     Downloads a given uri and saves it to outputFile
+ .DESCRIPTION
+     Downloads a given uri and saves it to outputFile
+ PARAMETER uri
+    The uri to fetch
+.PARAMETER outputFile
+    The outputh file path to save the uri
+#>
+param(
+    [Parameter(Mandatory = $true)]
+    $uri,
+
+    [Parameter(Mandatory = $true)]
+    $outputFile
+)
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$ProgressPreference = 'SilentlyContinue' # Don't display the console progress UI - it's a huge perf hit
+
+$maxRetries = 5
+$retries = 1
+
+while($true) {
+    try {
+      Write-Host "GET $uri"
+      Invoke-WebRequest $uri -OutFile $outputFile
+      break
+    }
+    catch {
+      Write-Host "Failed to download '$uri'"
+      $error = $_.Exception.Message
+    }
+
+    if (++$retries -le $maxRetries) {
+      Write-Warning $error -ErrorAction Continue
+      $delayInSeconds = [math]::Pow(2, $retries) - 1 # Exponential backoff
+      Write-Host "Retrying. Waiting for $delayInSeconds seconds before next attempt ($retries of $maxRetries)."
+      Start-Sleep -Seconds $delayInSeconds
+    }
+    else {
+      Write-Error $error -ErrorAction Continue
+      throw "Unable to download file in $maxRetries attempts."
+    }
+ }
+
+Write-Host "Download of '$uri' complete, saved to $outputFile..."

eng/scripts/InstallGoogleChrome.ps1

@@ -1,4 +1,4 @@
 $InstallerPath = "$env:Temp\chrome_installer.exe";
-Invoke-WebRequest "http://dl.google.com/chrome/install/375.126/chrome_installer.exe" -OutFile $InstallerPath;
+& $PSScriptRoot\Download.ps1 "http://dl.google.com/chrome/install/375.126/chrome_installer.exe" $InstallerPath
 Start-Process -FilePath $InstallerPath -Args "/silent /install" -Verb RunAs -Wait;
 Remove-Item $InstallerPath

eng/scripts/InstallJdk.ps1

@@ -39,7 +39,7 @@ Remove-Item -Force -Recurse $tempDir -ErrorAction Ignore | out-null
 mkdir $tempDir -ea Ignore | out-null
 mkdir $installDir -ea Ignore | out-null
 Write-Host "Starting download of JDK ${JdkVersion}"
-Invoke-WebRequest -UseBasicParsing -Uri "https://netcorenativeassets.blob.core.windows.net/resource-packages/external/windows/java/jdk-${JdkVersion}_windows-x64_bin.zip" -Out "$tempDir/jdk.zip"
+& $PSScriptRoot\Download.ps1 "https://netcorenativeassets.blob.core.windows.net/resource-packages/external/windows/java/jdk-${JdkVersion}_windows-x64_bin.zip" "$tempDir/jdk.zip"
 Write-Host "Done downloading JDK ${JdkVersion}"
 Expand-Archive "$tempDir/jdk.zip" -d "$tempDir/jdk/"
 Write-Host "Expanded JDK to $tempDir"

eng/scripts/InstallProcDump.ps1

@@ -32,7 +32,7 @@ Remove-Item -Force -Recurse $tempDir -ErrorAction Ignore | out-null
 mkdir $tempDir -ea Ignore | out-null
 mkdir $installDir -ea Ignore | out-null
 Write-Host "Starting ProcDump download"
-Invoke-WebRequest -UseBasicParsing -Uri "https://download.sysinternals.com/files/Procdump.zip" -Out "$tempDir/ProcDump.zip"
+& $PSScriptRoot\Download.ps1 "https://download.sysinternals.com/files/Procdump.zip" "$tempDir/ProcDump.zip"
 Write-Host "Done downloading ProcDump"
 Expand-Archive "$tempDir/ProcDump.zip" -d "$tempDir/ProcDump/"
 Write-Host "Expanded ProcDump to $tempDir"