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@@ -0,0 +1,76 @@
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+<#
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+.SYNOPSIS
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+ Finds or installs the Tar command on this system.
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+.DESCRIPTION
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+ This script searches for Tar on this system. If not found, downloads and extracts Git to use its tar.exe. Prefers
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+ global installation locations even if Git has been downloaded into this repo.
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+.PARAMETER GitVersion
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+ The version of the Git to install. If not set, the default value is read from global.json.
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+.PARAMETER Force
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+ Overwrite the existing installation if one exists in this repo and Tar isn't installed globally.
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+#>
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+param(
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+ [string]$GitVersion,
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+ [switch]$Force
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+)
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+
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+$ErrorActionPreference = 'Stop'
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+$ProgressPreference = 'SilentlyContinue' # Workaround PowerShell/PowerShell#2138
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+
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+Set-StrictMode -Version 1
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+
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+# Find tar. If not found, install Git to get it.
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+$repoRoot = (Join-Path $PSScriptRoot "..\.." -Resolve)
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+$installDir = "$repoRoot\.tools\Git\win-x64"
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+$tarCommand = "$installDir\usr\bin\tar.exe"
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+$finalCommand = "$repoRoot\.tools\tar.exe"
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+
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+Write-Host "Windows version and other information, because who knows"
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+cmd.exe /c ver
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+systeminfo.exe
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+
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+Write-Host "Processor Architecture: $env:PROCESSOR_ARCHITECTURE"
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+Write-Host "Dumping environment"
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+Get-ChildItem env:\
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+
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+Write-Host "Checking $env:SystemRoot\System32\tar.exe"
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+Get-ChildItem "$env:SystemRoot\System32\ta*.exe"
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+if (Test-Path "$env:SystemRoot\System32\tar.exe") {
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+ Write-Host "Found $env:SystemRoot\System32\tar.exe"
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+ $tarCommand = "$env:SystemRoot\System32\tar.exe"
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+}
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+elseif (Test-Path "$env:ProgramFiles\Git\usr\bin\tar.exe") {
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+ $tarCommand = "$env:ProgramFiles\Git\usr\bin\tar.exe"
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+}
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+elseif (Test-Path "${env:ProgramFiles(x86)}\Git\usr\bin\tar.exe") {
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+ $tarCommand = "${env:ProgramFiles(x86)}\Git\usr\bin\tar.exe"
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+}
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+elseif (Test-Path "$env:AGENT_HOMEDIRECTORY\externals\git\usr\bin\tar.exe") {
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+ $tarCommand = "$env:AGENT_HOMEDIRECTORY\externals\git\usr\bin\tar.exe"
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+}
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+elseif ((Test-Path $tarCommand) -And (-Not $Force)) {
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+ Write-Verbose "Repo-local Git installation and $tarCommand already exist, skipping Git install."
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+}
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+else {
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+ if (-not $GitVersion) {
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+ $globalJson = Get-Content "$repoRoot\global.json" | ConvertFrom-Json
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+ $GitVersion = $globalJson.tools.Git
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+ }
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+
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+ $Uri = "https://netcorenativeassets.blob.core.windows.net/resource-packages/external/windows/git/Git-${GitVersion}-64-bit.zip"
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+
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+ Import-Module -Name (Join-Path $PSScriptRoot "..\common\native\CommonLibrary.psm1" -Resolve)
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+ $InstallStatus = CommonLibrary\DownloadAndExtract -Uri $Uri -InstallDirectory "$installDir\" -Force:$Force -Verbose
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+
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+ if ($InstallStatus -Eq $False) {
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+ Write-Error "Installation failed"
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+ exit 1
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+ }
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+}
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+
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+Copy-Item "$tarCommand" "$finalCommand" -Verbose
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+Write-Host "Tar now available at '$finalCommand'"
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+
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+if ($tarCommand -like '*\Git\*') {
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+ $null >.\.tools\tar.fromGit
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+}
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Doug Bunting