#-------------------------------------------------------------------------------------------------------

# Copyright (C) Microsoft. All rights reserved.

# Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.

#-------------------------------------------------------------------------------------------------------

function UseValueOrDefault() {

foreach ($value in $args) {

if ($value) {

return $value

}

}

return ""

}

function GetGitPath() {

$gitExe = "git.exe"

if (!(Get-Command $gitExe -ErrorAction SilentlyContinue)) {

$gitExe = "C:\1image\Git\bin\git.exe"

if (!(Test-Path $gitExe)) {

throw "git.exe not found in path -- aborting."

}

}

return $gitExe

}

function GetRepoRoot() {

$gitExe = GetGitPath

return Invoke-Expression "$gitExe rev-parse --show-toplevel"

}

function WriteMessage($str) {

Write-Output $str

if ($logFile) {

Write-Output $str | Out-File $logFile -Append

}

}

function WriteErrorMessage($str) {

$host.ui.WriteErrorLine($str)

if ($logFile) {

Write-Output $str | Out-File $logFile -Append

}

}

function ExecuteCommand($cmd) {

if ($cmd -eq "") {

return

}

WriteMessage "-------------------------------------"

WriteMessage "Running $cmd"

if ($noaction) {

return

}

Invoke-Expression $cmd

if ($lastexitcode -ne 0) {

WriteErrorMessage "ERROR: Command failed: exit code $LastExitCode"

$global:exitcode = $LastExitCode

}

WriteMessage ""

}