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[fetchDependency] Call Start-BitsTransfer if available, otherwise fallback

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This commit is contained in:
Alexander Karatarakis 2017-10-17 13:45:41 -07:00
parent 451c1c96be
commit d6d5540cc5
1 changed files with 10 additions and 8 deletions
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18
scripts/fetchDependency.ps1
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@ -57,12 +57,16 @@ function SelectProgram([Parameter(Mandatory=$true)][string]$Dependency)
$WC.Proxy.Credentials=$ProxyCred
}
if (($PSVersionTable.PSEdition -ne "Core") -and ($Dependency -ne "git")) # git fails with BITS
# git and installerbase fail with Start-BitsTransfer
if ((Test-Command -commandName 'Start-BitsTransfer') -and ($Dependency -ne "git")-and ($Dependency -ne "installerbase"))
{
try {
try
{
Start-BitsTransfer -Source $url -Destination $downloadPath -ErrorAction Stop
return
}
catch [System.Exception] {
catch [System.Exception]
{
# If BITS fails for any reason, delete any potentially partially downloaded files and continue
if (Test-Path $downloadPath)
{
@ -70,11 +74,9 @@ function SelectProgram([Parameter(Mandatory=$true)][string]$Dependency)
}
}
}
if (!(Test-Path $downloadPath))
{
Write-Verbose("Downloading $Dependency...")
$WC.DownloadFile($url, $downloadPath)
}
Write-Verbose("Downloading $Dependency...")
$WC.DownloadFile($url, $downloadPath)
}
# Enums (without resorting to C#) are only available on powershell 5+.