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Add a helper function Check-Uri-Exist to check if a given Uri is valid #69

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Add a helper function Check-Uri-Exist to check if a given Uri is valid #69

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27 changes: 26 additions & 1 deletion common-helpers.psm1
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,31 @@ function Execute-Command {
}
}

<#
.SYNOPSIS
Check whether a given remote Uri exists
#>
function Check-Uri-Exist {
param(
[Parameter(Mandatory=$true)]
[Uri]$Uri
)

try {
$statusCode = (Invoke-WebRequest -Uri $Uri -UseBasicParsing -DisableKeepAlive -Method head).StatusCode
if ($statusCode -eq 200) {
return $true
} else {
Write-Host "File at $Uri did not appear to be valid, with status code '$statusCode'"
return $false;
}
} catch {
$statusCode = [int]$_.Exception.Response.StatusCode
Write-Host "File at $Uri did not appear to be valid, with status code '$statusCode'"
return $false
}
}

<#
.SYNOPSIS
Download file from url and return local path to file
Expand All @@ -47,7 +72,7 @@ function Download-File {
Write-Host "Error during downloading file from '$Uri'"
"$_"
exit 1
}
}
}

<#
Expand Down