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posh-vsts-cli.psm1
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posh-vsts-cli.psm1
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<#
.SYNOPSIS
Installs the VSTS CLI. Requires PowerShell to be launched as Administrator.
.EXAMPLE
Install-VstsCli
#>
Function Install-VstsCli
{
[CmdletBinding()]
param()
Import-Module BitsTransfer # in case the machine is locked down, one can use Invoke-WebRequest instead as well but BitsTransfer is much faster
Write-Verbose "Downloading installer" -Verbose
Start-BitsTransfer -Source https://aka.ms/vsts-cli-windows-installer -Destination vsts-cli_installer.msi
Write-Verbose "Installing VSTS-CLI" -Verbose
$result = Start-Process msiexec.exe -Wait -ArgumentList "/I $((Get-ChildItem .\vsts-cli_installer.msi).FullName) /quiet" -PassThru -Verb runas
Write-Verbose "Installer Exit Code: $($result.ExitCode)"
# refresh path in powershell https://gist.github.com/bill-long/230830312b70742321e0
foreach($level in "Machine","User") {
[Environment]::GetEnvironmentVariables($level).GetEnumerator() | ForEach-Object {
# For Path variables, append the new values, if they're not already in there
if($_.Name -match 'Path$') {
$_.Value = ($((Get-Content "Env:$($_.Name)") + ";$($_.Value)") -split ';' | Select-Object -unique) -join ';'
}
$_
} | Set-Content -Path { "Env:$($_.Name)" }
}
Remove-Item .\vsts-cli_installer.msi
vsts --version
}
<#
.SYNOPSIS
Invokes the VSTS CLI and converts the output to a PowerShell object.
.EXAMPLE
ivc build list
.EXAMPLE
ivc build list --output table
#>
Function Invoke-VstsCli
{
[Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingInvokeExpression", "")]
param()
$arguments = $args -join " "
& Invoke-Expression "vsts $($arguments)" | ConvertFrom-VstsCli
}
<#
.SYNOPSIS
Converts the JSON or table output of the vsts-cli output to PowerShell objects
.EXAMPLE
vsts build list | ConvertFrom-VstsCli
.EXAMPLE
vsts build list --output table | ConvertFrom-VstsCli
#>
function ConvertFrom-VstsCli
{
[CmdletBinding()]
param
(
[Parameter(Mandatory = $True, ValueFromPipeline = $True)]
[string]$InputObject
)
begin
{
$positions = $null;
$scippedSecondLine = $false;
}
process
{
if ($null -eq $isTableFormat)
{
$isTableFormat = $InputObject.startswith("[")
}
if (-not $isTableFormat)
{
foreach ($oneInputObject in $InputObject)
{
if ($null -eq $positions)
{
$positions = GetColumnInfo -HeaderRow $oneInputObject
}
else
{
if ($scippedSecondLine)
{
ParseRow -row $oneInputObject -ColumnInfo $positions
}
else
{
$scippedSecondLine = $true # the second line consists only of dashes
}
}
}
}
else
{
# the JSON string comes in one character at a time in the pipeline
if ($null -eq $stringBuilder)
{
$stringBuilder = [System.Text.StringBuilder]::new()
}
foreach($oneInputObject in $InputObject)
{
[void]$stringBuilder.AppendLine($oneInputObject)
}
}
}
end
{
if ($null -ne $stringBuilder)
{
$stringBuilder.ToString() | ConvertFrom-Json
}
$isTableFormat = $null
}
}
#region Table output parsing
function PascalName($name)
{
$name = $name.Trim(' ') # get rid of leading whitespace
$parts = $name.Split(" ")
for ($i = 0 ; $i -lt $parts.Length ; $i++)
{
$parts[$i] = [char]::ToUpper($parts[$i][0]) + $parts[$i].SubString(1).ToLower();
}
$parts -join ""
}
function GetHeaderBreak($headerRow, $startPoint = 0)
{
$i = $startPoint
while ( $i + 1 -lt $headerRow.Length)
{
if ($headerRow[$i] -eq ' ' -and $headerRow[$i + 1] -eq ' ')
{
return $i
break
}
$i += 1
}
return -1
}
function GetHeaderNonBreak($headerRow, $startPoint = 0)
{
$i = $startPoint
while ( $i + 1 -lt $headerRow.Length)
{
if ($headerRow[$i] -ne ' ')
{
return $i
break
}
$i += 1
}
return -1
}
function GetColumnInfo($headerRow)
{
$lastIndex = 2 # the first 2 characters are just whitespace
$i = 4 # id starts at 2
while ($i -lt $headerRow.Length)
{
$i = GetHeaderBreak $headerRow $lastIndex
if ($i -lt 0)
{
$name = $headerRow.Substring($lastIndex)
New-Object PSObject -Property @{ HeaderName = $name; Name = PascalName $name; Start = $lastIndex; End = -1}
break
}
else
{
$name = $headerRow.Substring($lastIndex, $i - $lastIndex)
$temp = $lastIndex
$lastIndex = GetHeaderNonBreak $headerRow $i
if ($temp -eq 2) # the first ID columns is right aligned -> move position to the very left
{
$temp = 0
}
if ($lastIndex -lt 0)
{
$lastIndex = $headerRow.Length - 1 # last columns sometimes 'overflows'
}
New-Object PSObject -Property @{ HeaderName = $name; Name = PascalName $name; Start = $temp; End = $lastIndex}
}
}
}
function ParseRow($row, $columnInfo)
{
$values = @{}
$columnInfo | ForEach-Object {
if ($_.End -lt 0)
{
$len = $row.Length - $_.Start
}
else
{
$len = $_.End - $_.Start
}
$values[$_.Name] = $row.SubString($_.Start, $len).Trim()
}
New-Object PSObject -Property $values
}
#endregion