PowerShellGet/src/PowerShellGet.psm1 at master · PowerShell/PowerShellGet

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# PROXY HELPER

# used to determine if we have a semantic version

# try to convert the string into a version (semantic or system)

function Get-VersionType

{

param ( $versionString )

# if this can be converted into a version, simple return it

$version = $versionString -as [version]

if ( $version ) {

return $version

}

# if the string matches a semantic version, return it, but also return a lossy conversion to system.version

if ( $versionString -match $semVerRegex ) {

return [pscustomobject]@{

Major = [int]$Matches['major']

Minor = [int]$Matches['Minor']

Patch = [int]$Matches['patch']

PreReleaseLabel = [string]$matches['prerelease']

BuildLabel = [string]$matches['buildmetadata']

originalString = $versionString

Version = [version]("{0}.{1}.{2}" -f $Matches['major'],$Matches['minor'],$Matches['patch'])

}

return $null

}

# this handles comparison of version with semantic versions

# this is all needed as semantic version exists only in core

function Compare-Version

{

param ([string]$minimum, [string]$maximum)

# this is done so we can use version to do our comparison

$reference = Get-VersionType $minimum

if ( ! $reference ) {

throw "Cannot convert '$minimum' to version type"

}

$difference= Get-VersionType $maximum

if ( ! $difference ) {

throw "Cannot convert '$maximum' to version type"

}

if ( $reference -is [version] -and $difference -is [version] ) {

if ( $reference -gt $difference ) {

return 1

}

elseif ( $reference -lt $difference ) {

return -1

}

elseif ( $reference.version -is [version] -and $difference.version -is [version] ) {

# two semantic versions

if ( $reference.version -gt $difference.version ) {

return 1

}

elseif ( $reference.version -lt $difference.version ) {

return -1

}

elseif ( $reference -is [version] -and $difference.version -is [version] ) {

# one semantic version

if ( $reference -gt $difference.version ) {

return 1

}

elseif ( $reference -lt $difference.version ) {

return -1

}

elseif ( $reference -eq $difference.version ) {

# 1.0.0 is greater than 1.0.0-preview

return 1

}

elseif ( $reference.version -is [version] -and $difference -is [version] ) {

# one semantic version

if ( $reference.version -gt $difference ) {

return 1

}

elseif ( $reference.version -lt $difference ) {

return -1

}

elseif ( $reference.version -eq $difference ) {

# 1.0.0 is greater than 1.0.0-preview

return -1

}

# Fall through

if ( $reference.PreReleaseLabel -gt $difference.PreReleaseLabel ) {

return 1

}

if ( $reference.PreReleaseLabel -lt $difference.PreReleaseLabel ) {

return -1

}

# Fall through

if ( $reference.BuildLabel -gt $difference.BuildLabel ) {

return 1

}

if ( $reference.BuildLabel -lt $difference.BuildLabel ) {

return -1

}

# Fall through, they are equivalent

return 0

}

# Convert-VersionParamaters -RequiredVersion $RequiredVersion -MinimumVersion $MinimumVersion -MaximumVersion $MaximumVersion

# this tries to figure out whether we have an improper use of version parameters

# such as RequiredVersion with MinimumVersion or MaximumVersion

function Convert-VersionParamaters

{

param ( $RequiredVersion, $MinimumVersion, $MaximumVersion )

# validate that required is not used with minimum or maximum version

if ( $RequiredVersion -and ($MinimumVersion -or $MaximumVersion) ) {

throw "RequiredVersion may not be used with MinimumVersion or MaximumVersion"

}

elseif ( ! $RequiredVersion -and ! $MinimumVersion -and ! $MaximumVersion ) {

return $null

}

elseif ( $RequiredVersion -and ! $MinimumVersion -and ! $MaximumVersion ) {

return "$RequiredVersion" }

# now return the appropriate string

if ( $MinimumVersion -and ! $MaximumVersion ) {

return "[$MinimumVersion,)"

}

elseif ( ! $MinimumVersion -and $MaximumVersion ) {

# no minimum version

return "(,${MaximumVersion}]"

}

else {

$result = Compare-Version $MinimumVersion $MaximumVersion

if ( $result -ge 0 ) {

throw "'$MaximumVersion' must be greater than '$MinimumVersion'"

}

return "[${MinimumVersion},${MaximumVersion}]"

}

####

# Proxy functions

# This is where we map the parameters from v2 to v3

# In some cases we have the same parameters

# In some cases we have parameters which are not used in v3 - these we will silently ignore

# the goal in ignoring them is to provide ways for automation to succeed without error rather than provide exact

# semantic behavior between v2 and v3

# In some cases we have a way to map a v2 parameter into a v3 parameter

# In those cases, we need to remove the parameter from the bound parameters and apply the value to the newly mapped parameter

# In some cases we have a completely new parameter which we need to set.

####

function Find-Command {

[CmdletBinding(HelpUri='https://go.microsoft.com/fwlink/?LinkId=733636')]

param(

[Parameter(Position=0)]

[ValidateNotNullOrEmpty()]

[string[]]

${Name},

[ValidateNotNullOrEmpty()]

[string]

${ModuleName},

[ValidateNotNull()]

[string]

${MinimumVersion},

[ValidateNotNull()]

[string]

${MaximumVersion},

[ValidateNotNull()]

[string]

${RequiredVersion},

[switch]

${AllVersions},

[switch]

${AllowPrerelease},

[ValidateNotNull()]

[string[]]

${Tag},

[ValidateNotNull()]

[string]

${Filter},

[Parameter(ValueFromPipelineByPropertyName=$true)]

[ValidateNotNullOrEmpty()]

[uri]

${Proxy},

[Parameter(ValueFromPipelineByPropertyName=$true)]

[pscredential]

[System.Management.Automation.CredentialAttribute()]

${ProxyCredential},

[ValidateNotNullOrEmpty()]

[string[]]

${Repository})

begin

{

try {

$outBuffer = $null

if ($PSBoundParameters.TryGetValue('OutBuffer', [ref]$outBuffer))

{

$PSBoundParameters['OutBuffer'] = 1

}

# PARAMETER MAP

# Parameter translations

if ( $PSBoundParameters['Name'] ) { $null = $PSBoundParameters.Remove('Name'); $PSBoundParameters['CommandName'] = $Name }

if ( $PSBoundParameters['AllowPrerelease'] ) { $null = $PSBoundParameters.Remove('AllowPrerelease'); $PSBoundParameters['Prerelease'] = $AllowPrerelease }

# Parameter Deletions (unsupported in v3)

if ( $PSBoundParameters['ModuleName'] ) { $null = $PSBoundParameters.Remove('ModuleName') }

if ( $PSBoundParameters['MinimumVersion'] ) { $null = $PSBoundParameters.Remove('MinimumVersion') }

if ( $PSBoundParameters['MaximumVersion'] ) { $null = $PSBoundParameters.Remove('MaximumVersion') }

if ( $PSBoundParameters['RequiredVersion'] ) { $null = $PSBoundParameters.Remove('RequiredVersion') }

if ( $PSBoundParameters['AllVersions'] ) { $null = $PSBoundParameters.Remove('AllVersions') }

if ( $PSBoundParameters['Tag'] ) { $null = $PSBoundParameters.Remove('Tag') }

if ( $PSBoundParameters['Filter'] ) { $null = $PSBoundParameters.Remove('Filter') }

if ( $PSBoundParameters['Proxy'] ) { $null = $PSBoundParameters.Remove('Proxy') }

if ( $PSBoundParameters['ProxyCredential'] ) { $null = $PSBoundParameters.Remove('ProxyCredential') }

# END PARAMETER MAP

$wrappedCmd = $ExecutionContext.InvokeCommand.GetCommand('Find-PSResource', [System.Management.Automation.CommandTypes]::Cmdlet)

$scriptCmd = {& $wrappedCmd @PSBoundParameters }

# Set internal hook for being invoked from Compat module

try {

[Microsoft.PowerShell.PSResourceGet.UtilClasses.InternalHooks]::SetTestHook("InvokedFromCompat", $true)

} catch {

# Ignore if not available

}

$steppablePipeline = $scriptCmd.GetSteppablePipeline()

$steppablePipeline.Begin($PSCmdlet)

} catch {

throw

}

process

{

try {

$steppablePipeline.Process($_)

} catch {

throw

}

end

{

try {

# Reset internal hook for being invoked from Compat module

try {

[Microsoft.PowerShell.PSResourceGet.UtilClasses.InternalHooks]::SetTestHook("InvokedFromCompat", $false)

}

catch {

# Ignore if not available

}

$steppablePipeline.End()

} catch {

throw

}

.ForwardHelpTargetName Find-Command

.ForwardHelpCategory Function

}

function Find-DscResource {

[CmdletBinding(HelpUri='https://go.microsoft.com/fwlink/?LinkId=517196')]

param(

[Parameter(Position=0)]

[ValidateNotNullOrEmpty()]

[string[]]

${Name},

[ValidateNotNullOrEmpty()]

[string]

${ModuleName},

[ValidateNotNull()]

[string]

${MinimumVersion},

[ValidateNotNull()]

[string]

${MaximumVersion},

[ValidateNotNull()]

[string]

${RequiredVersion},

[switch]

${AllVersions},

[switch]

${AllowPrerelease},

[ValidateNotNull()]

[string[]]

${Tag},

[ValidateNotNull()]

[string]

${Filter},

[Parameter(ValueFromPipelineByPropertyName=$true)]

[ValidateNotNullOrEmpty()]

[uri]

${Proxy},

[Parameter(ValueFromPipelineByPropertyName=$true)]

[pscredential]

[System.Management.Automation.CredentialAttribute()]

${ProxyCredential},

[ValidateNotNullOrEmpty()]

[string[]]

${Repository})

begin

{

try {

$outBuffer = $null

if ($PSBoundParameters.TryGetValue('OutBuffer', [ref]$outBuffer))

{

$PSBoundParameters['OutBuffer'] = 1

}

# PARAMETER MAP

# Parameter translations

if ( $PSBoundParameters['Name'] ) { $null = $PSBoundParameters.Remove('Name'); $PSBoundParameters['DscResourceName'] = $Name }