src/Resolve-CachedPackage.ps1
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function Resolve-CachedPackage { param( [Parameter(Mandatory)] $Bootstrapper, [Parameter(Mandatory)] [ValidateSet("Object","Install","File")] [string] $From, [Parameter(Mandatory)] $Options ) switch( $From ){ "Object" {} "Install" { $package_attempts = @{} $package_attempts.local_latest = Get-Package $Options.Name -ProviderName NuGet -ErrorAction SilentlyContinue $version_available = Try{ If( $Options.Version ){ $Options.Version } Elseif( $Options.Offline ) { $package_attempts.local_latest.Version } Else { $Bootstrapper.GetLatest( $Options.Name ) } } Catch { $package_attempts.local_latest.Version } $install_conditions = @( (-not $package_attempts.local_latest), # Package not Installed ($package_attempts.local_latest.Version -ne $version_available ) # Package either not up to date, or isn't required version ) if( $install_conditions ){ $version_wanted = $version_available # For the purpose of self-documenting code $package_attempts.local_corrected_ver = Try { # Check if the wanted version exists in the old version cache Get-Package $Options.Name -RequiredVersion $version_wanted -ProviderName NuGet -ErrorAction Stop } Catch { # If it doesn't install it: Write-Verbose "[Import-Package:Preparation] Installing $( $Options.Name ) $version_wanted" Try { Install-Package $Options.Name ` -ProviderName NuGet ` -RequiredVersion $version_wanted ` -SkipDependencies ` -Force ` -ErrorAction Stop | Out-Null } Catch { Install-Package $Options.Name ` -ProviderName NuGet ` -RequiredVersion $version_wanted ` -SkipDependencies ` -Scope CurrentUser ` -Force | Out-Null } # Error check it and return it: Get-Package $Options.Name -RequiredVersion $version_wanted -ProviderName NuGet -ErrorAction Stop } } If( $package_attempts.local_corrected_ver ){ $Options.Version = $package_attempts.local_corrected_ver.Version $Options.Source = $package_attempts.local_corrected_ver.Source } Else { $Options.Version = $package_attempts.local_latest.Version $Options.Source = $package_attempts.local_latest.Source } } "File" { $Options.Unmanaged = $true $Options.Offline = $true # This needs to be corrected by the .nuspec, if it is specified in the nuspec # Additionally, if the version is specifed in the .nuspec, it needs to be provided here $Options.Name = (Split-Path $Options.Source -Leaf) # Unpack the package to the TempPath temporary directory [System.IO.Compression.ZipFile]::ExtractToDirectory( $Options.Source.ToString(), $Options.TempPath.ToString() ) # Copy the nupkg to the temporary directory as well Copy-Item -Path $Options.Source.ToString() -Destination $Options.TempPath.ToString() -Force $Options.Source = Join-Path $Options.TempPath.ToString() (Split-Path $Options.Source -Leaf) } } } |