// Check if any of the pkg versions are already installed, if they are we'll remove them from the list of packages to install
private List <PSResourceInfo> FilterByInstalledPkgs(List <PSResourceInfo> packages)
{
// Package install paths.
// _pathsToInstallPkg will only contain the paths specified within the -Scope param (if applicable).
// _pathsToSearch will contain all resource package subdirectories within _pathsToInstallPkg path locations.
// e.g.:
// ./InstallPackagePath1/PackageA
// ./InstallPackagePath1/PackageB
// ./InstallPackagePath2/PackageC
// ./InstallPackagePath3/PackageD
// Get currently installed packages.
var getHelper = new GetHelper(_cmdletPassedIn);
var installedPackageNames = new HashSet <string>(StringComparer.CurrentCultureIgnoreCase);
foreach (var installedPkg in getHelper.GetInstalledPackages(
pkgs: packages,
pathsToSearch: _pathsToSearch))
{
installedPackageNames.Add(installedPkg.Name);
}
if (installedPackageNames.Count is 0)
{
return(packages);
}
// Return only packages that are not already installed.
var filteredPackages = new List <PSResourceInfo>();
foreach (var pkg in packages)
{
if (!installedPackageNames.Contains(pkg.Name))
{
// Add packages that still need to be installed.
filteredPackages.Add(pkg);
}
else
{
// Remove from tracking list of packages to install.
_cmdletPassedIn.WriteWarning(
string.Format("Resource '{0}' with version '{1}' is already installed. If you would like to reinstall, please run the cmdlet again with the -Reinstall parameter",
pkg.Name,
pkg.Version));
_pkgNamesToInstall.RemoveAll(x => x.Equals(pkg.Name, StringComparison.InvariantCultureIgnoreCase));
}
}
return(filteredPackages);
}
