static IEnumerable <string> GetPackageLookupPaths(string packageId, NuGetVersion version, Uri feedUri)
{
// Files created by the path resolver. This would take into account the non-side-by-side scenario
// and we do not need to match this for id and version.
var packageFileName = GetPackageFileName(packageId, version);
var filesMatchingFullName = GetPackageFiles(feedUri, packageFileName);
if (version != null && version.Version.Revision < 1)
{
// If the build or revision number is not set, we need to look for combinations of the format
// * Foo.1.2.nupkg
// * Foo.1.2.3.nupkg
// * Foo.1.2.0.nupkg
// * Foo.1.2.0.0.nupkg
// To achieve this, we would look for files named 1.2*.nupkg if both build and revision are 0 and
// 1.2.3*.nupkg if only the revision is set to 0.
string partialName = version.Version.Build < 1 ?
String.Join(".", packageId, version.Version.Major, version.Version.Minor) :
String.Join(".", packageId, version.Version.Major, version.Version.Minor, version.Version.Build);
partialName += "*" + CrossPlatform.GetPackageExtension();
// Partial names would result is gathering package with matching major and minor but different build and revision.
// Attempt to match the version in the path to the version we're interested in.
var partialNameMatches = GetPackageFiles(feedUri, partialName).Where(path => FileNameMatchesPattern(packageId, version, path));
return(Enumerable.Concat(filesMatchingFullName, partialNameMatches));
}
return(filesMatchingFullName);
}
static IEnumerable <string> GetPackageFiles(Uri feedUri, string filter = null)
{
var feedPath = feedUri.LocalPath;
filter = filter ?? "*" + CrossPlatform.GetPackageExtension();
// Check for package files one level deep. We use this at package install time
// to determine the set of installed packages. Installed packages are copied to
// {id}.{version}\{packagefile}.{extension}.
foreach (var dir in Directory.EnumerateDirectories(feedPath))
{
foreach (var path in GetFiles(dir, filter))
{
yield return(path);
}
}
// Check top level directory
foreach (var path in GetFiles(feedPath, filter))
{
yield return(path);
}
}
string GetFilePathToDownloadPackageTo(string cacheDirectory, string packageId, string version)
{
var name = packageId + "." + version + "_" + BitConverter.ToString(Guid.NewGuid().ToByteArray()).Replace("-", string.Empty) + CrossPlatform.GetPackageExtension();
return(Path.Combine(cacheDirectory, name));
}
static string GetPackageFileName(string packageId, NuGetVersion version)
{
return(packageId + "." + version + CrossPlatform.GetPackageExtension());
}
