private Package?GetSingleVersionAux(IPackageRange package)
{
// https://docs.microsoft.com/en-us/nuget/reference/package-versioning#version-ranges-and-wildcards
string range = package.VersionRange;
// Exact version match: "[x.y.z]"
if (!range.Contains(",") && range.StartsWith("[") && range.EndsWith("]"))
{
int length = range.Length - 2;
return(new Package(package.Id, range.Substring(1, length).Trim(), package.OriginProject));
}
// Minimum version, inclusive: "x.y.z"
if (!range.Contains(","))
{
return(new Package(package.Id, range.Trim(), package.OriginProject));
}
// Inclusive minimal version: "[x.y.z, ..."
if (range.StartsWith("["))
{
int length = range.IndexOf(",") - 1;
return(new Package(package.Id, range.Substring(1, length).Trim(), package.OriginProject));
}
// Inclusive maximal version: "..., x.y.z]"
if (range.StartsWith("]"))
{
int length = range.IndexOf(",") - 1;
return(new Package(package.Id, range.Substring(1, length).Trim(), package.OriginProject));
}
// Exclusive range: "(x.y.z, a.b.c)", "(x.y.z,)", "(, x.y.z)"
if (range.StartsWith("(") && range.EndsWith(")"))
{
// We cannot pick a specific version because we do not know which exist
var versions = this.versionProvider.GetVersions(package.Id);
var compare = GetExlusiveVersionComparer(range);
var version = versions.Select(SemanticVersion.Parse).FirstOrDefault(compare);
if (version == null)
{
Log.Error("Could not find valid version for range: " + package.VersionRange);
return(null);
}
return(new Package(package.Id, version.ToString(), package.OriginProject));
}
Log.Error("Unhandled version format: " + package.VersionRange);
return(null);
}
public InvalidDependencyChain(IPackageRange package, string message)
: base(new AnalyzedPackage(package.Id, package.VersionRange, package.OriginProject, AnalysisState.Error, message), EmptyList)
{
}
public Task <Package?> GetSingleVersion(IPackageRange package)
{
return(GetSingleVersion(package.Id, package.VersionRange, package.OriginProject));
}
public Task <Package?> GetSingleVersion(IPackageRange package)
{
Package?result = GetSingleVersionAux(package);
return(Task.FromResult(result));
}
