/// <summary>
/// Determines if the provided package details leaf represents a listed package.
/// </summary>
/// <param name="leaf">The catalog leaf.</param>
/// <returns>True if the package is listed.</returns>
public static bool IsListed(this PackageDetailsCatalogLeaf leaf)
{
if (leaf.Listed.HasValue)
{
return(leaf.Listed.Value);
}
// A published year of 1900 indicates that this package is unlisted, when the listed property itself is
// not present (legacy behavior).
// Example: https://api.nuget.org/v3/catalog0/data/2015.02.01.06.22.45/antixss.4.0.1.json
return(leaf.Published.Year != 1900);
}
/// <summary>
/// Determines if the provied package details leaf represents a SemVer 2.0.0 package. A package is considered
/// SemVer 2.0.0 if it's version is SemVer 2.0.0 or one of its dependency version ranges is SemVer 2.0.0.
/// </summary>
/// <param name="leaf">The catalog leaf.</param>
/// <returns>True if the package is SemVer 2.0.0.</returns>
public static bool IsSemVer2(this PackageDetailsCatalogLeaf leaf)
{
var parsedPackageVersion = leaf.ParsePackageVersion();
if (parsedPackageVersion.IsSemVer2)
{
return(true);
}
if (leaf.VerbatimVersion != null)
{
var parsedVerbatimVersion = NuGetVersion.Parse(leaf.VerbatimVersion);
if (parsedVerbatimVersion.IsSemVer2)
{
return(true);
}
}
if (leaf.DependencyGroups != null)
{
foreach (var dependencyGroup in leaf.DependencyGroups)
{
// Example: https://api.nuget.org/v3/catalog0/data/2018.10.28.07.42.42/mvcsitemapprovider.3.3.0-pre1.json
if (dependencyGroup.Dependencies == null)
{
continue;
}
foreach (var dependency in dependencyGroup.Dependencies)
{
var versionRange = dependency.ParseRange();
if ((versionRange.MaxVersion != null && versionRange.MaxVersion.IsSemVer2) ||
(versionRange.MinVersion != null && versionRange.MinVersion.IsSemVer2))
{
return(true);
}
}
}
}
return(false);
}