/// <summary>
/// Checks whether the provided version is consumable by legacy 2.x clients,
/// which do not support a `.` in release labels, or release labels starting with numeric characters.
/// See also https://github.com/NuGet/NuGetGallery/issues/3226.
/// </summary>
/// <param name="version">The <see cref="NuGetVersion"/> to check for 2.x client compatibility.</param>
/// <returns>Returns a <see cref="ValidationResult"/> when non-compliant; otherwise <c>null</c>.</returns>
private static ValidationResult ValidateVersionForLegacyClients(NuGetVersion version)
{
if (!version.IsSemVer2 && !version.IsValidVersionForLegacyClients())
{
return(new ValidationResult(string.Format(
CultureInfo.CurrentCulture,
CoreStrings.Manifest_InvalidVersion,
version)));
}
return(null);
}
private static ValidationResult ValidateVersion(NuGetVersion version)
{
if (version.IsSemVer200())
{
return(new ValidationResult(string.Format(
CultureInfo.CurrentCulture,
Strings.Manifest_InvalidVersionSemVer200,
version.ToFullString())));
}
else if (!version.IsValidVersionForLegacyClients())
{
return(new ValidationResult(string.Format(
CultureInfo.CurrentCulture,
Strings.Manifest_InvalidVersion,
version)));
}
return(null);
}