/// <summary>
/// Add default capabilities if none are provided.
/// </summary>
public static void AddDefaultCapabilities(FeedRequirements requirements)
{
// Infer default schema from Sleet 2.2.x if none is provided.
if (requirements.RequiredCapabilities.Count < 1)
{
if (requirements.CreatorSleetVersion < new SemanticVersion(2, 2, 0))
{
requirements.RequiredCapabilities.Add(FeedCapability.Parse("schema:0.1.0"));
}
else
{
requirements.RequiredCapabilities.Add(FeedCapability.Parse("schema:1.0.0"));
}
}
}
/// <summary>
/// Read the assembly version.
/// </summary>
public static async Task <FeedRequirements> GetFeedRequirementsAsync(ISleetFileSystem fileSystem, ILogger log, CancellationToken token)
{
var requirements = new FeedRequirements();
// Read feed index.json data
var indexPath = fileSystem.Get("index.json");
var json = await indexPath.GetJson(log, token);
var sleetVersion = json.GetValue("sleet:version")?.ToString();
if (!string.IsNullOrEmpty(sleetVersion))
{
if (!SemanticVersion.TryParse(sleetVersion, out var version))
{
throw new InvalidOperationException("Invalid sleet:version in index.json");
}
requirements.CreatorSleetVersion = version;
}
var requiredVersion = json.GetValue("sleet:requiredVersion")?.ToString();
if (!string.IsNullOrEmpty(requiredVersion))
{
if (!VersionRange.TryParse(requiredVersion, out var range))
{
throw new InvalidOperationException("Invalid sleet:requiredVersion in index.json");
}
requirements.RequiredVersion = range;
}
var requiredCaps = json.GetValue("sleet:capabilities")?.ToString();
if (!string.IsNullOrEmpty(requiredCaps))
{
// Space delimited list of caps
foreach (var s in requiredCaps.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries))
{
requirements.RequiredCapabilities.Add(FeedCapability.Parse(s));
}
}
return(requirements);
}