internal Int32 CalculateBytes(
TemplateToken value,
Boolean traverse = false)
{
var enumerable = traverse ? value.Traverse() : new[] { value };
var result = 0;
foreach (var item in enumerable)
{
// This measurement doesn't have to be perfect
// https://codeblog.jonskeet.uk/2011/04/05/of-memory-and-strings/
switch (item.Type)
{
case TokenType.Null:
case TokenType.Boolean:
case TokenType.Number:
checked
{
result += MinObjectSize;
}
break;
case TokenType.String:
var stringToken = item as StringToken;
checked
{
result += MinObjectSize + StringBaseOverhead + ((stringToken.Value?.Length ?? 0) * sizeof(Char));
}
break;
case TokenType.Sequence:
case TokenType.Mapping:
case TokenType.InsertExpression:
// Min object size is good enough. Allows for base + a few fields.
checked
{
result += MinObjectSize;
}
break;
case TokenType.BasicExpression:
var basicExpression = item as BasicExpressionToken;
checked
{
result += MinObjectSize + StringBaseOverhead + ((basicExpression.Expression?.Length ?? 0) * sizeof(Char));
}
break;
default:
throw new NotSupportedException($"Unexpected template type '{item.Type}'");
}
}
return(result);
}
internal static Boolean ConvertToIfResult(
TemplateContext context,
TemplateToken ifResult)
{
var expression = ifResult.Traverse().FirstOrDefault(x => x is ExpressionToken);
if (expression != null)
{
throw new ArgumentException($"Unexpected type '{expression.GetType().Name}' encountered while reading 'if'.");
}
var evaluationResult = EvaluationResult.CreateIntermediateResult(null, ifResult);
return(evaluationResult.IsTruthy);
}
internal static List <KeyValuePair <String, JobContainer> > ConvertToJobServiceContainers(
TemplateContext context,
TemplateToken services,
bool allowExpressions = false)
{
var result = new List <KeyValuePair <String, JobContainer> >();
if (allowExpressions && services.Traverse().Any(x => x is ExpressionToken))
{
return(result);
}
var servicesMapping = services.AssertMapping("services");
foreach (var servicePair in servicesMapping)
{
var networkAlias = servicePair.Key.AssertString("services key").Value;
var container = ConvertToJobContainer(context, servicePair.Value);
result.Add(new KeyValuePair <String, JobContainer>(networkAlias, container));
}
return(result);
}
internal static JobContainer ConvertToJobContainer(
TemplateContext context,
TemplateToken value,
bool allowExpressions = false)
{
var result = new JobContainer();
if (allowExpressions && value.Traverse().Any(x => x is ExpressionToken))
{
return(result);
}
if (value is StringToken containerLiteral)
{
if (String.IsNullOrEmpty(containerLiteral.Value))
{
return(null);
}
result.Image = containerLiteral.Value;
}
else
{
var containerMapping = value.AssertMapping($"{PipelineTemplateConstants.Container}");
foreach (var containerPropertyPair in containerMapping)
{
var propertyName = containerPropertyPair.Key.AssertString($"{PipelineTemplateConstants.Container} key");
switch (propertyName.Value)
{
case PipelineTemplateConstants.Image:
result.Image = containerPropertyPair.Value.AssertString($"{PipelineTemplateConstants.Container} {propertyName}").Value;
break;
case PipelineTemplateConstants.Env:
var env = containerPropertyPair.Value.AssertMapping($"{PipelineTemplateConstants.Container} {propertyName}");
var envDict = new Dictionary <String, String>(env.Count);
foreach (var envPair in env)
{
var envKey = envPair.Key.ToString();
var envValue = envPair.Value.AssertString($"{PipelineTemplateConstants.Container} {propertyName} {envPair.Key.ToString()}").Value;
envDict.Add(envKey, envValue);
}
result.Environment = envDict;
break;
case PipelineTemplateConstants.Options:
result.Options = containerPropertyPair.Value.AssertString($"{PipelineTemplateConstants.Container} {propertyName}").Value;
break;
case PipelineTemplateConstants.Ports:
var ports = containerPropertyPair.Value.AssertSequence($"{PipelineTemplateConstants.Container} {propertyName}");
var portList = new List <String>(ports.Count);
foreach (var portItem in ports)
{
var portString = portItem.AssertString($"{PipelineTemplateConstants.Container} {propertyName} {portItem.ToString()}").Value;
portList.Add(portString);
}
result.Ports = portList;
break;
case PipelineTemplateConstants.Volumes:
var volumes = containerPropertyPair.Value.AssertSequence($"{PipelineTemplateConstants.Container} {propertyName}");
var volumeList = new List <String>(volumes.Count);
foreach (var volumeItem in volumes)
{
var volumeString = volumeItem.AssertString($"{PipelineTemplateConstants.Container} {propertyName} {volumeItem.ToString()}").Value;
volumeList.Add(volumeString);
}
result.Volumes = volumeList;
break;
case PipelineTemplateConstants.Credentials:
result.Credentials = ConvertToContainerCredentials(containerPropertyPair.Value);
break;
default:
propertyName.AssertUnexpectedValue($"{PipelineTemplateConstants.Container} key");
break;
}
}
}
if (result.Image.StartsWith("docker://", StringComparison.Ordinal))
{
result.Image = result.Image.Substring("docker://".Length);
}
if (String.IsNullOrEmpty(result.Image))
{
context.Error(value, "Container image cannot be empty");
}
return(result);
}
