private List <CloudFormationParameter> PromptModuleParameters(
ModuleManifest manifest,
CloudFormationStack existing = null,
Dictionary <string, string> parameters = null,
bool promptAll = false
)
{
var stackParameters = new Dictionary <string, CloudFormationParameter>();
// tentatively indicate to reuse previous parameter values
if (existing != null)
{
foreach (var parameter in manifest.ParameterSections
.SelectMany(section => section.Parameters)
.Where(moduleParameter => existing.Parameters.Any(existingParameter => existingParameter.ParameterKey == moduleParameter.Name))
)
{
stackParameters[parameter.Name] = new CloudFormationParameter {
ParameterKey = parameter.Name,
UsePreviousValue = true
};
}
}
// deployment bucket must always be set to match deployment tier in case it changed because LambdaSharp.Core was recreated
stackParameters["DeploymentBucketName"] = new CloudFormationParameter {
ParameterKey = "DeploymentBucketName",
ParameterValue = Settings.DeploymentBucketName
};
// add all provided parameters
if (parameters != null)
{
foreach (var parameter in parameters)
{
stackParameters[parameter.Key] = new CloudFormationParameter {
ParameterKey = parameter.Key,
ParameterValue = parameter.Value
};
}
}
// check if module requires any prompts
if (manifest.GetAllParameters().Any(RequiresPrompt))
{
Console.WriteLine();
Console.WriteLine($"Configuration for {manifest.GetFullName()} (v{manifest.GetVersion()})");
// only list parameter sections that contain a parameter that requires a prompt
foreach (var parameterGroup in manifest.ParameterSections.Where(group => group.Parameters.Any(RequiresPrompt)))
{
Console.WriteLine();
Settings.PromptLabel(parameterGroup.Title.ToUpper());
// only prompt for required parameters
foreach (var parameter in parameterGroup.Parameters.Where(RequiresPrompt))
{
// check if parameter is multiple choice
string enteredValue;
if (parameter.AllowedValues?.Any() ?? false)
{
var message = parameter.Name;
if (parameter.Label != null)
{
message += $": {parameter.Label}";
}
enteredValue = Settings.PromptChoice(message, parameter.AllowedValues);
}
else
{
var constraints = new StringBuilder();
if ((parameter.MinValue != null) || (parameter.MaxValue != null))
{
// append value constraints
constraints.Append(" (");
if ((parameter.MinValue != null) && (parameter.MaxValue != null))
{
constraints.Append($"Range: {parameter.MinValue.Value}..{parameter.MaxValue.Value}");
}
else if (parameter.MinValue != null)
{
constraints.Append($"Mininum: {parameter.MinValue.Value}");
}
else if (parameter.MaxValue != null)
{
constraints.Append($"Maximum: {parameter.MaxValue.Value}");
}
constraints.Append(")");
}
else if ((parameter.MinLength != null) || (parameter.MaxLength != null))
{
// append length constraints
constraints.Append(" (");
if ((parameter.MinLength != null) || (parameter.MaxLength != null))
{
constraints.Append($"Length: {parameter.MinValue.Value}..{parameter.MaxValue.Value}");
}
else if (parameter.MinLength != null)
{
constraints.Append($"Mininum Length: {parameter.MinLength.Value}");
}
else if (parameter.MaxLength != null)
{
constraints.Append($"Maximum Length: {parameter.MaxLength.Value}");
}
constraints.Append(")");
}
var message = $"{parameter.Name} [{parameter.Type}]{constraints}";
if (parameter.Label != null)
{
message += $": {parameter.Label}";
}
enteredValue = Settings.PromptString(message, parameter.Default, parameter.AllowedPattern, parameter.ConstraintDescription) ?? "";
}
stackParameters[parameter.Name] = new CloudFormationParameter {
ParameterKey = parameter.Name,
ParameterValue = enteredValue
};
}
}
}
// check if LambdaSharp.Core services should be enabled by default
if (
(Settings.CoreServices == CoreServices.Enabled) &&
manifest.GetAllParameters().Any(p => p.Name == "LambdaSharpCoreServices") &&
!stackParameters.Any(p => p.Value.ParameterKey == "LambdaSharpCoreServices")
)
{
stackParameters.Add("LambdaSharpCoreServices", new CloudFormationParameter {
ParameterKey = "LambdaSharpCoreServices",
ParameterValue = Settings.CoreServices.ToString()
});
}
return(stackParameters.Values.ToList());
// local functions
bool RequiresPrompt(ModuleManifestParameter parameter)
{
if (parameters?.ContainsKey(parameter.Name) == true)
{
// no prompt since parameter is provided explicitly
return(false);
}
if (existing?.Parameters.Any(p => p.ParameterKey == parameter.Name) == true)
{
// no prompt since we can reuse the previous parameter value
return(false);
}
if (!promptAll && (parameter.Default != null))
{
// no prompt since parameter has a default value
return(false);
}
if (Settings.PromptsAsErrors)
{
LogError($"{manifest.GetFullName()} requires value for parameter '{parameter.Name}'");
return(false);
}
return(true);
}
}
private List <CloudFormationParameter> PromptModuleParameters(
ModuleManifest manifest,
CloudFormationStack existing = null,
Dictionary <string, string> parameters = null,
bool promptAll = false,
bool promptsAsErrors = false
)
{
var stackParameters = new Dictionary <string, CloudFormationParameter>();
// tentatively indicate to reuse previous parameter values
if (existing != null)
{
foreach (var parameter in manifest.ParameterSections
.SelectMany(section => section.Parameters)
.Where(moduleParameter => existing.Parameters.Any(existingParameter => existingParameter.ParameterKey == moduleParameter.Name))
)
{
stackParameters[parameter.Name] = new CloudFormationParameter {
ParameterKey = parameter.Name,
UsePreviousValue = true
};
}
}
// add all provided parameters
if (parameters != null)
{
foreach (var parameter in parameters)
{
stackParameters[parameter.Key] = new CloudFormationParameter {
ParameterKey = parameter.Key,
ParameterValue = parameter.Value
};
}
}
// check if module requires any prompts
if (manifest.GetAllParameters().Any(RequiresPrompt))
{
Console.WriteLine();
Console.WriteLine($"Configuration for {manifest.GetFullName()} (v{manifest.GetVersion()})");
// only list parameter sections that contain a parameter that requires a prompt
foreach (var parameterGroup in manifest.ParameterSections.Where(group => group.Parameters.Any(RequiresPrompt)))
{
Console.WriteLine();
Console.WriteLine($"*** {parameterGroup.Title.ToUpper()} ***");
// only prompt for required parameters
foreach (var parameter in parameterGroup.Parameters.Where(RequiresPrompt))
{
var enteredValue = PromptString(parameter, parameter.Default) ?? "";
stackParameters[parameter.Name] = new CloudFormationParameter {
ParameterKey = parameter.Name,
ParameterValue = enteredValue
};
}
}
}
return(stackParameters.Values.ToList());
// local functions
bool RequiresPrompt(ModuleManifestParameter parameter)
{
if (parameters?.ContainsKey(parameter.Name) == true)
{
// no prompt since parameter is provided explicitly
return(false);
}
if (existing?.Parameters.Any(p => p.ParameterKey == parameter.Name) == true)
{
// no prompt since we can reuse the previous parameter value
return(false);
}
if (!promptAll && (parameter.Default != null))
{
// no prompt since parameter has a default value
return(false);
}
if (promptsAsErrors)
{
LogError($"{manifest.GetFullName()} requires value for parameter '{parameter.Name}'");
return(false);
}
return(true);
}
string PromptString(ModuleManifestParameter parameter, string defaultValue = null)
{
var prompt = $"|=> {parameter.Name} [{parameter.Type}]:";
if (parameter.Label != null)
{
prompt += $" {parameter.Label}:";
}
if (!string.IsNullOrEmpty(defaultValue))
{
prompt = $"{prompt} [{defaultValue}]";
}
Console.Write(prompt);
Console.Write(' ');
SetCursorVisible(true);
var resp = Console.ReadLine();
SetCursorVisible(false);
if (!string.IsNullOrEmpty(resp))
{
return(resp);
}
return(defaultValue);
// local functions
void SetCursorVisible(bool visible)
{
try {
Console.CursorVisible = visible;
} catch { }
}
}
}
