public static TOptions Parse <TOptions>(string configFile, string sectionName = "") where TOptions : class, new()
{
var yamlParser = new YamlParser();
var optionsSource = yamlParser.Parse(configFile, sectionName);
return(OptionsSourceParser.Parse <TOptions>(optionsSource));
}
public static TOptions Parse <TOptions>(string[] args, string environmentPrefix) where TOptions : class, IOptions, new()
{
var commandLineParser = new CommandLineParser();
var yamlParser = new YamlParser();
var environmentVariableProvider = new EnvironmentVariableProvider();
var defaultOptionsProvider = new DefaultOptionsProvider();
OptionSource[] defaultOptionSources = defaultOptionsProvider.Get <TOptions>();
OptionSource[] commandLineOptionSources;
OptionSource[] configurationFileOptionSources = null;
OptionSource[] environmentVariableOptionSources;
if (args == null || args.Length == 0)
{
var optionSources = environmentVariableProvider.Parse <TOptions>(environmentPrefix);
_effectiveOptions = OptionsSourceMerger.SequentialMerge(
defaultOptionSources,
optionSources);
return(OptionsSourceParser.Parse <TOptions>(optionSources));
}
try
{
commandLineOptionSources = commandLineParser.Parse <TOptions>(args);
}
catch (ArgException ex)
{
throw new OptionException(ex.Message, String.Empty);
}
if (commandLineOptionSources.Any(x => x.Name == "Config"))
{
var configOptionSource = commandLineOptionSources.First(x => x.Name == "Config");
if (!string.IsNullOrWhiteSpace(configOptionSource.Value.ToString()))
{
if (File.Exists(configOptionSource.Value.ToString()))
{
configurationFileOptionSources = yamlParser.Parse(configOptionSource.Value.ToString(), String.Empty);
}
else
{
Application.Exit(ExitCode.Error, string.Format("The specified configuration file {0} was not found.", configOptionSource.Value));
}
}
}
environmentVariableOptionSources = environmentVariableProvider.Parse <TOptions>(environmentPrefix);
_effectiveOptions = OptionsSourceMerger.SequentialMerge(
defaultOptionSources,
configurationFileOptionSources,
environmentVariableOptionSources,
commandLineOptionSources);
OptionsSourceRulesRunner.RunRules(defaultOptionSources.Select(option => option.Name).ToArray(),
_effectiveOptions);
return(OptionsSourceParser.Parse <TOptions>(_effectiveOptions));
}
