private static int CreateServiceHandler(bool user, ParseResult result)
{
bool systemUnit = !user;
var commandOptions = new ArgumentsDictionary(result.CommandResult.Children);
if (!Prerequisite.RequiredOption(commandOptions, "name", out string unitName) ||
(systemUnit && !Prerequisite.RunningAsRoot()))
{
return(1);
}
var substitutions = new Dictionary <string, string>();
substitutions.Add("%unitname%", unitName);
string unitFileContent = UnitFileHelper.BuildUnitFile(ConfigurationOptions, commandOptions, substitutions);
if (!UnitFileHelper.TryCreateNewUnitFile(systemUnit, $"{unitName}.socket", unitFileContent, out string unitFilePath))
{
return(1);
}
string userOption = user ? " --user" : string.Empty;
string sudoPrefix = user ? string.Empty : "sudo ";
Console.WriteLine($"Created socket file at: {unitFilePath}");
Console.WriteLine();
Console.WriteLine("The following commands may be handy:");
Console.WriteLine($"{sudoPrefix}systemctl{userOption} daemon-reload # Notify systemd a new service file exists");
return(0);
}
public static bool RequiredOption(ArgumentsDictionary commandOptions, string name, out string value)
{
if (!commandOptions.TryGetValue(name.ToLowerInvariant(), out value))
{
Console.WriteLine($"Missing required option: --{name}");
return(false);
}
return(true);
}
private static int CreateServiceHandler(bool user, ParseResult result)
{
bool systemUnit = !user;
var commandOptions = new ArgumentsDictionary(result.CommandResult.Children);
if (!Prerequisite.RequiredOption(commandOptions, "name", out string unitName) ||
!Prerequisite.RequiredOption(commandOptions, "execstart", out string execStartUser) ||
(systemUnit && !Prerequisite.RunningAsRoot()) ||
!Prerequisite.ResolveApplication(execStartUser, systemUnit, out string execStart, out string execStartDir))
{
return(1);
}
var substitutions = new Dictionary <string, string>();
substitutions.Add("%unitname%", unitName);
substitutions.Add("%execstartdir%", execStartDir);
// Replace user execstart with resolved application execstart
commandOptions.SetValue("execstart", execStart);
string unitFileContent = UnitFileHelper.BuildUnitFile(ConfigurationOptions, commandOptions, substitutions);
if (!UnitFileHelper.TryCreateNewUnitFile(systemUnit, $"{unitName}.service", unitFileContent, out string unitFilePath))
{
return(1);
}
string userOption = user ? " --user" : string.Empty;
string sudoPrefix = user ? string.Empty : "sudo ";
Console.WriteLine($"Created service file at: {unitFilePath}");
Console.WriteLine();
Console.WriteLine("The following commands may be handy:");
Console.WriteLine($"{sudoPrefix}systemctl{userOption} daemon-reload # Notify systemd a new service file exists");
Console.WriteLine($"{sudoPrefix}systemctl{userOption} start {unitName} # Start the service");
Console.WriteLine($"{sudoPrefix}systemctl{userOption} status {unitName} # Check the service status");
Console.WriteLine($"{sudoPrefix}systemctl{userOption} enable {unitName} # Automatically start the service");
return(0);
}
public static string BuildUnitFile(ConfigurationOption[] options, ArgumentsDictionary optionValues, Dictionary <string, string> substitutions)
{
var sb = new StringBuilder();
string currentSection = null;
foreach (var option in options)
{
IReadOnlyCollection <string> value;
if (!optionValues.TryGetValue(option.Name.ToLowerInvariant(), out value))
{
string defaultValue = option.Default;
if (defaultValue != null)
{
value = new[] { defaultValue };
}
}
if (value != null && value.Count > 0 && !string.IsNullOrEmpty(value.First()))
{
// Start a new section
if (currentSection != option.Section)
{
if (currentSection != null)
{
sb.AppendLine();
}
sb.AppendLine($"[{option.Section}]");
currentSection = option.Section;
}
foreach (var val in value)
{
string substitutedValue = val;
foreach (var subsitution in substitutions)
{
substitutedValue = substitutedValue.Replace(subsitution.Key, subsitution.Value);
}
sb.AppendLine($"{option.Name}={substitutedValue}");
}
}
}
return(sb.ToString());
}