feat: Begins vault commands, adds nodes for rendering discussion documentation.

Sources/CliClient/CliClient.swift

@@ -17,6 +17,7 @@ public struct CliClient: Sendable {
   public var loadConfiguration: @Sendable () throws -> Configuration
   public var runCommand: @Sendable ([String], Bool, ShellCommand.Shell) async throws -> Void
   public var createConfiguration: @Sendable (_ path: String, _ json: Bool) throws -> Void
+  public var findVaultFileInCurrentDirectory: @Sendable () throws -> String
 
   public func runCommand(
     quiet: Bool,
@@ -95,6 +96,11 @@ extension CliClient: DependencyKey {
       }
 
       try fileClient.write(path, data)
+    } findVaultFileInCurrentDirectory: {
+      guard let url = try fileClient.findVaultFileInCurrentDirectory() else {
+        throw CliClientError.vaultFileNotFound
+      }
+      return path(for: url)
     }
   }
 
@@ -107,6 +113,7 @@ extension CliClient: DependencyKey {
 
 enum CliClientError: Error {
   case fileExistsAtPath(String)
+  case vaultFileNotFound
 }
 
 private let jsonEncoder: JSONEncoder = {

Sources/CliClient/Configuration.swift

@@ -3,7 +3,7 @@ import Foundation
 import ShellClient
 
 /// Represents the configuration.
-public struct Configuration: Codable {
+public struct Configuration: Codable, Sendable {
 
   public let playbookDir: String?
   public let inventoryPath: String?
@@ -11,6 +11,7 @@ public struct Configuration: Codable {
   public let templateRepoVersion: String?
   public let templateDir: String?
   public let defaultPlaybookArgs: [String]?
+  public let defaultVaultArgs: [String]?
 
   fileprivate enum CodingKeys: String, CodingKey {
     case playbookDir = "HPA_PLAYBOOK_DIR"
@@ -19,6 +20,7 @@ public struct Configuration: Codable {
     case templateRepoVersion = "HPA_TEMPLATE_VERSION"
     case templateDir = "HPA_TEMPLATE_DIR"
     case defaultPlaybookArgs = "HPA_DEFAULT_PLAYBOOK_ARGS"
+    case defaultVaultArgs = "HPA_DEFAULT_VAULT_ARGS"
   }
 
   public static func fromEnv(
@@ -31,16 +33,14 @@ public struct Configuration: Codable {
     let hpaValues: [String: String] = env.filter { $0.key.contains("HPA") }
     logger.debug("HPA env vars: \(hpaValues)")
 
-    let defaultArgs: [String]? = hpaValues.value(key: .defaultPlaybookArgs)
-      .flatMap { $0.split(separator: ",").map(String.init) }
-
     return Configuration(
-      playbookDir: hpaValues.value(key: .playbookDir),
+      playbookDir: hpaValues.value(for: .playbookDir),
-      inventoryPath: hpaValues.value(key: .inventoryPath),
+      inventoryPath: hpaValues.value(for: .inventoryPath),
-      templateRepo: hpaValues.value(key: .templateRepo),
+      templateRepo: hpaValues.value(for: .templateRepo),
-      templateRepoVersion: hpaValues.value(key: .templateRepoVersion),
+      templateRepoVersion: hpaValues.value(for: .templateRepoVersion),
-      templateDir: hpaValues.value(key: .templateDir),
+      templateDir: hpaValues.value(for: .templateDir),
-      defaultPlaybookArgs: defaultArgs
+      defaultPlaybookArgs: hpaValues.array(for: .defaultPlaybookArgs),
+      defaultVaultArgs: hpaValues.array(for: .defaultVaultArgs)
     )
   }
 
@@ -51,7 +51,8 @@ public struct Configuration: Codable {
       templateRepo: "https://git.example.com/consult-template.git",
       templateRepoVersion: "main",
       templateDir: "/path/to/local/template",
-      defaultPlaybookArgs: ["--vault-id=myId@$SCRIPTS/vault-gopass-client"]
+      defaultPlaybookArgs: ["--tags", "debug"],
+      defaultVaultArgs: ["--vault-id=myId@$SCRIPTS/vault-gopass-client"]
     )
   }
 
@@ -82,7 +83,11 @@ public struct Configuration: Codable {
 }
 
 extension [String: String] {
-  fileprivate func value(key codingKey: Configuration.CodingKeys) -> String? {
+  fileprivate func value(for codingKey: Configuration.CodingKeys) -> String? {
     self[codingKey.rawValue]
   }
+
+  fileprivate func array(for codingKey: Configuration.CodingKeys) -> [String]? {
+    value(for: codingKey).flatMap { $0.split(separator: ",").map(String.init) }
+  }
 }

Sources/CliClient/FileClient.swift

@@ -18,6 +18,7 @@ public struct FileClient: Sendable {
   public var isDirectory: @Sendable (URL) -> Bool = { _ in false }
   public var isReadable: @Sendable (URL) -> Bool = { _ in false }
   public var fileExists: @Sendable (String) -> Bool = { _ in false }
+  public var findVaultFileInCurrentDirectory: @Sendable () throws -> URL?
   public var write: @Sendable (String, Data) throws -> Void
 }
 
@@ -33,6 +34,7 @@ extension FileClient: DependencyKey {
       isDirectory: { client.isDirectory(url: $0) },
       isReadable: { client.isReadable(url: $0) },
       fileExists: { client.fileExists(at: $0) },
+      findVaultFileInCurrentDirectory: { try client.findVaultFileInCurrentDirectory() },
       write: { path, data in
         try data.write(to: URL(filePath: path))
       }
@@ -66,6 +68,31 @@ private struct LiveFileClient: @unchecked Sendable {
     fileManager.fileExists(atPath: path)
   }
 
+  func findVaultFileInCurrentDirectory() throws -> URL? {
+    let urls = try fileManager.contentsOfDirectory(at: URL(filePath: "."), includingPropertiesForKeys: nil)
+
+    if let vault = urls.firstVaultFile {
+      return vault
+    }
+
+    // check for folders that end with "vars" and search those next.
+    for folder in urls.filter({ $0.absoluteString.hasSuffix("vars/") }) {
+      let files = try fileManager.contentsOfDirectory(at: folder, includingPropertiesForKeys: nil)
+      if let vault = files.firstVaultFile {
+        return vault
+      }
+    }
+
+    // Fallback to check all sub-folders
+    for folder in urls.filter({ self.isDirectory(url: $0) && !$0.absoluteString.hasSuffix("vars/") }) {
+      let files = try fileManager.contentsOfDirectory(at: folder, includingPropertiesForKeys: nil)
+      if let vault = files.firstVaultFile {
+        return vault
+      }
+    }
+    return nil
+  }
+
   func loadFile(at url: URL, into env: inout [String: String], decoder: JSONDecoder) throws {
     @Dependency(\.logger) var logger
     logger.trace("Begin load file for: \(path(for: url))")
@@ -101,3 +128,9 @@ private struct LiveFileClient: @unchecked Sendable {
     }
   }
 }
+
+private extension Array where Element == URL {
+  var firstVaultFile: URL? {
+    first { $0.absoluteString.hasSuffix("vault.yml") }
+  }
+}

Sources/hpa/Application.swift

@@ -7,10 +7,10 @@ import ShellClient
 struct Application: AsyncParsableCommand {
 
   static let configuration = CommandConfiguration(
-    commandName: "hpa",
+    commandName: Constants.appName,
-    abstract: "\("A utility for working with ansible hpa playbook.".blue)",
+    abstract: createAbstract("A utility for working with ansible hpa playbook."),
     subcommands: [
-      BuildCommand.self, CreateCommand.self, UtilsCommand.self
+      BuildCommand.self, CreateCommand.self, VaultCommand.self, UtilsCommand.self
     ]
   )
 

Sources/hpa/BuildCommand.swift

@@ -6,7 +6,7 @@ struct BuildCommand: AsyncParsableCommand {
 
   static let commandName = "build"
 
-  static let configuration = CommandConfiguration.playbookCommandConfiguration(
+  static let configuration = CommandConfiguration.playbook(
     commandName: commandName,
     abstract: "Build a home performance assesment project.",
     examples: (label: "Build Project", example: "\(commandName) /path/to/project")

Sources/hpa/CreateCommand.swift

@@ -8,7 +8,7 @@ struct CreateCommand: AsyncParsableCommand {
 
   static let commandName = "create"
 
-  static let configuration = CommandConfiguration.playbookCommandConfiguration(
+  static let configuration = CommandConfiguration.playbook(
     commandName: commandName,
     abstract: "Create a home performance assesment project.",
     examples: (

Sources/hpa/Helpers/CommandConfigurationExtensions.swift

@@ -1,35 +0,0 @@
-import ArgumentParser
-
-extension CommandConfiguration {
-  static func playbookCommandConfiguration(
-    commandName: String,
-    abstract: String,
-    examples: (label: String, example: String)...
-  ) -> Self {
-    guard examples.count > 0 else {
-      fatalError("Did not supply any examples.")
-    }
-    return Self(
-      commandName: commandName,
-      abstract: "\(abstract.blue)",
-      discussion: """
-      \("NOTE:".yellow) Most options are not required if you have a configuration file setup.
-
-      \("Examples:".yellow)
-
-        \(examples.map { "\($0.label.green.italic)\n  $ hpa \($0.example)" }.joined(separator: "\n"))
-
-        \("Passing extra args to the playbook.".green.italic)
-        $ hpa \(examples[0].example) -- --vault-id "myId@$SCRIPTS/vault-gopass-client"
-
-      \("See Also:".yellow) \("Ansible playbook options.".italic)
-
-        $ ansible-playbook --help
-
-      \("IMPORTANT NOTE:".red) Any extra arguments to pass to the playbook invocation have to
-                      be at the end with `--` before any arguments otherwise there will
-                      be an "Unkown option" error. See examples above.
-      """
-    )
-  }
-}

Sources/hpa/Internal/CommandConfigurationExtensions.swift

@@ -0,0 +1,108 @@
+import ArgumentParser
+import Rainbow
+
+extension CommandConfiguration {
+
+  static func create(
+    commandName: String,
+    abstract: String,
+    usesExtraArgs: Bool = true,
+    discussion nodes: [Node]
+  ) -> Self {
+    .init(
+      commandName: commandName,
+      abstract: createAbstract(abstract),
+      discussion: Discussion(nodes: nodes, usesExtraArgs: usesExtraArgs).render()
+    )
+  }
+
+  static func playbook(
+    commandName: String,
+    abstract: String,
+    parentCommand: String? = nil,
+    examples: (label: String, example: String)...
+  ) -> Self {
+    .create(
+      commandName: commandName,
+      abstract: abstract,
+      discussion: [.note(label: "Most options are not required if you have a configuration file setup.")]
+        + examples.nodes(parentCommand)
+        + [.seeAlso(label: "Ansible playbook options.", command: "ansible-playbook")]
+    )
+  }
+}
+
+func createAbstract(_ string: String) -> String {
+  "\(string.blue)"
+}
+
+struct Discussion {
+  var nodes: [Node]
+
+  init(usesExtraArgs: Bool = true, _ nodes: Node...) {
+    self.init(nodes: nodes, usesExtraArgs: usesExtraArgs)
+  }
+
+  init(nodes: [Node], usesExtraArgs: Bool = true) {
+    var nodes = nodes
+
+    if let firstExampleIndex = nodes.firstIndex(where: \.isExampleNode) {
+      nodes.insert(.exampleHeading, at: firstExampleIndex)
+    }
+
+    if usesExtraArgs {
+      if let lastExampleIndex = nodes.lastIndex(where: \.isExampleNode) {
+        let last = nodes[lastExampleIndex]
+        if case let .example(_, example, parent) = last {
+          nodes.insert(
+            .example(label: "Passing extra args.", example: example, parentCommand: parent),
+            at: nodes.index(after: lastExampleIndex)
+          )
+        }
+      }
+    }
+    self.nodes = nodes
+  }
+
+  func render() -> String {
+    nodes.map { $0.render() }.joined(separator: "\n")
+  }
+}
+
+enum Node: Equatable {
+  case note(header: String = "NOTE:", label: String, appendNewLine: Bool = true)
+  case example(label: String, example: String, parentCommand: String?)
+  case seeAlso(label: String, command: String, appendHelpToCommand: Bool = true)
+
+  static var exampleHeading: Self { .note(header: "Examples:", label: "Some common examples.", appendNewLine: false) }
+
+  var isExampleNode: Bool {
+    if case .example = self { return true }
+    return false
+  }
+
+  func render() -> String {
+    switch self {
+    case let .note(header, note, appendNewLine):
+      return "\(header.yellow) \(note.italic)\(appendNewLine ? "\n" : "")"
+    case let .example(label: label, example: example, parentCommand: parent):
+      return """
+        \(label.green.italic)
+        $ \(Constants.appName) \(parent ?? "")\(parent != nil ? " \(example)" : example)
+
+      """
+    case let .seeAlso(label: label, command: command, appendHelpToCommand: appendHelp):
+      return """
+      \("See Also:".yellow) \(label.italic)
+        $ \(command)\(appendHelp ? " --help" : "")
+
+      """
+    }
+  }
+}
+
+private extension Array where Element == (label: String, example: String) {
+  func nodes(_ parentCommand: String?) -> [Node] {
+    map { .example(label: $0.label, example: $0.example, parentCommand: parentCommand) }
+  }
+}

Sources/hpa/Internal/Constants.swift

@@ -0,0 +1,17 @@
+import Rainbow
+
+// Constant string values.
+enum Constants {
+  static let appName = "hpa"
+  static let playbookFileName = "main.yml"
+  static let inventoryFileName = "inventory.ini"
+  static let importantExtraArgsNote = """
+
+  \("IMPORTANT NOTE".bold.underline): \("""
+    Any extra arguments to pass to the underlying command invocation have to
+    be at the end with `--` before any arguments otherwise there will
+    be an "Unkown option" error. See examples above.
+    """.italic
+  )
+  """.red
+}

Sources/hpa/Internal/GlobalOptions.swift

@@ -50,4 +50,8 @@ struct GlobalOptions: ParsableArguments {
     set { basic[keyPath: keyPath] = newValue }
   }
 
+  subscript<T>(dynamicMember keyPath: KeyPath<BasicGlobalOptions, T>) -> T {
+    basic[keyPath: keyPath]
+  }
+
 }

Sources/hpa/Internal/LoggingExtensions.swift

@@ -0,0 +1,53 @@
+import Dependencies
+import Logging
+
+extension Logger.Level {
+
+  /// Set the log level based on the user's options supplied.
+  init(globals: BasicGlobalOptions, quietOnlyPlaybook: Bool) {
+    if quietOnlyPlaybook || !globals.quiet {
+      switch globals.verbose {
+      case 0:
+        self = .info
+      case 1:
+        self = .debug
+      case 2...:
+        self = .trace
+      default:
+        self = .info
+      }
+    }
+    self = .info
+  }
+}
+
+func withSetupLogger(
+  commandName: String,
+  globals: BasicGlobalOptions,
+  quietOnlyPlaybook: Bool = false,
+  dependencies setupDependencies: (inout DependencyValues) -> Void = { _ in },
+  operation: @escaping () async throws -> Void
+) async rethrows {
+  try await withDependencies {
+    $0.logger = .init(label: "\("hpa".yellow)")
+    $0.logger.logLevel = .init(globals: globals, quietOnlyPlaybook: quietOnlyPlaybook)
+    $0.logger[metadataKey: "command"] = "\(commandName.blue)"
+  } operation: {
+    try await operation()
+  }
+}
+
+func withSetupLogger(
+  commandName: String,
+  globals: GlobalOptions,
+  dependencies setupDependencies: (inout DependencyValues) -> Void = { _ in },
+  operation: @escaping () async throws -> Void
+) async rethrows {
+  try await withSetupLogger(
+    commandName: commandName,
+    globals: globals.basic,
+    quietOnlyPlaybook: globals.quietOnlyPlaybook,
+    dependencies: setupDependencies,
+    operation: operation
+  )
+}

Sources/hpa/Internal/RunPlaybook.swift

@@ -6,101 +6,6 @@ import Logging
 import Rainbow
 import ShellClient
 
-extension BasicGlobalOptions {
-
-  var shellOrDefault: ShellCommand.Shell {
-    guard let shell else { return .zsh(useDashC: true) }
-    return .custom(path: shell, useDashC: true)
-  }
-}
-
-extension GlobalOptions {
-
-  var shellOrDefault: ShellCommand.Shell { basic.shellOrDefault }
-}
-
-func ensureString(
-  globals: GlobalOptions,
-  configuration: Configuration,
-  globalsKeyPath: KeyPath<GlobalOptions, String?>,
-  configurationKeyPath: KeyPath<Configuration, String?>
-) throws -> String {
-  if let global = globals[keyPath: globalsKeyPath] {
-    return global
-  }
-  guard let configuration = configuration[keyPath: configurationKeyPath] else {
-    throw RunPlaybookError.playbookNotFound
-  }
-  return configuration
-}
-
-func withSetupLogger(
-  commandName: String,
-  globals: BasicGlobalOptions,
-  quietOnlyPlaybook: Bool = false,
-  dependencies setupDependencies: (inout DependencyValues) -> Void = { _ in },
-  operation: @escaping () async throws -> Void
-) async rethrows {
-  try await withDependencies {
-    $0.logger = .init(label: "\("hpa".yellow)")
-    if quietOnlyPlaybook || !globals.quiet {
-      switch globals.verbose {
-      case 0:
-        $0.logger.logLevel = .info
-      case 1:
-        $0.logger.logLevel = .debug
-      case 2...:
-        $0.logger.logLevel = .trace
-      default:
-        $0.logger.logLevel = .info
-      }
-    }
-    $0.logger[metadataKey: "command"] = "\(commandName.blue)"
-  } operation: {
-    try await operation()
-  }
-}
-
-func withSetupLogger(
-  commandName: String,
-  globals: GlobalOptions,
-  dependencies setupDependencies: (inout DependencyValues) -> Void = { _ in },
-  operation: @escaping () async throws -> Void
-) async rethrows {
-  try await withSetupLogger(
-    commandName: commandName,
-    globals: globals.basic,
-    quietOnlyPlaybook: globals.quietOnlyPlaybook,
-    dependencies: setupDependencies,
-    operation: operation
-  )
-}
-
-func runPlaybook(
-  commandName: String,
-  globals: GlobalOptions,
-  configuration: Configuration? = nil,
-  extraArgs: [String],
-  _ args: String...
-) async throws {
-  try await runPlaybook(
-    commandName: commandName,
-    globals: globals,
-    configuration: configuration,
-    extraArgs: extraArgs,
-    args
-  )
-}
-
-private extension CliClient {
-  func ensuredConfiguration(_ configuration: Configuration?) throws -> Configuration {
-    guard let configuration else {
-      return try loadConfiguration()
-    }
-    return configuration
-  }
-}
-
 func runPlaybook(
   commandName: String,
   globals: GlobalOptions,
@@ -124,19 +29,20 @@ func runPlaybook(
       globalsKeyPath: \.playbookDir,
       configurationKeyPath: \.playbookDir
     )
-    let playbook = "\(playbookDir)/main.yml"
+    let playbook = "\(playbookDir)/\(Constants.playbookFileName)"
 
     let inventory = (try? ensureString(
       globals: globals,
       configuration: configuration,
       globalsKeyPath: \.inventoryPath,
       configurationKeyPath: \.inventoryPath
-    )) ?? "\(playbookDir)/inventory.ini"
+    )) ?? "\(playbookDir)/\(Constants.inventoryFileName)"
 
-    let defaultArgs = configuration.defaultPlaybookArgs ?? []
+    let defaultArgs = (configuration.defaultPlaybookArgs ?? [])
+      + (configuration.defaultVaultArgs ?? [])
 
     try await cliClient.runCommand(
-      quiet: globals.quietOnlyPlaybook ? true : globals.basic.quiet,
+      quiet: globals.quietOnlyPlaybook ? true : globals.quiet,
       shell: globals.shellOrDefault,
       [
         "ansible-playbook", playbook,
@@ -148,6 +54,54 @@ func runPlaybook(
   }
 }
 
+func runPlaybook(
+  commandName: String,
+  globals: GlobalOptions,
+  configuration: Configuration? = nil,
+  extraArgs: [String],
+  _ args: String...
+) async throws {
+  try await runPlaybook(
+    commandName: commandName,
+    globals: globals,
+    configuration: configuration,
+    extraArgs: extraArgs,
+    args
+  )
+}
+
+extension CliClient {
+  func ensuredConfiguration(_ configuration: Configuration?) throws -> Configuration {
+    guard let configuration else {
+      return try loadConfiguration()
+    }
+    return configuration
+  }
+}
+
+extension BasicGlobalOptions {
+
+  var shellOrDefault: ShellCommand.Shell {
+    guard let shell else { return .zsh(useDashC: true) }
+    return .custom(path: shell, useDashC: true)
+  }
+}
+
+func ensureString(
+  globals: GlobalOptions,
+  configuration: Configuration,
+  globalsKeyPath: KeyPath<GlobalOptions, String?>,
+  configurationKeyPath: KeyPath<Configuration, String?>
+) throws -> String {
+  if let global = globals[keyPath: globalsKeyPath] {
+    return global
+  }
+  guard let configuration = configuration[keyPath: configurationKeyPath] else {
+    throw RunPlaybookError.playbookNotFound
+  }
+  return configuration
+}
+
 enum RunPlaybookError: Error {
   case playbookNotFound
   case configurationError

Sources/hpa/Internal/RunVault.swift

@@ -0,0 +1,41 @@
+import Dependencies
+import ShellClient
+
+func runVault(
+  commandName: String,
+  options: VaultOptions,
+  _ args: [String]
+) async throws {
+  try await withSetupLogger(commandName: commandName, globals: options.globals) {
+    @Dependency(\.cliClient) var cliClient
+    @Dependency(\.logger) var logger
+
+    logger.debug("Begin run vault: \(options)")
+
+    let configuration = try cliClient.ensuredConfiguration(nil)
+    logger.debug("Configuration: \(configuration)")
+
+    let path: String
+    if let file = options.file {
+      path = file
+    } else {
+      path = try cliClient.findVaultFileInCurrentDirectory()
+    }
+
+    logger.debug("Vault path: \(path)")
+
+    let defaultArgs = configuration.defaultVaultArgs ?? []
+
+    try await cliClient.runCommand(
+      quiet: options.quiet,
+      shell: options.shellOrDefault,
+      ["ansible-vault"]
+        + args
+        + defaultArgs
+        + options.extraArgs
+        + [path]
+    )
+
+    fatalError()
+  }
+}

Sources/hpa/UtilsCommands/CreateTemplateCommand.swift

@@ -4,9 +4,10 @@ struct CreateProjectTemplateCommand: AsyncParsableCommand {
 
   static let commandName = "create-template"
 
-  static let configuration = CommandConfiguration.playbookCommandConfiguration(
+  static let configuration = CommandConfiguration.playbook(
     commandName: commandName,
     abstract: "Create a home performance assesment project template.",
+    parentCommand: UtilsCommand.commandName,
     examples: (label: "Create Template", example: "\(commandName) /path/to/project-template")
   )
 

Sources/hpa/UtilsCommands/GenerateConfigCommand.swift

@@ -8,7 +8,7 @@ struct GenerateConfigurationCommand: AsyncParsableCommand {
 
   static let configuration = CommandConfiguration(
     commandName: commandName,
-    abstract: "\("Generate a local configuration file.".blue)",
+    abstract: createAbstract("Generate a local configuration file."),
     discussion: """
 
     \("NOTE:".yellow) If a directory is not supplied then a configuration file will be created

Sources/hpa/VaultCommands/DecryptCommand.swift

@@ -0,0 +1,23 @@
+import ArgumentParser
+
+struct DecryptCommand: AsyncParsableCommand {
+
+  static let commandName = "decrypt"
+
+  static let configuration = CommandConfiguration(
+    commandName: commandName,
+    abstract: createAbstract("Decrypt a vault file.")
+  )
+
+  @OptionGroup var options: VaultOptions
+
+  @Option(
+    name: .shortAndLong,
+    help: "Output file."
+  )
+  var output: String?
+
+  mutating func run() async throws {
+    fatalError()
+  }
+}

Sources/hpa/VaultCommands/EncryptCommand.swift

@@ -0,0 +1,23 @@
+import ArgumentParser
+
+struct EncryptCommand: AsyncParsableCommand {
+
+  static let commandName = "encrypt"
+
+  static let configuration = CommandConfiguration(
+    commandName: commandName,
+    abstract: createAbstract("Encrypt a vault file.")
+  )
+
+  @OptionGroup var options: VaultOptions
+
+  @Option(
+    name: .shortAndLong,
+    help: "Output file."
+  )
+  var output: String?
+
+  mutating func run() async throws {
+    fatalError()
+  }
+}

Sources/hpa/VaultCommands/VaultCommand.swift

@@ -0,0 +1,14 @@
+import ArgumentParser
+
+struct VaultCommand: AsyncParsableCommand {
+
+  static let commandName = "vault"
+
+  static let configuration = CommandConfiguration(
+    commandName: commandName,
+    abstract: createAbstract("Vault commands."),
+    subcommands: [
+      EncryptCommand.self, DecryptCommand.self
+    ]
+  )
+}

Sources/hpa/VaultCommands/VaultOptions.swift

@@ -0,0 +1,31 @@
+import ArgumentParser
+
+// Holds the common options for vault commands, as they all share the
+// same structure.
+@dynamicMemberLookup
+struct VaultOptions: ParsableArguments {
+
+  @OptionGroup var globals: BasicGlobalOptions
+
+  @Option(
+    name: .shortAndLong,
+    help: "The vault file path.",
+    completion: .file()
+  )
+  var file: String?
+
+  @Argument(
+    help: "Extra arguments to pass to the vault command."
+  )
+  var extraArgs: [String] = []
+
+  subscript<T>(dynamicMember keyPath: WritableKeyPath<BasicGlobalOptions, T>) -> T {
+    get { globals[keyPath: keyPath] }
+    set { globals[keyPath: keyPath] = newValue }
+  }
+
+  subscript<T>(dynamicMember keyPath: KeyPath<BasicGlobalOptions, T>) -> T {
+    globals[keyPath: keyPath]
+  }
+
+}