feat: Adding documentation comments.

Sources/CommandClient/CommandClient.swift

@@ -110,15 +110,33 @@ public struct CommandClient: Sendable {
   }
 }
 
+/// Represents logger setup options used when running commands.
+///
+/// This set's up metadata tags and keys appropriately for the command being run,
+/// which can aid in debugging.
+///
 public struct LoggingOptions: Equatable, Sendable {
+
+  /// The command name / key that the logger is running for.
   public let commandName: String
+
+  /// The log level.
   public let logLevel: Logger.Level
 
+  /// Create the logging options.
+  ///
+  /// - Parameters:
+  ///   - commandName: The command name / key that the logger is running for.
+  /// - logLevel: The log level.
   public init(commandName: String, logLevel: Logger.Level) {
     self.commandName = commandName
     self.logLevel = logLevel
   }
 
+  /// Perform an operation with a setup logger.
+  ///
+  /// - Parameters:
+  ///   - operation: The operation to perform with the setup logger.
   @discardableResult
   public func withLogger<T>(
     operation: @Sendable @escaping () async throws -> T

Sources/ConfigurationClient/Configuration.swift

@@ -52,11 +52,34 @@ public struct Configuration: Codable, Equatable, Sendable {
     )
   }
 
+  /// Configuration options for running `pandoc` commands that generate files from
+  /// a templated directory.
+  ///
+  /// ## NOTE: Most of these can also be set by the template repository variables.
+  ///
+  ///
   public struct Generate: Codable, Equatable, Sendable {
+
+    /// Specifiy the name of the build directory, generally `.build`.
     public let buildDirectory: String?
+
+    /// Specifiy the files used in the `pandoc` command to generate a final output file.
+    ///
+    /// - SeeAlso: `pandoc --help`
     public let files: [String]?
+
+    /// Specifiy the files used in the `pandoc` command to include in the header.
+    ///
+    /// - SeeAlso: `pandoc --help`
     public let includeInHeader: [String]?
+
+    /// The default name of the output file, this does not require the file extension as we will
+    /// add it based on the command that is called. Generally this is 'Report'.
+    ///
     public let outputFileName: String?
+
+    /// The default pdf engine to use when generating pdf files using `pandoc`.  Generally
+    /// this is 'xelatex'.
     public let pdfEngine: String?
 
     public init(
@@ -73,8 +96,10 @@ public struct Configuration: Codable, Equatable, Sendable {
       self.pdfEngine = pdfEngine
     }
 
+    /// Represents the default configuration for generating files using `pandoc`.
     public static let `default` = Self.mock
 
+    /// Represents mock configuration for generating files using `pandoc`.
     public static var mock: Self {
       .init(
         buildDirectory: ".build",
@@ -86,10 +111,22 @@ public struct Configuration: Codable, Equatable, Sendable {
     }
   }
 
+  /// Configuration options for the ansible-hpa-playbook.  The playbook is
+  /// the primary driver of templating files, generating repository templates, and building
+  /// projects.
+  ///
+  /// ## NOTE: These are generally only used for local development of the playbook.
+  ///
+  ///
   public struct Playbook: Codable, Equatable, Sendable {
 
+    /// The directory location of the ansible playbook.
     public let directory: String?
+
+    /// The inventory file name / location.
     public let inventory: String?
+
+    /// The playbook version, branch, or tag.
     public let version: String?
 
     public init(
@@ -105,9 +142,28 @@ public struct Configuration: Codable, Equatable, Sendable {
     public static var mock: Self { .init() }
   }
 
+  /// Configuration settings for the user's template repository or directory.
+  ///
+  /// A template is what is used to create projects for a user.  Generally they setup
+  /// their own template by customizing the default template to their needs.  This template
+  /// can then be stored as a git repository or on the local file system.
+  ///
+  /// The template will hold variables and files that are used to generate the final output
+  /// files using `pandoc`.  Generally the template will hold files that may only need setup once,
+  /// such as header files, footer files, and definitions.
+  ///
+  /// The project directory contains dynamic variables / files that need edited in order
+  /// to generate the final output. This allows the project directory to remain smaller so the user
+  /// can more easily focus on the tasks required to generate the final output files.
   public struct Template: Codable, Equatable, Sendable {
+
+    /// A url of the template when it is a remote git repository.
     public let url: String?
+
+    /// The version, branch, or tag of the remote repository.
     public let version: String?
+
+    /// The local directory that contains the template on the local file system.
     public let directory: String?
 
     public init(
@@ -129,8 +185,23 @@ public struct Configuration: Codable, Equatable, Sendable {
     }
   }
 
+  /// Configuration for `ansible-vault` commands.  Ansible vault is used to encrypt and
+  /// decrypt sensitive data.  This allows for variables, such as customer name and address
+  /// to be stored along with the project in an encrypted file so that it is safer to store them.
+  ///
+  /// These may also be used in general `ansible-playbook` commands if the `useVaultArgs` is set
+  /// to `true` in a users configuration.
+  ///
   public struct Vault: Codable, Equatable, Sendable {
+
+    /// A list of arguments / options that get passed to the `ansible-vault` command.
+    ///
+    /// - SeeAlso: `ansible-vault --help`
     public let args: [String]?
+
+    /// An id that is used during encrypting `ansible-vault` files.
+    ///
+    /// - SeeAlso: `ansible-vault encrypt --help`
     public let encryptId: String?
 
     public init(

Sources/ConfigurationClient/ConfigurationClient.swift

@@ -6,24 +6,57 @@ import Foundation
 import ShellClient
 
 public extension DependencyValues {
+
+  /// Interacts with the user's configuration.
   var configurationClient: ConfigurationClient {
     get { self[ConfigurationClient.self] }
     set { self[ConfigurationClient.self] = newValue }
   }
 }
 
+/// Represents actions that can be taken on user's configuration files.
+///
+///
 @DependencyClient
 public struct ConfigurationClient: Sendable {
+
+  /// Find the user's configuration, searches in the current directory and default
+  /// locations where configuration can be stored. An error is thrown if no configuration
+  /// is found.
   public var find: @Sendable () async throws -> File
+
+  /// Generate a configuration file for the user.
   public var generate: @Sendable (GenerateOptions) async throws -> String
+
+  /// Load a configuration file from the given file location. If the file is
+  /// not provided then we return an empty configuraion item.
   public var load: @Sendable (File?) async throws -> Configuration
+
+  /// Write the configuration to the given file, optionally forcing an overwrite of
+  /// the file.
+  ///
+  /// ## NOTE: This uses the `fileClient.write` under the hood, so if you need to control
+  ///          what happens during tests, then you can customize the behavior of the fileClient.
+  ///
   var write: @Sendable (File, Configuration, Bool) async throws -> Void
 
+  /// Find the user's configuration and load it.
   public func findAndLoad() async throws -> Configuration {
     let file = try? await find()
     return try await load(file)
   }
 
+  /// Write the configuration to the given file, optionally forcing an overwrite of
+  /// the file. If a file already exists and force is not supplied then we will create
+  /// a backup of the existing file.
+  ///
+  /// ## NOTE: This uses the `fileClient.write` under the hood, so if you need to control
+  ///          what happens during tests, then you can customize the behavior of the fileClient.
+  ///
+  /// - Parameters:
+  ///   - configuration: The configuration to save.
+  ///   - file: The file location and type to save.
+  ///   - force: Force overwritting if a file already exists.
   public func write(
     _ configuration: Configuration,
     to file: File,
@@ -60,15 +93,12 @@ extension ConfigurationClient: DependencyKey {
 
   public static func live(environment: [String: String]) -> Self {
     let liveClient = LiveConfigurationClient(environment: environment)
-    return .init {
-      try await liveClient.find()
-    } generate: {
-      try await liveClient.generate($0)
-    } load: { file in
-      try await liveClient.load(file: file)
-    } write: { file, configuration, force in
-      try await liveClient.write(configuration, to: file, force: force)
-    }
+    return .init(
+      find: { try await liveClient.find() },
+      generate: { try await liveClient.generate($0) },
+      load: { try await liveClient.load(file: $0) },
+      write: { try await liveClient.write($1, to: $0, force: $2) }
+    )
   }
 
   public static var liveValue: Self {
@@ -221,10 +251,12 @@ struct LiveConfigurationClient {
     to file: File,
     force: Bool
   ) async throws {
-    if !force {
-      guard !fileManager.fileExists(file.url) else {
-        throw ConfigurationError.fileExists(path: file.path)
-      }
+    let exists = fileManager.fileExists(file.url)
+
+    if !force, exists {
+      let backupUrl = file.url.appendingPathExtension(".back")
+      logger.warning("File exists, creating a backup of the existing file at: \(backupUrl.cleanFilePath)")
+      try await fileManager.copy(file.url, backupUrl)
     }
 
     let data: Data

Sources/ConfigurationClient/Constants.swift

@@ -1,3 +1,5 @@
+/// Represents keys in the environment that can be used to locate a user's
+/// configuration file.
 @_spi(Internal)
 public enum EnvironmentKey {
   static let xdgConfigHome = "XDG_CONFIG_HOME"
@@ -5,6 +7,7 @@ public enum EnvironmentKey {
   static let hpaConfigFile = "HPA_CONFIG_FILE"
 }
 
+/// Represents keys that are used internally for directory names, file names, etc.
 @_spi(Internal)
 public enum HPAKey {
   public static let configDirName = "hpa"

Sources/ConfigurationClient/File.swift

@@ -2,11 +2,21 @@ import FileClient
 import Foundation
 
 /// Represents a file location and type on disk for a configuration file.
+///
+/// Currently the supported formats are `json` or `toml`.  Toml is the default /
+/// preferred format because it allows comments in the file and is easy to understand.
+///
 public enum File: Equatable, Sendable {
 
   case json(URL)
   case toml(URL)
 
+  /// Attempts to create a file with the given url.
+  ///
+  /// ## NOTE: There are no checks on if a file / path actually exists or not.
+  ///
+  /// If the file does not have a suffix of `json` or `toml` then
+  /// we will return `nil`.
   public init?(_ url: URL) {
     if url.cleanFilePath.hasSuffix("json") {
       self = .json(url)
@@ -17,18 +27,17 @@ public enum File: Equatable, Sendable {
     }
   }
 
+  /// Attempts to create a file with the given path.
+  ///
+  /// ## NOTE: There are no checks on if a file / path actually exists or not.
+  ///
+  /// If the file does not have a suffix of `json` or `toml` then
+  /// we will return `nil`.
   public init?(_ path: String) {
     self.init(URL(filePath: path))
   }
 
-  public static func json(_ path: String) -> Self {
-    .json(URL(filePath: path))
-  }
-
-  public static func toml(_ path: String) -> Self {
-    .toml(URL(filePath: path))
-  }
-
+  /// Get the url of the file.
   public var url: URL {
     switch self {
     case let .json(url): return url
@@ -36,10 +45,14 @@ public enum File: Equatable, Sendable {
     }
   }
 
+  /// Get the path string of the file.
   public var path: String {
     url.cleanFilePath
   }
 
+  /// Represents the default file path for a user's configuration.
+  ///
+  /// Which is `~/.config/hpa/config.toml`
   public static var `default`: Self {
     let fileUrl = FileManager.default
       .homeDirectoryForCurrentUser