feat: Integrates a precedence configuration setting, needs a command-line option.

Package.swift

@@ -87,6 +87,7 @@ let package = Package(
     .target(
       name: "LoggingExtensions",
       dependencies: [
+        .product(name: "CustomDump", package: "swift-custom-dump"),
         .product(name: "Dependencies", package: "swift-dependencies"),
         .product(name: "ShellClient", package: "swift-shell-client")
       ]

Sources/CliClient/CliClientError.swift

@@ -1,8 +1,12 @@
+import ConfigurationClient
+
 enum CliClientError: Error {
   case gitDirectoryNotFound
   case fileExists(path: String)
   case fileDoesNotExist(path: String)
   case failedToParseVersionFile
-  case semVarNotFound
+  case semVarNotFound(message: String)
+  case strategyNotFound(configuration: Configuration)
   case preReleaseParsingError(String)
+  case versionStringNotFound
 }

Sources/CliClient/Internal/CliClient+run.swift

@@ -4,25 +4,29 @@ import Dependencies
 import FileClient
 import Foundation
 import GitClient
+import LoggingExtensions
 
-@_spi(Internal)
-public extension CliClient.SharedOptions {
+extension CliClient.SharedOptions {
 
   /// All cli-client calls should run through this, it set's up logging,
   /// loads configuration, and generates the current version based on the
   /// configuration.
   @discardableResult
   func run(
-    _ operation: (CurrentVersionContainer) async throws -> Void
+    _ operation: (VersionContainer) async throws -> Void
   ) async rethrows -> String {
     try await loggingOptions.withLogger {
       // Load the default configuration, if it exists.
       try await withMergedConfiguration { configuration in
         @Dependency(\.logger) var logger
 
-        var configurationString = ""
-        customDump(configuration, to: &configurationString)
-        logger.trace("\nConfiguration: \(configurationString)")
+        guard let strategy = configuration.strategy else {
+          throw CliClientError.strategyNotFound(configuration: configuration)
+        }
+
+        logger.dump(configuration, level: .trace) {
+          "\nConfiguration: \($0)"
+        }
 
         // This will fail if the target url is not set properly.
         let targetUrl = try configuration.targetUrl(gitDirectory: projectDirectory)
@@ -30,10 +34,7 @@ public extension CliClient.SharedOptions {
 
         // Perform the operation, which generates the new version and writes it.
         try await operation(
-          configuration.currentVersion(
-            targetUrl: targetUrl,
-            gitDirectory: projectDirectory
-          )
+          .load(projectDirectory: projectDirectory, strategy: strategy, url: targetUrl)
         )
 
         // Return the file path we wrote the version to.
@@ -54,10 +55,9 @@ public extension CliClient.SharedOptions {
       logger.trace("Merging branch strategy.")
       // strategy = .branch(branch)
     } else if let semvar = configurationToMerge?.strategy?.semvar {
-      logger.trace("Merging semvar strategy.")
-      var semvarString = ""
-      customDump(semvar, to: &semvarString)
-      logger.trace("\(semvarString)")
+      logger.dump(semvar, level: .trace) {
+        "Merging semvar strategy:\n\($0)"
+      }
     }
 
     return try await configurationClient.withConfiguration(
@@ -75,63 +75,52 @@ public extension CliClient.SharedOptions {
       try await fileClient.write(string: string, to: url)
     } else {
       logger.debug("Skipping, due to dry-run being passed.")
-      // logger.info("\n\(string)\n")
     }
   }
 
-  func write(_ currentVersion: CurrentVersionContainer) async throws {
+  func write(_ currentVersion: VersionContainer) async throws {
     @Dependency(\.logger) var logger
+    logger.trace("Begin writing version.")
 
-    let version = try currentVersion.version.string(allowPreReleaseTag: allowPreReleaseTag)
-    if !dryRun {
-      logger.debug("Version: \(version)")
-    } else {
-      logger.info("Version: \(version)")
+    let hasChanges: Bool
+    let targetUrl: URL
+    let usesOptionalType: Bool
+    let versionString: String?
+
+    switch currentVersion {
+    case let .branch(branch):
+      hasChanges = branch.hasChanges
+      targetUrl = branch.targetUrl
+      usesOptionalType = branch.usesOptionalType
+      versionString = branch.versionString
+    case let .semvar(semvar):
+      hasChanges = semvar.hasChanges
+      targetUrl = semvar.targetUrl
+      usesOptionalType = semvar.usesOptionalType
+      versionString = semvar.versionString(withPreRelease: allowPreReleaseTag)
     }
 
-    let template = currentVersion.usesOptionalType ? Template.optional(version) : Template.nonOptional(version)
+    // if !hasChanges {
+    //   logger.debug("No changes from loaded version, not writing next version.")
+    //   return
+    // }
+
+    guard let versionString else {
+      throw CliClientError.versionStringNotFound
+    }
+
+    // let version = try currentVersion.version.string(allowPreReleaseTag: allowPreReleaseTag)
+
+    if !dryRun {
+      logger.debug("Version: \(versionString)")
+    } else {
+      logger.info("Version: \(versionString)")
+    }
+
+    let template = usesOptionalType ? Template.optional(versionString) : Template.nonOptional(versionString)
     logger.trace("Template string: \(template)")
 
-    try await write(template, to: currentVersion.targetUrl)
-  }
-}
-
-// TODO: Add optional property for currentVersion (loaded version from file)
-//       and rename version to nextVersion.
-
-@_spi(Internal)
-public struct CurrentVersionContainer: Sendable {
-
-  let targetUrl: URL
-  let currentVersion: CurrentVersion?
-  let version: Version
-
-  var usesOptionalType: Bool {
-    switch version {
-    case .string: return false
-    case let .semvar(_, usesOptionalType, _): return usesOptionalType
-    }
-  }
-
-  public enum CurrentVersion: Sendable {
-    case branch(String, usesOptionalType: Bool)
-    case semvar(SemVar, usesOptionalType: Bool)
-  }
-
-  public enum Version: Sendable {
-    // TODO: Call this branch for consistency.
-    case string(String)
-    // TODO: Remove has changes when currentVersion/nextVersion is implemented.
-    case semvar(SemVar, usesOptionalType: Bool = true, hasChanges: Bool)
-
-    func string(allowPreReleaseTag: Bool) throws -> String {
-      switch self {
-      case let .string(string):
-        return string
-      case let .semvar(semvar, usesOptionalType: _, hasChanges: _):
-        return semvar.versionString(withPreReleaseTag: allowPreReleaseTag)
-      }
-    }
+    try await write(template, to: targetUrl)
   }
 }
 
@@ -152,30 +141,30 @@ extension CliClient.SharedOptions {
 
       @Dependency(\.logger) var logger
 
-      switch container.version {
-      case .string: // When we did not parse a semvar, just write whatever we parsed for the current version.
+      switch container {
+      case .branch: // When we did not parse a semvar, just write whatever we parsed for the current version.
         logger.debug("Failed to parse semvar, but got current version string.")
         try await write(container)
 
-      case let .semvar(semvar, usesOptionalType: usesOptionalType, hasChanges: hasChanges):
-        logger.debug("Semvar prior to bumping: \(semvar)")
-        let bumped = semvar.bump(type)
-        let version = bumped.versionString(withPreReleaseTag: allowPreReleaseTag)
+      case let .semvar(semvar):
 
-        guard bumped != semvar || hasChanges else {
-          logger.debug("No change, skipping.")
-          return
+        let version: SemVar?
+
+        switch semvar.precedence ?? .default {
+        case .file:
+          version = semvar.loadedVersion ?? semvar.strategyVersion
+        case .strategy:
+          version = semvar.strategyVersion ?? semvar.loadedVersion
         }
 
-        logger.debug("Bumped version: \(version)")
-
-        if dryRun {
-          logger.info("Version: \(version)")
-          return
+        // let version = semvar.loadedVersion ?? semvar.nextVersion
+        guard let version else {
+          throw CliClientError.semVarNotFound(message: "Failed to parse a valid semvar to bump.")
         }
-
-        let template = usesOptionalType ? Template.optional(version) : Template.build(version)
-        try await write(template, to: container.targetUrl)
+        logger.dump(version, level: .debug) { "Version prior to bumping:\n\($0)" }
+        let bumped = version.bump(type)
+        logger.dump(bumped, level: .trace) { "Bumped version:\n\($0)" }
+        try await write(.semvar(semvar.withUpdateNextVersion(bumped)))
       }
     }
   }

Sources/CliClient/Internal/Configuration+targetUrl.swift

@@ -0,0 +1,57 @@
+import ConfigurationClient
+import CustomDump
+import Dependencies
+import Foundation
+import GitClient
+import ShellClient
+
+extension Configuration {
+  func targetUrl(gitDirectory: String?) throws -> URL {
+    guard let target else {
+      throw ConfigurationParsingError.targetNotFound
+    }
+    return try target.url(gitDirectory: gitDirectory)
+  }
+}
+
+private extension Configuration.Target {
+  func url(gitDirectory: String?) throws -> URL {
+    @Dependency(\.logger) var logger
+
+    let filePath: String
+
+    if let path {
+      filePath = path
+    } else {
+      guard let module else {
+        throw ConfigurationParsingError.pathOrModuleNotSet
+      }
+
+      var path = module.name
+      logger.debug("module.name: \(path)")
+
+      if path.hasPrefix("./") {
+        path = String(path.dropFirst(2))
+      }
+
+      if !path.hasPrefix("Sources") {
+        logger.debug("no prefix")
+        path = "Sources/\(path)"
+      }
+
+      filePath = "\(path)/\(module.fileNameOrDefault)"
+    }
+
+    if let gitDirectory {
+      return URL(filePath: "\(gitDirectory)/\(filePath)")
+    }
+    return URL(filePath: filePath)
+  }
+}
+
+enum ConfigurationParsingError: Error {
+  case targetNotFound
+  case pathOrModuleNotSet
+  case versionStrategyError(message: String)
+  case versionStrategyNotFound
+}

Sources/CliClient/Internal/ConfigurationExtensions.swift

@@ -1,286 +0,0 @@
-import ConfigurationClient
-import Dependencies
-import Foundation
-import GitClient
-import ShellClient
-
-extension Configuration {
-  func targetUrl(gitDirectory: String?) throws -> URL {
-    guard let target else {
-      throw ConfigurationParsingError.targetNotFound
-    }
-    return try target.url(gitDirectory: gitDirectory)
-  }
-
-  func currentVersion(targetUrl: URL, gitDirectory: String?) async throws -> CurrentVersionContainer {
-    guard let strategy else {
-      throw ConfigurationParsingError.versionStrategyNotFound
-    }
-    return try await strategy.currentVersion(
-      targetUrl: targetUrl,
-      gitDirectory: gitDirectory
-    )
-  }
-}
-
-private extension Configuration.SemVar.Strategy {
-
-  func getSemvar(gitDirectory: String? = nil) async throws -> SemVar {
-    @Dependency(\.asyncShellClient) var asyncShellClient
-    @Dependency(\.gitClient) var gitClient
-    @Dependency(\.logger) var logger
-
-    let semvar: SemVar?
-
-    switch self {
-    case let .command(arguments: arguments):
-      logger.trace("Using custom command strategy with: \(arguments)")
-      semvar = try await SemVar(string: asyncShellClient.background(.init(arguments)))
-    case let .gitTag(exactMatch: exactMatch):
-      logger.trace("Using gitTag strategy.")
-      semvar = try await gitClient.version(.init(
-        gitDirectory: gitDirectory,
-        style: .tag(exactMatch: exactMatch ?? false)
-      )).semVar
-    }
-
-    guard let semvar else {
-      throw CliClientError.semVarNotFound
-    }
-
-    return semvar
-  }
-}
-
-@_spi(Internal)
-public extension Configuration.SemVar {
-
-  // TODO: Need to handle custom command semvar strategy.
-
-  func currentVersion(file: URL, gitDirectory: String? = nil) async throws -> CurrentVersionContainer.Version {
-    @Dependency(\.fileClient) var fileClient
-    @Dependency(\.gitClient) var gitClient
-    @Dependency(\.logger) var logger
-
-    let fileOutput = try? await fileClient.semvar(file: file, gitDirectory: gitDirectory)
-    var semVar = fileOutput?.semVar
-
-    logger.trace("file output semvar: \(String(describing: semVar))")
-
-    let usesOptionalType = fileOutput?.usesOptionalType
-
-    // We parsed a semvar from the existing file, use it.
-    if semVar != nil {
-      let semvarWithPreRelease = try await applyingPreRelease(semVar!, gitDirectory)
-
-      return .semvar(
-        semvarWithPreRelease,
-        usesOptionalType: usesOptionalType ?? false,
-        hasChanges: semvarWithPreRelease != semVar
-      )
-    }
-
-    if requireExistingFile == true {
-      logger.debug("Failed to parse existing file, and caller requires it.")
-      throw CliClientError.fileDoesNotExist(path: file.cleanFilePath)
-    }
-
-    logger.trace("Does not require existing file, checking git-tag.")
-
-    // TODO: Is this what we want to do here?  Seems that the strategy should be set by the client / configuration.
-
-    // Didn't have existing semVar loaded from file, so check for git-tag.
-    semVar = try await gitClient.version(.init(
-      gitDirectory: gitDirectory,
-      style: .tag(exactMatch: false)
-    )).semVar
-
-    if semVar != nil {
-      let semvarWithPreRelease = try await applyingPreRelease(semVar!, gitDirectory)
-      return .semvar(
-        semvarWithPreRelease,
-        usesOptionalType: usesOptionalType ?? false,
-        hasChanges: semvarWithPreRelease != semVar
-      )
-    }
-
-    if requireExistingSemVar == true {
-      logger.trace("Caller requires existing semvar and it was not found in file or git-tag.")
-      throw CliClientError.semVarNotFound
-    }
-
-    // Semvar doesn't exist, so create a new one.
-    logger.trace("Generating new semvar.")
-    return try await .semvar(
-      applyingPreRelease(.init(), gitDirectory),
-      usesOptionalType: usesOptionalType ?? false,
-      hasChanges: true
-    )
-  }
-}
-
-private extension Configuration.VersionStrategy {
-
-  // TODO: This should just load the `nextVersion`, and should probably live on CurrentVersionContainer.
-
-  // FIX: Fix what's passed to current verions here.
-  func currentVersion(targetUrl: URL, gitDirectory: String?) async throws -> CurrentVersionContainer {
-    @Dependency(\.gitClient) var gitClient
-
-    guard let branch else {
-      guard let semvar else {
-        throw ConfigurationParsingError.versionStrategyError(
-          message: "Neither branch nor semvar set on configuration."
-        )
-      }
-      return try await .init(
-        targetUrl: targetUrl,
-        currentVersion: nil,
-        version: semvar.currentVersion(file: targetUrl, gitDirectory: gitDirectory)
-      )
-    }
-    return try await .init(
-      targetUrl: targetUrl,
-      currentVersion: nil,
-      version: .string(
-        gitClient.version(includeCommitSha: branch.includeCommitSha, gitDirectory: gitDirectory)
-      )
-    )
-  }
-}
-
-private extension Configuration.Target {
-  func url(gitDirectory: String?) throws -> URL {
-    @Dependency(\.logger) var logger
-
-    let filePath: String
-
-    if let path {
-      filePath = path
-    } else {
-      guard let module else {
-        throw ConfigurationParsingError.pathOrModuleNotSet
-      }
-
-      var path = module.name
-      logger.debug("module.name: \(path)")
-
-      if path.hasPrefix("./") {
-        path = String(path.dropFirst(2))
-      }
-
-      if !path.hasPrefix("Sources") {
-        logger.debug("no prefix")
-        path = "Sources/\(path)"
-      }
-
-      filePath = "\(path)/\(module.fileNameOrDefault)"
-    }
-
-    if let gitDirectory {
-      return URL(filePath: "\(gitDirectory)/\(filePath)")
-    }
-    return URL(filePath: filePath)
-  }
-}
-
-private extension GitClient {
-  func version(includeCommitSha: Bool, gitDirectory: String?) async throws -> String {
-    @Dependency(\.gitClient) var gitClient
-
-    return try await gitClient.version(.init(
-      gitDirectory: gitDirectory,
-      style: .branch(commitSha: includeCommitSha)
-    )).description
-  }
-}
-
-private extension Configuration.PreRelease {
-
-  func preReleaseString(gitDirectory: String?) async throws -> PreReleaseString? {
-    guard let strategy else { return nil }
-
-    @Dependency(\.asyncShellClient) var asyncShellClient
-    @Dependency(\.gitClient) var gitClient
-    @Dependency(\.logger) var logger
-
-    var preReleaseString: String
-    var suffix = true
-    var allowsPrefix = true
-
-    switch strategy {
-    case let .branch(includeCommitSha: includeCommitSha):
-      logger.trace("Branch pre-release strategy, includeCommitSha: \(includeCommitSha).")
-      preReleaseString = try await gitClient.version(
-        includeCommitSha: includeCommitSha,
-        gitDirectory: gitDirectory
-      )
-    case let .command(arguments: arguments, allowPrefix: allowPrefix):
-      logger.trace("Command pre-release strategy, arguments: \(arguments).")
-      preReleaseString = try await asyncShellClient.background(.init(arguments))
-      allowsPrefix = allowPrefix ?? false
-    case .gitTag:
-      logger.trace("Git tag pre-release strategy.")
-      logger.trace("This will ignore any set prefix.")
-      suffix = false
-      allowsPrefix = false
-      preReleaseString = try await gitClient.version(.init(
-        gitDirectory: gitDirectory,
-        style: .tag(exactMatch: false)
-      )).description
-    }
-
-    if let prefix, allowsPrefix {
-      preReleaseString = "\(prefix)-\(preReleaseString)"
-    }
-
-    guard suffix else { return .semvar(preReleaseString) }
-    return .suffix(preReleaseString)
-  }
-
-  enum PreReleaseString: Sendable {
-    case suffix(String)
-    case semvar(String)
-  }
-}
-
-private extension Configuration.SemVar {
-
-  func applyingPreRelease(_ semvar: SemVar, _ gitDirectory: String?) async throws -> SemVar {
-    @Dependency(\.logger) var logger
-    logger.trace("Start apply pre-release to: \(semvar)")
-
-    guard let preReleaseStrategy = self.preRelease,
-          let preRelease = try await preReleaseStrategy.preReleaseString(gitDirectory: gitDirectory)
-    else {
-      logger.trace("No pre-release strategy, returning original semvar.")
-      return semvar
-    }
-
-    logger.trace("Pre-release string: \(preRelease)")
-
-    switch preRelease {
-    case let .suffix(string):
-      return semvar.applyingPreRelease(string)
-    case let .semvar(string):
-      guard let semvar = SemVar(string: string) else {
-        throw CliClientError.preReleaseParsingError(string)
-      }
-      if let prefix = self.preRelease?.prefix {
-        var prefixString = prefix
-        if let preReleaseString = semvar.preRelease {
-          prefixString = "\(prefix)-\(preReleaseString)"
-        }
-        return semvar.applyingPreRelease(prefixString)
-      }
-      return semvar
-    }
-  }
-}
-
-enum ConfigurationParsingError: Error {
-  case targetNotFound
-  case pathOrModuleNotSet
-  case versionStrategyError(message: String)
-  case versionStrategyNotFound
-}

Sources/CliClient/Internal/FileClient+semVar.swift

@@ -5,44 +5,35 @@ import GitClient
 
 @_spi(Internal)
 public extension FileClient {
-
-  func loadCurrentVersion(
-    url: URL,
-    gitDirectory: String?,
-    expectsBranch: Bool
-  ) async throws -> CurrentVersionContainer.CurrentVersion? {
-    @Dependency(\.logger) var logger
-
-    switch expectsBranch {
-    case true:
-      let (string, usesOptionalType) = try await branch(file: url, gitDirectory: gitDirectory)
-      logger.debug("Loaded branch: \(string)")
-      return .branch(string, usesOptionalType: usesOptionalType)
-    case false:
-      let (semvar, usesOptionalType) = try await semvar(file: url, gitDirectory: gitDirectory)
-      guard let semvar else { return nil }
-      logger.debug("Semvar: \(semvar)")
-      return .semvar(semvar, usesOptionalType: usesOptionalType)
-    }
-  }
-
-  // TODO: Make private.
   func branch(
     file: URL,
-    gitDirectory: String?
-  ) async throws -> (string: String, usesOptionalType: Bool) {
-    let (string, usesOptionalType) = try await getVersionString(fileUrl: file, gitDirectory: gitDirectory)
-    return (string, usesOptionalType)
+    gitDirectory: String?,
+    requireExistingFile: Bool
+  ) async throws -> (string: String, usesOptionalType: Bool)? {
+    let loaded = try? await getVersionString(fileUrl: file, gitDirectory: gitDirectory)
+    guard let loaded else {
+      if requireExistingFile {
+        throw CliClientError.fileDoesNotExist(path: file.cleanFilePath)
+      }
+      return nil
+    }
+    return (loaded.0, loaded.1)
   }
 
-  // TODO: Make private.
   func semvar(
     file: URL,
-    gitDirectory: String?
-  ) async throws -> (semVar: SemVar?, usesOptionalType: Bool) {
-    let (string, usesOptionalType) = try await getVersionString(fileUrl: file, gitDirectory: gitDirectory)
-    let semvar = SemVar(string: string)
-    return (semvar, usesOptionalType)
+    gitDirectory: String?,
+    requireExistingFile: Bool
+  ) async throws -> (semVar: SemVar?, usesOptionalType: Bool)? {
+    let loaded = try? await getVersionString(fileUrl: file, gitDirectory: gitDirectory)
+    guard let loaded else {
+      if requireExistingFile {
+        throw CliClientError.fileDoesNotExist(path: file.cleanFilePath)
+      }
+      return nil
+    }
+    let semvar = SemVar(string: loaded.0)
+    return (semvar, loaded.1)
   }
 
   private func getVersionString(

Sources/CliClient/Internal/Semvar+nextVersion.swift

@@ -0,0 +1,90 @@
+import ConfigurationClient
+import Foundation
+import GitClient
+import LoggingExtensions
+import ShellClient
+
+extension SemVar {
+  static func nextVersion(
+    configuration: Configuration.SemVar,
+    projectDirectory: String?
+  ) async throws -> Self? {
+    @Dependency(\.asyncShellClient) var asyncShellClient
+    @Dependency(\.gitClient) var gitClient
+    @Dependency(\.logger) var logger
+
+    guard let strategy = configuration.strategy else { return nil }
+
+    let semvarString: String
+
+    switch strategy {
+    case let .gitTag(exactMatch: exactMatch):
+      logger.trace("Loading semvar gitTag strategy...")
+
+      semvarString = try await gitClient.version(.init(
+        gitDirectory: projectDirectory,
+        style: .tag(exactMatch: exactMatch ?? false)
+      )).description
+
+    case let .command(arguments: arguments):
+      logger.trace("Loading semvar custom command strategy: \(arguments)")
+      semvarString = try await asyncShellClient.background(.init(arguments))
+    }
+
+    var preReleaseString: String?
+    if let preRelease = configuration.preRelease,
+       configuration.allowPreRelease ?? true
+    {
+      preReleaseString = try await preRelease.get(projectDirectory: projectDirectory)
+    }
+
+    let semvar = SemVar(string: semvarString)
+
+    if let preReleaseString {
+      return semvar?.applyingPreRelease(preReleaseString)
+    }
+
+    return semvar
+  }
+}
+
+private extension Configuration.PreRelease {
+
+  func get(projectDirectory: String?) async throws -> String? {
+    @Dependency(\.asyncShellClient) var asyncShellClient
+    @Dependency(\.gitClient) var gitClient
+    @Dependency(\.logger) var logger
+
+    var allowsPrefix = true
+    var preReleaseString: String
+
+    guard let strategy else { return nil }
+    switch strategy {
+    case let .branch(includeCommitSha: includeCommitSha):
+      logger.trace("Loading pre-relase branch strategy...")
+      preReleaseString = try await gitClient.version(.init(
+        gitDirectory: projectDirectory,
+        style: .branch(commitSha: includeCommitSha)
+      )).description
+
+    case .gitTag:
+      logger.trace("Loading pre-relase gitTag strategy...")
+      preReleaseString = try await gitClient.version(.init(
+        gitDirectory: projectDirectory,
+        style: .tag(exactMatch: false)
+      )).description
+
+    case let .command(arguments: arguments, allowPrefix: allowPrefix):
+      logger.trace("Loading pre-relase custom command strategy...")
+      allowsPrefix = allowPrefix ?? false
+      preReleaseString = try await asyncShellClient.background(.init(arguments))
+    }
+
+    if let prefix, allowsPrefix {
+      preReleaseString = "\(prefix)-\(preReleaseString)"
+    }
+
+    logger.trace("Pre-release string: \(preReleaseString)")
+    return preReleaseString
+  }
+}

Sources/CliClient/Internal/VersionContainer.swift

@@ -0,0 +1,182 @@
+import ConfigurationClient
+import CustomDump
+import Dependencies
+import FileClient
+import Foundation
+import LoggingExtensions
+
+enum VersionContainer: Sendable {
+  case branch(CurrentVersionContainer<String>)
+  case semvar(CurrentVersionContainer<SemVar>)
+
+  static func load(
+    projectDirectory: String?,
+    strategy: Configuration.VersionStrategy,
+    url: URL
+  ) async throws -> Self {
+    switch strategy {
+    case let .branch(includeCommitSha: includeCommitSha):
+      return try await .branch(.load(
+        branch: .init(includeCommitSha: includeCommitSha),
+        gitDirectory: projectDirectory,
+        url: url
+      ))
+    case .semvar:
+      return try await .semvar(.load(
+        semvar: strategy.semvar!,
+        gitDirectory: projectDirectory,
+        url: url
+      ))
+    }
+  }
+}
+
+// TODO: Add a precedence field for which version to prefer, should also be specified in
+//       configuration.
+struct CurrentVersionContainer<Version> {
+  let targetUrl: URL
+  let usesOptionalType: Bool
+  let loadedVersion: Version?
+  let precedence: Configuration.SemVar.Precedence?
+  let strategyVersion: Version?
+}
+
+extension CurrentVersionContainer: Equatable where Version: Equatable {
+
+  var hasChanges: Bool {
+    switch (loadedVersion, strategyVersion) {
+    case (.none, .none):
+      return false
+    case (.some, .none),
+         (.none, .some):
+      return true
+    case let (.some(loaded), .some(next)):
+      return loaded == next
+    }
+  }
+}
+
+extension CurrentVersionContainer: Sendable where Version: Sendable {}
+
+extension CurrentVersionContainer where Version == String {
+
+  static func load(
+    branch: Configuration.Branch,
+    gitDirectory: String?,
+    url: URL
+  ) async throws -> Self {
+    @Dependency(\.fileClient) var fileClient
+    @Dependency(\.gitClient) var gitClient
+
+    let loaded = try await fileClient.branch(
+      file: url,
+      gitDirectory: gitDirectory,
+      requireExistingFile: false
+    )
+
+    let next = try await gitClient.version(.init(
+      gitDirectory: gitDirectory,
+      style: .branch(commitSha: branch.includeCommitSha)
+    ))
+
+    return .init(
+      targetUrl: url,
+      usesOptionalType: loaded?.1 ?? true,
+      loadedVersion: loaded?.0,
+      precedence: nil,
+      strategyVersion: next.description
+    )
+  }
+
+  var versionString: String? {
+    loadedVersion ?? strategyVersion
+  }
+}
+
+extension CurrentVersionContainer where Version == SemVar {
+
+  // TODO: Update to use precedence and not fetch `nextVersion` if we loaded a file version.
+  static func load(semvar: Configuration.SemVar, gitDirectory: String?, url: URL) async throws -> Self {
+    @Dependency(\.fileClient) var fileClient
+    @Dependency(\.logger) var logger
+
+    logger.trace("Begin loading semvar from: \(url.cleanFilePath)")
+
+    async let (loaded, usesOptionalType) = try await loadCurrentVersion(
+      semvar: semvar,
+      gitDirectory: gitDirectory,
+      url: url
+    )
+    async let next = try await loadNextVersion(semvar: semvar, projectDirectory: gitDirectory)
+
+    return try await .init(
+      targetUrl: url,
+      usesOptionalType: usesOptionalType,
+      loadedVersion: loaded,
+      precedence: semvar.precedence,
+      strategyVersion: next
+    )
+  }
+
+  static func loadCurrentVersion(
+    semvar: Configuration.SemVar,
+    gitDirectory: String?,
+    url: URL
+  ) async throws -> (SemVar?, Bool) {
+    @Dependency(\.fileClient) var fileClient
+    @Dependency(\.logger) var logger
+
+    logger.trace("Begin loading current version from: \(url.cleanFilePath)")
+
+    let loadedOptional = try await fileClient.semvar(
+      file: url,
+      gitDirectory: gitDirectory,
+      requireExistingFile: semvar.requireExistingFile ?? false
+    )
+    guard let loadedStrong = loadedOptional else {
+      if semvar.requireExistingFile ?? false {
+        throw CliClientError.semVarNotFound(message: "Required by configuration's 'requireExistingFile' variable.")
+      }
+      return (nil, true)
+    }
+
+    let (loaded, usesOptionalType) = loadedStrong
+
+    logger.dump(loaded) { "Loaded version:\n\($0)" }
+    return (loaded, usesOptionalType)
+  }
+
+  static func loadNextVersion(semvar: Configuration.SemVar, projectDirectory: String?) async throws -> SemVar? {
+    @Dependency(\.logger) var logger
+    let next = try await SemVar.nextVersion(
+      configuration: semvar,
+      projectDirectory: projectDirectory
+    )
+    logger.dump(next) { "Next version:\n\($0)" }
+    return next
+  }
+
+  func versionString(withPreRelease: Bool) -> String? {
+    let version: SemVar?
+
+    switch precedence ?? .default {
+    case .file:
+      version = loadedVersion ?? strategyVersion
+    case .strategy:
+      version = strategyVersion ?? loadedVersion
+    }
+
+    return version?.versionString(withPreReleaseTag: withPreRelease)
+  }
+
+  // TODO: Move to where `bump` is declared and make fileprivate.
+  func withUpdateNextVersion(_ next: SemVar) -> Self {
+    .init(
+      targetUrl: targetUrl,
+      usesOptionalType: usesOptionalType,
+      loadedVersion: loadedVersion,
+      precedence: .strategy, // make sure to use the next version, since it was specified, as this is called from `bump`.
+      strategyVersion: next
+    )
+  }
+}

Sources/ConfigurationClient/Configuration.swift

@@ -251,6 +251,8 @@ public extension Configuration {
 
     public let allowPreRelease: Bool?
 
+    public let precedence: Precedence?
+
     /// Optional pre-releas suffix strategy.
     public let preRelease: PreRelease?
 
@@ -264,12 +266,14 @@ public extension Configuration {
 
     public init(
       allowPreRelease: Bool? = true,
+      precedence: Precedence? = .default,
       preRelease: PreRelease? = nil,
       requireExistingFile: Bool? = false,
       requireExistingSemVar: Bool? = false,
       strategy: Strategy? = nil
     ) {
       self.allowPreRelease = allowPreRelease
+      self.precedence = precedence
       self.preRelease = preRelease
       self.requireExistingFile = requireExistingFile
       self.requireExistingSemVar = requireExistingSemVar
@@ -281,6 +285,13 @@ public extension Configuration {
       case gitTag(exactMatch: Bool? = false)
     }
 
+    public enum Precedence: String, Codable, Equatable, Sendable {
+      case file
+      case strategy
+
+      public static var `default`: Self { .file }
+    }
+
   }
 
 }

Sources/LoggingExtensions/LoggingOptions.swift

@@ -1,4 +1,6 @@
+import CustomDump
 import Dependencies
+import Logging
 import ShellClient
 
 public struct LoggingOptions: Equatable, Sendable {
@@ -26,3 +28,15 @@ public struct LoggingOptions: Equatable, Sendable {
     }
   }
 }
+
+public extension Logger {
+  func dump<T>(
+    _ type: T,
+    level: Level = .trace,
+    buildMessage: @escaping (String) -> String = { $0 }
+  ) {
+    var message = ""
+    customDump(type, to: &message)
+    log(level: level, "\(buildMessage(message))")
+  }
+}

Tests/CliVersionTests/CliClientTests.swift

@@ -15,8 +15,10 @@ struct CliClientTests {
     arguments: TestArguments.testCases
   )
   func testBuild(target: String) async throws {
+    let template = Template.build("1.0.0")
     try await run {
       $0.fileClient.fileExists = { _ in true }
+      $0.fileClient.read = { @Sendable _ in template }
     } operation: {
       @Dependency(\.cliClient) var client
       let output = try await client.build(.testOptions(

gum

@@ -0,0 +1 @@
+foo,bar,baz table