feat: Initial commit

Sources/CliClient/Helpers.swift

@@ -0,0 +1,73 @@
+import Dependencies
+import Foundation
+import ShellClient
+
+@_spi(Internal)
+public func findConfigurationFiles(
+  env: [String: String] = ProcessInfo.processInfo.environment
+) throws -> [URL] {
+  @Dependency(\.logger) var logger
+  @Dependency(\.fileClient) var fileClient
+
+  logger.debug("Begin find configuration files.")
+  logger.trace("Env: \(env)")
+
+  let homeDir = fileClient.homeDir()
+  var url = homeDir.appending(path: ".hparc")
+
+  if fileClient.isReadable(url) {
+    logger.debug("Found configuration in home directory")
+    return [url]
+  }
+
+  if let configHome = env["HPA_CONFIG_HOME"] {
+    url = .init(filePath: configHome)
+
+    if fileClient.isDirectory(url) {
+      logger.debug("Found configuration directory from hpa config home env var.")
+      return try fileClient.contentsOfDirectory(url)
+    }
+    if fileClient.isReadable(url) {
+      logger.debug("Found configuration from hpa config home env var.")
+      return [url]
+    }
+  }
+
+  if let pwd = env["PWD"] {
+    url = .init(filePath: "\(pwd)").appending(path: ".hparc")
+    if fileClient.isReadable(url) {
+      logger.debug("Found configuration in current working directory.")
+      return [url]
+    }
+  }
+
+  if let xdgConfigHome = env["XDG_CONFIG_HOME"] {
+    logger.debug("XDG Config Home: \(xdgConfigHome)")
+
+    url = .init(filePath: "\(xdgConfigHome)")
+      .appending(path: "hpa-playbook")
+
+    logger.debug("XDG Config url: \(url.absoluteString)")
+
+    if fileClient.isDirectory(url) {
+      logger.debug("Found configuration in xdg config home.")
+      return try fileClient.contentsOfDirectory(url)
+    }
+
+    if fileClient.isReadable(url) {
+      logger.debug("Not directory, but readable.")
+      return [url]
+    }
+  }
+
+  // We could not find configuration in any usual places.
+  throw ConfigurationError.configurationNotFound
+}
+
+func path(for url: URL) -> String {
+  url.absoluteString.replacing("file://", with: "")
+}
+
+enum ConfigurationError: Error {
+  case configurationNotFound
+}