Update to sync source

Author: Kyle-Ye

Package.swift

@@ -3,42 +3,69 @@
 import Foundation
 import PackageDescription
 
+/* GENERATED BY SPMManifestTool BEGIN */
+/* DO NOT EDIT */
+
+public protocol EnvironmentProvider {
+    func value(forKey key: String) -> String?
+}
+
+import PackageDescription
+public struct PackageContextEnvironmentProvider: EnvironmentProvider {
+    public init() {}
+
+    public func value(forKey key: String) -> String? {
+        Context.environment[key]
+    }
+}
+
 // MARK: - Env Manager
 
-@MainActor
-final class EnvManager {
-    static let shared = EnvManager()
+public final class EnvManager {
+    nonisolated(unsafe) public static let shared = EnvManager()
 
     private var domains: [String] = []
+    private var environmentProvider: EnvironmentProvider
+
+    /// When true, append raw key as fallback when searching in domains
+    public var includeFallbackToRawKey: Bool = false
 
-    func register(domain: String) {
+    private init() {
+        self.environmentProvider = PackageContextEnvironmentProvider()
+    }
+
+    /// Set a custom environment provider (useful for testing)
+    public func setEnvironmentProvider(_ provider: EnvironmentProvider) {
+        self.environmentProvider = provider
+    }
+
+    /// Reset domains and environment provider (useful for testing)
+    public func reset() {
+        domains.removeAll()
+        includeFallbackToRawKey = false
+        self.environmentProvider = PackageContextEnvironmentProvider()
+    }
+
+    public func register(domain: String) {
         domains.append(domain)
     }
 
-    func withDomain<T>(_ domain: String, perform: () throws -> T) rethrows -> T {
+    public func withDomain<T>(_ domain: String, perform: () throws -> T) rethrows -> T {
         domains.append(domain)
         defer { domains.removeAll { $0 == domain } }
         return try perform()
     }
 
-    private func envValue<T>(
-        rawKey: String,
-        default defaultValue: T?,
-        searchInDomain: Bool,
-        parser: (String) -> T?
-    ) -> T? {
+    private func envValue<T>(rawKey: String, default defaultValue: T?, searchInDomain: Bool, parser: (String) -> T?) -> T? {
         func parseEnvValue(_ key: String) -> (String, T)? {
-            guard let value = Context.environment[key] else {
-                return nil
-            }
-            guard let result = parser(value) else {
-                return nil
-            }
+            guard let value = environmentProvider.value(forKey: key),
+                  let result = parser(value) else { return nil }
             return (value, result)
         }
-        let keys: [String] = searchInDomain
-            ? domains.map { "\($0.uppercased())_\(rawKey)" }
-            : [rawKey]
+        var keys: [String] = searchInDomain ? domains.map { "\($0.uppercased())_\(rawKey)" } : []
+        if !searchInDomain || includeFallbackToRawKey {
+            keys.append(rawKey)
+        }
         for key in keys {
             if let (value, result) = parseEnvValue(key) {
                 print("[Env] \(key)=\(value) -> \(result)")
@@ -52,7 +79,7 @@ final class EnvManager {
         return defaultValue
     }
 
-    func envBoolValue(rawKey: String, default defaultValue: Bool? = nil, searchInDomain: Bool) -> Bool? {
+    public func envBoolValue(rawKey: String, default defaultValue: Bool? = nil, searchInDomain: Bool) -> Bool? {
         envValue(rawKey: rawKey, default: defaultValue, searchInDomain: searchInDomain) { value in
             switch value {
             case "1": true
@@ -62,37 +89,35 @@ final class EnvManager {
         }
     }
 
-    func envIntValue(rawKey: String, default defaultValue: Int? = nil, searchInDomain: Bool) -> Int? {
+    public func envIntValue(rawKey: String, default defaultValue: Int? = nil, searchInDomain: Bool) -> Int? {
         envValue(rawKey: rawKey, default: defaultValue, searchInDomain: searchInDomain) { Int($0) }
     }
 
-    func envStringValue(rawKey: String, default defaultValue: String? = nil, searchInDomain: Bool) -> String? {
+    public func envStringValue(rawKey: String, default defaultValue: String? = nil, searchInDomain: Bool) -> String? {
         envValue(rawKey: rawKey, default: defaultValue, searchInDomain: searchInDomain) { $0 }
     }
 }
-EnvManager.shared.register(domain: "OpenAttributeGraph")
-EnvManager.shared.register(domain: "OpenSwiftUI")
 
-@MainActor
-func envBoolValue(_ key: String, default defaultValue: Bool = false, searchInDomain: Bool = true) -> Bool {
+public func envBoolValue(_ key: String, default defaultValue: Bool = false, searchInDomain: Bool = true) -> Bool {
     EnvManager.shared.envBoolValue(rawKey: key, default: defaultValue, searchInDomain: searchInDomain)!
 }
 
-@MainActor
-func envIntValue(_ key: String, default defaultValue: Int = 0, searchInDomain: Bool = true) -> Int {
+public func envIntValue(_ key: String, default defaultValue: Int = 0, searchInDomain: Bool = true) -> Int {
     EnvManager.shared.envIntValue(rawKey: key, default: defaultValue, searchInDomain: searchInDomain)!
 }
 
-@MainActor
-func envStringValue(_ key: String, default defaultValue: String, searchInDomain: Bool = true) -> String {
+public func envStringValue(_ key: String, default defaultValue: String, searchInDomain: Bool = true) -> String {
     EnvManager.shared.envStringValue(rawKey: key, default: defaultValue, searchInDomain: searchInDomain)!
 }
 
-@MainActor
-func envStringValue(_ key: String, searchInDomain: Bool = true) -> String? {
+public func envStringValue(_ key: String, searchInDomain: Bool = true) -> String? {
     EnvManager.shared.envStringValue(rawKey: key, searchInDomain: searchInDomain)
 }
 
+/* GENERATED BY SPMManifestTool END */
+EnvManager.shared.register(domain: "OpenAttributeGraph")
+EnvManager.shared.register(domain: "OpenSwiftUI")
+
 // MARK: - Env and config
 
 #if os(macOS)