Add EnvironmentClient

Author: finestructure

Sources/App/Core/Dependencies/EnvironmentClient.swift

@@ -0,0 +1,49 @@
+// Copyright Dave Verwer, Sven A. Schmidt, and other contributors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import Dependencies
+import DependenciesMacros
+import Vapor
+
+
+@DependencyClient
+struct EnvironmentClient {
+    // See https://swiftpackageindex.com/pointfreeco/swift-dependencies/main/documentation/dependenciesmacros/dependencyclient()#Restrictions
+    // regarding the use of XCTFail here.
+    var allowBuildTriggers: @Sendable () -> Bool = { XCTFail(#function); return false }
+}
+
+
+extension EnvironmentClient: DependencyKey {
+    static var liveValue: EnvironmentClient {
+        .init(
+            allowBuildTriggers: {
+                Environment.get("ALLOW_BUILD_TRIGGERS").flatMap(\.asBool) ?? Constants.defaultAllowBuildTriggering
+            }
+        )
+    }
+}
+
+
+extension EnvironmentClient: TestDependencyKey {
+    static var testValue: Self { Self() }
+}
+
+
+extension DependencyValues {
+    var environment: EnvironmentClient {
+        get { self[EnvironmentClient.self] }
+        set { self[EnvironmentClient.self] = newValue }
+    }
+}