Update Package.swift

Author: wei18

Package.swift

@@ -4,6 +4,9 @@
 import PackageDescription
 import Foundation
 
+let isBuildingCode = ProcessInfo.processInfo.environment["BUILD_CODE"] == "true"
+let isBuildingDocC = ProcessInfo.processInfo.environment["GITHUB_PAGES"] == "true"
+
 let package = Package(
     name: "GitHubRestAPISwiftOpenAPI",
     platforms: [.macOS(.v10_15)],
@@ -16,6 +19,20 @@ let package = Package(
     + GitHubRestAPIOpenAPITag.allCases.compactMap(\.testTarget)
 )
 
+// dependencies is needed for package users
+if !isBuildingCode {
+    package.targets += [
+        GitHubRestAPIOpenAPITag.dependenciesTarget
+    ]
+}
+
+// swift-docs is not needed for package users
+if isBuildingDocC {
+    package.dependencies += [
+        .package(url: "https://github.com/apple/swift-docc-plugin", from: "1.3.0"),
+    ]
+}
+
 /// The generator supports filtering the OpenAPI document prior to generation,
 /// which can be useful when generating client code for a subset of a large API, 
 /// or splitting an implementation of a server across multiple modules.
@@ -125,21 +142,3 @@ enum GitHubRestAPIOpenAPITag: String, CaseIterable {
     )
 
 }
-
-let isBuildingCode = ProcessInfo.processInfo.environment["BUILD_CODE"] == "true"
-
-// dependencies is needed for package users
-if !isBuildingCode {
-    package.targets += [
-        GitHubRestAPIOpenAPITag.dependenciesTarget
-    ]
-}
-
-let isBuildingDocC = ProcessInfo.processInfo.environment["GITHUB_PAGES"] == "true"
-
-// swift-docs is not needed for package users
-if isBuildingDocC {
-    package.dependencies += [
-        .package(url: "https://github.com/apple/swift-docc-plugin", from: "1.3.0"),
-    ]
-}