simplify dependencies management

Author: sebsto

Examples/SAM/Package.swift

@@ -54,14 +54,6 @@ let package = Package(
       dependencies: [
         "HttpApiLambda", "SQSLambda",
         .product(name: "AWSLambdaTesting", package: "swift-aws-lambda-runtime"),
-
-        // at least one target must have this dependency. It ensures Swift builds the dylib
-        // The dylib is loaded dynamically by the deploy plugin when compiling Deploy.swift.
-        // The Lambda functions or the tests do not actually depend on it.
-        // I choose to add the dependency on a test target, because the archive plugin
-        // links the executable targets with --static-swift-stdlib which cannot include this dynamic library,
-        // and causes the build to fail
-        .product(name: "AWSLambdaDeploymentDescriptor", package: "swift-aws-lambda-runtime")
       ],
       // testing data 
       resources: [

Package.swift

@@ -57,7 +57,7 @@ let package = Package(
         .target(
             name: "AWSLambdaDeploymentDescriptor",
             dependencies: [
-                .product(name: "Yams", package: "Yams")
+                .product(name: "Yams", package: "Yams"),
             ],
             path: "Sources/AWSLambdaDeploymentDescriptor"
         ),
@@ -69,7 +69,10 @@ let package = Package(
                     description: "Deploy the Lambda ZIP created by the archive plugin. Generates SAM-compliant deployment files based on deployment struct passed by the developer and invoke the SAM command."
                 )
 //                permissions: [.writeToPackageDirectory(reason: "This plugin generates a SAM template to describe your deployment")]
-            )
+            ),
+            dependencies: [
+                .byName(name: "AWSLambdaDeploymentDescriptor")
+            ]
         ),
         .testTarget(name: "AWSLambdaRuntimeCoreTests", dependencies: [
             .byName(name: "AWSLambdaRuntimeCore"),

Plugins/AWSLambdaDeployer/README.md

@@ -92,23 +92,7 @@ DeploymentDescriptor {
 }
 ```
 
-3. I add a dependency in my project's `Package.swift`. On a `testTarget`, I add this dependency:
-
-```swift
-  // on the testTarget()
-  dependencies: [
-      // other dependencies 
-      .product(name: "AWSLambdaDeploymentDescriptor", package: "swift-aws-lambda-runtime")
-  ]
-```
-
-I also might add this dependency on one of my Lambda functions `executableTarget`. In this case, I make sure it is added only when building on macOS.
-
-```swift
-  .product(name: "AWSLambdaDeploymentDescriptor", package: "swift-aws-lambda-runtime", condition: .when(platforms: [.macOS]))
-```
-
-4. I invoke the archive plugin and the deploy plugin from the command line.
+3. I invoke the archive plugin and the deploy plugin from the command line.
 
 ```bash
 
@@ -123,7 +107,7 @@ swift package --disable-sandbox deploy
 
 Similarly to the archiver plugin, the deployer plugin must escape the sandbox because the SAM CLI makes network calls to AWS API (IAM and CloudFormation) to validate and to deploy the template.
 
-5. (optionally) Swift lambda function developer may also use SAM to test the code locally.
+4. (optionally) Swift lambda function developer may also use SAM to test the code locally.
 
 ```bash
 sam local invoke -t sam.yaml -e Tests/LambdaTests/data/apiv2.json HttpApiLambda