Make various improvements geared towards Gradle/CLI

AWS protocol tests:
- Use the Gradle plugin to build the AWS protocol tests.

SmithyBuild:
- Only run parallel projections if there's more than one.

SmithyCli (breaking CLI changes):
- to allow the writing to stderr and stdout to be completely customized
  using a Consumer<String>. This allows the Gradle plugin to log writes
  to stdout rather than rely on the non-thread-safe default behavior of
  intercepting calls.
- Colors nows is used by calling out and err directly on an enum variant
  rather than a static method.
- Adding the --logging parameter to every command and removed the static
  `configureLogging` method.
- Adding `stdout` and `stderr` methods to the Cli. These are now called
  by Colors when writing.
- Enabling disabling ANSI colors is done on Cli and not on Colors now.
  All of the methods used to influence the CLI globally is now all on
  the Cli.
- Logging is only configured when a logging option is passed in. A
  custom logger is used that makes calls to the intercepted stderr
  method.
- Running `build` now shows validation results too.

SmithyModel:
- ValidationEvents are now sorted by filename, line number, column,
  severity, shape ID, message, then finally the event ID.
- Introducing the ValidationEventFormatter interface. There are
  now implementations of the current display (showing the event on
  a single line like CheckStyle), and a contextual formatter that
  shows the line of the source file that has the error.

README.md

@@ -57,8 +57,7 @@ Then, apply the Smithy Gradle Plugin in your `build.gradle.kts` file and run
 
 ```kotlin
 plugins {
-   java
-   id("software.amazon.smithy").version("0.4.2")
+   id("software.amazon.smithy").version("0.4.3")
 }
 ```
 

docs/source/guides/building-models/gradle-plugin.rst

@@ -21,7 +21,7 @@ The following example configures a project to use the Smithy Gradle plugin:
     .. code-tab:: kotlin
 
         plugins {
-            id("software.amazon.smithy").version("0.4.2")
+            id("software.amazon.smithy").version("0.4.3")
         }
 
 
@@ -138,7 +138,7 @@ The following example ``build.gradle.kts`` will build a Smithy model using a
     .. code-tab:: kotlin
 
         plugins {
-            id("software.amazon.smithy").version("0.4.2")
+            id("software.amazon.smithy").version("0.4.3")
         }
 
         // The SmithyExtension is used to customize the build. This example
@@ -184,7 +184,7 @@ build that uses the "external" projection.
     .. code-tab:: kotlin
 
         plugins {
-            id("software.amazon.smithy").version("0.4.2")
+            id("software.amazon.smithy").version("0.4.3")
         }
 
         buildscript {

docs/source/guides/converting-to-openapi.rst

@@ -101,7 +101,7 @@ specification from a Smithy model using a buildscript dependency:
 
     plugins {
         java
-        id("software.amazon.smithy").version("0.4.2")
+        id("software.amazon.smithy").version("0.4.3")
     }
 
     buildscript {

smithy-aws-protocol-tests/build.gradle.kts

@@ -17,7 +17,12 @@ description = "Defines protocol tests for AWS HTTP protocols."
 extra["displayName"] = "Smithy :: AWS :: Protocol Tests"
 extra["moduleName"] = "software.amazon.smithy.aws.protocoltests"
 
+plugins {
+    id("software.amazon.smithy").version("0.4.3")
+}
+
 dependencies {
-    api(project(":smithy-protocol-test-traits"))
-    api(project(":smithy-aws-traits"))
+    compile(project(":smithy-cli"))
+    implementation(project(":smithy-protocol-test-traits"))
+    implementation(project(":smithy-aws-traits"))
 }

smithy-build/src/main/java/software/amazon/smithy/build/SmithyBuildImpl.java

@@ -189,14 +189,25 @@ void applyAllProjections(
             } else {
                 parallelProjectionNameOrder.add(name);
                 parallelProjections.add(() -> {
-                    ProjectionResult projectionResult = applyProjection(name, config, resolvedModel);
-                    projectionResultConsumer.accept(projectionResult);
+                    executeSerialProjection(resolvedModel, name, config,
+                                            projectionResultConsumer, projectionExceptionConsumer);
                     return null;
                 });
             }
         }
 
-        if (!parallelProjections.isEmpty()) {
+        // Common case of only executing a single plugin per/projection.
+        if (parallelProjections.size() == 1) {
+            try {
+                parallelProjections.get(0).call();
+            } catch (Throwable e) {
+                if (e instanceof RuntimeException) {
+                    throw (RuntimeException) e;
+                } else {
+                    throw new RuntimeException(e);
+                }
+            }
+        } else if (!parallelProjections.isEmpty()) {
             executeParallelProjections(parallelProjections, parallelProjectionNameOrder, projectionExceptionConsumer);
         }
     }