Mark Silex server generator as deprecated

Created by: ybelenko

Silex package has been abandoned:

This package is abandoned and no longer maintained. The author suggests using the symfony/flex package instead.

WARNING: Silex is in maintenance mode only. Ends of life is set to June 2018. Read more on Symfony's blog.

Closes #6203 (closed)

cc @jebentier @dkarlovi @mandrean @jfastnacht @ackintosh @renepardon

PR checklist

• Read the contribution guidelines.
• If contributing template-only or documentation-only changes which will change sample output, build the project before.
• Run the shell script(s) under ./bin/ (or Windows batch scripts under.\bin\windows) to update Petstore samples related to your fix. This is important, as CI jobs will verify all generator outputs of your HEAD commit, and these must match the expectations made by your contribution. You only need to run ./bin/{LANG}-petstore.sh, ./bin/openapi3/{LANG}-petstore.sh if updating the code or mustache templates for a language ({LANG}) (e.g. php, ruby, python, etc).
• File the PR against the correct branch: master, 4.3.x, 5.0.x. Default: master.
• Copy the technical committee to review the pull request if your PR is targeting a particular programming language.

bin/ci/php-silex-petstore-server.json

 {
-  "generatorName": "php-silex",
+  "generatorName": "php-silex-deprecated",
   "inputSpec": "modules/openapi-generator/src/test/resources/2_0/petstore.yaml",
   "outputDir": "samples/server/petstore/php-silex/OpenAPIServer",
   "templateDir": "modules/openapi-generator/src/main/resources/php-silex"

bin/openapi3/php-silex-petstore-server.sh

@@ -27,6 +27,6 @@ fi
 
 # if you've executed sbt assembly previously it will use that instead.
 export JAVA_OPTS="${JAVA_OPTS} -Xmx1024M -DloggerPath=conf/log4j.properties"
-ags="generate -t modules/openapi-generator/src/main/resources/php-silex -i modules/openapi-generator/src/test/resources/3_0/petstore.yaml -g php-silex -o samples/server/petstore/php-silex/OpenAPIServer $@"
+ags="generate -t modules/openapi-generator/src/main/resources/php-silex -i modules/openapi-generator/src/test/resources/3_0/petstore.yaml -g php-silex-deprecated -o samples/server/petstore/php-silex/OpenAPIServer $@"
 
 java $JAVA_OPTS -jar $executable $ags

bin/windows/php-silex-petstore-server.bat

@@ -5,6 +5,6 @@ If Not Exist %executable% (
 )
 
 REM set JAVA_OPTS=%JAVA_OPTS% -Xmx1024M
-set ags=generate -i modules\openapi-generator\src\test\resources\2_0\petstore.yaml -g php-silex -o samples\server\petstore\php-silex\OpenAPIServer
+set ags=generate -i modules\openapi-generator\src\test\resources\2_0\petstore.yaml -g php-silex-deprecated -o samples\server\petstore\php-silex\OpenAPIServer
 
 java %JAVA_OPTS% -jar %executable% %ags%

bin/php-silex-petstore-server.sh

@@ -27,6 +27,6 @@ fi
 
 # if you've executed sbt assembly previously it will use that instead.
 export JAVA_OPTS="${JAVA_OPTS} -Xmx1024M -DloggerPath=conf/log4j.properties"
-ags="generate -t modules/openapi-generator/src/main/resources/php-silex -i modules/openapi-generator/src/test/resources/2_0/petstore.yaml -g php-silex -o samples/server/petstore/php-silex/OpenAPIServer $@"
+ags="generate -t modules/openapi-generator/src/main/resources/php-silex -i modules/openapi-generator/src/test/resources/2_0/petstore.yaml -g php-silex-deprecated -o samples/server/petstore/php-silex/OpenAPIServer $@"
 
 java $JAVA_OPTS -jar $executable $ags

docs/generators/php-silex-deprecated.md

 ---
-title: Config Options for php-silex
-sidebar_label: php-silex
+title: Config Options for php-silex-deprecated
+sidebar_label: php-silex-deprecated
 ---
 
 | Option | Description | Values | Default |

docs/generators.md

@@ -108,7 +108,7 @@ The following generators are available:
 * [nodejs-server-deprecated (deprecated)](generators/nodejs-server-deprecated.md)  
 * [php-laravel](generators/php-laravel.md)  
 * [php-lumen](generators/php-lumen.md)  
-* [php-silex](generators/php-silex.md)  
+* [php-silex-deprecated (deprecated)](generators/php-silex-deprecated.md)  
 * [php-slim-deprecated (deprecated)](generators/php-slim-deprecated.md)  
 * [php-slim4](generators/php-slim4.md)  
 * [php-symfony](generators/php-symfony.md)  

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpSilexServerCodegen.java

@@ -23,6 +23,8 @@ import org.apache.commons.lang3.StringUtils;
 import org.openapitools.codegen.*;
 import org.openapitools.codegen.meta.features.*;
 import org.openapitools.codegen.utils.ModelUtils;
+import org.openapitools.codegen.meta.GeneratorMetadata;
+import org.openapitools.codegen.meta.Stability;
 
 import java.io.File;
 import java.util.*;
@@ -39,6 +41,10 @@ public class PhpSilexServerCodegen extends DefaultCodegen implements CodegenConf
     public PhpSilexServerCodegen() {
         super();
 
+        generatorMetadata = GeneratorMetadata.newBuilder(generatorMetadata)
+                .stability(Stability.DEPRECATED)
+                .build();
+
         modifyFeatureSet(features -> features
                 .includeDocumentationFeatures(DocumentationFeature.Readme)
                 .wireFormatFeatures(EnumSet.of(WireFormatFeature.JSON, WireFormatFeature.XML))
@@ -136,15 +142,13 @@ public class PhpSilexServerCodegen extends DefaultCodegen implements CodegenConf
     }
 
     @Override
-    public String getName()
-
-    {
-        return "php-silex";
+    public String getName() {
+        return "php-silex-deprecated";
     }
 
     @Override
     public String getHelp() {
-        return "Generates a PHP Silex server library.";
+        return "Generates a PHP Silex server library. IMPORTANT NOTE: this generator is no longer actively maintained.";
     }
 
     @Override