[Go] #3084: remove timestamps from go server (#5218)

* Issue #3084: add hideGenerationTimestamp option to Go server generator.

* Issue #3084: use hideGenerationTimestamp in go server sample script.

* Update Go server samples.

bin/go-petstore-server.sh

@@ -26,6 +26,6 @@ fi
 
 # if you've executed sbt assembly previously it will use that instead.
 export JAVA_OPTS="${JAVA_OPTS} -XX:MaxPermSize=256M -Xmx1024M -DloggerPath=conf/log4j.properties"
-ags="$@ generate -i modules/swagger-codegen/src/test/resources/2_0/petstore.yaml -l go-server -o samples/server/petstore/go-api-server -DpackageName=petstoreserver "
+ags="$@ generate -i modules/swagger-codegen/src/test/resources/2_0/petstore.yaml -l go-server -o samples/server/petstore/go-api-server -DpackageName=petstoreserver --additional-properties hideGenerationTimestamp=true "
 
 java $JAVA_OPTS -Dservice -jar $executable $ags

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/GoServerCodegen.java

@@ -126,6 +126,9 @@ public class GoServerCodegen extends DefaultCodegen implements CodegenConfig {
         cliOptions.clear();
         cliOptions.add(new CliOption(CodegenConstants.PACKAGE_NAME, "Go package name (convention: lowercase).")
                 .defaultValue("swagger"));
+        cliOptions.add(new CliOption(CodegenConstants.HIDE_GENERATION_TIMESTAMP, "hides the timestamp when files were generated")
+                .defaultValue(Boolean.TRUE.toString()));
+
         /*
          * Additional Properties.  These values can be passed to the templates and
          * are available in models, apis, and supporting files

modules/swagger-codegen/src/main/resources/go-server/README.mustache

@@ -14,8 +14,8 @@ To see how to make this your own, look here:
 
 [README](https://github.com/swagger-api/swagger-codegen/blob/master/README.md)
 
-- API version: {{appVersion}}
-- Build date: {{generatedDate}}
+- API version: {{appVersion}}{{^hideGenerationTimestamp}}
+- Build date: {{generatedDate}}{{/hideGenerationTimestamp}}
 {{#infoUrl}}
 For more information, please visit [{{{infoUrl}}}]({{{infoUrl}}})
 {{/infoUrl}}

samples/server/petstore/go-api-server/go/README.md

@@ -13,7 +13,6 @@ To see how to make this your own, look here:
 [README](https://github.com/swagger-api/swagger-codegen/blob/master/README.md)
 
 - API version: 1.0.0
-- Build date: 2017-03-02T21:08:51.368+01:00
 
 
 ### Running the server

samples/server/petstore/go-api-server/go/routers.go

@@ -184,4 +184,4 @@ var routes = Routes{
 		UpdateUser,
 	},
 
-}
+}