generate mta from package.json and given applicationName

documentation/docs/steps/mtaBuild.md

@@ -14,16 +14,19 @@ Executes the SAP MTA Archive Builder to create an mtar archive of the applicatio
 | `script`         | yes       |                                                        |                    |
 | `buildTarget`    | yes       | `'NEO'`                                                | 'CF', 'NEO', 'XSA' |
 | `mtaJarLocation` | no        |                                                        |                    |
+| `applicationName`| no        |                                                        |                    |
 
 * `script` - The common script environment of the Jenkinsfile running. Typically the reference to the script calling the pipeline step is provided with the `this` parameter, as in `script: this`. This allows the function to access the [`commonPipelineEnvironment`](commonPipelineEnvironment.md) for retrieving, for example, configuration parameters.
 * `buildTarget` - The target platform to which the mtar can be deployed.
 * `mtaJarLocation` - The path of the `mta.jar` file. If no parameter is provided, neither at the level of the method call nor via step configuration, the path is retrieved from the Jenkins environment variables using `env.MTA_JAR_LOCATION`. If the Jenkins environment variable is not set it is assumed that `mta.jar` is located in the current working directory.
+* `applicationName` - The name of the application which is being built. If the parameter has been provided and no `mta.yaml` exists, the `mta.yaml` will be automatically generated using this parameter and the information (`name` and `version`) from `package.json` before the actual build starts.
 
 ## Step configuration
 The following parameters can also be specified as step parameters using the global configuration file:
 
 * `buildTarget`
 * `mtaJarLocation`
+* `applicationName`
 
 ## Return value
 The file name of the resulting archive is returned with this step. The file name is extracted from the key `ID` defined in `mta.yaml`.
@@ -43,3 +46,4 @@ dir('/path/to/FioriApp'){
   mtarFileName = mtaBuild script:this, buildTarget: 'NEO'
 }
 ```
+