feat: silent flag parameter

CONTRIBUTING.md

@@ -11,6 +11,7 @@ We encourage the developer community to contribute to this repository. This guid
 
 - [Node](https://nodejs.org/) >= 14
 - [yarn](https://yarnpkg.com/) >= 1.22.5
+- [Code Climate](https://github.com/codeclimate/codeclimate) (If you are on MacOS, you will need Xcode Command Line Tools)
 
 ## Installation
 

README.md

@@ -129,16 +129,16 @@ If you run your CI/CD jobs inside a Docker image, you can add the plugin to your
 ## How to use it?
 
 <!-- commands -->
-* [`sfdx sgd:source:delta -f <string> [-t <string>] [-r <filepath>] [-i <filepath>] [-D <filepath>] [-s <filepath>] [-W] [-o <filepath>] [-a <number>] [-d] [-n <filepath>] [-N <filepath>] [--json] [--loglevel trace|debug|info|warn|error|fatal|TRACE|DEBUG|INFO|WARN|ERROR|FATAL]`](#sfdx-sgdsourcedelta--f-string--t-string--r-filepath--i-filepath--d-filepath--s-filepath--w--o-filepath--a-number--d--n-filepath--n-filepath---json---loglevel-tracedebuginfowarnerrorfataltracedebuginfowarnerrorfatal)
+* [`sfdx sgd:source:delta -f <string> [-t <string>] [-r <filepath>] [-i <filepath>] [-D <filepath>] [-s <filepath>] [-W] [-o <filepath>] [-a <number>] [-d] [-n <filepath>] [-N <filepath>] [-S] [--json] [--loglevel trace|debug|info|warn|error|fatal|TRACE|DEBUG|INFO|WARN|ERROR|FATAL]`](#sfdx-sgdsourcedelta--f-string--t-string--r-filepath--i-filepath--d-filepath--s-filepath--w--o-filepath--a-number--d--n-filepath--n-filepath--s---json---loglevel-tracedebuginfowarnerrorfataltracedebuginfowarnerrorfatal)
 
-## `sfdx sgd:source:delta -f <string> [-t <string>] [-r <filepath>] [-i <filepath>] [-D <filepath>] [-s <filepath>] [-W] [-o <filepath>] [-a <number>] [-d] [-n <filepath>] [-N <filepath>] [--json] [--loglevel trace|debug|info|warn|error|fatal|TRACE|DEBUG|INFO|WARN|ERROR|FATAL]`
+## `sfdx sgd:source:delta -f <string> [-t <string>] [-r <filepath>] [-i <filepath>] [-D <filepath>] [-s <filepath>] [-W] [-o <filepath>] [-a <number>] [-d] [-n <filepath>] [-N <filepath>] [-S] [--json] [--loglevel trace|debug|info|warn|error|fatal|TRACE|DEBUG|INFO|WARN|ERROR|FATAL]`
 
 Generate the sfdx content in source format and destructive change from two git commits
 
 ```
 USAGE
   $ sfdx sgd:source:delta -f <string> [-t <string>] [-r <filepath>] [-i <filepath>] [-D <filepath>] [-s <filepath>] [-W]
-   [-o <filepath>] [-a <number>] [-d] [-n <filepath>] [-N <filepath>] [--json] [--loglevel 
+   [-o <filepath>] [-a <number>] [-d] [-n <filepath>] [-N <filepath>] [-S] [--json] [--loglevel 
   trace|debug|info|warn|error|fatal|TRACE|DEBUG|INFO|WARN|ERROR|FATAL]
 
 OPTIONS
@@ -148,6 +148,9 @@ OPTIONS
   -N, --include-destructive=include-destructive                                     file listing paths to explicitly
                                                                                     include for any destructive actions
 
+  -S, --silent                                                                      no output if the command executed
+                                                                                    successfully, default to false.
+
   -W, --ignore-whitespace                                                           ignore git diff whitespace (space,
                                                                                     tab, eol) changes
 

messages/delta.js

@@ -17,4 +17,5 @@ module.exports = {
   includeFlag: 'file listing paths to explicitly include for any diff actions',
   includeDestructiveFlag:
     'file listing paths to explicitly include for any destructive actions',
+  silentFlag: 'no output if the command executed successfully, default to false.'
 }

src/commands/sgd/source/delta.ts

@@ -74,6 +74,10 @@ export default class SourceDeltaGenerate extends SfdxCommand {
       char: 'N',
       description: messages.getMessage('includeDestructiveFlag'),
     }),
+    'silent': flags.boolean({
+      char: 'S',
+      description: messages.getMessage('silentFlag'),
+    }),
   }
 
   public async run(): Promise<AnyJson> {
@@ -104,7 +108,9 @@ export default class SourceDeltaGenerate extends SfdxCommand {
       output.error = err.message
       process.exitCode = 1
     }
-    this.ux.log(JSON.stringify(output, null, 2))
+    if(output.success && !this.flags.silent){
+      this.ux.log(JSON.stringify(output, null, 2))
+    }
     return null
   }
 }