feat(cmd): add dump version

README.md

@@ -39,7 +39,7 @@ $ podspec-bump -w
 
 Incrementing "major", "minor", or "patch" version; or specify version [default: "patch"]
 
-semver!
+[Semantic Versioning](http://semver.org/ "Semantic Versioning")!
 
 ``` shell
 $ podspec-bump major -w
@@ -55,6 +55,14 @@ You can use `-p` option
 $ podspec-bump -p /path/to/example.podspec
 ```
 
+### Dump version
+
+If you want to know podspec version value, use `--dump-version` option.
+
+```
+$ podspec-bump --dump-version 
+0.1.0
+```
 
 ## Contributing
 

bin/cmd.js

@@ -32,6 +32,12 @@ var optionator = require('optionator')({
             type: 'String',
             description: 'path to podspec',
             example: 'podspec-bump --path /path/to/example.podspec'
+        },
+        {
+            option: 'dump-version',
+            type: 'Boolean',
+            description: 'dump podspec version',
+            example: 'podspec-bump --dump-version'
         }
     ]
 });
@@ -43,7 +49,9 @@ if (options.help) {
 
     function bump(podFilePath) {
         var bumper = new PodspecBumper(podFilePath);
-        if (options.write) {
+        if (options.dumpVersion) {
+            console.log(bumper.getVersion());
+        } else if (options.write) {
             fs.writeFileSync(podFilePath, bumper.bumpVersion(version));
         } else {
             console.log(bumper.bumpVersion(version));