revert back to use set-output command

Author: alirezanet

index.js

@@ -43,8 +43,7 @@ class Action {
         this._executeInProcess(`git tag ${TAG}`)
         this._executeInProcess(`git push origin ${TAG}`)
 
-        process.stdout.write(`VERSION=${TAG}` + os.EOL)
-
+        process.stdout.write(`::set-output name=VERSION::${TAG}` + os.EOL)
     }
 
     _pushPackage(version, name) {
@@ -79,12 +78,12 @@ class Action {
         const packageFilename = packages.filter(p => p.endsWith(".nupkg"))[0],
             symbolsFilename = packages.filter(p => p.endsWith(".snupkg"))[0]
 
-        process.stdout.write(`PACKAGE_NAME=${packageFilename}` + os.EOL)
-        process.stdout.write(`PACKAGE_PATH=${path.resolve(packageFilename)}` + os.EOL)
+        process.stdout.write(`::set-output name=PACKAGE_NAME::${packageFilename}` + os.EOL)
+        process.stdout.write(`::set-output name=PACKAGE_PATH::${path.resolve(packageFilename)}` + os.EOL)
 
         if (symbolsFilename) {
-            process.stdout.write(`SYMBOLS_PACKAGE_NAME=${symbolsFilename}` + os.EOL)
-            process.stdout.write(`SYMBOLS_PACKAGE_PATH=${path.resolve(symbolsFilename)}` + os.EOL)
+            process.stdout.write(`::set-output name=SYMBOLS_PACKAGE_NAME::${symbolsFilename}` + os.EOL)
+            process.stdout.write(`::set-output name=SYMBOLS_PACKAGE_PATH::${path.resolve(symbolsFilename)}` + os.EOL)
         }
 
         if (this.tagCommit)
@@ -107,7 +106,7 @@ class Action {
                 console.log('404 response, assuming new package')
                 this._pushPackage(this.version, this.packageName)
             }
-
+                
 
             if (res.statusCode == 200) {
                 res.setEncoding("utf8")