Setting build version (#892)

* Adding daily build yml file

* Setting commit SHA to be 7 digits

* Setting build version

Author: munozemilio

build/botframework-cli-daily.yml

@@ -20,8 +20,9 @@ jobs:
 
     steps:
     - script: |
-        set shortSHA= %commitNumber:~0,7%
-        set buildVersion: '4.10.0-dev.$(shortSHA)'
+        short_hash=`git rev-parse --short=7 HEAD`  ## At least 7 digits, more if needed for uniqueness
+        buildVersion: '4.10.0-dev.$(shortSHA)'
+        echo "##vso[task.setvariable variable=buildVersion]$buildVersion"  ## Store variable for subsequent steps
       displayName: 'Set Build Version'
 
     - task: colinsalmcorner.colinsalmcorner-buildtasks.tag-build-task.tagBuildOrRelease@0