Add parameter switches for individual OS build and sign jobs (#602)

* Added parameter switches for individual OS build and sign jobs

* Disable MacOS Build by default, can be enabled with parameter

pipelines/release-pipeline.yml

@@ -37,6 +37,18 @@ parameters:
   - 'macOS-10.15'
   - 'macOS-11'
   - 'macOS-latest'
+- name: build_win
+  displayName: 'Build a Windows release'
+  type: boolean
+  default: true
+- name: build_mac
+  displayName: 'Build a MacOS Release'
+  type: boolean
+  default: false # Currently not building for Mac, so default is false
+- name: build_linux
+  displayName: 'Build a Linux Release'
+  type: boolean
+  default: true
 - name: release
   displayName: 'Publish Release'
   type: boolean
@@ -74,6 +86,7 @@ stages:
     jobs:
     - job: packageWindows
       displayName: "Package for Windows"
+      condition: ${{ parameters.build_win }}
       pool:
         name: $[variables.${{ parameters.buildAgentPoolVar }}]
         vmImage: $(winVmImage)
@@ -103,6 +116,7 @@ stages:
 
     - job: packageMac
       displayName: "Package for MacOS"
+      condition: ${{ parameters.build_mac }}
 
       pool:
         vmImage: ${{ parameters.macBuildImage }}
@@ -130,6 +144,7 @@ stages:
 
     - job: packageLinux
       displayName: "Package for Linux"
+      condition: ${{ parameters.build_linux }}
       pool:
         name: $[variables.${{ parameters.buildAgentPoolVar }}]
         vmImage: $(linuxVmImage)
@@ -167,6 +182,7 @@ stages:
 
     - job: signWindows
       displayName: 'Windows'
+      condition: ${{ parameters.build_win }}
       steps:
       - download: current
         artifact: Windows
@@ -221,6 +237,7 @@ stages:
         
     - job: signMac
       displayName: 'MacOS'
+      condition: ${{ parameters.build_mac }}
       steps:
       - download: current
         artifact: Mac
@@ -285,6 +302,7 @@ stages:
 
     - job: signLinux
       displayName: 'Linux'
+      condition: ${{ parameters.build_linux }}
       steps:
       - download: current
         artifact: Linux