Merge pull request #1642 from Darleev/v-danurg/vsmac_latest_implementation

macOS: VSMAC update tools with latest flag.

images/macos/provision/core/vsmac.sh

@@ -3,6 +3,9 @@ source ~/utils/utils.sh
 source ~/utils/xamarin-utils.sh
 
 VSMAC_VERSION=$(get_toolset_value '.xamarin.vsmac')
+if [ $VSMAC_VERSION == "latest" ]; then
+    VSMAC_VERSION=$(curl https://formulae.brew.sh/api/cask/visual-studio.json 2>/dev/null | jq .version | tr -d \")
+fi
 VSMAC_DOWNLOAD_URL=$(buildVSMacDownloadUrl $VSMAC_VERSION)
 
 TMPMOUNT=`/usr/bin/mktemp -d /tmp/visualstudio.XXXX`

images/macos/toolsets/toolset-10.15.json

@@ -6,7 +6,7 @@
         ]
     },
     "xamarin": {
-        "vsmac": "8.7.8.4",
+        "vsmac": "latest",
         "mono-versions": [
             "6.12.0.93", "6.10.0.106", "6.8.0.123", "6.6.0.166", "6.4.0.208"
         ],

images/macos/toolsets/toolset-11.0.json

@@ -6,7 +6,7 @@
         ]
     },
     "xamarin": {
-        "vsmac": "8.7.8.4",
+        "vsmac": "latest",
         "mono-versions": [
             "6.12.0.93"
         ],