snap fixes

Adding github action to promote snap to stable release automatically

.github/workflows/promote_snap.yml

@@ -0,0 +1,26 @@
+name: Promote snap from edge to stable channel
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  initial_sleep:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Sleep for 30 minutes
+      uses: jakejarvis/wait-action@master
+      with:
+        time: '30m'
+  promote:
+    needs: initial_sleep
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - run: git fetch --prune --unshallow
+    - name: Install Snapcraft
+      uses: samuelmeuli/action-snapcraft@v1
+      with:
+        snapcraft_token: ${{ secrets.snapcraft_token }}
+    - name: Run promote script
+      run: bash snap/promote_snap.sh

snap/promote_snap.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+SNAP_NAME="wmbusmeters"
+ARCH_LIST="arm64 armhf amd64"
+
+if [ -n "$(git describe --tags | grep -)" ]; then
+        GIT_REV="$(git describe --tags | cut -f1,2 -d'-')"
+        echo "$GIT_REV is branch not tag release, exiting.."
+        exit 1
+else
+        GIT_VER="$(git describe --tags)"
+        echo "This is release - $GIT_VER"
+fi
+
+for arch in $ARCH_LIST
+do
+        snap_build_version="$(snapcraft status --arch $arch $SNAP_NAME | grep edge | awk '{print $2}')"
+
+        c=0
+        while [[ "$GIT_VER" != "$snap_build_version" && $c -lt 10 ]]; do
+                echo "GIT release version "$GIT_VER" != snap latest edge version at snapcraft for $arch "$snap_build_version", iter : $c";
+                ((c = $c + 1));
+                sleep 300;
+                snap_build_version="$(snapcraft status --arch $arch $SNAP_NAME | grep edge | awk '{print $2}')"
+        done
+
+        if [[ "$GIT_VER" != "$snap_build_version" ]]; then
+                echo "GIT release version "$GIT_VER" != snap latest edge version on snapcraft for $arch "$snap_build_version", exiting..";
+                exit 1
+        fi
+done
+
+for arch in $ARCH_LIST
+do
+        snap_build_id="$(snapcraft status --arch $arch $SNAP_NAME | grep edge | awk '{print $3}')"
+        echo "Snap build id for arch $arch - $snap_build_id, promoting to stable release"
+        snapcraft release $SNAP_NAME $snap_build_id stable
+done

snap/snapcraft.yaml

@@ -35,7 +35,7 @@ parts:
     source-type: git
     override-pull: |
       snapcraftctl pull
-      if [ -n $(git describe --tags | grep -) ]; then
+      if [ -n "$(git describe --tags | grep -)" ]; then
         GIT_REV="$(git describe --tags | cut -f1,2 -d'-')"
         snapcraftctl set-version "$GIT_REV"
         snapcraftctl set-grade devel