Revert "Build snap based on branch instead of tag"

This reverts commit 2e5dd05a6c.

.github/workflows/publish-snap.yml

@@ -3,7 +3,7 @@ name: Publish Snap
 on:
   push:
     branches: [master, beta, nightly]
-    #tags: [v*]
+    tags: [v*]
     pull_request: ~
 
 jobs:
@@ -28,10 +28,10 @@ jobs:
         id: prepare
         run: |
           git fetch --prune --unshallow --tags
-          if [[ $GITHUB_REF == refs/heads/master ]]; then
-            echo ::set-output name=RELEASE::stable
-          elif [[ $GITHUB_REF == refs/heads/beta ]]; then
+          if [[ $GITHUB_REF == refs/tags/*-beta || $GITHUB_REF == refs/heads/beta ]]; then
             echo ::set-output name=RELEASE::beta
+          elif [[ $GITHUB_REF == refs/tags/* || $GITHUB_REF == refs/heads/master ]]; then
+            echo ::set-output name=RELEASE::stable
           else
             echo ::set-output name=RELEASE::edge
           fi
@@ -58,7 +58,9 @@ jobs:
 
       - name: Publish Snap Package
         uses: snapcore/action-publish@v1
-        if: github.event_name != 'pull_request'
+        if: >
+          github.event_name != 'pull_request' &&
+          (startsWith(github.ref, 'refs/tags/') || github.ref == 'refs/heads/nightly')
         with:
           store_login: ${{ secrets.SNAP_LOGIN }}
           snap: ${{ steps.build.outputs.snap }}

snap/snapcraft.yaml

@@ -37,6 +37,11 @@ parts:
       else
         GRADE=stable
       fi
+      if [ "$VERSION" = "$TAG" ] && [ ! "$VERSION" = "${VERSION%-beta}" ]; then
+        BRANCH=beta
+      elif [ "$VERSION" = "$TAG" ]; then
+        BRANCH=master
+      fi
       echo $BRANCH > branch.txt
       echo $COMMIT > version.txt
       snapcraftctl set-version "$VERSION"