Work on release process.

.github/workflows/build_docker.yml

@@ -5,7 +5,8 @@ on:
     branches:
       - 'master'
     tags:
-      - '*.*.*'
+      - '[0-9]+.[0-9]+.[0-9]+'
+      - '[0-9]+.[0-9]+.[0-9]+RC[0-9]+'
 
 jobs:
   docker:

.github/workflows/build_snap.yml

@@ -5,7 +5,8 @@ on:
     branches:
       - 'master'
     tags:
-      - '*.*.*'
+      - '[0-9]+.[0-9]+.[0-9]+'
+      - '[0-9]+.[0-9]+.[0-9]+RC[0-9]+'
 
 jobs:
   build-and-release:

scripts/release.sh

@@ -64,6 +64,12 @@ fi
 
 RC_VERSION="$MAJOR.$MINOR.$PATCH-RC$RC"
 
+if [ git tag "$RC_VERSION" | grep -q "$RC_VERSION" ]
+then
+    echo "Oups! The tag $RC_VERSION already exists! Please remove it!"
+    exit 0
+fi
+
 MESSAGE="Version $RC_VERSION $(date +'%Y-%m-%d')"
 
 echo