snap: Properly fetch and get tags

Also fall back if there's no tag

Signed-off-by: Daniel Schaefer <dhs@frame.work>

Author: JohnAZoidberg

.github/workflows/package.yml

@@ -74,6 +74,8 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v6
+      with:
+        fetch-depth: 0
 
     - name: Build snap
       uses: snapcore/action-build@v1

snap/snapcraft.yaml

@@ -35,9 +35,9 @@ parts:
     override-pull: |
       craftctl default
       VERSION=$(craftctl get version)
-      if [ -z $VERSION ]; then
-        VERSION=$(git describe --tags --abbrev=10)
-        craftctl set version=$VERSION
+      if [ -z "$VERSION" ]; then
+        VERSION=$(git describe --tags --abbrev=10 2>/dev/null || echo "0.0.0+git$(git rev-parse --short=10 HEAD)")
+        craftctl set version="$VERSION"
       fi
     override-build: |
       cd "${CRAFT_PART_SRC}"