snap: set version from tag

Author: DebaA17

snap/snapcraft.yaml

@@ -1,6 +1,6 @@
 name: cvecli
 base: core24
-version: git
+adopt-info: cvecli
 summary: CVE Scanner CLI
 description: |
   A command-line tool to search for CVEs (Common Vulnerabilities and Exposures)
@@ -27,6 +27,15 @@ parts:
     source: .
     python-requirements:
       - requirements.txt
+    override-pull: |
+      craftctl default
+      if [ -n "${GITHUB_REF_NAME:-}" ]; then
+        craftctl set version="${GITHUB_REF_NAME}"
+      elif command -v git >/dev/null 2>&1; then
+        craftctl set version="$(git describe --tags --long --always 2>/dev/null || git rev-parse --short HEAD)"
+      else
+        craftctl set version="0+unknown"
+      fi
     override-build: |
       craftctl default
       install -Dm755 cve_search_cli.py "$CRAFT_PART_INSTALL/bin/cvecli"