Stamp app version into builds

.gitea/workflows/ci.yml

@@ -107,6 +107,7 @@ jobs:
         shell: bash
         run: |
           set -euo pipefail
+          app_version="$(git describe --tags --always --dirty)"
           # Gio needs a Linux ARM64 cgo cross-toolchain for desktop builds.
           # Keep the CI matrix to targets this runner can build reproducibly.
           for target in \
@@ -126,13 +127,15 @@ jobs:
               ext=".exe"
             fi
             out="${DIST_DIR}/keepassgo-${goos}-${goarch}${ext}"
-            GOOS="${goos}" GOARCH="${goarch}" CGO_ENABLED="${cgo_enabled}" go build -o "${out}" .
+            GOOS="${goos}" GOARCH="${goarch}" CGO_ENABLED="${cgo_enabled}" \
+              go build -ldflags "-X main.appVersion=${app_version}" -o "${out}" .
           done
 
       - name: Build APK
         shell: bash
         run: |
           set -euo pipefail
+          export APP_VERSION="$(git describe --tags --always --dirty)"
           make apk
           cp build/keepassgo.apk "${DIST_DIR}/keepassgo.apk"