build: send version string on requests to CipherStash Cloud

Author: auxesis

mise.toml

@@ -552,6 +552,14 @@ if [[ "{{option(name="target", default=default_target)}}" =~ "linux" ]]; then
 fi
 {% endif %}
 
+# set a user agent
+if [[ -n "${GITHUB_REF_NAME}" ]]; then
+  export BUILD_VERSION="${GITHUB_REF_NAME}"
+else
+  export BUILD_VERSION="$(git rev-parse HEAD)$(git diff-index --quiet HEAD -- || echo '+untracked')"
+fi
+export CIPHERSTASH_CLIENT_SECONDARY_USER_AGENT="cipherstash-proxy/${BUILD_VERSION}"
+
 # cross-compile
 rustup update
 rustup target add --toolchain stable {{ target }}