Add version in logs and admin space

Cargo.toml

@@ -29,18 +29,17 @@ crate-type = ["cdylib"]
 zenoh_backend_traits = { git = "https://github.com/eclipse-zenoh/zenoh.git" }
 zenoh = { git = "https://github.com/eclipse-zenoh/zenoh.git" }
 zenoh-util = { git = "https://github.com/eclipse-zenoh/zenoh.git" }
-uhlc = "0.2"
-async-trait = "0.1"
+async-std = { version = "=1.8.0", features = ["unstable"] }
+async-trait = "0.1.38"
+uhlc = "0.2.1"
 lazy_static = "1.4.0"
 env_logger = "0.7.1"
 log = "0.4"
 git-version = "0.3.4"
 rocksdb = "0.15.0"
 
-
-[dependencies.async-std]
-version = "=1.6.5"
-features = ["unstable"]
+[build-dependencies]
+rustc_version = "0.3"
 
 [package.metadata.deb]
 name = "zenoh-backend-rocksdb"

build.rs

@@ -0,0 +1,20 @@
+// Copyright (c) 2017, 2020 ADLINK Technology Inc.
+//
+// This program and the accompanying materials are made available under the
+// terms of the Eclipse Public License 2.0 which is available at
+// http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
+// which is available at https://www.apache.org/licenses/LICENSE-2.0.
+//
+// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
+//
+// Contributors:
+//   ADLINK zenoh team, <zenoh@adlink-labs.tech>
+//
+fn main() {
+    // Add rustc version to zenohd
+    let version_meta = rustc_version::version_meta().unwrap();
+    println!(
+        "cargo:rustc-env=RUSTC_VERSION={}",
+        version_meta.short_version_string
+    );
+}

src/lib.rs

@@ -55,12 +55,13 @@ const MAX_VAL_LEN: usize = 1 + 8 + 8 + uhlc::ID::MAX_SIZE;
 // minimum size of serialized data-info: deleted (u8) + encoding (u64) + timestamp (u64 + ID at 1 byte)
 const MIN_VAL_LEN: usize = 1 + 8 + 8 + uhlc::ID::MAX_SIZE;
 
+const GIT_VERSION: &str = git_version::git_version!(prefix = "v", cargo_prefix = "v");
 lazy_static::lazy_static! {
+    static ref LONG_VERSION: String = format!("{} built with {}", GIT_VERSION, env!("RUSTC_VERSION"));
     static ref GC_PERIOD: Duration = Duration::new(5, 0);
     static ref MIN_DELAY_BEFORE_REMOVAL: NTP64 = NTP64::from(Duration::new(5, 0));
 }
 
-const VERSION: &str = git_version::git_version!(prefix = "v", cargo_prefix = "v");
 
 pub(crate) enum OnClosure {
     DestroyDB,
@@ -72,7 +73,7 @@ pub fn create_backend(_unused: &Properties) -> ZResult<Box<dyn Backend>> {
     // For some reasons env_logger is sometime not active in a loaded library.
     // Try to activate it here, ignoring failures.
     let _ = env_logger::try_init();
-    debug!("RocksDB backend {}", VERSION);
+    debug!("RocksDB backend {}", LONG_VERSION.as_str());
 
     let root = if let Some(dir) = std::env::var_os(SCOPE_ENV_VAR) {
         PathBuf::from(dir)
@@ -83,7 +84,7 @@ pub fn create_backend(_unused: &Properties) -> ZResult<Box<dyn Backend>> {
     };
     let mut properties = Properties::default();
     properties.insert("root".into(), root.to_string_lossy().into());
-    properties.insert("version".into(), VERSION.into());
+    properties.insert("version".into(), LONG_VERSION.clone());
 
     let admin_status = zenoh::utils::properties_to_json_value(&properties);
     Ok(Box::new(RocksdbBackend { admin_status, root }))