fix: identify build type with cfg

build.rs

@@ -19,7 +19,7 @@ fn main() {
     let build_root = cargo::get_build_root();
     let use_static_build = !cargo::get_feature("dynamic_build");
 
-    insert_build_metadata(use_static_build);
+    insert_build_metadata();
 
     // Build and link all the relevant tarantool libraries.
     // For more info, read the comments in tarantool-build.
@@ -36,24 +36,9 @@ fn main() {
     }
 }
 
-fn insert_build_metadata(use_static_build: bool) {
-    rustc::env(
-        "BUILD_TYPE",
-        if use_static_build {
-            "static"
-        } else {
-            "dynamic"
-        },
-    );
-
-    rustc::env(
-        "BUILD_MODE",
-        if cfg!(debug_assertions) {
-            "debug"
-        } else {
-            "release"
-        },
-    );
+fn insert_build_metadata() {
+    let build_mode = std::env::var("PROFILE").expect("always set");
+    rustc::env("BUILD_MODE", build_mode);
 
     let os_version = std::process::Command::new("uname")
         .args(["-srmo"])

src/cli/args.rs

 use crate::address::{HttpAddress, IprotoAddress};
 use crate::config::{ByteSize, DEFAULT_USERNAME};
-use crate::info::FULL_PICODATA_VERSION;
+use crate::info::version_for_help;
 use crate::util::Uppercase;
 use clap::Parser;
 use std::borrow::Cow;
@@ -11,7 +11,7 @@ use tarantool::log::SayLevel;
 use tarantool::tlua;
 
 #[derive(Debug, Parser)]
-#[clap(name = "picodata", version = FULL_PICODATA_VERSION)]
+#[clap(name = "picodata", version = version_for_help())]
 pub enum Picodata {
     Run(Box<Run>),
     #[clap(hide = true)]

src/info.rs

@@ -13,19 +13,39 @@ use std::borrow::Cow;
 use tarantool::proc;
 use tarantool::tuple::RawByteBuf;
 
-pub const FULL_PICODATA_VERSION: &'static str = concat!(
-    env!("GIT_DESCRIBE"),
-    ", ",
-    env!("BUILD_TYPE"),
-    ", ",
-    env!("BUILD_MODE"),
-    "\n",
-    env!("OS_VERSION")
-);
-
 pub const PICODATA_VERSION: &'static str = std::env!("GIT_DESCRIBE");
 pub const RPC_API_VERSION: &'static str = "1.0.0";
 
+/// Note: this returns a `&'static str` because of clap's requirements.
+pub fn version_for_help() -> &'static str {
+    static VERSION_OUTPUT: std::sync::OnceLock<String> = std::sync::OnceLock::new();
+
+    const BUILD_TYPE: &str = {
+        #[cfg(feature = "dynamic_build")]
+        {
+            "dynamic"
+        }
+        #[cfg(not(feature = "dynamic_build"))]
+        {
+            "static"
+        }
+    };
+
+    VERSION_OUTPUT.get_or_init(|| {
+        let mut result = PICODATA_VERSION.to_string();
+        result.push_str(", ");
+
+        result.push_str(BUILD_TYPE);
+        result.push_str(", ");
+
+        result.push_str(env!("BUILD_MODE"));
+        result.push('\n');
+
+        result.push_str(env!("OS_VERSION"));
+        result
+    })
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // VersionInfo
 ////////////////////////////////////////////////////////////////////////////////