feat: Add --version flag to dynamo-run (#1596)

Cargo.lock

@@ -1683,6 +1683,7 @@ dependencies = [
  "tracing",
  "tracing-subscriber",
  "uuid 1.16.0",
+ "vergen-gitcl",
 ]
 
 [[package]]
@@ -7162,6 +7163,43 @@ dependencies = [
  "uuid 0.8.2",
 ]
 
+[[package]]
+name = "vergen"
+version = "9.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b2bf58be11fc9414104c6d3a2e464163db5ef74b12296bda593cac37b6e4777"
+dependencies = [
+ "anyhow",
+ "derive_builder",
+ "rustversion",
+ "vergen-lib",
+]
+
+[[package]]
+name = "vergen-gitcl"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9dfc1de6eb2e08a4ddf152f1b179529638bedc0ea95e6d667c014506377aefe"
+dependencies = [
+ "anyhow",
+ "derive_builder",
+ "rustversion",
+ "time",
+ "vergen",
+ "vergen-lib",
+]
+
+[[package]]
+name = "vergen-lib"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b07e6010c0f3e59fcb164e0163834597da68d1f864e2b8ca49f74de01e9c166"
+dependencies = [
+ "anyhow",
+ "derive_builder",
+ "rustversion",
+]
+
 [[package]]
 name = "version-compare"
 version = "0.2.0"

launch/dynamo-run/Cargo.toml

@@ -50,3 +50,7 @@ clap = { version = "4.5", features = ["derive", "env"] }
 dialoguer = { version = "0.11", default-features = false, features = ["editor", "history"] }
 futures-util = { version = "0.3" }
 regex = "1"
+
+[build-dependencies]
+vergen-gitcl = "1.0"
+anyhow = { workspace = true }

launch/dynamo-run/build.rs

@@ -15,14 +15,23 @@
 
 use std::env;
 use std::process::Command;
+use vergen_gitcl::{Emitter, GitclBuilder};
 
-fn main() {
+fn main() -> anyhow::Result<()> {
     if has_cuda_toolkit() && !has_feature("cuda") && is_cuda_engine() {
         println!("cargo:warning=CUDA not enabled, re-run with `--features cuda`");
     }
     if is_mac() && !has_feature("metal") {
         println!("cargo:warning=Metal not enabled, re-run with `--features metal`");
     }
+
+    let git_config = GitclBuilder::default()
+        .describe(true, false, None)
+        .build()?;
+
+    Emitter::default().add_instructions(&git_config)?.emit()?;
+
+    Ok(())
 }
 
 fn has_feature(s: &str) -> bool {

launch/dynamo-run/src/main.rs

@@ -82,6 +82,13 @@ async fn wrapper(runtime: dynamo_runtime::Runtime) -> anyhow::Result<()> {
         println!("{usage}");
         println!("{HELP}");
         return Ok(());
+    } else if args[0] == "--version" {
+        if let Some(describe) = option_env!("VERGEN_GIT_DESCRIBE") {
+            println!("dynamo-run {}", describe);
+        } else {
+            println!("Version not available (git describe not available)");
+        }
+        return Ok(());
     }
     for arg in env::args().skip(1).take(2) {
         let Some((in_out, val)) = arg.split_once('=') else {