enhanced version command with more info (#2773)

crates/nu-cli/build.rs

@@ -1,36 +1,6 @@
-use std::path::Path;
-use std::{env, fs, io};
-
-fn main() -> Result<(), io::Error> {
-    let out_dir = env::var_os("OUT_DIR").expect(
-    "\
-        OUT_DIR environment variable not found. \
-        OUT_DIR is guaranteed to exist in a build script by cargo - see \
-        https://doc.rust-lang.org/cargo/reference/environment-variables.html#environment-variables-cargo-sets-for-build-scripts\
-    ");
-
-    let latest_commit_hash = latest_commit_hash(env::current_dir()?).unwrap_or_default();
-
-    let commit_hash_path = Path::new(&out_dir).join("git_commit_hash");
-    fs::write(commit_hash_path, latest_commit_hash)?;
-
+fn main() -> shadow_rs::SdResult<()> {
+    let src_path = std::env::var("CARGO_MANIFEST_DIR")?;
+    let out_path = std::env::var("OUT_DIR")?;
+    shadow_rs::Shadow::build(src_path, out_path)?;
     Ok(())
 }
-
-#[allow(unused_variables)]
-fn latest_commit_hash<P: AsRef<Path>>(dir: P) -> Result<String, Box<dyn std::error::Error>> {
-    #[cfg(feature = "git2")]
-    {
-        use git2::Repository;
-        let dir = dir.as_ref();
-        Ok(Repository::discover(dir)?
-            .head()?
-            .peel_to_commit()?
-            .id()
-            .to_string())
-    }
-    #[cfg(not(feature = "git2"))]
-    {
-        Ok(String::new())
-    }
-}