[rooch-networkgh-2242] change to long_version.

Cargo.toml

@@ -316,6 +316,7 @@ rocksdb = { version = "0.22.0", features = ["lz4"] }
 ripemd = { version = "0.1.3" }
 fastcrypto-zkp = { version = "0.1.3" }
 function_name = { version = "0.3.0" }
+git2 = { version = "0.19.0" }
 
 # Note: the BEGIN and END comments below are required for external tooling. Do not remove.
 # BEGIN MOVE DEPENDENCIES

crates/rooch/Cargo.toml

@@ -47,6 +47,7 @@ tempfile = { workspace = true }
 redb = { workspace = true }
 [target.'cfg(not(target_env = "msvc"))'.dependencies]
 jemallocator = { version = "0.5.4", features = ["unprefixed_malloc_on_supported_platforms", "profiling"] }
+git2 = { workspace = true }
 
 move-bytecode-utils = { workspace = true }
 move-binary-format = { workspace = true }

crates/rooch/src/lib.rs

@@ -11,14 +11,15 @@ use commands::{
     object::ObjectCommand, resource::ResourceCommand, rpc::Rpc, server::Server,
     session_key::SessionKey, state::StateCommand, transaction::Transaction,
 };
+use git2::{Oid, Repository};
 use rooch_types::error::RoochResult;
 
 pub mod cli_types;
 pub mod commands;
 pub mod utils;
 
 #[derive(clap::Parser)]
-#[clap(author, version, about, long_about = None,
+#[clap(author, long_version(get_latest_tag_and_commit_hash().unwrap().commit_hash_str().unwrap()), about, long_about = None,
 styles = Styles::styled()
 .header(AnsiColor::Green.on_default() | Effects::BOLD)
 .usage(AnsiColor::Green.on_default() | Effects::BOLD)
@@ -50,6 +51,66 @@ pub enum Command {
     Genesis(Genesis),
 }
 
+struct TagData<'a> {
+    latest_tag_name: Option<String>,
+    commit_hash_str: Option<String>,
+    _phantom: std::marker::PhantomData<&'a ()>,
+}
+
+impl<'a> TagData<'a> {
+    fn latest_tag_name(&self) -> Option<&str> {
+        self.latest_tag_name.as_deref()
+    }
+
+    fn commit_hash_str(&self) -> Option<&str> {
+        self.commit_hash_str.as_deref()
+    }
+}
+
+fn get_latest_tag_and_commit_hash() -> Result<TagData<'static>, anyhow::Error> {
+    // Open the repository
+    let repo = Repository::open(".")?;
+
+    // Get all tag names with a specific pattern
+    let tag_names = repo.tag_names(Some("v*.*.*"))?;
+
+    // Collect tags with their commit OIDs
+    let mut tags_with_commits: Vec<(String, Oid)> = vec![];
+
+    for name in tag_names.iter().flatten() {
+        if let Ok(reference) = repo.find_reference(name) {
+            if let Ok(tag) = reference.peel_to_tag() {
+                let target_commit = tag
+                    .target()
+                    .map_err(|_| anyhow::anyhow!("Tag has no target commit"))?;
+                tags_with_commits.push((name.to_string(), target_commit.id()));
+            }
+        }
+    }
+
+    // Sort tags by their commit OID in descending order
+    tags_with_commits.sort_by(|a, b| b.1.cmp(&a.1));
+
+    // Create a TagData struct to hold the results
+    let tag_data =
+        if let Some((latest_tag_name, commit_hash)) = tags_with_commits.into_iter().next() {
+            let commit_hash_str = commit_hash.to_string();
+            TagData {
+                latest_tag_name: Some(latest_tag_name),
+                commit_hash_str: Some(commit_hash_str),
+                _phantom: std::marker::PhantomData,
+            }
+        } else {
+            TagData {
+                latest_tag_name: None,
+                commit_hash_str: None,
+                _phantom: std::marker::PhantomData,
+            }
+        };
+
+    Ok(tag_data)
+}
+
 pub async fn run_cli(opt: RoochCli) -> RoochResult<String> {
     match opt.cmd {
         Command::Account(account) => account.execute().await,