diff --git a/script-config.json b/script-config.json
new file mode 100644
index 0000000..2cd36d5
--- /dev/null
+++ b/script-config.json
@@ -0,0 +1,6 @@
+{
+  "file_ext": "dart",
+  "simple_script_url": "https://git.hatter.ink/hatter/dart-scripts/raw/branch/main/single-scripts/$NAME",
+  "project_script_url": "https://git.hatter.ink/hatter/dart-scripts/raw/branch/main/$NAME/main.dart",
+  "skip_dirs": []
+}
diff --git a/script-meta-v2.json b/script-meta-v2.json
new file mode 100644
index 0000000..847a5f4
--- /dev/null
+++ b/script-meta-v2.json
@@ -0,0 +1,8 @@
+{
+  "helloworld.dart": {
+    "script_name": "helloworld.dart",
+    "script_length": 74,
+    "script_sha256": "a4ec48f29f109da6bddedd6044362310b15451cd467bfc79594e34e5179393dd",
+    "script_full_url": "https://git.hatter.ink/hatter/dart-scripts/raw/branch/main/helloworld-dart/main.dart"
+  }
+}
\ No newline at end of file
diff --git a/update-meta.rs b/update-meta-v1.rs
similarity index 100%
rename from update-meta.rs
rename to update-meta-v1.rs
diff --git a/update-meta-v2.rs b/update-meta-v2.rs
new file mode 100755
index 0000000..f14586c
--- /dev/null
+++ b/update-meta-v2.rs
@@ -0,0 +1,208 @@
+#!/usr/bin/env runrs
+
+//! ```cargo
+//! [dependencies]
+//! serde = { version = "1.0", features = ["derive"] }
+//! serde_json = "1.0"
+//! sha256 = "1.5"
+//! rust_util = { version = "0.6" }
+//! ```
+
+use rust_util::{
+    debugging, failure_and_exit, iff, opt_result, opt_value_result, success, warning, XResult,
+};
+use serde::{Deserialize, Serialize};
+use std::collections::BTreeMap;
+use std::fs;
+use std::option::Option;
+use std::path::PathBuf;
+
+const SCRIPT_META_FILE: &str = "script-meta-v2.json";
+const SCRIPT_CONFIG_FILE: &str = "script-config.json";
+const SINGLE_SCRIPTS_DIR: &str = "single-scripts";
+
+#[derive(Debug, Deserialize)]
+struct ScriptConfig {
+    file_ext: String,
+    simple_script_url: String,
+    project_script_url: String,
+    script_sub_dir: Option<String>,
+    skip_dirs: Vec<String>,
+}
+
+impl ScriptConfig {
+    fn skip_dir(&self, dir: &str) -> bool {
+        for skip_dir in &self.skip_dirs {
+            if skip_dir == dir {
+                return true;
+            }
+        }
+        dir == "update-meta-rs" || dir == SINGLE_SCRIPTS_DIR || dir.starts_with(".")
+    }
+}
+
+#[derive(Serialize)]
+struct ScriptMeta {
+    script_name: String,
+    script_length: u64,
+    script_sha256: String,
+    script_full_url: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    single_script_file: Option<bool>,
+}
+
+fn main() -> XResult<()> {
+    if fs::metadata(SCRIPT_CONFIG_FILE).is_err() {
+        failure_and_exit!("Script config file {} not found.", SCRIPT_CONFIG_FILE);
+    }
+    if fs::metadata(SCRIPT_META_FILE).is_err() {
+        failure_and_exit!("Script meta file {} not found.", SCRIPT_META_FILE);
+    }
+
+    let script_config_content = opt_result!(
+        fs::read_to_string(SCRIPT_CONFIG_FILE),
+        "Read {}, failed: {}",
+        SCRIPT_CONFIG_FILE
+    );
+    let script_config: ScriptConfig = opt_result!(
+        serde_json::from_str(&script_config_content),
+        "Parse {}, failed: {}",
+        SCRIPT_CONFIG_FILE
+    );
+    debugging!("Script config: {:#?}", script_config);
+
+    let mut script_meta_map = BTreeMap::new();
+
+    let current_read_dir = opt_result!(fs::read_dir("."), "Read dir '.' failed: {}");
+    for dir in current_read_dir {
+        let dir_entry = opt_result!(dir, "Get dir failed: {}");
+        let dir_file_type = opt_result!(dir_entry.file_type(), "Get dir type failed: {}");
+        let file_name_os_string = dir_entry.file_name();
+        let script_dir = opt_value_result!(file_name_os_string.to_str(), "Cannot get file name.");
+        if !dir_file_type.is_dir() {
+            debugging!("Skip none dir: {}", script_dir);
+            continue;
+        }
+        if script_config.skip_dir(&script_dir) {
+            debugging!("Skip update skip dirs: {}", script_dir);
+            continue;
+        }
+        let abs_dir_entry = std::path::absolute(&dir_entry.path())?;
+        let mut main_script = abs_dir_entry;
+        if let Some(sub_dir) = &script_config.script_sub_dir {
+            main_script = main_script.join(sub_dir);
+        }
+        main_script = main_script.join(format!("main.{}", script_config.file_ext));
+
+        if let Some(script_file_name) =
+            translate_script_dir_to_script_name(script_dir, &script_config)
+        {
+            script_meta_map.insert(
+                script_file_name.clone(),
+                read_script_meta(
+                    script_dir,
+                    script_file_name.clone(),
+                    &main_script,
+                    false,
+                    &script_config,
+                )?,
+            );
+        }
+    }
+
+    if let Ok(single_script_meta) = fs::metadata(SINGLE_SCRIPTS_DIR) {
+        if single_script_meta.is_dir() {
+            let single_scripts_read_dir =
+                opt_result!(fs::read_dir(SINGLE_SCRIPTS_DIR), "Read dir '.' failed: {}");
+            for file in single_scripts_read_dir {
+                let file_entry = opt_result!(file, "Get dir failed: {}");
+                let dir_file_type = opt_result!(file_entry.file_type(), "Get dir type failed: {}");
+                let file_name_os_string = file_entry.file_name();
+                let script_file =
+                    opt_value_result!(file_name_os_string.to_str(), "Cannot get file name.");
+                if !dir_file_type.is_file() {
+                    debugging!("Skip none file: {}", script_file);
+                    continue;
+                }
+                let abs_file_entry = std::path::absolute(&file_entry.path())?;
+                let script_file_ext = format!(".{}", script_config.file_ext);
+                if !script_file.ends_with(&script_file_ext) {
+                    continue;
+                }
+                let script_file_name = script_file.to_string();
+                if script_meta_map.contains_key(&script_file_name) {
+                    warning!("Script: {script_file_name} exists.");
+                    continue;
+                }
+                script_meta_map.insert(
+                    script_file_name.clone(),
+                    read_script_meta(
+                        "",
+                        script_file_name.clone(),
+                        &abs_file_entry,
+                        true,
+                        &script_config,
+                    )?,
+                );
+            }
+        }
+    }
+
+    let script_meta_json = serde_json::to_string_pretty(&script_meta_map)?;
+
+    fs::write(SCRIPT_META_FILE, script_meta_json.as_bytes())?;
+
+    success!("Update file: {} succeed.", SCRIPT_META_FILE);
+
+    Ok(())
+}
+
+// translate filename-ext to filename.ext
+fn translate_script_dir_to_script_name(
+    script_dir: &str,
+    script_config: &ScriptConfig,
+) -> Option<String> {
+    let script_dir_ext = format!("-{}", script_config.file_ext);
+    if script_dir.ends_with(&script_dir_ext) {
+        let remove_ext_dir_name = script_dir
+            .chars()
+            .take(script_dir.len() - script_dir_ext.len())
+            .collect::<String>();
+        Some(format!("{remove_ext_dir_name}.{}", script_config.file_ext))
+    } else {
+        None
+    }
+}
+
+fn read_script_meta(
+    script_dir: &str,
+    script_name: String,
+    script_path: &PathBuf,
+    is_simple_script: bool,
+    script_config: &ScriptConfig,
+) -> XResult<ScriptMeta> {
+    let script_meta = opt_result!(
+        script_path.metadata(),
+        "Read file: {:?} meta failed: {}",
+        script_path
+    );
+    let script_path_content = fs::read(script_path)?;
+    let script_sha256 = sha256::digest(&script_path_content);
+    let script_full_url = if is_simple_script {
+        script_config
+            .simple_script_url
+            .replace("$NAME", &script_name)
+    } else {
+        script_config
+            .project_script_url
+            .replace("$NAME", script_dir)
+    };
+    let single_script_file = iff!(is_simple_script, Some(true), None);
+    Ok(ScriptMeta {
+        script_name: script_name.clone(),
+        script_length: script_meta.len(),
+        script_sha256,
+        script_full_url,
+        single_script_file,
+    })
+}