feat: init commit, add helloworld-dart

helloworld-dart/main.dart

@@ -0,0 +1,5 @@
+#!/usr/bin/env dart
+
+main(List<String> args) {
+  print("Hello world.");
+}

script-meta.json

@@ -0,0 +1,7 @@
+{
+  "helloworld-dart": {
+    "script_name": "helloworld-dart",
+    "script_length": 74,
+    "script_sha256": "a4ec48f29f109da6bddedd6044362310b15451cd467bfc79594e34e5179393dd"
+  }
+}

update-meta.rs

@@ -0,0 +1,75 @@
+#!/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, opt_result, opt_value_result, success, XResult};
+use serde::Serialize;
+use std::collections::BTreeMap;
+use std::fs;
+use std::path::PathBuf;
+
+const SCRIPT_META_FILE: &str = "script-meta.json";
+
+#[derive(Serialize)]
+struct ScriptMeta {
+    script_name: String,
+    script_length: u64,
+    script_sha256: String,
+}
+
+fn main() -> XResult<()> {
+    if fs::metadata(SCRIPT_META_FILE).is_err() {
+        failure_and_exit!("Script meta file {} not found.", SCRIPT_META_FILE);
+    }
+
+    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 /*"update-meta-rs" == script_dir ||*/ script_dir.starts_with(".") {
+            debugging!("Skip update meta rs: {}", script_dir);
+            continue;
+        }
+        let abs_dir_entry = std::path::absolute(&dir_entry.path())?;
+        let main_rs = abs_dir_entry
+            .join("main.dart");
+
+        script_meta_map.insert(
+            script_dir.to_string(),
+            read_script_meta(script_dir, &main_rs)?,
+        );
+    }
+
+    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(())
+}
+
+fn read_script_meta(file_name: &str, main_rs: &PathBuf) -> XResult<ScriptMeta> {
+    let main_rs_meta = opt_result!(main_rs.metadata(), "Read file: {:?} meta failed: {}", main_rs);
+    let main_rs_content = fs::read(main_rs)?;
+    let script_sha256 = sha256::digest(&main_rs_content);
+    Ok(ScriptMeta {
+        script_name: file_name.to_string(),
+        script_length: main_rs_meta.len(),
+        script_sha256,
+    })
+}