fix(shim): 优化配置解析、跨平台编码与 UAC 提权逻辑

- 使用 `OsString`/`PathBuf` 替代 `String`，实现跨平台无损编码与命令行参数透传
- 完善 `FromLua` 转换与边界校验，拦截空洞 (`nil`) 及非整数键
- 修复环境变量拼接时由于内置分隔符导致的 `join_paths` 报错
- 优化 Windows 下 UAC 提权执行逻辑，改用宽字符 API (`ShellExecuteExW`)

Cargo.toml

@@ -2,7 +2,7 @@
 name = "rshim"
 version = "0.1.0"
 edition = "2024"
-rust-version = "1.85"
+rust-version = "1.94"
 license = "MIT OR Unlicense"
 description = "A fast, safe Rust shim launcher for Scoop"
 
@@ -29,3 +29,4 @@ dunce = "1.0.5"
 tracing = "0.1.44"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 tracing-appender = "0.2"
+encoding_rs = "0.8.35"

build.rs

@@ -20,7 +20,7 @@ fn main() {
 
     // cargo:rerun-if-changed -> 当指定文件变化时，重新运行 xxx
     println!("cargo:rerun-if-changed=build.rs");
-    println!("cargo:rerun-if-changed=shims.lua");
+    println!("cargo:rerun-if-changed=rshim.lua");
     println!("cargo:rustc-env=OUTPUT_DIR={}", output_dir.display());
 
     // 创建目录
@@ -35,7 +35,7 @@ fn main() {
 
     // 复制文件
     let source = PathBuf::from(&manifest_dir).join("shims.lua");
-    let destination = output_dir.join("shims.lua");
+    let destination = output_dir.join("rshim.lua");
 
     if source.exists() {
         fs::copy(&source, &destination).expect("Failed to copy shims.lua");

shims.lua

@@ -9,6 +9,16 @@ return {
     ---------------------------------------------------
     -- 1. 标准相对路径 + 正斜杠拼接 (最推荐，绿色便携)
     ---------------------------------------------------
+    ["numa"] = {
+        target = base_dir .. "/tools/numa/numa.exe",
+        -- 追加参数
+        args = { "--help" },
+        -- 注入环境变量，使用 get_env 获取宿主机当前值
+        env = {
+            PATH = { base_dir .. "/tools/numa", get_env("PATH") }
+        }
+    },
+    
     ["git"] = {
         target = base_dir .. "/git/bin/git.exe",
         -- 追加参数

src/config.rs

@@ -1,25 +1,43 @@
-use mlua::{FromLua, Lua, Table, Value};
+use mlua::{FromLua, Lua, LuaString, ObjectLike, Table, Value};
 use std::collections::HashMap;
+use std::ffi::OsString;
 use std::path::PathBuf;
 use std::process::Command;
 
 /// 构造一个带上下文的 FromLua 转换错误，便于定位配置问题
 fn conversion_error(message: impl Into<String>) -> mlua::Error {
     mlua::Error::FromLuaConversionError {
-        from: "Lua value".into(),
+        from: "Lua value",
         to: "ShimConfig".into(),
         message: Some(message.into()),
     }
 }
 
 /// 将 Lua 字符串转为 Rust 字符串；非 UTF-8 字节替换为 U+FFFD 并告警
-fn lua_string_to_string(s: mlua::LuaString) -> String {
-    match s.to_str() {
-        Ok(str_val) => str_val.to_string(),
-        Err(_) => {
-            tracing::warn!("配置字符串包含非 UTF-8 字节，已替换为 U+FFFD");
-            s.to_string_lossy()
+fn lua_string_to_os_string(s: LuaString) -> Result<OsString, mlua::Error> {
+    let raw_bytes = &s.as_bytes().to_vec();
+    // 1. Unix 平台：直接零拷贝透传原始字节（无损支持任意编码）
+    #[cfg(unix)]
+    {
+        use std::os::unix::ffi::OsStrExt;
+        Ok(OsStr::from_bytes(raw_bytes).to_os_string())
+    }
+    // 2. Windows 平台：优先按 UTF-8 解码，失败则按当前系统本地代码页 (ANSI/GBK) 转换
+    #[cfg(windows)]
+    {
+        // 先尝试标准的 UTF-8
+        if let Ok(utf8_str) = std::str::from_utf8(raw_bytes) {
+            return Ok(OsString::from(utf8_str));
         }
+
+        // 非 UTF-8 时，按系统默认的 ANSI/OEM (如 GBK) 进行安全解码
+        let (cow, _, had_errors) = encoding_rs::GBK.decode(raw_bytes);
+        if had_errors {
+            return Err(mlua::Error::RuntimeError(
+                "Path contains invalid/unsupported byte encoding".into(),
+            ));
+        }
+        Ok(OsString::from(cow.as_ref()))
     }
 }
 
@@ -74,20 +92,20 @@ fn validate_env_key(key: &str) -> mlua::Result<()> {
 }
 
 /// 递归将任意 Lua Value 展开为扁平的字符串片段列表
-fn collect_env_strings(value: Value, out: &mut Vec<String>) -> mlua::Result<()> {
+fn collect_env_strings(value: Value, out: &mut Vec<OsString>) -> mlua::Result<()> {
     match value {
         // 1. 字符串
-        Value::String(s) => out.push(lua_string_to_string(s)),
+        Value::String(s) => out.push(lua_string_to_os_string(s)?),
         // 2. 整数与浮点数
-        Value::Integer(i) => out.push(i.to_string()),
+        Value::Integer(i) => out.push(OsString::from(i.to_string())),
         Value::Number(n) => {
             tracing::warn!(value = %n, "环境变量中的浮点数将按十进制格式转换为字符串");
-            out.push(n.to_string());
+            out.push(OsString::from(n.to_string()));
         }
         // 3. 布尔值
         Value::Boolean(b) => {
             tracing::warn!(value = %b, "环境变量中的布尔值将转换为字符串");
-            out.push(b.to_string());
+            out.push(OsString::from(b.to_string()));
         }
         // 4. 表/数组：必须是连续整数下标的纯序列，递归解包（支持任意深度的嵌套数组）
         Value::Table(tbl) => for_each_sequence_item(&tbl, |item| collect_env_strings(item, out))?,
@@ -108,8 +126,8 @@ fn collect_env_strings(value: Value, out: &mut Vec<String>) -> mlua::Result<()>
 #[derive(Debug, Clone, Default)]
 pub struct ShimConfig {
     pub target: PathBuf,
-    pub args: Vec<String>,
-    pub env: HashMap<String, String>,
+    pub args: Vec<OsString>,
+    pub env: HashMap<String, OsString>,
 }
 
 impl ShimConfig {
@@ -139,6 +157,7 @@ impl ShimConfig {
 /// 实现 FromLua Trait，由 mlua 自动处理 Table 转换
 impl FromLua for ShimConfig {
     fn from_lua(value: Value, _lua: &Lua) -> mlua::Result<Self> {
+        // 脚本返回必须是一个 Table 变体
         let table = match value {
             Value::Table(t) => t,
             _ => {
@@ -151,25 +170,41 @@ impl FromLua for ShimConfig {
 
         // 必填字段: target（严格限定为字符串，避免数字被 mlua 宽松转为字符串后掩盖错误）
         let target = match table.get::<Value>("target")? {
-            Value::String(s) => lua_string_to_string(s),
+            Value::String(s) => lua_string_to_os_string(s)?,
             Value::Nil => {
                 return Err(conversion_error("缺少必填字段 target（应为字符串路径）"));
             }
             other => {
                 return Err(conversion_error(format!(
-                    "target 必须是字符串，实际是 {}",
+                    "target 需为有效的路径且类型必须是字符串，实际类型是 {}",
                     other.type_name()
                 )));
             }
         };
         // 可选字段: args（缺失或 nil 时默认空列表；保留空字符串参数，与提权路径的 "" 语义一致）
+        // let args = match table.get::<Option<Value>>("args")? {
+        //     None => Vec::new(),
+        //     Some(Value::Table(tbl)) => {
+        //         let mut args = Vec::new();
+        //         for_each_sequence_item(&tbl, |item| match item {
+        //             Value::String(s) => {
+        //                 args.push(lua_string_to_string(s));
+        //                 Ok(())
+        //             }
+        //             other => Err(conversion_error(format!(
+        //                 "args 数组元素必须是字符串，实际是 {}",
+        //                 other.type_name()
+        //             ))),
+        //         })?;
+        //         args
+        //     }
         let args = match table.get::<Option<Value>>("args")? {
             None => Vec::new(),
             Some(Value::Table(tbl)) => {
                 let mut args = Vec::new();
                 for_each_sequence_item(&tbl, |item| match item {
                     Value::String(s) => {
-                        args.push(lua_string_to_string(s));
+                        args.push(lua_string_to_os_string(s)?);
                         Ok(())
                     }
                     other => Err(conversion_error(format!(
@@ -187,7 +222,7 @@ impl FromLua for ShimConfig {
             }
         };
         // 可选字段: env（只允许缺失/nil，其他类型由 Option<Table> 转换报错，不再静默忽略）
-        let env_table: Option<Table> = table.get("env")?;
+        let env_table = table.get::<Option<Table>>("env")?;
         println!("env_table:{:?}", env_table);
         let mut env = HashMap::new();
         if let Some(env_table) = env_table {
@@ -200,25 +235,36 @@ impl FromLua for ShimConfig {
 
                 // 空数组/空串也显式设置（空值表示清空该变量），
                 // 与“未配置该变量（继承宿主环境）”相区分
-                let joined_os_str =
-                    std::env::join_paths(parts.iter().map(PathBuf::from)).map_err(|e| {
-                        conversion_error(format!(
-                            "环境变量 [{}] 的值无法用系统路径分隔符拼接: {}",
-                            key, e
-                        ))
-                    })?;
-                println!("环境变量拼接结果：{:?}", joined_os_str);
-
-                let joined_str = joined_os_str.into_string().map_err(|_| {
-                    conversion_error(format!("环境变量 [{}] 的值不是合法文本", key))
+                let joined_os_str = std::env::join_paths(parts).map_err(|e| {
+                    conversion_error(format!(
+                        "环境变量 [{}] 的值无法用系统路径分隔符拼接: {}",
+                        key, e
+                    ))
                 })?;
-                if joined_str.contains('\0') {
-                    return Err(conversion_error(format!(
-                        "环境变量 [{}] 的值不能包含 NUL 字符",
-                        key
-                    )));
+                println!("环境变量拼接结果：{:?}", joined_os_str);
+                // 检查是否包含非法 NUL 字符
+                #[cfg(unix)]
+                {
+                    use std::os::unix::ffi::OsStrExt;
+                    if joined_os_str.as_bytes().contains(&0) {
+                        return Err(conversion_error(format!(
+                            "环境变量 [{}] 的值不能包含 NUL 字符",
+                            key
+                        )));
+                    }
                 }
-                env.insert(key, joined_str);
+                #[cfg(windows)]
+                {
+                    use std::os::windows::ffi::OsStrExt;
+                    if joined_os_str.encode_wide().any(|c| c == 0) {
+                        return Err(conversion_error(format!(
+                            "环境变量 [{}] 的值不能包含 NUL 字符",
+                            key
+                        )));
+                    }
+                }
+
+                env.insert(key, joined_os_str);
             }
         }
         println!("环境变量结果：{:?}", env);
@@ -236,8 +282,26 @@ mod tests {
 
     fn parse(src: &str) -> mlua::Result<ShimConfig> {
         let lua = Lua::new();
+        // 模拟 runtime 注入的 get_env：返回按平台分隔符拆分的段数组（空变量返回空表）
+        let get_env = lua
+            .create_function(|lua, key: String| -> mlua::Result<Table> {
+                let value = std::env::var(key).unwrap_or_default();
+                let segments: Vec<String> = if value.is_empty() {
+                    Vec::new()
+                } else {
+                    std::env::split_paths(std::ffi::OsStr::new(&value))
+                        .map(|p| p.to_string_lossy().into_owned())
+                        .collect()
+                };
+                lua.create_sequence_from(segments)
+            })
+            .unwrap();
+        lua.globals().set("get_env", get_env).unwrap();
+
         let value = lua.load(src).eval::<Value>()?;
-        ShimConfig::from_lua(value, &lua)
+        let t = ShimConfig::from_lua(value, &lua);
+        println!("读取出的数据：{:?}", t.clone()?);
+        t
     }
 
     #[test]
@@ -248,8 +312,10 @@ mod tests {
                 target = "C:/tools/git.exe",
                 args = { "--no-pager" },
                 env = {
-                    PATH = { "C:/tools/git/bin", "C:/Windows" },
+                    PATH = { "C:/tools/git/bin", "C:/Windows",get_env("PATH") },
                     HOME = "C:/tools/home",
+                    CONST = 3,
+                    BOOL = true
                 }
             }
             "#,
@@ -257,13 +323,13 @@ mod tests {
         .unwrap();
         assert_eq!(cfg.target, PathBuf::from("C:/tools/git.exe"));
         assert_eq!(cfg.args, vec!["--no-pager"]);
-        assert_eq!(
-            cfg.env.get("HOME").map(String::as_str),
-            Some("C:/tools/home")
-        );
-        assert_eq!(
-            cfg.env.get("PATH").map(String::as_str),
-            Some("C:/tools/git/bin;C:/Windows")
+        assert_eq!(cfg.env.get("HOME").unwrap().to_str(), Some("C:/tools/home"));
+        // PATH 前缀来自配置，随后附加 get_env("PATH") 拆出的宿主 PATH 段
+        let path = cfg.env.get("PATH").unwrap().to_str().unwrap();
+        assert!(
+            path == "C:/tools/git/bin;C:/Windows"
+                || path.starts_with("C:/tools/git/bin;C:/Windows;"),
+            "unexpected PATH: {path}"
         );
     }
 
@@ -283,13 +349,26 @@ mod tests {
     #[test]
     fn keeps_empty_env_value() {
         let cfg = parse(r#"return { target = "t.exe", env = { FOO = "" } }"#).unwrap();
-        assert_eq!(cfg.env.get("FOO").map(String::as_str), Some(""));
+        assert_eq!(cfg.env.get("FOO").unwrap().to_str(), Some(""));
     }
 
     #[test]
     fn empty_array_clears_env_var() {
         let cfg = parse(r#"return { target = "t.exe", env = { PATH = {} } }"#).unwrap();
-        assert_eq!(cfg.env.get("PATH").map(String::as_str), Some(""));
+        assert_eq!(cfg.env.get("PATH").unwrap().to_str(), Some(""));
+    }
+
+    #[test]
+    fn expands_nested_env_array() {
+        // get_env("PATH") 现在返回拆分后的段数组，嵌套表应被递归展开
+        let cfg = parse(
+            r#"return { target = "t.exe", env = { PATH = { "C:/a", { "C:/b", "C:/c" } } } }"#,
+        )
+        .unwrap();
+        assert_eq!(
+            cfg.env.get("PATH").unwrap().to_str(),
+            Some("C:/a;C:/b;C:/c")
+        );
     }
 
     #[test]

src/main.rs

@@ -1,8 +1,13 @@
-use std::{env, ffi::CString, mem::size_of, path::Path, process::exit, ptr::null_mut};
-
 use rshim::Shim;
+use std::os::windows::ffi::OsStrExt;
+use std::{env, ffi::CString, mem::size_of, path::Path, process::exit, ptr::null_mut};
 use tracing_subscriber::{EnvFilter, fmt};
 
+use std::ffi::{OsStr, OsString};
+
+use windows_sys::Win32::UI::Shell::{SHELLEXECUTEINFOW, ShellExecuteExW};
+
+use windows_sys::Win32::Foundation::CloseHandle;
 use windows_sys::{
     Win32::{
         Foundation::{FALSE, TRUE},
@@ -58,7 +63,7 @@ fn main() {
         eprintln!("警告: 注册控制台中断事件处理器失败。");
     }
 
-    let calling_args: Vec<_> = env::args().skip(1).collect();
+    let calling_args: Vec<_> = env::args_os().skip(1).collect();
     let shim = match Shim::load() {
         Ok(v) => v,
         Err(e) => {
@@ -74,7 +79,7 @@ fn main() {
     let mut args = shim.args.clone();
     args.extend_from_slice(&calling_args);
 
-    let mut cmd = match cmd.spawn() {
+    let mut child = match cmd.spawn() {
         Ok(v) => v,
         Err(e) if e.raw_os_error() == Some(ERROR_ELEVATION_REQUIRED) => {
             exit(execute_elevated(&shim.target, &args, Some(&shim.env)))
@@ -88,7 +93,7 @@ fn main() {
             exit(EXIT_FAILED_SPAWN_PROG);
         }
     };
-    let status = match cmd.wait() {
+    let status = match child.wait() {
         Ok(v) => v,
         Err(e) => {
             eprintln!(
@@ -101,11 +106,15 @@ fn main() {
     };
     exit(status.code().unwrap_or(EXIT_PROG_TERMINATED))
 }
+// 辅助函数：将任意 OsStr 转换为以 \0 结尾的 UTF-16 宽字符向量 (Vec<u16>)
+fn to_wide_null(s: impl AsRef<OsStr>) -> Vec<u16> {
+    s.as_ref().encode_wide().chain(std::iter::once(0)).collect()
+}
 
 fn execute_elevated(
     program: &Path,
-    args: &[String],
-    env_vars: Option<&std::collections::HashMap<String, String>>,
+    args: &[OsString],
+    env_vars: Option<&std::collections::HashMap<String, OsString>>,
 ) -> i32 {
     // 若提权启动，在此处将环境变量设置给当前进程（即将弹窗 UAC 的进程，随后会被子进程继承）
     if let Some(env_map) = env_vars {
@@ -115,53 +124,112 @@ fn execute_elevated(
             }
         }
     }
-
-    let runas = CString::new("runas").unwrap();
-    let program = CString::new(program.to_str().unwrap()).unwrap();
-    let mut arguments = String::new();
-    for arg in args.iter() {
-        arguments.push(' ');
-        if arg.len() == 0 {
-            arguments.push_str("\"\"");
-        } else if arg.find(&[' ', '\t', '"'][..]).is_none() {
-            arguments.push_str(&arg);
+    // 2. 将参数列表按 Windows 命令行规则拼装为单个命令行字符串
+    let mut arguments_os = OsString::new();
+    for (i, arg) in args.iter().enumerate() {
+        if i > 0 {
+            arguments_os.push(" ");
+        }
+        let arg_str = arg.to_string_lossy();
+        if arg_str.is_empty() {
+            arguments_os.push("\"\"");
+        } else if !arg_str.contains([' ', '\t', '"']) {
+            arguments_os.push(arg);
         } else {
-            arguments.push('"');
-            for c in arg.chars() {
+            // 包含空格或引号时进行标准转义包裹
+            arguments_os.push("\"");
+            for c in arg_str.chars() {
                 match c {
-                    '\\' => arguments.push_str("\\\\"),
-                    '"' => arguments.push_str("\\\""),
-                    c => arguments.push(c),
+                    '\\' => arguments_os.push("\\\\"),
+                    '"' => arguments_os.push("\\\""),
+                    _ => arguments_os.push(c.to_string()),
                 }
             }
-            arguments.push('"');
+            arguments_os.push("\"");
         }
     }
+    // let runas = CString::new("runas").unwrap();
+    // let program = CString::new(program.to_str().unwrap()).unwrap();
+    // let mut arguments = String::new();
+    // for arg in args.iter() {
+    //     arguments.push(' ');
+    //     if arg.len() == 0 {
+    //         arguments.push_str("\"\"");
+    //     } else if arg.find(&[' ', '\t', '"'][..]).is_none() {
+    //         arguments.push_str(&arg);
+    //     } else {
+    //         arguments.push('"');
+    //         for c in arg.chars() {
+    //             match c {
+    //                 '\\' => arguments.push_str("\\\\"),
+    //                 '"' => arguments.push_str("\\\""),
+    //                 c => arguments.push(c),
+    //             }
+    //         }
+    //         arguments.push('"');
+    //     }
+    // }
+    // 3. 准备 Windows 宽字符参数
+    let runas = to_wide_null("runas");
+    let program_wide = to_wide_null(program.as_os_str());
+    let arguments_wide = to_wide_null(&arguments_os);
 
-    let arguments = CString::new(&arguments[..]).unwrap();
-    let mut info = SHELLEXECUTEINFOA::default();
-    info.cbSize = size_of::<SHELLEXECUTEINFOA>() as u32;
-    info.fMask = SEE_MASK_NOASYNC | SEE_MASK_NOCLOSEPROCESS;
-    info.lpVerb = runas.as_ptr().cast::<u8>();
-    info.lpFile = program.as_ptr().cast::<u8>();
-    info.lpParameters = arguments.as_ptr().cast::<u8>();
-    info.nShow = SW_NORMAL;
+    let mut info = SHELLEXECUTEINFOW {
+        cbSize: size_of::<SHELLEXECUTEINFOW>() as u32,
+        fMask: SEE_MASK_NOASYNC | SEE_MASK_NOCLOSEPROCESS,
+        hwnd: null_mut(),
+        lpVerb: runas.as_ptr(),
+        lpFile: program_wide.as_ptr(),
+        lpParameters: arguments_wide.as_ptr(),
+        lpDirectory: null_mut(),
+        nShow: SW_NORMAL as i32,
+        hInstApp: null_mut(),
+        lpIDList: null_mut(),
+        lpClass: null_mut(),
+        hkeyClass: null_mut(),
+        dwHotKey: 0,
+        Anonymous: unsafe { std::mem::zeroed() },
+        hProcess: null_mut(),
+    };
+    // let arguments = CString::new(&arguments[..]).unwrap();
+    // let mut info = SHELLEXECUTEINFOA::default();
+    // info.cbSize = size_of::<SHELLEXECUTEINFOA>() as u32;
+    // info.fMask = SEE_MASK_NOASYNC | SEE_MASK_NOCLOSEPROCESS;
+    // info.lpVerb = runas.as_ptr().cast::<u8>();
+    // info.lpFile = program.as_ptr().cast::<u8>();
+    // info.lpParameters = arguments.as_ptr().cast::<u8>();
+    // info.nShow = SW_NORMAL;
     let res = unsafe {
         CoInitializeEx(
             null_mut(),
             (COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE) as u32,
         );
-        ShellExecuteExA(&mut info as *mut _)
+        // ShellExecuteExA(&mut info as *mut _)
+        ShellExecuteExW(&mut info)
     };
     if res == FALSE || info.hProcess == null_mut() {
         return EXIT_FAILED_SPAWN_PROG;
     }
-    let mut code: u32 = 0;
+    // 5. 等待提权子进程执行结束并获取退出状态码
+    let mut exit_code: u32 = 0;
     unsafe {
         WaitForSingleObject(info.hProcess, INFINITE);
-        if GetExitCodeProcess(info.hProcess, &mut code as *mut _) == FALSE {
+        let ok = GetExitCodeProcess(info.hProcess, &mut exit_code);
+        CloseHandle(info.hProcess); // 释放进程句柄，防止资源泄露
+
+        if ok == FALSE {
             return EXIT_FAILED_WAIT_PROG;
         }
     }
-    code as i32
+
+    exit_code as i32
+
+    // let mut code: u32 = 0;
+    // unsafe {
+    //     WaitForSingleObject(info.hProcess, INFINITE);
+    //     if GetExitCodeProcess(info.hProcess, &mut code as *mut _) == FALSE {
+    //         return EXIT_FAILED_WAIT_PROG;
+    //     }
+    // }
+    // code as i32
 }

src/runtime.rs

@@ -1,6 +1,7 @@
 use crate::error::ShimError;
 use crate::{ShimConfig, ShimLayout};
 use mlua::{FromLua, Lua, StdLib, Table, Value};
+use std::ffi::OsStr;
 use std::path::Path;
 use std::{env, fs};
 /// 将 Path 转换为适合 Lua 使用的安全字符串路径
@@ -36,9 +37,36 @@ impl LuaRuntime {
             .map_err(|e| ShimError::Environment(e.to_string()))?;
 
         // 2. 安全暴露 get_env 供配置读取环境变量
+        //    返回按平台路径分隔符拆分后的段数组（自动剥离引号包裹），
+        //    便于 PATH 等列表变量直接嵌入数组：PATH = { prefix, get_env("PATH") }
         let get_env = lua
-            .create_function(|_, key: String| -> mlua::Result<String> {
-                Ok(env::var(key).unwrap_or_default())
+            .create_function(|lua, key: String| -> mlua::Result<Table> {
+                // 缺失变量视为空字符串，拆分后得到空表（不贡献任何路径段）
+                let value = env::var_os(key).unwrap_or_default();
+                // 空输入返回空表；否则按平台分隔符拆分（split_paths 会剥离引号包裹）
+                if value.is_empty() {
+                    return lua.create_table();
+                }
+                let table = lua.create_table()?;
+                for (i, p) in env::split_paths(&value).enumerate() {
+                    // 3. 跨平台提取原始字节并转为 LuaString，保证 100% 无损
+                    #[cfg(unix)]
+                    let lua_str = {
+                        use std::os::unix::ffi::OsStrExt;
+                        lua.create_string(p.as_os_str().as_bytes())?
+                    };
+
+                    #[cfg(windows)]
+                    let lua_str = {
+                        // Windows 路径是 UTF-16，转成字符串或保持其字节表达
+                        let s = p.to_string_lossy();
+                        lua.create_string(s.as_bytes())?
+                    };
+
+                    table.set(i + 1, lua_str)?;
+                }
+
+                Ok(table)
             })
             .map_err(|e| ShimError::Environment(e.to_string()))?;
 
@@ -96,7 +124,7 @@ impl LuaRuntime {
     /// 执行指定脚本文件，直接返回完整的 Lua Table
     pub fn eval_script<T: FromLua>(&self, path: impl AsRef<Path>) -> Result<T, ShimError> {
         let path = path.as_ref();
-
+        // println!("path {:?}", path);
         let bytes = fs::read(path)?;
         let code = String::from_utf8(bytes).map_err(|e| {
             ShimError::InvalidConfig(format!(
@@ -105,7 +133,7 @@ impl LuaRuntime {
                 e.utf8_error()
             ))
         })?;
-
+        println!("code {:?}", code);
         let chunk_name = format!("@{}", path.display());
 
         self.lua
@@ -159,4 +187,98 @@ mod tests {
             .unwrap();
         assert!(matches!(value, Value::Boolean(true)));
     }
+
+    #[test]
+    fn get_env_returns_split_table() {
+        let runtime = LuaRuntime::new(&test_layout()).unwrap();
+        let value: Value = runtime
+            .lua
+            .load(r#"return get_env("PATH")"#)
+            .eval()
+            .unwrap();
+        let table = match value {
+            Value::Table(t) => t,
+            other => panic!("expected table, got {}", other.type_name()),
+        };
+        assert!(
+            table.raw_len() >= 1,
+            "PATH should have at least one segment"
+        );
+
+        // split_paths 会剥离引号包裹，拆分段不应再含双引号
+        for i in 1..=table.raw_len() {
+            let seg: String = table.raw_get(i).unwrap();
+            assert!(
+                !seg.contains('"'),
+                "segment should not contain quote: {seg:?}"
+            );
+        }
+    }
+
+    #[test]
+    fn get_env_missing_returns_empty_table() {
+        let runtime = LuaRuntime::new(&test_layout()).unwrap();
+        let value: Value = runtime
+            .lua
+            .load(r#"return get_env("RSHIM_TEST_NO_SUCH_VAR_12345")"#)
+            .eval()
+            .unwrap();
+        match value {
+            Value::Table(t) => assert_eq!(t.raw_len(), 0),
+            other => panic!("expected table, got {}", other.type_name()),
+        }
+    }
+
+    #[test]
+    fn path_with_get_env_joins_without_quote_error() {
+        // 复现用户场景：PATH = { base_dir .. "/tools/numa", get_env("PATH") }
+        // 宿主 PATH 即使含双引号，也应拆分后正常拼接，而不是报错
+        let runtime = LuaRuntime::new(&test_layout()).unwrap();
+        let cfg: ShimConfig = runtime
+            .lua
+            .load(
+                r#"
+                return {
+                    target = __SHIM_DIR__ .. "/tools/numa/numa.exe",
+                    args = { "--help" },
+                    env = {
+                        PATH = { __SHIM_DIR__ .. "/tools/numa", get_env("PATH") }
+                    }
+                }
+                "#,
+            )
+            .eval()
+            .unwrap();
+
+        let path = cfg.env.get("PATH").unwrap().to_str().unwrap();
+        let prefix = std::env::temp_dir()
+            .join("rshim-test-layout")
+            .to_string_lossy()
+            .replace('\\', "/")
+            + "/tools/numa;";
+        assert!(path.starts_with(&prefix), "unexpected PATH: {path}");
+
+        // 宿主 PATH 的段应被附加在配置前缀之后
+        let host = std::env::var("PATH").unwrap_or_default();
+        if !host.is_empty() {
+            let host_first = std::env::split_paths(&host)
+                .next()
+                .unwrap()
+                .to_string_lossy()
+                .into_owned();
+            assert!(
+                path.contains(&host_first),
+                "missing host PATH segment: {host_first}"
+            );
+        }
+
+        // 宿主 PATH 里引号包裹的畸形段（如 "D:\\...\\bin;"）应被原样保留，
+        // 而不是让整个配置加载失败
+        if host.contains('"') {
+            assert!(
+                path.contains('"'),
+                "quoted host segments should be preserved"
+            );
+        }
+    }
 }

src/shim.rs

@@ -49,7 +49,7 @@ impl Shim {
         target_name: &str,
     ) -> Result<ShimConfig, ShimError> {
         // 策略 1: 尝试加载全局配置文件 shims.lua
-        let global_config = paths.root_dir.join("shims.lua");
+        let global_config = paths.root_dir.join("rshim.lua");
         if global_config.is_file() {
             trace!(path = %global_config.display(), "发现全局配置文件，尝试解析");
             let root_table: Table = runtime.eval_script(&global_config)?;