添加installer

Cargo.toml

@@ -24,3 +24,6 @@ winapi = { version = "0.3", features = ["winnt"] }
 [dependencies]
 blake3 = "1.5.1"
 toml = "0.8"
+
+[workspace]
+members = ["installer"]

installer/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "installer"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = { version = "1.0.82", features = ["backtrace"] }
+blake3 = "1.5.1"
+clap = { version = "4.5.4", features = ["derive"] }
+toml = "0.8.12"

installer/src/main.rs

@@ -0,0 +1,68 @@
+use clap::Parser;
+use blake3::Hasher;
+
+#[derive(Clone, Parser, Debug)]
+#[command(version, about)]
+pub struct CliArg {
+    #[arg(long, short = 't')]
+    pub target_bin: String,
+    #[arg(long, short = 'c')]
+    pub check: bool,
+}
+
+#[derive(Clone)]
+pub struct RawConfig {
+    pub show_console: Option<bool>,
+    pub verbose: Option<bool>,
+    pub chdir: Option<String>,
+    pub bin: Option<String>,
+    pub bin_arg: Option<String>,
+    pub config: Option<String>,
+}
+
+
+fn check_only(config: CliArg) -> anyhow::Result<()> {
+    let target = config.target_bin;
+    
+    // 读取 target
+    let target_bin = std::fs::read(target)?;
+
+    // 读取最后 32 bit 作为校验码 
+    let (data, verify_data) = target_bin.split_at(target_bin.len() - 32);
+
+    let mut hasher = Hasher::new();
+    hasher.update(data);
+
+    let hash = hasher.finalize();
+    if hash.as_bytes() != verify_data {
+        anyhow::bail!("校验码不匹配\n预期:{:?}\n实际:{:?}", hash.as_bytes(), verify_data);
+    }
+
+    let (data, data_len) = data.split_at(data.len() - 4);
+    let data_len = u32::from_le_bytes(data_len.try_into().unwrap()) as usize;
+
+    // 校验长度
+    if data_len > data.len() {
+        anyhow::bail!("长度不匹配 {} {}", data_len, data.len());
+    }
+
+    let (_, data) = data.split_at(data_len);
+    let data = std::str::from_utf8(data)?;
+
+    let config_value: toml::Value = toml::from_str(data)?;
+    println!("{:#?}", config_value);
+
+    Ok(())
+}
+
+
+fn main() -> anyhow::Result<()> {
+    let args = CliArg::parse();
+    
+    if args.check {
+        check_only(args)
+    } else {
+        todo!()
+    }
+
+}

src/reader.rs

@@ -29,7 +29,7 @@ pub fn read_self() -> Option<crate::config::RawConfig> {
         );
         return None;
     }
-    let (data, data_len) = data.split_at(4);
+    let (data, data_len) = data.split_at(data.len() - 4);
     let data_len = u32::from_le_bytes(data_len.try_into().unwrap()) as usize;
     // 校验长度
     // 长度不应大于 data.len()