chore: ezkl self update (#809)

Cargo.lock

@@ -1878,6 +1878,7 @@ dependencies = [
  "rand 0.8.5",
  "regex",
  "reqwest",
+ "semver 1.0.22",
  "seq-macro",
  "serde",
  "serde-wasm-bindgen",

Cargo.toml

@@ -45,6 +45,7 @@ num = "0.4.1"
 portable-atomic = "1.6.0"
 tosubcommand = { git = "https://github.com/zkonduit/enum_to_subcommand", package = "tosubcommand" }
 metal = { git = "https://github.com/gfx-rs/metal-rs", optional = true }
+semver = "1.0.22"
 
 # evm related deps
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]

install_ezkl_cli.sh

@@ -99,6 +99,10 @@ fi
 echo "Removing old ezkl binary if it exists"
 [ -e file ] && rm file
 
+# echo platform and architecture
+echo "Platform: $PLATFORM"
+echo "Architecture: $ARCHITECTURE"
+
 # download the release and unpack the right tarball
 if [ "$PLATFORM" == "windows-msvc" ]; then
     JSON_RESPONSE=$(curl -s "$RELEASE_URL")

src/bin/ezkl.rs

@@ -17,17 +17,14 @@ use rand::prelude::SliceRandom;
 #[cfg(not(target_arch = "wasm32"))]
 #[cfg(feature = "icicle")]
 use std::env;
-#[cfg(not(target_arch = "wasm32"))]
-use std::error::Error;
 
 #[tokio::main(flavor = "current_thread")]
 #[cfg(not(target_arch = "wasm32"))]
-pub async fn main() -> Result<(), Box<dyn Error>> {
+pub async fn main() {
     let args = Cli::parse();
 
     if let Some(generator) = args.generator {
         ezkl::commands::print_completions(generator, &mut Cli::command());
-        Ok(())
     } else if let Some(command) = args.command {
         init_logger();
         #[cfg(not(any(target_arch = "wasm32", feature = "no-banner")))]
@@ -38,15 +35,17 @@ pub async fn main() -> Result<(), Box<dyn Error>> {
         } else {
             info!("Running with CPU");
         }
-        info!("command: \n {}", &command.as_json().to_colored_json_auto()?);
+        info!(
+            "command: \n {}",
+            &command.as_json().to_colored_json_auto().unwrap()
+        );
         let res = run(command).await;
         match &res {
             Ok(_) => info!("succeeded"),
             Err(e) => error!("failed: {}", e),
         };
-        res.map(|_| ())
     } else {
-        Err("No command provided".into())
+        error!("no command provided");
     }
 }
 

src/commands.rs

@@ -868,6 +868,12 @@ pub enum Commands {
         #[arg(long, value_hint = clap::ValueHint::Other)]
         addr_vk: Option<H160Flag>,
     },
+    /// Updates ezkl binary to version specified (or latest if not specified)
+    Update {
+        /// The version to update to
+        #[arg(value_hint = clap::ValueHint::Other, short='v', long)]
+        version: Option<String>,
+    },
 }
 
 

src/execute.rs

@@ -502,6 +502,52 @@ pub async fn run(command: Commands) -> Result<String, Box<dyn Error>> {
             )
             .await
         }
+        Commands::Update { version } => update_ezkl_binary(&version).map(|e| e.to_string()),
+    }
+}
+
+/// Assert that the version is valid
+fn assert_version_is_valid(version: &str) -> Result<(), Box<dyn Error>> {
+    let err_string = "Invalid version string. Must be in the format v0.0.0";
+    if version.is_empty() {
+        return Err(err_string.into());
+    }
+    // safe to unwrap since we know the length is not 0
+    if version.chars().nth(0).unwrap() != 'v' {
+        return Err(err_string.into());
+    }
+
+    semver::Version::parse(&version[1..])
+        .map_err(|_| "Invalid version string. Must be in the format v0.0.0")?;
+
+    Ok(())
+}
+
+const INSTALL_BYTES: &[u8] = include_bytes!("../install_ezkl_cli.sh");
+
+fn update_ezkl_binary(version: &Option<String>) -> Result<String, Box<dyn Error>> {
+    // run the install script with the version
+    let install_script = std::str::from_utf8(INSTALL_BYTES)?;
+    //  now run as sh script with the version as an argument
+    let mut command = std::process::Command::new("sh");
+    let mut command = command.arg("-c").arg(install_script);
+
+    if let Some(version) = version {
+        assert_version_is_valid(version)?;
+        command = command.arg(version)
+    };
+    let output = command.output()?;
+
+    if output.status.success() {
+        info!("updated binary");
+        Ok("".to_string())
+    } else {
+        Err(format!(
+            "failed to update binary: {}, {}",
+            std::str::from_utf8(&output.stdout)?,
+            std::str::from_utf8(&output.stderr)?
+        )
+        .into())
     }
 }