setup CI

.github/workflows/ci.yaml

@@ -0,0 +1,22 @@
+name: CI
+
+on:
+  pull_request:
+  schedule: [ cron: "40 1 * * *" ]
+
+permissions:
+  contents: read
+
+env:
+  RUSTFLAGS: -Dwarnings
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo fmt -- --check
+      - run: cargo build

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cold-stat"
-version = "0.1.1"
+version = "0.1.2"
 edition = "2021"
 authors = ["TATSUNO Yasuhiro <[email protected]>"]
 license = "MIT"

README.md

@@ -1,6 +1,6 @@
 # cold-stat
 
-![Crates.io Version](https://img.shields.io/crates/v/cold-stat)
+[![Crates.io Version](https://img.shields.io/crates/v/cold-stat)](https://crates.io/crates/cold-stat)
 
 A CLI tool to statically analyze the initialization time, known as cold-start, of AWS Lambda functions.
 

src/lambda_invoker.rs

@@ -23,7 +23,7 @@ impl LambdaInvoker {
         }
     }
 
-    pub async fn iterate(&self, iterations: u8) -> Result<(), anyhow::Error> {
+    pub async fn iterate(&self, iterations: u16) -> Result<(), anyhow::Error> {
         let config = self.get_function_configuration().await?;
         let mut env = config
             .environment
@@ -110,12 +110,8 @@ impl LambdaInvoker {
             Some(last_update_status) => {
                 info!("Checking if last update is successful: {last_update_status}");
                 match last_update_status {
-                    LastUpdateStatus::Successful => {
-                        Ok(true)
-                    }
-                    LastUpdateStatus::Failed | LastUpdateStatus::InProgress => {
-                        Ok(false)
-                    }
+                    LastUpdateStatus::Successful => Ok(true),
+                    LastUpdateStatus::Failed | LastUpdateStatus::InProgress => Ok(false),
                     unknown => {
                         warn!("LastUpdateStatus unknown: {unknown}");
                         Err(anyhow!("Unknown LastUpdateStatus, fn config is {config:?}"))

src/main.rs

@@ -39,7 +39,7 @@ struct Args {
         default_value_t = 100,
         help = "Number of iterations to invoke the function. It is recommended to set 30 at least. Because the number of collected cold starts often is a bit shorter than the specified `ITERATIONS` due to eventual consistency of CloudWatch Logs."
     )]
-    iterations: u8,
+    iterations: u16,
 
     #[arg(
         short,