1 files changed, 49 insertions, 0 deletions
diff --git a/cli/tools/init/mod.rs b/cli/tools/init/mod.rs
new file mode 100644
index 000000000..e47b88702
--- /dev/null
+++ b/cli/tools/init/mod.rs
@@ -0,0 +1,49 @@
+// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
+
+use crate::args::InitFlags;
+use crate::compat;
+use deno_core::{anyhow::Context, error::AnyError};
+use std::io::Write;
+use std::path::Path;
+
+fn create_file(
+  dir: &Path,
+  filename: &str,
+  content: &str,
+) -> Result<(), AnyError> {
+  let mut file = std::fs::OpenOptions::new()
+    .write(true)
+    .create_new(true)
+    .open(dir.join(filename))
+    .with_context(|| format!("Failed to create {} file", filename))?;
+  file.write_all(content.as_bytes())?;
+  Ok(())
+}
+
+pub async fn init_project(init_flags: InitFlags) -> Result<(), AnyError> {
+  let cwd =
+    std::env::current_dir().context("Can't read current working directory.")?;
+  let dir = if let Some(dir) = &init_flags.dir {
+    let dir = cwd.join(dir);
+    std::fs::create_dir_all(&dir)?;
+    dir
+  } else {
+    cwd
+  };
+
+  let main_ts = include_str!("./templates/main.ts");
+  create_file(&dir, "main.ts", main_ts)?;
+
+  let main_test_ts = include_str!("./templates/main_test.ts")
+    .replace("{CURRENT_STD_URL}", compat::STD_URL_STR);
+  create_file(&dir, "main_test.ts", &main_test_ts)?;
+
+  println!("✅ Project initialized");
+  println!("Run these commands to get started");
+  if let Some(dir) = init_flags.dir {
+    println!("  cd {}", dir);
+  }
+  println!("  deno run main.ts");
+  println!("  deno test");
+  Ok(())
+}