WIP - embed the init template files in the build

cmd/soroban-cli/Cargo.toml

@@ -105,6 +105,7 @@ ureq = {version = "2.9.1", features = ["json"]}
 
 tempfile = "3.8.1"
 toml_edit = "0.21.0"
+rust-embed = "8.2.0"
 # For hyper-tls
 [target.'cfg(unix)'.dependencies]
 openssl = { version = "0.10.55", features = ["vendored"] }

cmd/soroban-cli/src/commands/contract/init.rs

@@ -1,9 +1,11 @@
+use std::borrow::Cow;
 use std::fs::read_to_string;
 use std::path::Path;
 use std::{env, fs, io};
 
 use clap::builder::{PossibleValue, PossibleValuesParser, ValueParser};
 use clap::{Parser, ValueEnum};
+use rust_embed::RustEmbed;
 use serde::Deserialize;
 use std::num::NonZeroU32;
 use std::sync::atomic::AtomicBool;
@@ -127,6 +129,10 @@ impl Cmd {
     }
 }
 
+#[derive(RustEmbed)]
+#[folder = "src/utils/contract-init-template"]
+struct TemplateFiles;
+
 fn init(
     project_path: &Path,
     frontend_template: &String,
@@ -138,9 +144,11 @@ fn init(
         .join("utils")
         .join("contract-init-template");
 
+    println!("template_dir_path: {:?}", template_dir_path);
+
     // create a project dir, and copy the contents of the base template (contract-init-template) into it
     std::fs::create_dir_all(project_path)?;
-    copy_contents(template_dir_path.as_path(), project_path)?;
+    copy_template_files(project_path)?;
 
     if !check_internet_connection() {
         println!("⚠️  It doesn't look like you're connected to the internet. We're still able to initialize a new project, but additional examples and the frontend template will not be included.");
@@ -173,6 +181,24 @@ fn init(
     Ok(())
 }
 
+fn copy_template_files(project_path: &Path) -> Result<(), Error> {
+    // first create all of the nested directories
+    for file in TemplateFiles::iter() {
+        let to = project_path.join(file.as_ref());
+
+        fs::create_dir_all(&to.parent().unwrap())?;
+    }
+
+    // then copy the files
+    for file in TemplateFiles::iter() {
+        let to = project_path.join(file.as_ref());
+        let file_contents = TemplateFiles::get(file.as_ref()).unwrap().data;
+        let file_contents_as_utf8 = std::str::from_utf8(&file_contents).unwrap();
+        std::fs::write(to, file_contents_as_utf8);
+    }
+    Ok(())
+}
+
 fn copy_contents(from: &Path, to: &Path) -> Result<(), Error> {
     let contents_to_exclude_from_copy = [
         ".git",