feat: init git repo

src/commands/new/parachain.rs

@@ -1,5 +1,6 @@
 use crate::{
 	engines::parachain_engine::{instantiate_template_dir, Config},
+	helpers::git_init,
 	style::{style, Theme},
 };
 use clap::{Args, Parser};
@@ -77,6 +78,11 @@ impl NewParachainCommand {
 				initial_endowment: self.initial_endowment.clone().expect("default values"),
 			},
 		)?;
+		if let Err(err) = git_init(destination_path, "initialized parachain") {
+			if err.class() == git2::ErrorClass::Config && err.code() == git2::ErrorCode::NotFound {
+				outro_cancel("git signature could not be found. Please configure your git config with your name and email")?;
+			}
+		}
 		spinner.stop("Generation complete");
 		outro(format!("cd into \"{}\" and enjoy hacking! 🚀", &self.name))?;
 		Ok(())
@@ -85,6 +91,9 @@ impl NewParachainCommand {
 
 #[cfg(test)]
 mod tests {
+
+	use git2::Repository;
+
 	use super::*;
 	use std::fs;
 
@@ -100,6 +109,11 @@ mod tests {
 		let result = command.execute();
 		assert!(result.is_ok());
 
+		// check for git_init
+		let repo = Repository::open(Path::new(&command.name))?;
+		let reflog = repo.reflog("HEAD")?;
+		assert_eq!(reflog.len(), 1);
+
 		// Clean up
 		if let Err(err) = fs::remove_dir_all("test_parachain") {
 			eprintln!("Failed to delete directory: {}", err);

src/helpers.rs

@@ -1,6 +1,6 @@
 use anyhow::Result;
 use cliclack::{log, outro_cancel};
-use git2::Repository;
+use git2::{IndexAddOption, Repository, ResetType};
 use std::{
 	env::current_dir,
 	fs::{self, OpenOptions},
@@ -50,6 +50,24 @@ pub(crate) fn clone_and_degit(url: &str, target: &Path) -> Result<()> {
 	Ok(())
 }
 
+/// Init a new git repo on creation of a parachain
+pub(crate) fn git_init(target: &Path, message: &str) -> Result<(), git2::Error> {
+	let repo = Repository::init(target)?;
+	let signature = repo.signature()?;
+
+	let mut index = repo.index()?;
+	index.add_all(["*"].iter(), IndexAddOption::DEFAULT, None)?;
+	let tree_id = index.write_tree()?;
+
+	let tree = repo.find_tree(tree_id)?;
+	let commit_id = repo.commit(Some("HEAD"), &signature, &signature, message, &tree, &[])?;
+
+	let commit_object = repo.find_object(commit_id, Some(git2::ObjectType::Commit))?;
+	repo.reset(&commit_object, ResetType::Hard, None)?;
+
+	Ok(())
+}
+
 /// Resolve pallet path
 /// For a template it should be `<template>/pallets/`
 /// For no path, it should just place it in the current working directory