Add git2 crate for Git integration of init subcommand

Cargo.toml

@@ -19,4 +19,5 @@ thiserror = "1.0.58"
 toml = "0.8.12"
 shulkerscript-lang = {path = "../shulkerscript-lang", features = ["shulkerbox"], default-features = false}
 shulkerbox = {path = "../shulkerbox", default-features = false}
+git2 = { version = "0.18.3", default-features = false }
 

src/error.rs

@@ -18,6 +18,8 @@ pub enum Error {
     InvalidPackPathError(PathBuf),
     #[error("An error occured while compiling the project.")]
     ShulkerScriptError(#[from] shulkerscript_lang::base::Error),
+    #[error("An error occured during a git action.")]
+    GitError(#[from] git2::Error),
 }
 
 pub type Result<T> = std::result::Result<T, Error>;

src/subcommands/init.rs

@@ -3,6 +3,9 @@ use std::{
     path::{Path, PathBuf},
 };
 
+use clap::ValueEnum;
+use git2::Repository;
+
 use crate::{
     config::ProjectConfig,
     error::{Error, Result},
@@ -27,6 +30,15 @@ pub struct InitArgs {
     /// Force initialization even if the directory is not empty.
     #[clap(short, long)]
     force: bool,
+    #[clap(long, default_value = "git")]
+    vcs: VersionControlSystem,
+}
+
+#[derive(Debug, Clone, Copy, Default, ValueEnum)]
+enum VersionControlSystem {
+    #[default]
+    Git,
+    None,
 }
 
 pub fn init(verbose: bool, args: &InitArgs) -> Result<()> {
@@ -72,6 +84,8 @@ pub fn init(verbose: bool, args: &InitArgs) -> Result<()> {
             verbose,
         )?;
 
+        initalize_vcs(path, args.vcs, verbose)?;
+
         print_success("Project initialized successfully.");
 
         Ok(())
@@ -165,6 +179,21 @@ fn create_main_file(path: &Path, namespace: &str, verbose: bool) -> std::io::Res
     Ok(())
 }
 
+fn initalize_vcs(path: &Path, vcs: VersionControlSystem, verbose: bool) -> Result<()> {
+    match vcs {
+        VersionControlSystem::None => Ok(()),
+        VersionControlSystem::Git => {
+            if verbose {
+                print_info("Initializing a new Git repository...");
+            }
+            Repository::init(path)?;
+            print_info("Initialized a new Git repository.");
+
+            Ok(())
+        }
+    }
+}
+
 fn name_to_namespace(name: &str) -> String {
     const VALID_CHARS: &str = "0123456789abcdefghijklmnopqrstuvwxyz_-.";