Implement init command

Cargo.toml

@@ -4,8 +4,10 @@ version = "0.0.0"
 edition = "2021"
 
 [dependencies]
+anyhow = "1.0.95"
 clap = { version = "4.5.26", features = ["derive", "deprecated"] }
 directories = "6.0.0"
+gix = "0.69.1"
 
 [lints]
 rust.unsafe_code = { level = "forbid", priority = 1 }

src/commands.rs

@@ -0,0 +1,18 @@
+mod init;
+
+use clap::Parser;
+
+use crate::Environment;
+
+#[derive(Debug, Parser)]
+pub enum Command {
+    Init(init::Command),
+}
+
+impl Command {
+    pub fn run(self, env: &Environment) -> anyhow::Result<()> {
+        match self {
+            Self::Init(command) => command.run(env),
+        }
+    }
+}

src/commands/init.rs

@@ -0,0 +1,27 @@
+use std::fs;
+
+use anyhow::Context;
+use clap::Parser;
+
+use crate::Environment;
+
+/// Initialize the note repository.
+#[derive(Debug, Parser)]
+pub struct Command {}
+
+impl Command {
+    pub fn run(self, env: &Environment) -> anyhow::Result<()> {
+        let directory = env.repo_dir();
+
+        fs::create_dir_all(&directory)
+            .with_context(|| format!("Failed to create directory {}", directory.display()))
+            .context("Failed to initialize notes repo")?;
+
+        let repo = gix::init_bare(&directory)
+            .with_context(|| format!("Failed to initialize git repo at {}", directory.display()))
+            .context("Failed to initialize notes repo")?;
+
+        dbg!(repo);
+        Ok(())
+    }
+}

src/main.rs

@@ -1,16 +1,11 @@
+mod commands;
+
 use std::path::PathBuf;
 
 use clap::Parser;
 use directories::ProjectDirs;
 
-/// Initialize the note repository.
-#[derive(Debug, Parser)]
-struct CmdInit {}
-
-#[derive(Debug, Parser)]
-enum Command {
-    Init(CmdInit),
-}
+use crate::commands::Command;
 
 /// GedächtNAS - external storage for your brain.
 #[derive(Debug, Parser)]
@@ -23,6 +18,17 @@ struct Args {
     cmd: Command,
 }
 
+struct Environment {
+    config_file: PathBuf,
+    data_dir: PathBuf,
+}
+
+impl Environment {
+    fn repo_dir(&self) -> PathBuf {
+        self.data_dir.join("notes.git")
+    }
+}
+
 fn main() {
     let args = Args::parse();
     let dirs = ProjectDirs::from("de", "plugh", env!("CARGO_PKG_NAME")).unwrap();
@@ -31,8 +37,19 @@ fn main() {
         .config
         .unwrap_or_else(|| dirs.config_dir().join("config.toml"));
 
-    let data_dir = dirs.data_dir();
+    let data_dir = dirs.data_dir().to_path_buf();
 
     println!("Config file: {}", config_file.display());
     println!("Data dir:    {}", data_dir.display());
+
+    let env = Environment {
+        config_file,
+        data_dir,
+    };
+
+    if let Err(err) = args.cmd.run(&env) {
+        println!();
+        eprintln!("{err:?}");
+        std::process::exit(1);
+    }
 }