feat: Basic cli sketch

Cargo.toml

@@ -7,10 +7,8 @@ description = "Djot based static site generator"
 readme = "README.md"
 license = "MIT"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
-clap = { version = "4.1.8", features = ["derive"] }
+clap = { version = "4.1.8", features = ["derive", "env"] }
 color-eyre = "0.6.2"
 jotdown = "0.1.0"
 serde = { version = "1.0.156", features = ["derive"] }

src/bin/cli/init.rs

@@ -0,0 +1,22 @@
+use clap::Args;
+use color_eyre::eyre::Result;
+use tracing::instrument;
+
+use super::GlobalArgs;
+
+/// Arguments for the init subcommand
+#[derive(Args, Debug)]
+pub struct InitArgs {
+    /// Domain name to use
+    #[arg(long, short)]
+    pub doman_name: Option<String>,
+}
+
+impl InitArgs {
+    /// Run the init command
+    #[instrument]
+    pub fn run(self, _globals: GlobalArgs) -> Result<()> {
+        println!("Hello world!");
+        Ok(())
+    }
+}

src/bin/cli/mod.rs

@@ -0,0 +1,44 @@
+use clap::{Args, Parser, Subcommand};
+use color_eyre::eyre::Result;
+use std::path::PathBuf;
+
+mod init;
+
+pub use init::InitArgs;
+
+/// Djot based static site generator
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about=None)]
+pub struct Cli {
+    #[command(flatten)]
+    #[command(next_help_heading = "Global Options")]
+    pub global_args: GlobalArgs,
+    /// Command to run
+    #[command(subcommand)]
+    pub command: Command,
+}
+
+/// Global arguments to the command
+#[derive(Args, Debug)]
+pub struct GlobalArgs {
+    /// Path of the site source repository
+    #[arg(long, value_name = "SITE_PATH", env = "STRANGER_SITE_PATH")]
+    #[clap(global = true)]
+    pub site_path: Option<PathBuf>,
+}
+
+/// Command to run
+#[derive(Subcommand, Debug)]
+pub enum Command {
+    /// Initialize a site
+    Init(InitArgs),
+}
+
+impl Command {
+    /// Run the init command
+    pub fn run(self, globals: GlobalArgs) -> Result<()> {
+        match self {
+            Command::Init(args) => args.run(globals),
+        }
+    }
+}

src/bin/stranger_site_gen.rs

@@ -1,3 +1,15 @@
-fn main() {
-    println!("Hello world!");
+mod cli;
+
+use cli::Cli;
+
+use clap::Parser;
+use color_eyre::eyre::Result;
+
+fn main() -> Result<()> {
+    // Setup color eyre and logging
+    color_eyre::install()?;
+    tracing_subscriber::fmt::init();
+
+    let args = Cli::parse();
+    args.command.run(args.global_args)
 }