feat: scaffold CLI with fetch and render-md subcommands

src/cli.rs

@@ -0,0 +1,41 @@
+use clap::{Parser, Subcommand, ValueEnum};
+use std::path::PathBuf;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, ValueEnum)]
+pub enum OutputFormat {
+    Markdown,
+    Json,
+}
+
+#[derive(Debug, Parser)]
+#[command(name = "gitea-pr-review")]
+pub struct Cli {
+    #[command(subcommand)]
+    pub command: Commands,
+}
+
+#[derive(Debug, Subcommand)]
+pub enum Commands {
+    Fetch(FetchArgs),
+    RenderMd(RenderMdArgs),
+}
+
+#[derive(Debug, clap::Args)]
+pub struct FetchArgs {
+    pub pr_index: i64,
+
+    #[arg(long, value_enum, default_value_t = OutputFormat::Markdown)]
+    pub format: OutputFormat,
+
+    #[arg(long)]
+    pub out: Option<PathBuf>,
+}
+
+#[derive(Debug, clap::Args)]
+pub struct RenderMdArgs {
+    #[arg(long = "in")]
+    pub input: PathBuf,
+
+    #[arg(long)]
+    pub out: Option<PathBuf>,
+}

src/lib.rs

@@ -0,0 +1,5 @@
+pub mod cli;
+
+pub fn run() -> anyhow::Result<()> {
+    Ok(())
+}

src/main.rs

@@ -1,3 +1,3 @@
-fn main() {
-    println!("Hello, world!");
+fn main() -> anyhow::Result<()> {
+    gitea_pr_review::run()
 }