Initial Commit.

src/cli.rs

@@ -0,0 +1,59 @@
+use std::sync::LazyLock;
+
+use clap::{ArgAction, Parser, Subcommand};
+
+pub static CONFIG: LazyLock<Args> = LazyLock::new(|| Args::parse());
+
+#[derive(Debug, Parser)]
+pub struct Args {
+    #[command(subcommand)]
+    pub command: Command,
+}
+
+#[derive(Debug, Subcommand)]
+pub enum Command {
+    /// Create a new raven project
+    New { project_name: String },
+    /// Create a new raven project in an existing directory
+    Init,
+    /// Compile the current project
+    Build,
+    /// Run the current project
+    #[command(arg_required_else_help = true)]
+    Run {
+        #[arg(required = true)]
+        entry_point: String,
+
+        #[clap(flatten)]
+        assertions: Assertions,
+    },
+    /// Run the tests
+    Test {
+        #[clap(flatten)]
+        assertions: Assertions,
+    },
+    /// Remove the target directory
+    Clean,
+}
+
+impl Command {
+    pub fn depends_on_nest(&self) -> bool {
+        match self {
+            Self::Init | Self::New { .. } => false,
+            _ => true,
+        }
+    }
+}
+
+#[derive(Debug, clap::Args)]
+pub struct Assertions {
+    /// Disable assertions.
+    #[arg(short, long = "no-assert", action = ArgAction::SetFalse)]
+    disable_assert: bool,
+}
+
+impl Into<bool> for &Assertions {
+    fn into(self) -> bool {
+        !self.disable_assert
+    }
+}