Add feature flag to disable the TUI

I don't think any users would ever want to do this, but it's helpful in dev when iterating and only the CLI is needed. Should speed up compilation a bit.

Cargo.toml

@@ -52,11 +52,16 @@ winnow = "0.6.16"
 anyhow = {workspace = true, features = ["backtrace"]}
 slumber_cli = {workspace = true}
 slumber_core = {workspace = true}
-slumber_tui = {workspace = true}
+slumber_tui = {workspace = true, optional = true}
 tokio = {workspace = true, features = ["macros", "rt-multi-thread"]}
 tracing = {workspace = true}
 tracing-subscriber = {version = "0.3.17", default-features = false, features = ["ansi", "fmt", "registry"]}
 
+[features]
+default = ["tui"]
+# TUI can be disabled in dev to speed compilation while testing CLI
+tui = ["dep:slumber_tui"]
+
 # The profile that 'cargo dist' will build with
 [profile.dist]
 inherits = "release"

crates/cli/src/lib.rs

@@ -22,18 +22,14 @@ use std::{path::PathBuf, process::ExitCode};
 
 const COMMAND_NAME: &str = "slumber";
 
+/// Configurable HTTP client with both TUI and CLI interfaces
+///
+/// If subcommand is omitted, start the TUI.
 #[derive(Debug, Parser)]
-#[clap(
-    author,
-    version,
-    about,
-    name = COMMAND_NAME,
-    long_about = "Configurable HTTP client with both TUI and CLI interfaces"
-)]
+#[clap(author, version, about, name = COMMAND_NAME)]
 pub struct Args {
     #[command(flatten)]
     pub global: GlobalArgs,
-    /// Subcommand to execute. If omitted, run the TUI
     #[command(subcommand)]
     pub subcommand: Option<CliCommand>,
 }

src/main.rs

@@ -4,7 +4,6 @@
 use anyhow::Context;
 use slumber_cli::Args;
 use slumber_core::util::{paths, ResultTraced};
-use slumber_tui::Tui;
 use std::{
     fs::{self, File, OpenOptions},
     io,
@@ -23,12 +22,16 @@ async fn main() -> anyhow::Result<ExitCode> {
 
     // Select mode based on whether request ID(s) were given
     match args.subcommand {
-        // Run the TUI
+        // Run the TUI. TUI can be disabled so we don't have to compile it while
+        // testing the CLI
+        #[cfg(feature = "tui")]
         None => {
-            // This should return the error so we get a full stack trac
-            Tui::start(args.global.file).await?;
+            // This should return the error so we get a full stack trace
+            slumber_tui::Tui::start(args.global.file).await?;
             Ok(ExitCode::SUCCESS)
         }
+        #[cfg(not(feature = "tui"))]
+        None => Err(anyhow::anyhow!("TUI feature is disabled")),
 
         // Execute one request without a TUI
         Some(subcommand) => Ok(subcommand