👏 👏 👏 👏

Cargo.toml

@@ -18,8 +18,8 @@ rust-version = "1.86"
 anyhow = { workspace = true }
 async-trait = { workspace = true }
 bytes = { workspace = true }
-# 'deprecated' enables deprecation warnings
-clap = { workspace = true, features = ["deprecated", "derive", "env"] }
+clap = { workspace = true, features = ["derive", "env", "string", "wrap_help"] }
+clap_lex = "0.7.5"
 clearscreen = "4"
 comfy-table = "7"
 command-group = "2"
@@ -125,7 +125,7 @@ async-trait = "0.1"
 base64 = "0.22"
 bytes = "1"
 chrono = "0.4"
-clap = "3.2"
+clap = "4.5.45"
 conformance-tests = { git = "https://github.com/fermyon/conformance-tests", rev = "61f2799f92b5d85f342cc07e3f5dec5cd0a7bc9c" }
 ctrlc = { version = "3.4", features = ["termination"] }
 dialoguer = "0.11"

crates/common/Cargo.toml

@@ -6,6 +6,7 @@ edition = { workspace = true }
 
 [dependencies]
 anyhow = { workspace = true }
+clap = { workspace = true }
 dirs = { workspace = true }
 sha2 = { workspace = true }
 tempfile = { workspace = true }

crates/common/src/cli.rs

@@ -0,0 +1,10 @@
+//! Common CLI code and constants
+
+use clap::builder::{styling::AnsiColor, Styles};
+
+/// Clap [`Styles`] for Spin CLI and plugins.
+pub const CLAP_STYLES: Styles = Styles::styled()
+    .header(AnsiColor::Yellow.on_default())
+    .usage(AnsiColor::Green.on_default())
+    .literal(AnsiColor::Green.on_default())
+    .placeholder(AnsiColor::Green.on_default());

crates/common/src/lib.rs

@@ -9,6 +9,7 @@
 // - Code should have at least 2 dependents
 
 pub mod arg_parser;
+pub mod cli;
 pub mod data_dir;
 pub mod paths;
 pub mod sha256;

crates/expressions/src/template.rs

@@ -98,10 +98,7 @@ mod tests {
             let template = Template::new(tmpl).unwrap();
             assert!(
                 template.parts().eq(&expected),
-                "{:?} -> {:?} != {:?}",
-                tmpl,
-                template,
-                expected,
+                "{tmpl:?} -> {template:?} != {expected:?}",
             );
         }
     }

crates/trigger-http/src/lib.rs

@@ -44,11 +44,11 @@ pub struct CliArgs {
     pub address: SocketAddr,
 
     /// The path to the certificate to use for https, if this is not set, normal http will be used. The cert should be in PEM format
-    #[clap(long, env = "SPIN_TLS_CERT", requires = "tls-key")]
+    #[clap(long, env = "SPIN_TLS_CERT", requires = "tls_key")]
     pub tls_cert: Option<PathBuf>,
 
     /// The path to the certificate key to use for https, if this is not set, normal http will be used. The key should be in PKCS#8 format
-    #[clap(long, env = "SPIN_TLS_KEY", requires = "tls-cert")]
+    #[clap(long, env = "SPIN_TLS_KEY", requires = "tls_cert")]
     pub tls_key: Option<PathBuf>,
 
     #[clap(long = "find-free-port")]

crates/trigger/Cargo.toml

@@ -16,7 +16,7 @@ unsafe-aot-compilation = []
 
 [dependencies]
 anyhow = { workspace = true }
-clap = { workspace = true, features = ["derive", "env"] }
+clap = { workspace = true, features = ["derive", "env", "wrap_help"] }
 ctrlc = { workspace = true }
 futures = { workspace = true }
 sanitize-filename = "0.5"

crates/trigger/src/cli.rs

@@ -9,7 +9,7 @@ use std::path::PathBuf;
 use std::{future::Future, sync::Arc};
 
 use anyhow::{Context, Result};
-use clap::{Args, IntoApp, Parser};
+use clap::{Args, CommandFactory, Parser};
 use spin_app::App;
 use spin_common::sloth;
 use spin_common::ui::quoted_path;
@@ -41,6 +41,7 @@ pub const SPIN_WORKING_DIR: &str = "SPIN_WORKING_DIR";
 /// A command that runs a TriggerExecutor.
 #[derive(Parser, Debug)]
 #[clap(
+    styles = spin_common::cli::CLAP_STYLES,
     override_usage = "spin [COMMAND] [OPTIONS]",
     next_help_heading = help_heading::<T, B::Factors>()
 )]
@@ -68,7 +69,6 @@ pub struct FactorsTriggerCommand<T: Trigger<B::Factors>, B: RuntimeFactorsBuilde
         long = "disable-cache",
         env = DISABLE_WASMTIME_CACHE,
         conflicts_with = WASMTIME_CACHE_FILE,
-        takes_value = false,
     )]
     pub disable_cache: bool,
 
@@ -287,9 +287,9 @@ fn warn_if_wasm_build_slothful() -> sloth::SlothGuard {
 
 fn help_heading<T: Trigger<F>, F: RuntimeFactors>() -> Option<&'static str> {
     if T::TYPE == <help::HelpArgsOnlyTrigger as Trigger<F>>::TYPE {
-        Some("TRIGGER OPTIONS")
+        Some("Trigger Options")
     } else {
-        let heading = format!("{} TRIGGER OPTIONS", T::TYPE.to_uppercase());
+        let heading = format!("{} Trigger Options", T::TYPE.to_uppercase());
         let as_str = Box::new(heading).leak();
         Some(as_str)
     }