clap application is dumping a bunch of debug information

[jnials]

Not sure what I did to turn this on, but when I run my app, I'm getting a lot of low-leve debug output from the parser.

The app runs fine. Here's a sample from the top of the debug output....

/home/jnials/.cargo/bin/cargo run --color=always --package mm_tools --bin mm_tools -- -h
    Finished dev [unoptimized + debuginfo] target(s) in 0.08s
     Running `target/debug/mm_tools -h`
[clap_builder::builder::command]Command::_do_parse
[clap_builder::builder::command]Command::_build: name="mm_tools"
[clap_builder::builder::command]Command::_propagate:mm_tools
[clap_builder::builder::command]Command::_check_help_and_version:mm_tools expand_help_tree=false
[clap_builder::builder::command]Command::long_help_exists
[clap_builder::builder::command]Command::_check_help_and_version: Building default --help
[clap_builder::builder::command]Command::_check_help_and_version: Building default --version
[clap_builder::builder::command]Command::_check_help_and_version: Building help subcommand
[clap_builder::builder::command]Command::_propagate_global_args:mm_tools
[clap_builder::builder::debug_asserts]Command::_debug_asserts
[clap_builder::builder::debug_asserts]Arg::_debug_asserts:name
[clap_builder::builder::debug_asserts]Arg::_debug_asserts:config
[clap_builder::builder::debug_asserts]Arg::_debug_asserts:help
[clap_builder::builder::debug_asserts]Arg::_debug_asserts:version
[clap_builder::builder::debug_asserts]Command::_verify_positionals
[clap_builder::parser::parser]Parser::get_matches_with
[clap_builder::parser::parser]Parser::get_matches_with: Begin parsing '"-h"'
[clap_builder::parser::parser]Parser::possible_subcommand: arg=Ok("-h")
[clap_builder::parser::parser]Parser::get_matches_with: sc=None
[clap_builder::parser::parser]Parser::parse_short_arg: short_arg=ShortFlags { inner: "h", utf8_prefix: CharIndices { front_offset: 0, iter: Chars(['h']) }, invalid_suffix: None }
[clap_builder::parser::parser]Parser::parse_short_arg:iter:h
[clap_builder::parser::parser]Parser::parse_short_arg:iter:h: Found valid opt or flag
[clap_builder::parser::parser]Parser::react action=Help, identifier=Some(Short), source=CommandLine
[clap_builder::parser::parser]Help: use_long=false
[clap_builder::builder::command]Command::write_help_err: mm_tools, use_long=false
[  clap_builder::output::help]write_help

[epage]

Do you have a reproduction case for this?

That looks like the debug feature was enabled by something which is not meant for production use.

[jnials]

I stripped out anything specific to my app and re-ran it, same thing.

Here it is, it isn't long.

use std::error::Error;
use std::path::PathBuf;
use clap::{Parser,Subcommand};

#[derive(Parser)]
#[command(version, about, long_about = None)]
struct Cli {
    // Optional name to operate on
    name: Option<String>,

    /// Sets a custom config file
    #[arg(short, long, value_name = "FILE")]
    config: Option<PathBuf>,

    #[command(subcommand)]
    command: Option<Commands>,
}

#[derive(Subcommand)]
enum Commands {
    /// does testing things
    Test {
        /// lists test values
        #[arg(short, long)]
        list: bool,
    },
}
#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    let cli = Cli::parse();

    if let Some(name) = cli.name.as_deref() {
        println!("Value for name: {name}");
    }
    if let Some(config_path) = cli.config.as_deref() {
        println!("Value for config: {}", config_path.display());
    }
    Ok(())
}

[jnials]

oh, here's my Cargo.toml file as well:

[package]
name = "mm_tools"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
reqwest = { version = "0.11.24", features = ["blocking", "json"] }
tokio = { version = "1.36.0", features = ["rt", "rt-multi-thread", "macros"] }
serde = { version = "1.0.197", features = ["derive"] }
more-config = { version = "2.1.1", features = ["all", "async"] }
serde_json = "1.0.114"
serde_derive = "1.0.197"
mattermost_api = { version = "0.3.0"}

[dependencies.clap]
version = "4.5.2"
features = ["color", "derive", "help", "usage", "string", "debug", "wrap_help", "env"]

[epage]

How come you are enabling the debug feature? That is what is causing the output; it is not intended for production use.

[jnials]

Doh! This is what I get for cutting/pasting sample code. Sigh. I'm still learning rust and the ins and outs of the various Cargo features are still new to me. Sigh. Problem soved.