From 48f1825c98f3f2be2c5daf5f781fe009a47158b2 Mon Sep 17 00:00:00 2001
From: Jiahao XU <Jiahao_XU@outlook.com>
Date: Sun, 24 Jul 2022 19:03:55 +1000
Subject: [PATCH] Print out help when `crate_names` is empty
Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
---
src/main.rs | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/main.rs b/src/main.rs
index 8e250165..ab652f26 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,7 +7,7 @@ use std::{
time::{Duration, Instant},
};
-use clap::Parser;
+use clap::{AppSettings, Parser};
use log::{debug, error, info, warn, LevelFilter};
use miette::{miette, Result, WrapErr};
use simplelog::{ColorChoice, ConfigBuilder, TermLogger, TerminalMode};
@@ -20,7 +20,7 @@ use cargo_binstall::{binstall, *};
static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
#[derive(Debug, Parser)]
-#[clap(version, about = "Install a Rust binary... from binaries!")]
+#[clap(version, about = "Install a Rust binary... from binaries!", setting = AppSettings::ArgRequiredElseHelp)]
struct Options {
/// Package name for installation.
///