From 31c259271d4d02a3d5b59ffb51831ba31c7432dd Mon Sep 17 00:00:00 2001
From: Sridhar Ratnakumar <srid@srid.ca>
Date: Mon, 26 Jun 2023 15:24:39 -0400
Subject: [PATCH] Use a rust crate for demo

---
 Cargo.lock  | 110 +++++++++++++++++-----------------------------------
 Cargo.toml  |   2 +-
 src/main.rs |  24 ++++++------
 3 files changed, 48 insertions(+), 88 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 5318ae9..28057e3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,113 +1,73 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
-name = "ansi_term"
-version = "0.11.0"
+name = "argh"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
+checksum = "ab257697eb9496bf75526f0217b5ed64636a9cfafa78b8365c71bd283fcef93e"
 dependencies = [
- "winapi",
+ "argh_derive",
+ "argh_shared",
 ]
 
 [[package]]
-name = "atty"
-version = "0.2.14"
+name = "argh_derive"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+checksum = "b382dbd3288e053331f03399e1db106c9fb0d8562ad62cb04859ae926f324fa6"
 dependencies = [
- "hermit-abi",
- "libc",
- "winapi",
+ "argh_shared",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
-name = "bitflags"
-version = "1.2.1"
+name = "argh_shared"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
+checksum = "64cb94155d965e3d37ffbbe7cc5b82c3dd79dd33bd48e536f73d2cfb8d85506f"
 
 [[package]]
-name = "clap"
-version = "2.33.3"
+name = "proc-macro2"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002"
+checksum = "7b368fba921b0dce7e60f5e04ec15e565b3303972b42bcfde1d0713b881959eb"
 dependencies = [
- "ansi_term",
- "atty",
- "bitflags",
- "strsim",
- "textwrap",
- "unicode-width",
- "vec_map",
+ "unicode-ident",
 ]
 
 [[package]]
-name = "hermit-abi"
-version = "0.1.18"
+name = "quote"
+version = "1.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
+checksum = "1b9ab9c7eadfd8df19006f1cf1a4aed13540ed5cbc047010ece5826e10825488"
 dependencies = [
- "libc",
+ "proc-macro2",
 ]
 
-[[package]]
-name = "libc"
-version = "0.2.93"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9385f66bf6105b241aa65a61cb923ef20efc665cb9f9bb50ac2f0c4b7f378d41"
-
 [[package]]
 name = "rust-nix-template"
 version = "0.1.0"
 dependencies = [
- "clap",
+ "argh",
 ]
 
 [[package]]
-name = "strsim"
-version = "0.8.0"
+name = "syn"
+version = "1.0.109"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
-
-[[package]]
-name = "textwrap"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
 dependencies = [
- "unicode-width",
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
 ]
 
 [[package]]
-name = "unicode-width"
-version = "0.1.8"
+name = "unicode-ident"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
-
-[[package]]
-name = "vec_map"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
-
-[[package]]
-name = "winapi"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
-dependencies = [
- "winapi-i686-pc-windows-gnu",
- "winapi-x86_64-pc-windows-gnu",
-]
-
-[[package]]
-name = "winapi-i686-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-
-[[package]]
-name = "winapi-x86_64-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+checksum = "b15811caf2415fb889178633e7724bad2509101cde276048e013b9def5e51fa0"
diff --git a/Cargo.toml b/Cargo.toml
index a0b6d37..9152434 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,4 +8,4 @@ version = "0.1.0"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-clap = "2.33.3"
+argh = "0.1.10"
diff --git a/src/main.rs b/src/main.rs
index 25c12be..a6f5012 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,21 +1,21 @@
 use argh::FromArgs;
 
-#[derive(FromArgs)]
+#[derive(FromArgs, Debug)]
 /// Reach new heights.
-struct GoUp {
-    /// whether or not to jump
-    #[argh(switch, short = 'j')]
-    jump: bool,
+struct Config {
+    /// whether to be verbose
+    #[argh(switch, short = 'v')]
+    verbose: bool,
 
-    /// how high to go
+    /// an optional name to green
     #[argh(option)]
-    height: usize,
-
-    /// an optional nickname for the pilot
-    #[argh(option)]
-    pilot_nickname: Option<String>,
+    name: Option<String>,
 }
 
 fn main() {
-    let up: GoUp = argh::from_env();
+    let cfg: Config = argh::from_env();
+    if cfg.verbose {
+        println!("DEBUG {cfg:?}");
+    }
+    println!("Hello {}!", cfg.name.unwrap_or("world".to_string()));
 }