Port to Clap

3 files changed, 207 insertions, 134 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 5a40b6f..e5b8553 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,20 +4,62 @@ version = 3
 
 [[package]]
 name = "aho-corasick"
-version = "1.0.4"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6748e8def348ed4d14996fa801f4122cd763fff530258cdc03f64b25f89d3a5a"
+checksum = "0c378d78423fdad8089616f827526ee33c19f2fddbd5de1629152c9593ba4783"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
+name = "anstream"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1f58811cfac344940f1a400b6e6231ce35171f614f26439e80f8c1465c5cc0c"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "utf8parse",
+]
+
+[[package]]
 name = "anstyle"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "15c4c2c83f81532e5845a733998b6971faca23490340a418e9b72a3ec9de12ea"
 
 [[package]]
+name = "anstyle-parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "938874ff5980b03a87c5524b3ae5b59cf99b1d6bc836848df7bc5ada9643c333"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ca11d4be1bab0c8bc8734a9aa7bf4ee8316d462a08c6ac5052f888fef5b494b"
+dependencies = [
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58f54d10c6dfa51283a066ceab3ec1ab78d13fae00aa49243a45e4571fb79dfd"
+dependencies = [
+ "anstyle",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
 name = "argh"
 version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -77,9 +119,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bstr"
-version = "1.6.0"
+version = "1.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6798148dccfbff0fae41c7574d2fa8f1ef3492fba0face179de5d8d447d67b05"
+checksum = "4c2f7349907b712260e64b0afe2f84692af14a454be26187d9df565c7f69266a"
 dependencies = [
  "memchr",
  "regex-automata",
@@ -99,6 +141,52 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
+name = "clap"
+version = "4.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a13b88d2c62ff462f88e4a121f17a82c1af05693a2f192b5c38d14de73c19f6"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2bb9faaa7c2ef94b2743a21f5a29e6f0010dff4caa69ac8e9d6cf8b6fa74da08"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0862016ff20d69b84ef8247369fabf5c008a7417002411897d40ee1f4532b873"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd7cc57abe963c6d3b9d8be5b06ba7c8957a930305ca90304f24ef040aa6f961"
+
+[[package]]
+name = "colorchoice"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
+
+[[package]]
 name = "console"
 version = "0.15.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -210,6 +298,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2c6201b9ff9fd90a5a3bac2e56a830d0caa509576f0e503818ee82c181b3437a"
 
 [[package]]
+name = "heck"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+
+[[package]]
 name = "home"
 version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -330,9 +424,9 @@ checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
 [[package]]
 name = "memchr"
-version = "2.5.0"
+version = "2.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+checksum = "8f232d6ef707e1956a43342693d2a31e72989554d58299d7a88738cc95b0d35c"
 
 [[package]]
 name = "mio"
@@ -493,9 +587,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.9.4"
+version = "1.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12de2eff854e5fa4b1295edd650e227e9d8fb0c9e90b12e7f36d6a6811791a29"
+checksum = "697061221ea1b4a94a624f67d0ae2bfe4e22b8a17b6a192afb11046542cc8c47"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -505,9 +599,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.3.7"
+version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49530408a136e16e5b486e883fbb6ba058e8e4e8ae6621a77b048b314336e629"
+checksum = "c2f401f4955220693b56f8ec66ee9c78abffd8d1c4f23dc41a23839eb88f0795"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -526,6 +620,7 @@ version = "5.5.1"
 dependencies = [
  "argh",
  "assert_cmd",
+ "clap",
  "console",
  "glob",
  "home",
@@ -603,10 +698,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
+[[package]]
 name = "syn"
-version = "2.0.29"
+version = "2.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c324c494eba9d92503e6f1ef2e6df781e78f6a7705a0202d9801b198807d518a"
+checksum = "718fa2415bcb8d8bd775917a1bf12a7931b6dfa890753378538118181e0cb398"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -666,6 +767,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
 
 [[package]]
+name = "utf8parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+
+[[package]]
 name = "wait-timeout"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/Cargo.toml b/Cargo.toml
index f627dd7..2c2a92b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,15 +10,16 @@ edition = "2021"
 
 [dependencies]
 argh = "0.1"
-indicatif = "0.17"
+indicatif = "0.17.6"
 console = "0.15"
 notify = "4.0"
-toml = "0.7"
-regex = "1.9"
+toml = "0.7.6"
+regex = "1.5"
 serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0.105"
-home = "0.5.5"
-glob = "0.3.1"
+serde_json = "1.0.81"
+home = "0.5.3"
+glob = "0.3.0"
+clap = { version = "4.4.0", features = ["derive"] }
 
 [[bin]]
 name = "rustlings"
@@ -27,4 +28,4 @@ path = "src/main.rs"
 [dev-dependencies]
 assert_cmd = "2.0.12"
 predicates = "3.0.3"
-glob = "0.3.1"
+glob = "0.3.0"
diff --git a/src/main.rs b/src/main.rs
index 1a15086..a4b764d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,7 +2,7 @@ use crate::exercise::{Exercise, ExerciseList};
 use crate::project::RustAnalyzerProject;
 use crate::run::{reset, run};
 use crate::verify::verify;
-use argh::FromArgs;
+use clap::{Parser, Subcommand};
 use console::Emoji;
 use notify::DebouncedEvent;
 use notify::{RecommendedWatcher, RecursiveMode, Watcher};
@@ -25,111 +25,69 @@ mod project;
 mod run;
 mod verify;
 
-// In sync with crate version
-const VERSION: &str = "5.5.1";
-
-#[derive(FromArgs, PartialEq, Debug)]
 /// Rustlings is a collection of small exercises to get you used to writing and reading Rust code
+#[derive(Parser)]
+#[command(version)]
 struct Args {
-    /// show outputs from the test exercises
-    #[argh(switch)]
+    /// Show outputs from the test exercises
+    #[arg(long)]
     nocapture: bool,
-    /// show the executable version
-    #[argh(switch, short = 'v')]
-    version: bool,
-    #[argh(subcommand)]
-    nested: Option<Subcommands>,
+    #[command(subcommand)]
+    command: Option<Subcommands>,
 }
 
-#[derive(FromArgs, PartialEq, Debug)]
-#[argh(subcommand)]
+#[derive(Subcommand)]
 enum Subcommands {
-    Verify(VerifyArgs),
-    Watch(WatchArgs),
-    Run(RunArgs),
-    Reset(ResetArgs),
-    Hint(HintArgs),
-    List(ListArgs),
-    Lsp(LspArgs),
-}
-
-#[derive(FromArgs, PartialEq, Debug)]
-#[argh(subcommand, name = "verify")]
-/// Verifies all exercises according to the recommended order
-struct VerifyArgs {}
-
-#[derive(FromArgs, PartialEq, Debug)]
-#[argh(subcommand, name = "watch")]
-/// Reruns `verify` when files were edited
-struct WatchArgs {
-    /// show hints on success
-    #[argh(switch)]
-    success_hints: bool,
-}
-
-#[derive(FromArgs, PartialEq, Debug)]
-#[argh(subcommand, name = "run")]
-/// Runs/Tests a single exercise
-struct RunArgs {
-    #[argh(positional)]
-    /// the name of the exercise
-    name: String,
-}
-
-#[derive(FromArgs, PartialEq, Debug)]
-#[argh(subcommand, name = "reset")]
-/// Resets a single exercise using "git stash -- <filename>"
-struct ResetArgs {
-    #[argh(positional)]
-    /// the name of the exercise
-    name: String,
-}
-
-#[derive(FromArgs, PartialEq, Debug)]
-#[argh(subcommand, name = "hint")]
-/// Returns a hint for the given exercise
-struct HintArgs {
-    #[argh(positional)]
-    /// the name of the exercise
-    name: String,
-}
-
-#[derive(FromArgs, PartialEq, Debug)]
-#[argh(subcommand, name = "lsp")]
-/// Enable rust-analyzer for exercises
-struct LspArgs {}
-
-#[derive(FromArgs, PartialEq, Debug)]
-#[argh(subcommand, name = "list")]
-/// Lists the exercises available in Rustlings
-struct ListArgs {
-    #[argh(switch, short = 'p')]
-    /// show only the paths of the exercises
-    paths: bool,
-    #[argh(switch, short = 'n')]
-    /// show only the names of the exercises
-    names: bool,
-    #[argh(option, short = 'f')]
-    /// provide a string to match exercise names
-    /// comma separated patterns are acceptable
-    filter: Option<String>,
-    #[argh(switch, short = 'u')]
-    /// display only exercises not yet solved
-    unsolved: bool,
-    #[argh(switch, short = 's')]
-    /// display only exercises that have been solved
-    solved: bool,
+    /// Verify all exercises according to the recommended order
+    Verify,
+    /// Rerun `verify` when files were edited
+    Watch {
+        /// Show hints on success
+        #[arg(long)]
+        success_hints: bool,
+    },
+    /// Run/Test a single exercise
+    Run {
+        /// The name of the exercise
+        name: String,
+    },
+    /// Reset a single exercise using "git stash -- <filename>"
+    Reset {
+        /// The name of the exercise
+        name: String,
+    },
+    /// Return a hint for the given exercise
+    Hint {
+        /// The name of the exercise
+        name: String,
+    },
+    /// List the exercises available in Rustlings
+    List {
+        /// Show only the paths of the exercises
+        #[arg(short, long)]
+        paths: bool,
+        /// Show only the names of the exercises
+        #[arg(short, long)]
+        names: bool,
+        /// Provide a string to match exercise names.
+        /// Comma separated patterns are accepted
+        #[arg(short, long)]
+        filter: Option<String>,
+        /// Display only exercises not yet solved
+        #[arg(short, long)]
+        unsolved: bool,
+        /// Display only exercises that have been solved
+        #[arg(short, long)]
+        solved: bool,
+    },
+    /// Enable rust-analyzer for exercises
+    Lsp,
 }
 
 fn main() {
-    let args: Args = argh::from_env();
+    let args = Args::parse();
 
-    if args.version {
-        println!("v{VERSION}");
-        std::process::exit(0);
-    }
-
-    if args.nested.is_none() {
+    if args.command.is_none() {
         println!("\n{WELCOME}\n");
     }
 
@@ -153,17 +111,24 @@ fn main() {
     let exercises = toml::from_str::<ExerciseList>(toml_str).unwrap().exercises;
     let verbose = args.nocapture;
 
-    let command = args.nested.unwrap_or_else(|| {
+    let command = args.command.unwrap_or_else(|| {
         println!("{DEFAULT_OUT}\n");
         std::process::exit(0);
     });
+
     match command {
-        Subcommands::List(subargs) => {
-            if !subargs.paths && !subargs.names {
+        Subcommands::List {
+            paths,
+            names,
+            filter,
+            unsolved,
+            solved,
+        } => {
+            if !paths && !names {
                 println!("{:<17}\t{:<46}\t{:<7}", "Name", "Path", "Status");
             }
             let mut exercises_done: u16 = 0;
-            let filters = subargs.filter.clone().unwrap_or_default().to_lowercase();
+            let filters = filter.clone().unwrap_or_default().to_lowercase();
             exercises.iter().for_each(|e| {
                 let fname = format!("{}", e.path.display());
                 let filter_cond = filters
@@ -177,14 +142,14 @@ fn main() {
                     "Pending"
                 };
                 let solve_cond = {
-                    (e.looks_done() && subargs.solved)
-                        || (!e.looks_done() && subargs.unsolved)
-                        || (!subargs.solved && !subargs.unsolved)
+                    (e.looks_done() && solved)
+                        || (!e.looks_done() && unsolved)
+                        || (!solved && !unsolved)
                 };
-                if solve_cond && (filter_cond || subargs.filter.is_none()) {
-                    let line = if subargs.paths {
+                if solve_cond && (filter_cond || filter.is_none()) {
+                    let line = if paths {
                         format!("{fname}\n")
-                    } else if subargs.names {
+                    } else if names {
                         format!("{}\n", e.name)
                     } else {
                         format!("{:<17}\t{fname:<46}\t{status:<7}\n", e.name)
@@ -214,30 +179,30 @@ fn main() {
             std::process::exit(0);
         }
 
-        Subcommands::Run(subargs) => {
-            let exercise = find_exercise(&subargs.name, &exercises);
+        Subcommands::Run { name } => {
+            let exercise = find_exercise(&name, &exercises);
 
             run(exercise, verbose).unwrap_or_else(|_| std::process::exit(1));
         }
 
-        Subcommands::Reset(subargs) => {
-            let exercise = find_exercise(&subargs.name, &exercises);
+        Subcommands::Reset { name } => {
+            let exercise = find_exercise(&name, &exercises);
 
             reset(exercise).unwrap_or_else(|_| std::process::exit(1));
         }
 
-        Subcommands::Hint(subargs) => {
-            let exercise = find_exercise(&subargs.name, &exercises);
+        Subcommands::Hint { name } => {
+            let exercise = find_exercise(&name, &exercises);
 
             println!("{}", exercise.hint);
         }
 
-        Subcommands::Verify(_subargs) => {
+        Subcommands::Verify => {
             verify(&exercises, (0, exercises.len()), verbose, false)
                 .unwrap_or_else(|_| std::process::exit(1));
         }
 
-        Subcommands::Lsp(_subargs) => {
+        Subcommands::Lsp => {
             let mut project = RustAnalyzerProject::new();
             project
                 .get_sysroot_src()
@@ -256,7 +221,7 @@ fn main() {
             }
         }
 
-        Subcommands::Watch(_subargs) => match watch(&exercises, verbose, _subargs.success_hints) {
+        Subcommands::Watch { success_hints } => match watch(&exercises, verbose, success_hints) {
             Err(e) => {
                 println!(
                     "Error: Could not watch your progress. Error message was {:?}.",