Add the arguments subcommand.

source/cli/mod.rs

@@ -19,6 +19,13 @@ pub struct Cli {
 /// The main subcommands.
 #[derive(Debug, Subcommand)]
 pub enum MainSubcommand {
+  /// The arguments subcommand.
+  Arguments {
+    /// The arguments subcommands.
+    #[command(subcommand)]
+    command: ArgumentsSubcommand,
+  },
+
   /// The log subcommand.
   Log {
     /// The data to log.
@@ -26,3 +33,18 @@ pub enum MainSubcommand {
     data_to_log: Vec<String>,
   },
 }
+
+/// The arguments subcommands.
+#[derive(Debug, Subcommand)]
+pub enum ArgumentsSubcommand {
+  /// Print the count of provided arguments.
+  Count {
+    /// The arguments to print the count of.
+    #[arg(last = true)]
+    arguments: Vec<String>,
+
+    /// Include a newline at the end of the number.
+    #[arg(short, long, default_value = "false")]
+    newline: bool,
+  },
+}

source/cli/run.rs

@@ -2,7 +2,7 @@
 
 use {
   crate::{
-    cli::{Cli, MainSubcommand::*, Parser},
+    cli::{ArgumentsSubcommand, Cli, MainSubcommand::*, Parser},
     logging::append_line_to_file,
   },
   chrono::{SecondsFormat, Utc},
@@ -13,6 +13,19 @@ pub fn run() {
   let cli = Cli::parse();
 
   match cli.command {
+    Arguments {
+      command: arguments_subcommand,
+    } => match arguments_subcommand {
+      ArgumentsSubcommand::Count { arguments, newline } => {
+        let mut count = format!("{}", arguments.len());
+        if newline {
+          count.push('\n');
+        }
+
+        print!("{}", count);
+      }
+    },
+
     Log { data_to_log } => {
       let log_line = format!(
         "{} {}",