Add a command to synchronise date of births

src/args.rs

@@ -1,3 +1,5 @@
+use std::path::PathBuf;
+
 use clap::{command, Parser, Subcommand};
 
 #[derive(Parser)]
@@ -9,12 +11,20 @@ pub(crate) struct Opts {
     #[arg(short, long)]
     pub api_key: String,
 
+    #[arg(short, long)]
+    pub dry_run: bool,
+
     #[command(subcommand)]
     pub command: Commands,
 }
 
 #[derive(Subcommand)]
 pub(crate) enum Commands {
+    /// People related commands
+    People {
+        #[command(subcommand)]
+        people_command: PeopleCommands,
+    },
     /// Server related commands
     Server {
         #[command(subcommand)]
@@ -22,6 +32,15 @@ pub(crate) enum Commands {
     },
 }
 
+#[derive(Subcommand)]
+pub(crate) enum PeopleCommands {
+    /// Synchronises date of births from a vcard file
+    SyncDateOfBirths {
+        #[arg(short, long)]
+        vcard_file: PathBuf,
+    },
+}
+
 #[derive(Subcommand)]
 pub(crate) enum ServerCommands {
     /// Fetches the version of the server