opgpcard: Extract factory_reset command into module

tools/src/bin/opgpcard/cli.rs

@@ -87,10 +87,7 @@ pub enum Command {
     },
 
     /// Completely reset a card (deletes all data, including the keys on the card!)
-    FactoryReset {
-        #[clap(name = "card ident", short = 'c', long = "card")]
-        ident: String,
-    },
+    FactoryReset(commands::factory_reset::FactoryResetCommand),
 
     /// Change identity (applies only to Nitrokey Start)
     SetIdentity {

tools/src/bin/opgpcard/commands/factory_reset.rs

@@ -0,0 +1,25 @@
+// SPDX-FileCopyrightText: 2021-2022 Heiko Schaefer <heiko@schaefer.name>
+// SPDX-FileCopyrightText: 2022 Nora Widdecke <mail@nora.pink>
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+use anyhow::{anyhow, Result};
+use clap::Parser;
+
+use openpgp_card_sequoia::card::Card;
+
+use crate::util;
+
+#[derive(Parser, Debug)]
+pub struct FactoryResetCommand {
+    #[clap(name = "card ident", short = 'c', long = "card")]
+    ident: String,
+}
+
+pub fn factory_reset(command: FactoryResetCommand) -> Result<()> {
+    println!("Resetting Card {}", command.ident);
+    let card = util::open_card(&command.ident)?;
+    let mut card = Card::new(card);
+
+    let mut open = card.transaction()?;
+    open.factory_reset().map_err(|e| anyhow!(e))
+}

tools/src/bin/opgpcard/commands/mod.rs

@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: MIT OR Apache-2.0
 
 pub mod decrypt;
+pub mod factory_reset;
 pub mod info;
 pub mod pubkey;
 pub mod sign;

tools/src/bin/opgpcard/main.rs

@@ -147,8 +147,8 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
                 }
             }
         },
-        cli::Command::FactoryReset { ident } => {
-            factory_reset(&ident)?;
+        cli::Command::FactoryReset(cmd) => {
+            commands::factory_reset::factory_reset(cmd)?;
         }
         cli::Command::Admin {
             ident,
@@ -579,15 +579,6 @@ fn pick_card_for_reading(ident: Option<String>) -> Result<Box<dyn CardBackend +
     }
 }
 
-fn factory_reset(ident: &str) -> Result<()> {
-    println!("Resetting Card {}", ident);
-    let card = util::open_card(ident)?;
-    let mut card = Card::new(card);
-
-    let mut open = card.transaction()?;
-    open.factory_reset().map_err(|e| anyhow!(e))
-}
-
 fn keys_pick_yolo<'a>(
     key: &'a Cert,
     policy: &'a dyn Policy,