feat: support pin entry file cmd

native-pkcs11-piv/src/piv/pinentry.rs

@@ -17,7 +17,9 @@ use std::{env, fs};
 use pinentry::PassphraseInput;
 use secrecy::ExposeSecret;
 
+const HOME_ENV: &str = "HOME";
 const PIN_ENTRY_ENV: &str = "PIN_ENTRY_CMD";
+const PIN_ENTRY_CMD_FILE: &str = ".pinentry.cmd";
 const PIN_ENTRY_1: &str = "/usr/local/MacGPG2/libexec/pinentry-mac.app/Contents/MacOS/pinentry-mac";
 const PIN_ENTRY_DEFAULT: &str = "pinentry";
 
@@ -56,6 +58,11 @@ fn get_pin_entry() -> String {
     if let Ok(pin_entry) = env::var(PIN_ENTRY_ENV) {
         return pin_entry;
     }
+    if let Ok(home) = env::var(HOME_ENV) {
+        if let Ok(pin_entry_cmd) = fs::read_to_string(format!("{}/{}", home, PIN_ENTRY_CMD_FILE)) {
+            return pin_entry_cmd.trim().to_string();
+        }
+    }
     if let Ok(m) = fs::metadata(PIN_ENTRY_1) {
         if m.is_file() {
             return PIN_ENTRY_1.to_string();