feat: wait for password-command to exit

useful for commands that requires interactive input

crates/rustic_core/src/repository.rs

@@ -3,7 +3,7 @@ use std::{
     fs::File,
     io::{BufRead, BufReader},
     path::PathBuf,
-    process::Command,
+    process::{Command, Stdio},
 };
 
 use bytes::Bytes;
@@ -106,7 +106,7 @@ pub struct RepositoryOptions {
     )]
     pub password_file: Option<PathBuf>,
 
-    /// Command to read the password from
+    /// Command to read the password from. Password is read from stdout
     #[cfg_attr(feature = "clap", clap(
         long,
         global = true,
@@ -267,7 +267,11 @@ impl<P> Repository<P> {
                     .map_err(RepositoryErrorKind::FromNomError)?
                     .1;
                 debug!("commands: {commands:?}");
-                let Ok(output) = Command::new(commands[0]).args(&commands[1..]).output() else {
+                let command = Command::new(commands[0])
+                    .args(&commands[1..])
+                    .stdout(Stdio::piped())
+                    .spawn()?;
+                let Ok(output) = command.wait_with_output() else {
                         return Err(
                             RepositoryErrorKind::PasswordCommandParsingFailed.into());
                     };