feat: add sub-command "config"

Sponsored-by: author

2 files changed, 17 insertions, 0 deletions

diff --git a/src/cmd/config.rs b/src/cmd/config.rs
new file mode 100644
index 0000000..996439b
--- /dev/null
+++ b/src/cmd/config.rs
@@ -0,0 +1,14 @@
+//! The `config` sub-command.
+
+use std::io::Write;
+
+use crate::config::Configuration;
+
+/// The `config` sub-command.
+///
+/// Write the actual run-time configuration to stdout.
+pub fn config(config: &Configuration) -> Result<(), std::io::Error> {
+    let config = serde_yaml::to_vec(&config).unwrap();
+    std::io::stdout().write_all(&config)?;
+    Ok(())
+}
diff --git a/src/cmd/mod.rs b/src/cmd/mod.rs
index 8ae8f70..490cdc4 100644
--- a/src/cmd/mod.rs
+++ b/src/cmd/mod.rs
@@ -20,3 +20,6 @@ pub use shutdown::shutdown;
 
 pub mod cloud_init;
 pub use cloud_init::cloud_init;
+
+pub mod config;
+pub use config::config;