1 files changed, 47 insertions, 0 deletions
diff --git a/src/cmd/gen_info.rs b/src/cmd/gen_info.rs
new file mode 100644
index 0000000..901a0ae
--- /dev/null
+++ b/src/cmd/gen_info.rs
@@ -0,0 +1,47 @@
+//! The `gen-info` subcommand.
+
+use crate::chunk::ClientTrust;
+use crate::client::BackupClient;
+use crate::config::ClientConfig;
+use crate::error::ObnamError;
+use clap::Parser;
+use log::info;
+use tempfile::NamedTempFile;
+use tokio::runtime::Runtime;
+
+/// Show metadata for a generation.
+#[derive(Debug, Parser)]
+pub struct GenInfo {
+    /// Reference of the generation.
+    gen_ref: String,
+}
+
+impl GenInfo {
+    /// Run the command.
+    pub fn run(&self, config: &ClientConfig) -> Result<(), ObnamError> {
+        let rt = Runtime::new()?;
+        rt.block_on(self.run_async(config))
+    }
+
+    async fn run_async(&self, config: &ClientConfig) -> Result<(), ObnamError> {
+        let temp = NamedTempFile::new()?;
+
+        let client = BackupClient::new(config)?;
+
+        let trust = client
+            .get_client_trust()
+            .await?
+            .or_else(|| Some(ClientTrust::new("FIXME", None, "".to_string(), vec![])))
+            .unwrap();
+
+        let genlist = client.list_generations(&trust);
+        let gen_id = genlist.resolve(&self.gen_ref)?;
+        info!("generation id is {}", gen_id.as_chunk_id());
+
+        let gen = client.fetch_generation(&gen_id, temp.path()).await?;
+        let meta = gen.meta()?;
+        println!("{}", serde_json::to_string_pretty(&meta)?);
+
+        Ok(())
+    }
+}