1 files changed, 46 insertions, 0 deletions
diff --git a/src/cmd/show_gen.rs b/src/cmd/show_gen.rs
new file mode 100644
index 0000000..d355389
--- /dev/null
+++ b/src/cmd/show_gen.rs
@@ -0,0 +1,46 @@
+use crate::client::BackupClient;
+use crate::client::ClientConfig;
+use crate::error::ObnamError;
+use crate::fsentry::FilesystemKind;
+use indicatif::HumanBytes;
+use tempfile::NamedTempFile;
+
+pub fn show_generation(config: &ClientConfig, gen_ref: &str) -> anyhow::Result<()> {
+    // Create a named temporary file. We don't meed the open file
+    // handle, so we discard that.
+    let dbname = {
+        let temp = NamedTempFile::new()?;
+        let (_, dbname) = temp.keep()?;
+        dbname
+    };
+
+    let client = BackupClient::new(&config.server_url)?;
+
+    let genlist = client.list_generations()?;
+    let gen_id: String = match genlist.resolve(gen_ref) {
+        None => return Err(ObnamError::UnknownGeneration(gen_ref.to_string()).into()),
+        Some(id) => id,
+    };
+
+    let gen = client.fetch_generation(&gen_id, &dbname)?;
+    let files = gen.files()?;
+
+    let total_bytes = files.iter().fold(0, |acc, file| {
+        let e = file.entry();
+        if e.kind() == FilesystemKind::Regular {
+            acc + file.entry().len()
+        } else {
+            acc
+        }
+    });
+
+    println!("generation-id: {}", gen_id);
+    println!("file-count: {}", gen.file_count()?);
+    println!("file-bytes: {}", HumanBytes(total_bytes));
+    println!("file-bytes-raw: {}", total_bytes);
+
+    // Delete the temporary file.
+    std::fs::remove_file(&dbname)?;
+
+    Ok(())
+}