[PATCH proxmox-backup 19/28] client: backup writer: allow to send retain-until timestamp on backup

[Christian Ebner <c.ebner@proxmox.com>]

Extend the client options to allow configurartion of a retain-until
timestamp for the to be create backup snapshot on the PBS datastore.

If the server api supports it, the timestamp will be picked up and
processed.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
---
 examples/upload-speed.rs               | 1 +
 pbs-client/src/backup_writer.rs        | 5 +++++
 proxmox-backup-client/src/benchmark.rs | 1 +
 proxmox-backup-client/src/main.rs      | 1 +
 4 files changed, 8 insertions(+)

diff --git a/examples/upload-speed.rs b/examples/upload-speed.rs
index 5a63e0f09..09a5f2042 100644
--- a/examples/upload-speed.rs
+++ b/examples/upload-speed.rs
@@ -27,6 +27,7 @@ async fn upload_speed() -> Result<f64, Error> {
             debug: false,
             benchmark: true,
             no_cache: false,
+            retain_until: None,
         },
     )
     .await?;
diff --git a/pbs-client/src/backup_writer.rs b/pbs-client/src/backup_writer.rs
index b0b6a5133..1e32994ca 100644
--- a/pbs-client/src/backup_writer.rs
+++ b/pbs-client/src/backup_writer.rs
@@ -98,6 +98,8 @@ pub struct BackupWriterOptions<'a> {
     pub benchmark: bool,
     /// Skip datastore cache
     pub no_cache: bool,
+    /// Set retention timestamp for snapshot on PBS
+    pub retain_until: Option<i64>,
 }
 
 impl BackupWriter {
@@ -125,6 +127,9 @@ impl BackupWriter {
         if writer_options.no_cache {
             param["no-cache"] = serde_json::to_value(writer_options.no_cache)?;
         }
+        if let Some(timestamp) = writer_options.retain_until {
+            param["retain-until"] = serde_json::to_value(timestamp)?;
+        }
 
         if !writer_options.ns.is_root() {
             param["ns"] = serde_json::to_value(writer_options.ns)?;
diff --git a/proxmox-backup-client/src/benchmark.rs b/proxmox-backup-client/src/benchmark.rs
index a937bacb9..89bc2396b 100644
--- a/proxmox-backup-client/src/benchmark.rs
+++ b/proxmox-backup-client/src/benchmark.rs
@@ -246,6 +246,7 @@ async fn test_upload_speed(
             debug: false,
             benchmark: true,
             no_cache,
+            retain_until: None,
         },
     )
     .await?;
diff --git a/proxmox-backup-client/src/main.rs b/proxmox-backup-client/src/main.rs
index ab77f0bbf..c9b89368f 100644
--- a/proxmox-backup-client/src/main.rs
+++ b/proxmox-backup-client/src/main.rs
@@ -1046,6 +1046,7 @@ async fn create_backup(
             debug: true,
             benchmark: false,
             no_cache,
+            retain_until: None,
         },
     )
     .await?;
-- 
2.47.3