src/api2/admin/datastore.rs - prune: log retention options

docs/administration-guide.rst

@@ -471,6 +471,8 @@ on that.
 .. code-block:: console
 
   # proxmox-backup-client prune host/elsa --dry-run --keep-daily 1 --keep-weekly 3
+  retention options: --keep-daily 1 --keep-weekly 3
+  Testing prune on store "store2" group "host/elsa"
   host/elsa/2019-12-04T13:20:37Z keep
   host/elsa/2019-12-03T09:35:01Z remove
   host/elsa/2019-11-22T11:54:47Z keep

src/api2/admin/datastore.rs

@@ -339,6 +339,7 @@ fn prune(
             worker.log("No prune selection - keeping all files.");
             return Ok(());
         } else {
+            worker.log(format!("retention options: {}", prune_options.cli_options_string()));
             if dry_run {
                 worker.log(format!("Testing prune on store \"{}\" group \"{}/{}\"",
                                    store, backup_type, backup_id));

src/backup/prune.rs

@@ -131,6 +131,43 @@ impl PruneOptions {
         if let Some(count) = self.keep_yearly { if count > 0 { keep_something = true; } }
         keep_something
     }
+
+    pub fn cli_options_string(&self) -> String {
+        let mut opts = Vec::new();
+
+        if let Some(count) = self.keep_last {
+            if count > 0 {
+                opts.push(format!("--keep-last {}", count));
+            }
+        }
+        if let Some(count) = self.keep_hourly {
+            if count > 0 {
+                opts.push(format!("--keep-hourly {}", count));
+            }
+        }
+        if let Some(count) = self.keep_daily {
+            if count > 0 {
+                opts.push(format!("--keep-daily {}", count));
+            }
+        }
+        if let Some(count) = self.keep_weekly {
+            if count > 0 {
+                opts.push(format!("--keep-weekly {}", count));
+            }
+        }
+        if let Some(count) = self.keep_monthly {
+            if count > 0 {
+                opts.push(format!("--keep-monthly {}", count));
+            }
+        }
+        if let Some(count) = self.keep_yearly {
+            if count > 0 {
+                opts.push(format!("--keep-yearly {}", count));
+            }
+        }
+
+        opts.join(" ")
+    }
 }
 
 pub fn compute_prune_info(