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From: Dominik Csapak <d.csapak@proxmox.com>
To: pbs-devel@lists.proxmox.com
Date: Fri, 16 Apr 2021 12:29:00 +0200
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Subject: [pbs-devel] [PATCH proxmox-backup v2 04/14] tape/media_*: clippy
 fixes
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fixes:
* impl (or derive) Default if struct has 'new()'
* use `or_insert_with`
* combine if branches

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
 src/tape/media_catalog.rs | 10 ++++++----
 src/tape/media_pool.rs    | 16 ++++++----------
 src/tape/media_set.rs     |  4 ++++
 3 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/src/tape/media_catalog.rs b/src/tape/media_catalog.rs
index aff91c43..ac11346a 100644
--- a/src/tape/media_catalog.rs
+++ b/src/tape/media_catalog.rs
@@ -30,6 +30,7 @@ use crate::{
     },
 };
 
+#[derive(Default)]
 pub struct DatastoreContent {
     pub snapshot_index: HashMap<String, u64>, // snapshot => file_nr
     pub chunk_index: HashMap<[u8;32], u64>, // chunk => file_nr
@@ -580,7 +581,7 @@ impl MediaCatalog {
         unsafe { self.pending.write_le_value(entry)?; }
         self.pending.extend(store.as_bytes());
 
-        self.content.entry(store.to_string()).or_insert(DatastoreContent::new());
+        self.content.entry(store.to_string()).or_insert_with(DatastoreContent::new);
 
         self.current_archive = Some((uuid, file_number, store.to_string()));
 
@@ -688,7 +689,7 @@ impl MediaCatalog {
         self.pending.extend(snapshot.as_bytes());
 
         let content = self.content.entry(store.to_string())
-            .or_insert(DatastoreContent::new());
+            .or_insert_with(DatastoreContent::new);
 
         content.snapshot_index.insert(snapshot.to_string(), file_number);
 
@@ -809,7 +810,7 @@ impl MediaCatalog {
                     self.check_start_chunk_archive(file_number)?;
 
                     self.content.entry(store.to_string())
-                        .or_insert(DatastoreContent::new());
+                        .or_insert_with(DatastoreContent::new);
 
                     self.current_archive = Some((uuid, file_number, store.to_string()));
                }
@@ -843,7 +844,7 @@ impl MediaCatalog {
                     self.check_register_snapshot(file_number, snapshot)?;
 
                     let content = self.content.entry(store.to_string())
-                        .or_insert(DatastoreContent::new());
+                        .or_insert_with(DatastoreContent::new);
 
                     content.snapshot_index.insert(snapshot.to_string(), file_number);
 
@@ -884,6 +885,7 @@ impl MediaCatalog {
 /// Media set catalog
 ///
 /// Catalog for multiple media.
+#[derive(Default)]
 pub struct MediaSetCatalog  {
     catalog_list: HashMap<Uuid, MediaCatalog>,
 }
diff --git a/src/tape/media_pool.rs b/src/tape/media_pool.rs
index 039b46fc..51b537c4 100644
--- a/src/tape/media_pool.rs
+++ b/src/tape/media_pool.rs
@@ -348,13 +348,11 @@ impl MediaPool {
             MediaLocation::Online(name) => {
                 if self.force_media_availability {
                     true
+                } else if let Some(ref changer_name) = self.changer_name {
+                    name == changer_name
                 } else {
-                    if let Some(ref changer_name) = self.changer_name {
-                        name == changer_name
-                    } else {
-                        // a standalone drive cannot use media currently inside a library
-                        false
-                    }
+                    // a standalone drive cannot use media currently inside a library
+                    false
                 }
             }
             MediaLocation::Offline => {
@@ -606,10 +604,8 @@ impl MediaPool {
                     let media_location = media.location();
                     if self.location_is_available(media_location) {
                         last_is_writable = true;
-                    } else {
-                        if let MediaLocation::Vault(vault) = media_location {
-                            bail!("writable media offsite in vault '{}'", vault);
-                        }
+                    } else if let MediaLocation::Vault(vault) = media_location {
+                        bail!("writable media offsite in vault '{}'", vault);
                     }
                 },
                 _ => bail!("unable to use media set - wrong media status {:?}", media.status()),
diff --git a/src/tape/media_set.rs b/src/tape/media_set.rs
index 5568e7f6..858a9e77 100644
--- a/src/tape/media_set.rs
+++ b/src/tape/media_set.rs
@@ -74,3 +74,7 @@ impl MediaSet {
         }
     }
 }
+
+impl Default for MediaSet {
+    fn default() -> Self { Self::new() }
+}
-- 
2.20.1