[pbs-devel] [PATCH backup 06/11] tape: remove lazy_static dependency

[Maximiliano Sandoval]

Signed-off-by: Maximiliano Sandoval <m.sandoval at proxmox.com>
---
 pbs-tape/Cargo.toml               |  2 +-
 pbs-tape/src/linux_list_drives.rs |  7 +++----
 pbs-tape/src/sg_tape/mam.rs       | 18 ++++++++----------
 3 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/pbs-tape/Cargo.toml b/pbs-tape/Cargo.toml
index f4110706..142bbacd 100644
--- a/pbs-tape/Cargo.toml
+++ b/pbs-tape/Cargo.toml
@@ -4,13 +4,13 @@ version = "0.1.0"
 authors.workspace = true
 edition.workspace = true
 description = "LTO tape support"
+rust-version.workspace = true
 
 [dependencies]
 anyhow.workspace = true
 bitflags.workspace = true
 endian_trait.workspace = true
 hex.workspace = true
-lazy_static.workspace = true
 libc.workspace = true
 log.workspace = true
 nix.workspace = true
diff --git a/pbs-tape/src/linux_list_drives.rs b/pbs-tape/src/linux_list_drives.rs
index 39d2aac7..96227672 100644
--- a/pbs-tape/src/linux_list_drives.rs
+++ b/pbs-tape/src/linux_list_drives.rs
@@ -3,6 +3,7 @@ use std::fs::{File, OpenOptions};
 use std::os::unix::fs::OpenOptionsExt;
 use std::os::unix::io::AsRawFd;
 use std::path::{Path, PathBuf};
+use std::sync::LazyLock;
 
 use anyhow::{bail, format_err, Error};
 use nix::fcntl::{fcntl, FcntlArg, OFlag};
@@ -12,10 +13,8 @@ use proxmox_sys::fs::scan_subdir;
 
 use pbs_api_types::{DeviceKind, OptionalDeviceIdentification, TapeDeviceInfo};
 
-lazy_static::lazy_static! {
-    static ref SCSI_GENERIC_NAME_REGEX: regex::Regex =
-        regex::Regex::new(r"^sg\d+$").unwrap();
-}
+static SCSI_GENERIC_NAME_REGEX: LazyLock<regex::Regex> =
+    LazyLock::new(|| regex::Regex::new(r"^sg\d+$").unwrap());
 
 /// List linux tape changer devices
 pub fn linux_tape_changer_list() -> Vec<TapeDeviceInfo> {
diff --git a/pbs-tape/src/sg_tape/mam.rs b/pbs-tape/src/sg_tape/mam.rs
index 4e995d0b..4a94fa92 100644
--- a/pbs-tape/src/sg_tape/mam.rs
+++ b/pbs-tape/src/sg_tape/mam.rs
@@ -1,5 +1,6 @@
 use std::collections::HashMap;
 use std::os::unix::io::AsRawFd;
+use std::sync::LazyLock;
 
 use anyhow::{bail, format_err, Error};
 use endian_trait::Endian;
@@ -114,18 +115,15 @@ static MAM_ATTRIBUTES: &[MamType] = &[
     MamType::bin(0x10_01, 24, "Alternate Unique Cartridge Identify (Alt-UCI)"),
 ];
 
-lazy_static::lazy_static! {
+static MAM_ATTRIBUTE_NAMES: LazyLock<HashMap<u16, &'static MamType>> = LazyLock::new(|| {
+    let mut map = HashMap::new();
 
-    static ref MAM_ATTRIBUTE_NAMES: HashMap<u16, &'static MamType> = {
-        let mut map = HashMap::new();
-
-        for entry in MAM_ATTRIBUTES {
-            map.insert(entry.id, entry);
-        }
+    for entry in MAM_ATTRIBUTES {
+        map.insert(entry.id, entry);
+    }
 
-        map
-    };
-}
+    map
+});
 
 fn read_tape_mam<F: AsRawFd>(file: &mut F) -> Result<Vec<u8>, Error> {
     let alloc_len: u32 = 32 * 1024;
-- 
2.39.2