fix(compat): [#1981] Windows平台sync_parent_dir兼容修复

- sync_parent_dir新增#[cfg(windows)]空实现
- File导入改为条件编译避免Windows编译失败
- 版本号升级至v0.5.3

Cargo.lock

@@ -261,7 +261,7 @@ dependencies = [
 
 [[package]]
 name = "l-s"
-version = "0.5.2"
+version = "0.5.3"
 dependencies = [
  "anyhow",
  "clap",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "l-s"
-version = "0.5.2"
+version = "0.5.3"
 authors = ["licsber <admin@licsber.site>"]
 edition = "2021"
 

src/main.rs

@@ -4,7 +4,9 @@ mod head_hash;
 mod meta;
 mod utils;
 
-use std::fs::{self, File, OpenOptions};
+#[cfg(not(windows))]
+use std::fs::File;
+use std::fs::{self, OpenOptions};
 use std::io::{self, Write};
 use std::path::{Path, PathBuf};
 use std::time::{Instant, SystemTime, UNIX_EPOCH};
@@ -243,6 +245,7 @@ fn symlink_metadata_optional(path: &Path) -> Result<Option<fs::Metadata>> {
     }
 }
 
+#[cfg(not(windows))]
 fn sync_parent_dir(path: &Path) -> Result<()> {
     let parent = path.parent().unwrap_or_else(|| Path::new("."));
     let dir = File::open(parent)
@@ -250,3 +253,11 @@ fn sync_parent_dir(path: &Path) -> Result<()> {
     dir.sync_all()
         .with_context(|| format!("无法同步父目录: {}", parent.display()))
 }
+
+#[cfg(windows)]
+fn sync_parent_dir(_path: &Path) -> Result<()> {
+    // Windows does not support the Unix-style parent directory fsync used here
+    // through std::fs::File::open. The data file itself is still synced before
+    // rename; directory syncing is a best-effort durability step on Unix.
+    Ok(())
+}