Ensure sqlez build succeeds on Windows (#7072)

On Windows, `OsStr` must be a valid
[WTF-8](https://simonsapin.github.io/wtf-8/) sequence, and there are no
safety ways converting from bytes to OsStr in std. So I added
`PathExt::try_from_bytes` and use it in `sqlez`.

crates/util/Cargo.toml

@@ -31,6 +31,9 @@ git2 = { workspace = true, optional = true }
 dirs = "3.0"
 take-until = "0.2.0"
 
+[target.'cfg(windows)'.dependencies]
+tendril = "0.4.3"
+
 [dev-dependencies]
 tempfile.workspace = true
 git2.workspace = true

crates/util/src/paths.rs

@@ -1,4 +1,7 @@
-use std::path::{Path, PathBuf};
+use std::{
+    ffi::OsStr,
+    path::{Path, PathBuf},
+};
 
 use globset::{Glob, GlobMatcher};
 use serde::{Deserialize, Serialize};
@@ -40,6 +43,29 @@ pub trait PathExt {
     fn compact(&self) -> PathBuf;
     fn icon_suffix(&self) -> Option<&str>;
     fn extension_or_hidden_file_name(&self) -> Option<&str>;
+    fn try_from_bytes<'a>(bytes: &'a [u8]) -> anyhow::Result<Self>
+    where
+        Self: From<&'a Path>,
+    {
+        #[cfg(unix)]
+        {
+            use std::os::unix::prelude::OsStrExt;
+            Ok(Self::from(Path::new(OsStr::from_bytes(bytes))))
+        }
+        #[cfg(windows)]
+        {
+            use anyhow::anyhow;
+            use tendril::fmt::{Format, WTF8};
+            WTF8::validate(bytes)
+                .then(|| {
+                    // Safety: bytes are valid WTF-8 sequence.
+                    Self::from(Path::new(unsafe {
+                        OsStr::from_encoded_bytes_unchecked(bytes)
+                    }))
+                })
+                .ok_or_else(|| anyhow!("Invalid WTF-8 sequence: {bytes:?}"))
+        }
+    }
 }
 
 impl<T: AsRef<Path>> PathExt for T {