CI: Add windows clippy job and fix clippy errors

.github/scripts/cargo-clippy-before-script.sh

@@ -6,6 +6,10 @@ os_name="$1"
 
 case "$os_name" in
 "Windows")
+  vcpkg install openssl:x64-windows-static-md
+  vcpkg integrate install
+  choco install protoc
+  export PROTOC='C:\ProgramData\chocolatey\lib\protoc\tools\bin\protoc.exe'
   ;;
 "macOS")
   brew install protobuf

.github/workflows/cargo.yml

@@ -31,6 +31,7 @@ jobs:
       matrix:
         os:
           - macos-latest-large
+          - windows-latest
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -53,6 +54,7 @@ jobs:
       matrix:
         os:
           - macos-latest-large
+          - windows-latest
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4

accounts-db/src/hardened_unpack.rs

@@ -205,6 +205,9 @@ where
     #[cfg(windows)]
     fn set_perms(dst: &Path, _mode: u32) -> std::io::Result<()> {
         let mut perm = fs::metadata(dst)?.permissions();
+        // This is OK for Windows, but clippy doesn't realize we're doing this
+        // only on Windows.
+        #[allow(clippy::permissions_set_readonly_false)]
         perm.set_readonly(false);
         fs::set_permissions(dst, perm)
     }

geyser-plugin-manager/src/geyser_plugin_manager.rs

@@ -451,9 +451,13 @@ mod tests {
         plugin: P,
         config_path: &'static str,
     ) -> (LoadedGeyserPlugin, Library, &'static str) {
+        #[cfg(unix)]
+        let library = libloading::os::unix::Library::this();
+        #[cfg(windows)]
+        let library = libloading::os::windows::Library::this().unwrap();
         (
             LoadedGeyserPlugin::new(Box::new(plugin), None),
-            Library::from(libloading::os::unix::Library::this()),
+            Library::from(library),
             config_path,
         )
     }

install/src/command.rs

@@ -333,9 +333,7 @@ pub fn string_from_winreg_value(val: &winreg::RegValue) -> Option<String> {
             let words = unsafe {
                 slice::from_raw_parts(val.bytes.as_ptr() as *const u16, val.bytes.len() / 2)
             };
-            let mut s = if let Ok(s) = String::from_utf16(words) {
-                s
-            } else {
+            let Ok(mut s) = String::from_utf16(words) else {
                 return None;
             };
             while s.ends_with('\u{0}') {
@@ -392,11 +390,9 @@ fn add_to_path(new_path: &str) -> bool {
         },
     };
 
-    let old_path = if let Some(s) =
+    let Some(old_path) =
         get_windows_path_var().unwrap_or_else(|err| panic!("Unable to get PATH: {}", err))
-    {
-        s
-    } else {
+    else {
         return false;
     };
 

programs/sbf/benches/bpf_loader.rs

@@ -2,7 +2,10 @@
 #![cfg(feature = "sbf_c")]
 #![allow(clippy::uninlined_format_args)]
 #![allow(clippy::arithmetic_side_effects)]
-#![cfg_attr(not(target_arch = "x86_64"), allow(dead_code, unused_imports))]
+#![cfg_attr(
+    any(target_os = "windows", not(target_arch = "x86_64")),
+    allow(dead_code, unused_imports)
+)]
 
 use {
     solana_rbpf::memory_region::MemoryState,
@@ -103,7 +106,7 @@ fn bench_program_create_executable(bencher: &mut Bencher) {
 }
 
 #[bench]
-#[cfg(target_arch = "x86_64")]
+#[cfg(all(not(target_os = "windows"), target_arch = "x86_64"))]
 fn bench_program_alu(bencher: &mut Bencher) {
     let ns_per_s = 1000000000;
     let one_million = 1000000;

rpc/src/rpc_service.rs

@@ -878,24 +878,21 @@ mod tests {
             panic!("Unexpected RequestMiddlewareAction variant");
         }
 
-        #[cfg(unix)]
+        std::fs::remove_file(&genesis_path).unwrap();
         {
-            std::fs::remove_file(&genesis_path).unwrap();
-            {
-                let mut file = std::fs::File::create(ledger_path.path().join("wrong")).unwrap();
-                file.write_all(b"wrong file").unwrap();
-            }
-            symlink::symlink_file("wrong", &genesis_path).unwrap();
-
-            // File is a symbolic link => request should fail.
-            let action = rrm.process_file_get(DEFAULT_GENESIS_DOWNLOAD_PATH);
-            if let RequestMiddlewareAction::Respond { response, .. } = action {
-                let response = runtime.block_on(response);
-                let response = response.unwrap();
-                assert_ne!(response.status(), 200);
-            } else {
-                panic!("Unexpected RequestMiddlewareAction variant");
-            }
+            let mut file = std::fs::File::create(ledger_path.path().join("wrong")).unwrap();
+            file.write_all(b"wrong file").unwrap();
+        }
+        symlink::symlink_file("wrong", &genesis_path).unwrap();
+
+        // File is a symbolic link => request should fail.
+        let action = rrm.process_file_get(DEFAULT_GENESIS_DOWNLOAD_PATH);
+        if let RequestMiddlewareAction::Respond { response, .. } = action {
+            let response = runtime.block_on(response);
+            let response = response.unwrap();
+            assert_ne!(response.status(), 200);
+        } else {
+            panic!("Unexpected RequestMiddlewareAction variant");
         }
     }
 }