Fix: Accept non utf-8 characters in compiler and archiver

src/command_helpers.rs

@@ -215,7 +215,7 @@ fn write_warning(line: &[u8]) {
 
 fn wait_on_child(
     cmd: &Command,
-    program: &str,
+    program: &Path,
     child: &mut Child,
     cargo_output: &CargoOutput,
 ) -> Result<(), Error> {
@@ -227,8 +227,10 @@ fn wait_on_child(
             return Err(Error::new(
                 ErrorKind::ToolExecError,
                 format!(
-                    "Failed to wait on spawned child process, command {:?} with args {:?}: {}.",
-                    cmd, program, e
+                    "Failed to wait on spawned child process, command {:?} with args {}: {}.",
+                    cmd,
+                    program.display(),
+                    e
                 ),
             ));
         }
@@ -242,8 +244,10 @@ fn wait_on_child(
         Err(Error::new(
             ErrorKind::ToolExecError,
             format!(
-                "Command {:?} with args {:?} did not execute successfully (status code {}).",
-                cmd, program, status
+                "Command {:?} with args {} did not execute successfully (status code {}).",
+                cmd,
+                program.display(),
+                status
             ),
         ))
     }
@@ -299,18 +303,22 @@ pub(crate) fn objects_from_files(files: &[Arc<Path>], dst: &Path) -> Result<Vec<
 
 pub(crate) fn run(
     cmd: &mut Command,
-    program: &str,
+    program: impl AsRef<Path>,
     cargo_output: &CargoOutput,
 ) -> Result<(), Error> {
+    let program = program.as_ref();
+
     let mut child = spawn(cmd, program, cargo_output)?;
     wait_on_child(cmd, program, &mut child, cargo_output)
 }
 
 pub(crate) fn run_output(
     cmd: &mut Command,
-    program: &str,
+    program: impl AsRef<Path>,
     cargo_output: &CargoOutput,
 ) -> Result<Vec<u8>, Error> {
+    let program = program.as_ref();
+
     cmd.stdout(Stdio::piped());
 
     let mut child = spawn(cmd, program, cargo_output)?;
@@ -330,7 +338,7 @@ pub(crate) fn run_output(
 
 pub(crate) fn spawn(
     cmd: &mut Command,
-    program: &str,
+    program: &Path,
     cargo_output: &CargoOutput,
 ) -> Result<Child, Error> {
     struct ResetStderr<'cmd>(&'cmd mut Command);
@@ -358,14 +366,20 @@ for help)"
             };
             Err(Error::new(
                 ErrorKind::ToolNotFound,
-                format!("Failed to find tool. Is `{}` installed?{}", program, extra),
+                format!(
+                    "Failed to find tool. Is `{}` installed?{}",
+                    program.display(),
+                    extra
+                ),
             ))
         }
         Err(e) => Err(Error::new(
             ErrorKind::ToolExecError,
             format!(
-                "Command {:?} with args {:?} failed to start: {:?}",
-                cmd.0, program, e
+                "Command {:?} with args {} failed to start: {:?}",
+                cmd.0,
+                program.display(),
+                e
             ),
         )),
     }
@@ -393,7 +407,7 @@ pub(crate) fn command_add_output_file(
 #[cfg(feature = "parallel")]
 pub(crate) fn try_wait_on_child(
     cmd: &Command,
-    program: &str,
+    program: &Path,
     child: &mut Child,
     stdout: &mut dyn io::Write,
     stderr_forwarder: &mut StderrForwarder,
@@ -412,8 +426,10 @@ pub(crate) fn try_wait_on_child(
                 Err(Error::new(
                     ErrorKind::ToolExecError,
                     format!(
-                        "Command {:?} with args {:?} did not execute successfully (status code {}).",
-                            cmd, program, status
+                        "Command {:?} with args {} did not execute successfully (status code {}).",
+                        cmd,
+                        program.display(),
+                        status
                     ),
                 ))
             }
@@ -424,8 +440,10 @@ pub(crate) fn try_wait_on_child(
             Err(Error::new(
                 ErrorKind::ToolExecError,
                 format!(
-                    "Failed to wait on spawned child process, command {:?} with args {:?}: {}.",
-                    cmd, program, e
+                    "Failed to wait on spawned child process, command {:?} with args {}: {}.",
+                    cmd,
+                    program.display(),
+                    e
                 ),
             ))
         }

src/lib.rs

@@ -1439,7 +1439,7 @@ impl Build {
 
         let pendings = Cell::new(Vec::<(
             Command,
-            String,
+            Cow<'static, Path>,
             KillOnDrop,
             parallel::job_token::JobToken,
         )>::new());
@@ -1563,7 +1563,10 @@ impl Build {
         Ok(())
     }
 
-    fn create_compile_object_cmd(&self, obj: &Object) -> Result<(Command, String), Error> {
+    fn create_compile_object_cmd(
+        &self,
+        obj: &Object,
+    ) -> Result<(Command, Cow<'static, Path>), Error> {
         let asm_ext = AsmFileExt::from_path(&obj.src);
         let is_asm = asm_ext.is_some();
         let target = self.get_target()?;
@@ -1574,7 +1577,8 @@ impl Build {
 
         let is_assembler_msvc = msvc && asm_ext == Some(AsmFileExt::DotAsm);
         let (mut cmd, name) = if is_assembler_msvc {
-            self.msvc_macro_assembler()?
+            let (cmd, name) = self.msvc_macro_assembler()?;
+            (cmd, Cow::Borrowed(Path::new(name)))
         } else {
             let mut cmd = compiler.to_command();
             for (a, b) in self.env.iter() {
@@ -1585,9 +1589,9 @@ impl Build {
                 compiler
                     .path
                     .file_name()
-                    .ok_or_else(|| Error::new(ErrorKind::IOError, "Failed to get compiler path."))?
-                    .to_string_lossy()
-                    .into_owned(),
+                    .ok_or_else(|| Error::new(ErrorKind::IOError, "Failed to get compiler path."))
+                    .map(PathBuf::from)
+                    .map(Cow::Owned)?,
             )
         };
         let is_arm = target.contains("aarch64") || target.contains("arm");
@@ -1653,9 +1657,7 @@ impl Build {
         let name = compiler
             .path
             .file_name()
-            .ok_or_else(|| Error::new(ErrorKind::IOError, "Failed to get compiler path."))?
-            .to_string_lossy()
-            .into_owned();
+            .ok_or_else(|| Error::new(ErrorKind::IOError, "Failed to get compiler path."))?;
 
         Ok(run_output(&mut cmd, &name, &self.cargo_output)?)
     }
@@ -2321,7 +2323,7 @@ impl Build {
         }
     }
 
-    fn msvc_macro_assembler(&self) -> Result<(Command, String), Error> {
+    fn msvc_macro_assembler(&self) -> Result<(Command, &'static str), Error> {
         let target = self.get_target()?;
         let tool = if target.contains("x86_64") {
             "ml64.exe"
@@ -2374,7 +2376,7 @@ impl Build {
             cmd.arg("-safeseh");
         }
 
-        Ok((cmd, tool.to_string()))
+        Ok((cmd, tool))
     }
 
     fn assemble(&self, lib_name: &str, dst: &Path, objs: &[Object]) -> Result<(), Error> {
@@ -3026,7 +3028,7 @@ impl Build {
         }
     }
 
-    fn get_ar(&self) -> Result<(Command, String, bool), Error> {
+    fn get_ar(&self) -> Result<(Command, PathBuf, bool), Error> {
         self.try_get_archiver_and_flags()
     }
 
@@ -3059,7 +3061,7 @@ impl Build {
         Ok(self.try_get_archiver_and_flags()?.0)
     }
 
-    fn try_get_archiver_and_flags(&self) -> Result<(Command, String, bool), Error> {
+    fn try_get_archiver_and_flags(&self) -> Result<(Command, PathBuf, bool), Error> {
         let (mut cmd, name) = self.get_base_archiver()?;
         let mut any_flags = false;
         if let Ok(flags) = self.envflags("ARFLAGS") {
@@ -3073,12 +3075,14 @@ impl Build {
         Ok((cmd, name, any_flags))
     }
 
-    fn get_base_archiver(&self) -> Result<(Command, String), Error> {
+    fn get_base_archiver(&self) -> Result<(Command, PathBuf), Error> {
         if let Some(ref a) = self.archiver {
-            return Ok((self.cmd(&**a), a.to_string_lossy().into_owned()));
+            let archiver = &**a;
+            return Ok((self.cmd(archiver), archiver.into()));
         }
 
         self.get_base_archiver_variant("AR", "ar")
+            .map(|(cmd, archiver)| (cmd, archiver.into()))
     }
 
     /// Get the ranlib that's in use for this configuration.

src/tool.rs

@@ -81,7 +81,7 @@ impl Tool {
 
             let stdout = match run_output(
                 &mut cmd,
-                &path.to_string_lossy(),
+                path,
                 // tool detection issues should always be shown as warnings
                 cargo_output,
             )