message: Windows: use zig.exe instead of "zig" command
diff: @@ -1622,7 +1622,7 @@ fn find_zig_binary(path: Option<PathBuf>) -> Result<PathBuf> {
  OsStr::new("")
  },
  )) {
  - p.push("zig");
  + p.push(get_zig_exe_str());
  if p.exists() {
  retval = Some(p);
  break;
  @@ -1633,7 +1633,7 @@ fn find_zig_binary(path: Option<PathBuf>) -> Result<PathBuf> {
  #[cfg(feature = "http")]
  {
  match try_autoinstall_zig() {
  - Ok(p) => Some(p.join("zig")),
  + Ok(p) => Some(p.join(get_zig_exe_str())),
  Err(e) => {
  eprintln!("Error when installing zig: {e}");
  None
  @@ -1674,13 +1674,24 @@ fn find_zig_binary(path: Option<PathBuf>) -> Result<PathBuf> {
  }
  }
  +fn get_zig_exe_str() -> &'static str {
  + #[cfg(target_os = "windows")]
  + {
  + "zig.exe"
  + }
  + #[cfg(not(target_os = "windows"))]
  + {
  + "zig"
  + }
  +}
  +
  /// Tries to auto-install zig into ~/.wasmer/utils/zig/{version}
  #[cfg(feature = "http")]
  fn try_autoinstall_zig() -> Result<PathBuf, anyhow::Error> {
  let zig_dir = wasmer_registry::get_wasmer_root_dir()
  .ok_or_else(|| anyhow!("no wasmer root dir"))?
  .join("utils")
  - .join("zig");
  + .join(get_zig_exe_str());
  let mut existing_version = None;
  if !zig_dir.exists() {
  @@ -1690,7 +1701,7 @@ fn try_autoinstall_zig() -> Result<PathBuf, anyhow::Error> {
  if let Ok(mut rd) = std::fs::read_dir(&zig_dir) {
  existing_version = rd.next().and_then(|entry| {
  let string = entry.ok()?.file_name().to_str()?.to_string();
  - if zig_dir.join(&string).join("zig").exists() {
  + if zig_dir.join(&string).join(get_zig_exe_str()).exists() {
  Some(string)
  } else {
  None
  @@ -1727,7 +1738,7 @@ fn install_zig(target_targz_path: &Path) -> Result<PathBuf, anyhow::Error> {
  };
  let install_dir = target_targz_path.join(latest_version);
  - if install_dir.join("zig").exists() {
  + if install_dir.join(get_zig_exe_str()).exists() {
  return Ok(install_dir);
  }
  