Quit if Command Extensions are disabled

README.md

@@ -186,11 +186,8 @@ zoxide can be installed in 4 easy steps:
  > Add this to the **end** of your config file or AutoRun command:
  >
  > ```batchfile
- > zoxide init cmd | cmd /d >nul
+ > zoxide init cmd | cmd /d /k >nul
  > ```
- >
- > **Note**
- > zoxide only supports `cmd.exe` with Command Extensions v2 and above.
 
  </details>
 

src/shell.rs

@@ -104,13 +104,27 @@ mod tests {
  let source = Cmd(&opts).render().unwrap();
 
  Command::new("cmd.exe")
- .args(["/a", "/d", "/e:on", "/q", "/v:off", "/k", "@doskey", "/macros:all"])
+ .args(["/a", "/d", "/e:on", "/q", "/v:off", "/k", "@doskey /macros:cmd.exe"])
  .write_stdin(source)
  .assert()
  .success()
  .stderr("");
  }
 
+ #[apply(opts)]
+ #[cfg(windows)]
+ fn cmd_dos(cmd: Option<&str>, hook: InitHook, echo: bool, resolve_symlinks: bool) {
+ let opts = Opts { cmd, hook, echo, resolve_symlinks };
+ let source = Cmd(&opts).render().unwrap();
+
+ Command::new("cmd.exe")
+ .args(["/a", "/d", "/e:off", "/q", "/v:off", "/k", "@doskey /macros:cmd.exe"])
+ .write_stdin(source)
+ .assert()
+ .failure()
+ .stderr("zoxide: unable to init with Command Extensions disabled (see `help cmd` for details)");
+ }
+
  #[apply(opts)]
  #[cfg(unix)]
  fn elvish_elvish(cmd: Option<&str>, hook: InitHook, echo: bool, resolve_symlinks: bool) {

templates/cmd.txt

@@ -32,7 +32,11 @@
 {%- let section = "@rem ==========================================================================\n@rem" -%}
 {%- let not_configured = "@rem -- not configured --" -%}
 
-@echo off & setlocal DisableDelayedExpansion EnableExtensions
+@(set ^"^") >nul 2>nul && (echo off) || (
+ echo zoxide: unable to init with Command Extensions disabled ^(see `help cmd` for details^)
+) >&2 && exit /b 1 "Command Extensions are disabled" 2>nul
+
+setlocal DisableDelayedExpansion EnableExtensions
 
 if /i "%~f0"=="%~dpnx0" (
  set ^"$p=%%<nul"
@@ -156,6 +160,4 @@ endlocal & set OLDPWD=
 {{ section }}
 @rem To initialize zoxide, add this to your configuration or AutoRun command:
 @rem
-@rem zoxide init cmd | cmd /d >nul
-@rem
-@rem Note: zoxide only supports `cmd.exe` with Command Extensions v2 and above.
+@rem zoxide init cmd | cmd /d /k >nul