fix naova.bat

Author: chryd

naova.bat

@@ -1,12 +1,86 @@
-set "ISAACLAB_PATH=%~dp0"
-rem build the documentation
+@echo off
+setlocal enabledelayedexpansion
+
+set "NAOVA_DOC_PATH=%~dp0"
+
 echo [INFO] Building documentation...
 call :extract_python_exe
-pushd %ISAACLAB_PATH%\docs
-call !python_exe! -m pip install -r requirements.txt >nul
-call !python_exe! -m sphinx -b html -d _build\doctrees . _build\html
-echo [INFO] To open documentation on default browser, run:
-echo xdg-open "%ISAACLAB_PATH%\docs\_build\html\index.html"
-popd >nul
-shift
-goto :end
+
+if "%python_exe%"=="" (
+    echo [ERROR] Unable to find a valid Python executable.
+    echo 	Possible reasons:
+    echo 	1. Python is not installed.
+    echo 	2. Python is not in the system PATH.
+    exit /b 1
+)
+
+echo [INFO] Using Python: %python_exe%
+
+rem Remove old build
+if exist "%NAOVA_DOC_PATH%\docs\_build" (
+    echo [INFO] Removing old build...
+    rmdir /s /q "%NAOVA_DOC_PATH%\docs\_build"
+)
+
+rem Check if dependencies are already installed
+pushd "%NAOVA_DOC_PATH%\docs"
+
+echo [INFO] Checking dependencies...
+"%python_exe%" -m pip list | findstr /i "sphinx" >nul
+if errorlevel 1 (
+    echo [INFO] Installing dependencies...
+    "%python_exe%" -m pip install -q -r requirements.txt
+    if errorlevel 1 (
+        echo [ERROR] Failed to install dependencies
+        popd
+        exit /b 1
+    )
+) else (
+    echo [INFO] Dependencies already installed
+)
+
+echo [INFO] Building Sphinx documentation...
+"%python_exe%" -m sphinx -b html -d _build\doctrees . _build\html
+if errorlevel 1 (
+    echo [ERROR] Failed to build documentation
+    popd
+    exit /b 1
+)
+
+popd
+
+echo [INFO] Documentation built successfully!
+echo [INFO] Opening documentation...
+start "" "%NAOVA_DOC_PATH%\docs\_build\html\index.html"
+
+goto :end
+
+:extract_python_exe
+setlocal enabledelayedexpansion
+set "python_exe="
+
+rem Check if using Conda
+if defined CONDA_PREFIX (
+    if exist "!CONDA_PREFIX!\python.exe" (
+        set "python_exe=!CONDA_PREFIX!\python.exe"
+    )
+)
+
+rem Fallback to system Python
+if "!python_exe!"=="" (
+    for /f "delims=" %%i in ('where python 2^>nul') do (
+        set "python_exe=%%i"
+        goto :found_python
+    )
+    for /f "delims=" %%i in ('where python3 2^>nul') do (
+        set "python_exe=%%i"
+        goto :found_python
+    )
+)
+
+:found_python
+endlocal & set "python_exe=%python_exe%"
+exit /b 0
+
+:end
+exit /b 0