build_litellm_portable.bat

@echo off
setlocal EnableExtensions
:: ============================================================
::  build_litellm_portable.bat  --  100%% OFFLINE
::  Construit .\LiteLLMPortable\ a partir de C:\wheels
::  La version de Python est lue dans C:\wheels\PYVER.txt
::  (ecrit par prep_wheels.bat) : une seule source de verite.
:: ============================================================

set "WHEELS=C:\wheels"

if not exist "%WHEELS%\PYVER.txt" (
  echo [ERREUR] %WHEELS%\PYVER.txt introuvable - lancez prep_wheels.bat d'abord
  exit /b 1
)
set /p PYVER=<"%WHEELS%\PYVER.txt"
for /f "tokens=1,2 delims=." %%a in ("%PYVER%") do set "PYTAG=%%a%%b"
set "PYZIP=python-%PYVER%-embed-amd64.zip"

set "ROOT=%~dp0LiteLLMPortable"
set "PY=%ROOT%\App\python"

:: --- verifications prealables ---
if not exist "%WHEELS%\%PYZIP%" (
  echo [ERREUR] %WHEELS%\%PYZIP% introuvable
  exit /b 1
)
if not exist "%WHEELS%\get-pip.py" (
  echo [ERREUR] %WHEELS%\get-pip.py introuvable
  exit /b 1
)
if exist "%ROOT%" (
  echo [ERREUR] %ROOT% existe deja - supprimez-le d'abord
  exit /b 1
)

mkdir "%PY%" || exit /b 1
mkdir "%ROOT%\Data"

echo [1/6] Extraction du Python embeddable %PYVER%...
powershell -NoProfile -Command "Expand-Archive -LiteralPath '%WHEELS%\%PYZIP%' -DestinationPath '%PY%'"
if errorlevel 1 exit /b 1

echo [2/6] Activation de site-packages (fichier ._pth)...
(
  echo python%PYTAG%.zip
  echo .
  echo Lib\site-packages
  echo import site
) > "%PY%\python%PYTAG%._pth"

echo [3/6] Installation de pip (offline)...
"%PY%\python.exe" "%WHEELS%\get-pip.py" --no-index --find-links "%WHEELS%" --no-warn-script-location
if errorlevel 1 exit /b 1

echo [4/6] Installation de litellm[proxy] (offline)...
"%PY%\python.exe" -m pip install "litellm[proxy]" --no-index --find-links "%WHEELS%" --only-binary=:all: --no-warn-script-location
if errorlevel 1 exit /b 1

echo [5/6] Generation des launchers et de la config...

:: launch.py : resout l'entry point "litellm" via les metadonnees
(
  echo import sys
  echo from importlib.metadata import entry_points
  echo.
  echo eps = entry_points^(group="console_scripts"^)
  echo ep = next^(e for e in eps if e.name == "litellm"^)
  echo sys.exit^(ep.load^(^)^(^)^)
) > "%ROOT%\launch.py"

:: litellm.cmd : launcher relocalisable (tout en chemins relatifs)
(
  echo @echo off
  echo setlocal
  echo set "ROOT=%%~dp0"
  echo set PYTHONNOUSERSITE=1
  echo set PYTHONDONTWRITEBYTECODE=1
  echo set "HOME=%%ROOT%%Data"
  echo set "USERPROFILE=%%ROOT%%Data"
  echo set "TIKTOKEN_CACHE_DIR=%%ROOT%%Data\tiktoken"
  echo "%%ROOT%%App\python\python.exe" "%%ROOT%%launch.py" %%*
) > "%ROOT%\litellm.cmd"

:: config d'exemple (persistante, facon PortableApps)
(
  echo model_list:
  echo   - model_name: exemple
  echo     litellm_params:
  echo       model: openai/mistral-large
  echo       api_base: https://gateway.example.com/v1
  echo       api_key: os.environ/GATEWAY_API_KEY
) > "%ROOT%\Data\config.yaml"

mkdir "%ROOT%\Data\tiktoken"

echo [6/6] Smoke test...
call "%ROOT%\litellm.cmd" --version
if errorlevel 1 (
  echo [ERREUR] le smoke test a echoue
  exit /b 1
)

echo.
echo OK : package pret dans %ROOT% (Python %PYVER%)
echo Usage : litellm.cmd --config Data\config.yaml --port 4000
endlocal

prep_wheels.bat

@echo off
setlocal EnableExtensions
:: ============================================================
::  prep_wheels.bat  --  MACHINE ONLINE
::  Telecharge les bonnes versions de Python et remplit C:\wheels :
::    - Python complet (package NuGet, avec include\ et libs\)
::      utilise pour construire les wheels -> aucun Python requis
::      dans le PATH, et python312.lib present si compilation
::    - Python embeddable (pour le package portable)
::    - wheels de litellm[proxy], wheel de pip, get-pip.py
::  Prerequis : curl uniquement. MSVC seulement si un paquet
::  n'existe qu'en sdist.
:: ============================================================

set "WHEELS=C:\wheels"
set "PYVER=3.12.10"
set "WORK=%TEMP%\litellm-build-python"

:: PYTAG (ex: 312), derive de PYVER
for /f "tokens=1,2 delims=." %%a in ("%PYVER%") do set "PYTAG=%%a%%b"

if not exist "%WHEELS%" mkdir "%WHEELS%"

echo [1/6] Telechargement du Python complet %PYVER% (NuGet)...
curl -L -o "%TEMP%\python-full-%PYVER%.zip" "https://www.nuget.org/api/v2/package/python/%PYVER%" || exit /b 1
if exist "%WORK%" rmdir /s /q "%WORK%"
powershell -NoProfile -Command "Expand-Archive -LiteralPath '%TEMP%\python-full-%PYVER%.zip' -DestinationPath '%WORK%'"
if errorlevel 1 exit /b 1
set "PYFULL=%WORK%\tools\python.exe"

:: controle : la version telechargee doit correspondre a PYVER
"%PYFULL%" -c "import sys,platform; sys.exit(0 if platform.python_version()=='%PYVER%' else 1)"
if errorlevel 1 (
  echo [ERREUR] version Python inattendue dans le package NuGet
  exit /b 1
)

echo [2/6] Bootstrap de pip (ensurepip)...
"%PYFULL%" -m ensurepip --default-pip || exit /b 1
"%PYFULL%" -m pip install --upgrade pip --quiet || exit /b 1

echo [3/6] Construction des wheels de litellm[proxy]...
"%PYFULL%" -m pip wheel "litellm[proxy]" -w "%WHEELS%" || exit /b 1

echo [4/6] Telechargement du wheel de pip...
"%PYFULL%" -m pip download pip -d "%WHEELS%" --only-binary=:all: || exit /b 1

echo [5/6] Telechargement de get-pip.py...
curl -L -o "%WHEELS%\get-pip.py" https://bootstrap.pypa.io/get-pip.py || exit /b 1

echo [6/6] Telechargement du Python embeddable %PYVER%...
curl -L -o "%WHEELS%\python-%PYVER%-embed-amd64.zip" "https://www.python.org/ftp/python/%PYVER%/python-%PYVER%-embed-amd64.zip" || exit /b 1

:: marqueur de version lu par build_litellm_portable.bat
> "%WHEELS%\PYVER.txt" echo %PYVER%

echo.
echo OK : %WHEELS% est pret (Python %PYVER%, wheels cp%PYTAG%).
endlocal