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feat: Add .env file support to Windows build scripts (#9214)

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* 🔧 (build_and_run.bat): add support for loading environment variables from .env file
🔧 (build_and_run.ps1): add support for loading environment variables from .env file

* 🐛 (build_and_run.bat): fix path to .env file to correctly load environment variables
🐛 (build_and_run.ps1): fix path to .env file to correctly load environment variables

* 🔧 (build_and_run.bat): set env file parameter if .env file exists to pass to langflow run
🔧 (build_and_run.ps1): set env file parameter if .env file exists to pass to langflow run

* 📝 (build_and_run.bat): improve script to dynamically find and set .env file path for Langflow run
📝 (build_and_run.ps1): enhance script to dynamically locate and set .env file path for Langflow run

* Update scripts/windows/build_and_run.bat

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* 🔧 (build_and_run.ps1): refactor script to use a boolean flag 'useEnvFile' instead of a string variable 'envFileParam' to improve readability and maintainability
🔧 (build_and_run.ps1): update uvicorn command to use '--env-file' flag directly instead of building the command with a string variable

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
This commit is contained in:
Cristhian Zanforlin Lousa 2025-07-28 18:11:49 -03:00 • committed by GitHub
commit 86c54de508
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2 changed files with 44 additions and 10 deletions
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21
scripts/windows/build_and_run.bat
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@ -1,6 +1,19 @@
@echo off
echo Starting Langflow build and run process...
REM Check if .env file exists and set env file parameter
set "ENV_FILE_PARAM="
REM Get the script directory and resolve project root
for %%I in ("%~dp0..\..") do set "PROJECT_ROOT=%%~fI"
set "ENV_PATH=%PROJECT_ROOT%\.env"
if exist "%ENV_PATH%" (
echo Found .env file at: %ENV_PATH%
set "ENV_FILE_PARAM=--env-file \"%ENV_PATH%\""
) else (
echo .env file not found at: %ENV_PATH%
echo Langflow will use default configuration
)
echo.
echo Step 1: Installing frontend dependencies...
cd ..\..\src\frontend
@ -72,7 +85,11 @@ echo Step 4: Running Langflow...
echo.
echo Attention: Wait until uvicorn is running before opening the browser
echo.
uv run langflow run
if defined ENV_FILE_PARAM (
uv run langflow run %ENV_FILE_PARAM%
) else (
uv run langflow run
)
if errorlevel 1 (
echo Error: Failed to run langflow
pause
@ -81,4 +98,4 @@ if errorlevel 1 (
echo.
echo Langflow build and run process completed!
pause
pause