@echo off
setlocal enabledelayedexpansion
REM Check if we're in a git repository
git rev-parse --git-dir >nul 2>&1
if %ERRORLEVEL% NEQ 0 (
echo Error: Not in a git repository
exit /b 1
)
REM Detect default branch or use environment variable
if defined BASE_BRANCH (
set DEFAULT_BRANCH=%BASE_BRANCH%
) else (
REM Try to detect the default branch from origin
for /f "tokens=3" %%i in ('git symbolic-ref refs/remotes/origin/HEAD 2^>nul') do (
for /f "tokens=2 delims=/" %%j in ("%%i") do set DEFAULT_BRANCH=%%j
)
REM Fallback to common defaults if detection fails
if not defined DEFAULT_BRANCH (
git rev-parse --verify origin/main >nul 2>&1
if %ERRORLEVEL% EQU 0 (
set DEFAULT_BRANCH=main
) else (
git rev-parse --verify origin/master >nul 2>&1
if %ERRORLEVEL% EQU 0 (
set DEFAULT_BRANCH=master
) else (
echo Error: Could not detect default branch. Set BASE_BRANCH environment variable.
exit /b 1
)
)
)
)
echo Using base branch: %DEFAULT_BRANCH%
REM Check if PR_Info folder exists, create if not
if not exist PR_Info (
echo Creating PR_Info folder...
mkdir PR_Info
)
REM Create temporary file with unique name for large diffs
set TEMP_FILE=%TEMP%\pr_summary_%RANDOM%_%TIME:~6,2%%TIME:~9,2%.txt
REM Generate git diff and create PR summary prompt
(
echo Please read the information in folder `PR_Info` ^(if any^) and review the code changes ^(git output^)
echo Can you please create a limited size summary for a pull request?
echo Please do not refer to the files in `PR_Info` directly !
echo Please save the pull request summary in markdown file ^(as `PR_Info\summary.md`^) so that I can easily copy/paste it.
echo Last step, delete all files from folder `PR_Info`
echo.
echo === GIT DIFF ===
echo.
git diff --unified=5 --no-prefix %DEFAULT_BRANCH%...HEAD
) > %TEMP_FILE%
REM Check file size (warn if > 500KB)
for %%A in ("%TEMP_FILE%") do set FILE_SIZE=%%~zA
if %FILE_SIZE% GTR 512000 (
echo Warning: Diff is large ^(%FILE_SIZE% bytes^). Clipboard may have limitations.
)
REM Copy to clipboard
type %TEMP_FILE% | clip
REM Clean up
del %TEMP_FILE%
echo PR summary prompt with git diff copied to clipboard!
echo Paste it in the LLM to generate a pull request summary.
exit /b 0
