Productivity hack of the day: Creating pull requests descriptions from Git diff

# Check if the git command is available

if (-not (Get-Command git -ErrorAction SilentlyContinue)) {

    Write-Host "Git is not installed or not available in the PATH." -ForegroundColor Red

    exit

}



# Ensure we're in a git repository

$gitStatus = git rev-parse --is-inside-work-tree 2>&1

if ($gitStatus -ne "true") {

    Write-Host "This is not a git repository." -ForegroundColor Red

    exit

}



# Get the current branch name

$currentBranch = git rev-parse --abbrev-ref HEAD

if ($currentBranch -eq "main") {

    Write-Host "You are on the 'main' branch. Please switch to a feature branch." -ForegroundColor Yellow

    exit

}



# Fetch the latest changes for the main branch

git fetch origin main



# Get the latest commit on the main branch

$mainCommit = git rev-parse origin/main



# Get the latest commit on the current branch

$currentBranchCommit = git rev-parse HEAD



# Generate the diff between the latest commit on main and the current branch

$diffFileName = "diff.patch"

git diff $mainCommit $currentBranchCommit > $diffFileName



# Check if the diff file was generated successfully

if (Test-Path $diffFileName) {

    Write-Host "Diff file generated successfully: $diffFileName" -ForegroundColor Green

} else {

    Write-Host "Failed to generate diff file." -ForegroundColor Red

}