Daily micro-tips for C#, SQL, performance, and scalable backend engineering.
Tired of catching bugs in code review? Git hooks automatically validate code before it even reaches the repository. #!/bin/bash # .git/hooks/pre-commit # Exit immediately if any command fails set -e echo “🚀 Running pre-commit checks…” # 1. Check for debugging statements echo “🔍 Checking for console.log statements…” if git diff –cached –name-only | xargs grep […]
Your git history looking like a war zone? Interactive rebase transforms chaotic commits into a clean, logical story. The Problem: Spaghetti Commit History # Typical messy history $ git log –oneline a1b2c3d Fix typo in README e4f5g6h Update config again h7i8j9k Another attempt k0l1m2n Revert previous change n3o4p5q Merge branch ‘feature-x’ p6q7r8s WIP: trying something […]
Accidentally committed API keys or passwords? Deleting the file in a new commit doesn’t remove it from history. Here’s how to purge it completely. ⚠️ The Problem: # You committed config.json with API key git add config.json git commit -m “Add config” git push # Then realized mistake and deleted it git rm config.json git […]
Committed too early or to wrong branch? Here’s how to undo commits without losing your work, depending on whether you’ve pushed or not. Scenario 1: Undo Last Commit (Not Pushed Yet) # Keep changes in working directory (most common) git reset –soft HEAD~1 # Now your changes are uncommitted, ready to re-commit # Use case: […]
Accidentally did ‘git reset –hard’ and lost hours of work? Your commits aren’t deleted – they’re just orphaned. Here’s how to find them. The Magic Command – Reflog: git reflog This shows every HEAD movement in your repository, even deleted commits. Output looks like: a1b2c3d HEAD@{0}: reset: moving to HEAD~3 e4f5g6h HEAD@{1}: commit: Added user […]
Big commits don’t just slow reviews. Real damage Breaks git bisect Makes rollback risky Hides causal relationships Rule One commit = one reason. Mental model If you can’t describe the commit in one sentence, it’s too big.
git pull = fetch + mergeYou lose control. Better git fetch git rebase origin/main Why Cleaner history Fewer merge commits Easier rollback Rule Explicit is safer than automatic.