Git hooks adalah skrip yang dijalankan oleh Git secara otomatis pada titik-titik tertentu dalam alur kerja Git (sebelum/sesudah commits, pushes, merges, dll.). Mereka memungkinkan otomasi — menegakkan standar, menjalankan pemeriksaan, dan memicu tindakan — dan banyak digunakan untuk kualitas kode dan integrasi CI.
Apa itu hooks
Hooks are executable scripts in .git/hooks/ (or managed by tools) that Git runs on EVENTS:
CLIENT-SIDE (local):
pre-commit → before a commit is created (lint, format, run quick tests)
commit-msg → validate/format the commit message
pre-push → before pushing (run tests, prevent pushing broken code)
post-merge/checkout → after merge/checkout (e.g. reinstall dependencies)
SERVER-SIDE (on the remote):
pre-receive / update → enforce policies on push (reject bad pushes)
post-receive → trigger deployment/CI/notifications after a push
