COMMIT_EDITMSG is a temporary system file created by Git to store your commit message while you are editing it. It acts as a staging ground for the text you write before it becomes a permanent part of the repository's history. 🛠️ How It Works
| Problem | Example | Fix | |---------|---------|-----| | Empty or missing | (no body) | Add why and how for non-obvious changes | | Just repeats subject | “Fix login bug – fixed the login bug” | Delete redundancy | | No reasoning | “Changed max length from 50 to 100” | “Increase max length to 100 because API now accepts up to 100 chars” | | Internal references missing | “Fixes issue” | “Fixes #427 – rate limiting on mobile” | | No “why” for breaking changes | “Changed config format” | “BREAKING CHANGE: config uses YAML instead of JSON – migration script in /docs” | COMMIT-EDITMSG
COMMIT-EDITMSG SessionTo truly appreciate the file, let's walk through a manual commit. Imagine you have staged changes. You run git commit. Your editor opens, and you see something like this: COMMIT_EDITMSG is a temporary system file created by
Finalization: Once you save and close the editor, Git reads the content of COMMIT_EDITMSG, ignores the commented lines, and uses the rest as your official commit message. Finalization: Once you save and close the editor,