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This is excellent for developers who prefer to verify exactly what they are committing while writing the message.
COMMIT_EDITMSG is a temporary file Git creates whenever you run git commit without a message (the -m flag). It acts as a workspace for you to draft, edit, and save your commit message before it's officially added to the project history. How it Works COMMIT-EDITMSG
When you run git commit , Git opens your text editor (Vim, Nano, VS Code, etc.) and asks for a commit message. This is excellent for developers who prefer to
#!/bin/sh # Get the commit message from the temporary file commit_msg_file=$1 commit_msg=$(cat "$commit_msg_file") # Regular expression for conventional commit format regex="^(feat|fix|docs|style|refactor|test|chore)(\(.+\))?: .+" if ! echo "$commit_msg" | grep -Eq "$regex"; then echo "❌ Error: Commit message does not follow Conventional Commits format." echo "Example: feat(auth): add login validation" exit 1 fi Use code with caution. The prepare-commit-msg Hook How it Works When you run git commit
Understanding the lifecycle of a commit helps demystify how this file functions: : You type git commit in your terminal.