Write history, keep a diary
summary
Argues git is a diary not a backup and claims atomic, documented commits let future developers reconstruct intent; demonstrates using git add -p to stage chunks, git commit --amend and git rebase -i to rewrite history (demo creates and resolves a conflict), cites a 150 million-commit analysis showing top messages like "initial commit" and "update readme", prescribes the 50/72 char rule and imperative subjects, and recommends commit hooks, ticket IDs, git log -S and git blame to find who changed what and why.
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