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Table of Contents
Preface 1. Repositories and Branches How to get a git repository How to check out a different version of a project Understanding History: Commits Understanding history: commits, parents, and reachability Understanding history: History diagrams Understanding history: What is a branch? Manipulating branches Examining an old version without creating a new branch Examining branches from a remote repository Naming branches, tags, and other references Updating a repository with git fetch Fetching branches from other repositories 2. Exploring git history How to use bisect to find a regression Naming commits Creating tags Browsing revisions Generating diffs Viewing old file versions Examples Counting the number of commits on a branch Check whether two branches point at the same history Find first tagged version including a given fix Showing commits unique to a given branch Creating a changelog and tarball for a software release Finding commits referencing a file with given content 3. Developing with git Telling git your name Creating a new repository How to make a commit Creating good commit messages Ignoring files How to merge Resolving a merge Getting conflict-resolution help during a merge Undoing a merge Fast-forward merges Fixing mistakes Fixing a mistake with a new commit Fixing a mistake by rewriting history Checking out an old version of a file Temporarily setting aside work in progress Ensuring good performance Ensuring reliability Checking the repository for corruption Recovering lost changes 4. Sharing development with others Getting updates with git pull Submitting patches to a project Importing patches to a project Public git repositories Setting up a public repository Exporting a git repository via the git protocol Exporting a git repository via http Pushing changes to a public repository What to do when a push fails Setting up a shared repository Allowing web browsing of a repository Examples Maintaining topic branches for a Linux subsystem maintainer 5. Rewriting history and maintaining patch series Creating the perfect patch series Keeping a patch series up to date using git rebase Rewriting a single commit Reordering or selecting from a patch series Other tools Problems with rewriting history Why bisecting merge commits can be harder than bisecting linear history 6. Advanced branch management Fetching individual branches git fetch and fast-forwards Forcing git fetch to do non-fast-forward updates Configuring remote branches 7. Git concepts The Object Database Commit Object Tree Object Blob Object Trust Tag Object How git stores objects efficiently: pack files Dangling objects Recovering from repository corruption The index 8. Submodules Pitfalls with submodules 9. Low-level git operations Object access and manipulation The Workflow working directory -> index index -> object database object database -> index index -> working directory Tying it all together Examining the data Merging multiple trees Merging multiple trees, continued 10. Hacking git Object storage format A birds-eye view of Git’s source code 11. GIT Glossary A. Git Quick Reference Creating a new repository Managing branches Exploring history Making changes Merging Sharing your changes Repository maintenance B. Notes and todo list for this manual
