Pro Git

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Pro Git (New Edition) Pub. Date: 8/27/2009 Publisher: Apress

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More About This Book

Overview
Product Details
Meet the Author
Table of Contents

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Overview

Git is the version control system developed by Linus Torvalds for Linux kernel development. It took the open source world by storm since its inception in 2005, and is used by small development shops and giants like Google, Red Hat, and IBM, and of course many open source projects.

A book by Git experts to turn you into a Git expert
Introduces the world of distributed version control
Shows how to build a Git development workflow

What you’ll learn

Use Git as a programmer or a project leader
Become a fluent Git user
Use distributed features of Git to the full
Acquire the ability to insert Git in the development workflow
Migrate programming projects from other SCMs to Git
Learn how to extend Git

Who this book is for

This book is for all open source developers: you are bound to encounter Git somewhere in the course of your working life. Proprietary software developers will appreciate Git’s enormous scalability, since it is used for the Linux project, which comprises thousands of developers and testers.

Table of Contents

Getting Started
Git Basics
Git Branching
Git on the Server
Distributed Git
Git Tools
Customizing Git
Git and Other Systems
Git Internals

Product Details

ISBN-13: 9781430218333
Publisher: Apress
Publication date: 8/27/2009
Edition description: New Edition
Edition number: 1
Pages: 288
Sales rank: 190,681
Product dimensions: 7.00 (w) x 9.10 (h) x 1.00 (d)

Meet the Author

A biography is not available for this author.

Foreword xv

About the Author xvii

About the Technical Reviewer xviii

Acknowledgments xix

Introduction xxi

Chapter 1 Getting Started 1

About Version Control 1

Local Version Control Systems 2

Centralized Version Control Systems 3

Distributed Version Control Systems 4

A Short History of Git 5

Git Basics 5

Snapshots, Not Differences 6

Nearly Every Operation Is Local 7

Git Has Integrity 7

Git Generally Only Adds Data 7

The Three States 8

Installing Git 9

Installing from Source 9

Installing on Linux 10

Installing on Mac 10

Installing on Windows 11

First-Time Git Setup 11

Your Identity 11

Your Editor 12

Your Diff Tool 12

Checking Your Settings 12

Getting Help 13

Summary 13

Chapter 2 Git Basics 15

Getting a Git Repository 15

Initializing a Repository in an Existing Directory 15

Cloning an Existing Repository 16

Recording Changes to the Repository 16

Checking the Status of Your Files 17

Tracking New Files 18

Staging Modified Files 18

Ignoring Files 20

Viewing Your Staged and Unstaged Changes 20

Committing Your Changes 23

Skipping the Staging Area 24

Removing Files 24

Moving Files 25

Viewing the Commit History 26

Limiting Log Output 30

Using a GUI to Visualize History 31

Undoing Things 32

Changing Your Last Commit 32

Unstaging a Staged File 33

Unmodifying a Modified File 34

Working with Remotes 35

Showing Your Remotes 35

Adding Remote Repositories 36

Fetching and Pulling from Your Remotes 36

Pushing to Your Remotes 37

Inspecting a Remote 37

Removing and Renaming Remotes 38

Tagging 38

Listing Your Tags 39

Creating Tags 39

Verifying Tags 41

Tagging Later 42

Sharing Tags43

Tips and Tricks 43

Auto-Completion 43

Git Aliases 44

Summary 45

Chapter 3 Git Branching 47

What a Branch Is 47

Basic Branching and Merging 53

Basic Branching 53

Basic Merging 57

Basic Merge Conflicts 58

Branch Management 60

Branching Workflows 61

Long-Running Branches 62

Topic Branches 63

Remote Branches 64

Pushing 68

Tracking Branches 69

Deleting Remote Branches 69

Rebasing 70

The Basic Rebase 70

More Interesting Rebases 72

The Perils of Rebasing 74

Summary 77

Chapter 4 Git on the Server 79

The Protocols 79

Local Protocol 80

The SSH Protocol 81

The Git Protocol 81

The HTTP/S Protocol 82

Getting Git on a Server 83

Putting the Bare Repository on a Server 84

Small Setups 85

SSH Access 85

Generating Your SSH Public Key 85

Setting Up the Server 86

Public Access 88

GitWeb 90

Gitosis 91

Git Daemon 95

Hosted Git 96

GitHub 97

Setting Up a User Account 97

Creating a New Repository 99

Importing from Subversion 101

Adding Collaborators 102

Your Project 103

Forking Projects 104

GitHub Summary 105

Summary 105

Chapter 5 Distributed Git 107

Distributed Workflows 107

Centralized Workflow 107

Integration-Manager Workflow 108

Dictator and Lieutenants Workflow 109

Contributing to a Project 110

Commit Guidelines 111

Private Small Team 112

Private Managed Team 118

Public Small Project 124

Public Large Project 127

Summary 129

Maintaining a Project 130

Working in Topic Branches 130

Applying Patches from E-mail 130

Checking Out Remote Branches 133

Determining What Is Introduced 134

Integrating Contributed Work 135

Tagging Your Releases 140

Generating a Build Number 141

Preparing a Release 141

The Shortlog 142

Summary 142

Chapter 6 Git Tools 143

Revision Selection 143

Single Revisions 143

Commit Ranges 147

Interactive Staging 150

Stashing 153

Stashing Your Work 154

Creating a Branch from a Stash 156

Rewriting History 156

Changing the Last Commit 156

Changing Multiple Commit Messages 157

Reordering Commits 158

Squashing a Commit 159

Splitting a Commit 160

The Nuclear Option: filter-branch 160

Debugging with Git 162

File Annotation 162

Binary Search 163

Submodules 165

Starting with Submodules 165

Cloning a Project with Submodules 167

Superprojects 169

Issues with Submodules 169

Subtree Merging 171

Summary 173

Chapter 7 Customizing Git 175

Git Configuration 175

Basic Client Configuration 176

Colors in Git 178

External Merge and Diff Tools 179

Formatting and Whitespace 181

Server Configuration 183

Git Attributes 184

Binary Files 184

Keyword Expansion 186

Exporting Your Repository 189

Merge Strategies 190

Git Hooks 190

Installing a Hook 190

Client-Side Hooks 191

Server-Side Hooks 192

An Example Git-Enforced Policy 193

Server-Side Hook 193

Client-Side Hooks 199

Summary 202

Chapter 8 Git and Other Systems 203

Git and Subversion 203

git svn 203

Setting Up 204

Getting Started 204

Committing Back to Subversion 206

Pulling in New Changes 207

Git Branching Issues 208

Subversion Branching 209

Subversion Commands 210

Git-Svn Summary 212

Migrating to Git 212

Importing 213

Perforce 214

A Custom Importer 216

Summary 221

Chapter 9 Git Internals 223

Plumbing and Porcelain 223

Git Objects 224

Tree Objects 226

Commit Objects 228

Object Storage 231

Git References 232

The HEAD 233

Tags 234

Remotes 235

Packfiles 235

The Refspec 238

Pushing Refspecs 239

Deleting References 240

Transfer Protocols 240

The Dumb Protocol 240

The Smart Protocol 242

Downloading Data 243

Maintenance and Data Recovery 244

Maintenance 244

Data Recovery 245

Removing Objects 247

Summary 250

Appendix Creative Commons Legal Code 251

Index 259

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