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Git: It's Better. Trust Me.
- 1. GIT It’s better. Trust me.
- 2. “...is GIT really better than Subversion?”
- 3. “...is GIT really better than Subversion?”
- 4. History Linus Torvalds
- 5. History Linus Torvalds
- 6. History I hate CVS! I like BitKeeper, but it’s not open. Linus Torvalds
- 7. History I hate CVS! I like BitKeeper, but it’s not open. Linus Torvalds
- 8. History I hate CVS! I like BitKeeper, but it’s not open. Wait a minute! I made Linux dammit! I should just make my own code repository! ...give me 2.5 months Linus Torvalds
- 9. History I hate CVS! I like BitKeeper, but it’s not open. Wait a minute! I made Linux dammit! I should just make my own code repository! ...give me 2.5 months Ok! All done! Linus Torvalds
- 10. History I hate CVS! I like BitKeeper, but it’s not open. Wait a minute! I made Linux dammit! I should just make my own code repository! ...give me 2.5 months Ok! All done! Linus Torvalds
- 11. History I hate CVS! I like BitKeeper, but it’s not open. Wait a minute! I made Linux dammit! I should just make my own code repository! ...give me 2.5 months Ok! All done! GIT was made to be: Linus Torvalds fast, distributed, non-linear, use existing protocols, and good at merging.
- 12. Branching • Branches are cheap! • Always work in a branch, which is your own little world. • Change didn’t work? Just kill the branch! • They are the key to non-linear development. • You can’t change branches if your workspace isn’t “clean” • Always “checkout”! • Switch Branch: git checkout <branch>
- 13. Committing • In Subversion there is just commit, but in GIT, you commit and push. • GIT is distributed, so you commit locally and then only push to another server when needed. • “status” allows you to see current changes or files not in the repo. • git status • Files must be added to the repo, and if changed, the commit. • git add <filename or path> or add everything to the commit with git commit -a • Set a commit message with -m: git commit -m “Crazy awesome
- 14. Pushing • GIT is distributed! ...but we don’t use it that way. We use a single “origin” that we all push and pull from. • Remember that you commit locally and use “git push” to add your new changes to the origin. • git push origin/<branch> • Remember: • When pushing a shared branch, you must be up-to-date first. • You can never push to master!
- 15. Merging • You use “git merge” to bring a different hash’s changes in to your current branch. • git merge <hash> • You can also use the branch name as a shortcut to it’s latest hash. • After merging, git will output data about the changes merged in.
- 16. Diff • Diff is a way to compare two code changes (or hashes) • git diff <hash1> <hash2> • If you only give the diff command one hash, it will assume you are diff’ing the currently checked
- 17. Demo!
- 18. Config • Your global config lives at: ~/.gitconfig (*nix) • Aliases give you the power of chaining git commands together in one command. • You can also your name & email for commits globally... • ...as well as set color schemes and your diff tool of choice.
- 19. Other Tricks • git reset [--hard] <hash> • Resets your current workspace to a given hash. • git log -<max> • Allows you to see the current branch’s history. • git stash • Allows you to set aside your current changes temporarily. • git stash pop brings your changes back to your current workspace.
- 20. Demo!
- 21. Tools “What’s the fastest and best way to use GIT?”
- 22. Tools “What’s the fastest and best way to use GIT?”
- 23. Tools • Windows • Clients • MsysGIT http://code.google.com/p/msysgit/ • TortoiseGit http://code.google.com/p/tortoisegit/ • Diff Tool • DiffMerge http://www.sourcegear.com/diffmerge/index.html • Mac Tools • Clients • GIT-Y http://gityapp.com/ $0 • Gitbox http://gitboxapp.com/ $39 • Tower http://www.git-tower.com/ $59 • Diff Tool • File Merge (included with XCode)
- 24. Questions?
Notas do Editor
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- The development of Git began on April 3, 2005. The project was announced on April 6, and became self-hosting as of April 7. The first merge of multiple branches was done on April 18. Torvalds achieved his performance goals; on April 29, the nascent Git was benchmarked recording patches to the Linux kernel tree at the rate of 6.7 per second. On June 16, the kernel 2.6.12 release was managed by Git.\n\nFast: Binaries are all fast C apps.\nDistributed: There isn&#x2019;t just one origin, but any GIT client can also serve code.\nNon-Linear: Allow for rapid branching and merging.\nProtocols: Uses FTP, HTTP, or SSH\nMerging: A change is merged more than it&#x2019;s written! Merging branches must be quick and easy.\n
- The development of Git began on April 3, 2005. The project was announced on April 6, and became self-hosting as of April 7. The first merge of multiple branches was done on April 18. Torvalds achieved his performance goals; on April 29, the nascent Git was benchmarked recording patches to the Linux kernel tree at the rate of 6.7 per second. On June 16, the kernel 2.6.12 release was managed by Git.\n\nFast: Binaries are all fast C apps.\nDistributed: There isn&#x2019;t just one origin, but any GIT client can also serve code.\nNon-Linear: Allow for rapid branching and merging.\nProtocols: Uses FTP, HTTP, or SSH\nMerging: A change is merged more than it&#x2019;s written! Merging branches must be quick and easy.\n
- The development of Git began on April 3, 2005. The project was announced on April 6, and became self-hosting as of April 7. The first merge of multiple branches was done on April 18. Torvalds achieved his performance goals; on April 29, the nascent Git was benchmarked recording patches to the Linux kernel tree at the rate of 6.7 per second. On June 16, the kernel 2.6.12 release was managed by Git.\n\nFast: Binaries are all fast C apps.\nDistributed: There isn&#x2019;t just one origin, but any GIT client can also serve code.\nNon-Linear: Allow for rapid branching and merging.\nProtocols: Uses FTP, HTTP, or SSH\nMerging: A change is merged more than it&#x2019;s written! Merging branches must be quick and easy.\n
- The development of Git began on April 3, 2005. The project was announced on April 6, and became self-hosting as of April 7. The first merge of multiple branches was done on April 18. Torvalds achieved his performance goals; on April 29, the nascent Git was benchmarked recording patches to the Linux kernel tree at the rate of 6.7 per second. On June 16, the kernel 2.6.12 release was managed by Git.\n\nFast: Binaries are all fast C apps.\nDistributed: There isn&#x2019;t just one origin, but any GIT client can also serve code.\nNon-Linear: Allow for rapid branching and merging.\nProtocols: Uses FTP, HTTP, or SSH\nMerging: A change is merged more than it&#x2019;s written! Merging branches must be quick and easy.\n
- The development of Git began on April 3, 2005. The project was announced on April 6, and became self-hosting as of April 7. The first merge of multiple branches was done on April 18. Torvalds achieved his performance goals; on April 29, the nascent Git was benchmarked recording patches to the Linux kernel tree at the rate of 6.7 per second. On June 16, the kernel 2.6.12 release was managed by Git.\n\nFast: Binaries are all fast C apps.\nDistributed: There isn&#x2019;t just one origin, but any GIT client can also serve code.\nNon-Linear: Allow for rapid branching and merging.\nProtocols: Uses FTP, HTTP, or SSH\nMerging: A change is merged more than it&#x2019;s written! Merging branches must be quick and easy.\n
- The development of Git began on April 3, 2005. The project was announced on April 6, and became self-hosting as of April 7. The first merge of multiple branches was done on April 18. Torvalds achieved his performance goals; on April 29, the nascent Git was benchmarked recording patches to the Linux kernel tree at the rate of 6.7 per second. On June 16, the kernel 2.6.12 release was managed by Git.\n\nFast: Binaries are all fast C apps.\nDistributed: There isn&#x2019;t just one origin, but any GIT client can also serve code.\nNon-Linear: Allow for rapid branching and merging.\nProtocols: Uses FTP, HTTP, or SSH\nMerging: A change is merged more than it&#x2019;s written! Merging branches must be quick and easy.\n
- The development of Git began on April 3, 2005. The project was announced on April 6, and became self-hosting as of April 7. The first merge of multiple branches was done on April 18. Torvalds achieved his performance goals; on April 29, the nascent Git was benchmarked recording patches to the Linux kernel tree at the rate of 6.7 per second. On June 16, the kernel 2.6.12 release was managed by Git.\n\nFast: Binaries are all fast C apps.\nDistributed: There isn&#x2019;t just one origin, but any GIT client can also serve code.\nNon-Linear: Allow for rapid branching and merging.\nProtocols: Uses FTP, HTTP, or SSH\nMerging: A change is merged more than it&#x2019;s written! Merging branches must be quick and easy.\n
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- 1. cd ~/wa-sandbox\n2. Create branch\n3. Add files\n4. Commit files\n5. Back to master\n6. Make new branch\n7. Add/modify files\n8. Diff\n9. Commit\n10. Back to master\n11. Peer Review! Check diff from master and branch 1.\n12. Switch to branch and make a change.\n13. Commit.\n14. Back to master.\n15. Make CAB branch\n16. Merge in both branches\n17. Push\n
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