Git in 10 minutes

Dec 15, 2014Download as PPTX, PDF1 like1,874 views

This document provides a summary of Git in 10 minutes. It begins with an overview and breakdown of the content which includes explanations of what Git is, how it works, the GitHub flow, frequently used commands, confusions around undoing changes, and useful links. The body then delves into each section providing more details on Distributed version control, local vs remote operations, the GitHub flow process, example commands for undoing changes, and resources for additional learning.

Git in 10 minutes
- eliminate confusions

Content
�� What is git? - 30 seconds
�� How it works? - 2 minutes
�� Github flow - 3 minutes
�� Frequently Used Commands - 2 minutes
�� Confusions on Undo- 2 minutes
�� Useful links - 30 seconds

Git
�� Distributed version control system
Although git allows to have multiple remote repositories, usually we maintain only one remote
repository, that is ��origin��.
Associated command: git remote -v

How it works
Nearly all operations are local.
- git branch
- git checkout
- git status
- git commit
- git merge
Remote operations
- git pull (Actually: git fetch + git merge)
- git push

Github flow
1.Create branch 2.Commit 3.Pull request 4.Commit 5. Merge to master

Github flow & our toppings
1. Create branch
git checkout master
git pull
git checkout -b feature1
2.Commit
git add filename.php
git commit
git push -u origin feature1
3. Pull request : Not directly connected to git operation
4.Commit
git add filename.php
git commit
git push
5.Merge to master
git checkout master
git pull
git merge feature1
git push

Frequently Used Commands
�� If you have done so many unnecessary changes in different files and now you want to discard all the changes ( before
working at cool mind ) :
git reset --hard
�� Another most used command that is very useful when did commit but that was a mistake. What will you do?
If you want to remove your last commit that has not been pushed yet:
git reset --hard HEAD^
�� To view unpushed git commits
git log origin/master..HEAD
�� To create a local branch that will track remote branch
git checkout -t origin/branchname
�� To see all commits of someone
git log --author=Jon
�� To see all commits since last 2 weeks
git log --since=2.weeks
�� To see the diff of a file which has already been added to stage
git diff --cached example.txt

Confusions
Undo:
Action Command Output
M git checkout filename -
M > S git reset HEAD filename M
M > S > C git reset --soft HEAD^ S
M > S > C git reset --mixed HEAD^ M
M > S > C git reset --hard HEAD^ -
M > S > C > P git reset --hard HEAD^
git push -f origin branch-name
-
M = Modified
S = Staged
C = Committed
P = Pushed

Confusions
Undo:
Delete local branch: git branch -d branch-name
Delete remote branch: git push origin --delete branch-name
git cherry
git checkout production_branch
git cherry dev_branch
git cherry-pick 62ecb3

Useful links
�� http://git-scm.com/book/en/v2
�� http://rogerdudler.github.io/git-guide/
�� https://www.codeschool.com/courses/try-git
�� http://www.pranjol.com/blog/66
�� stackoverflow and google :)

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Git in 10 minutes

1. Git in 10 minutes - eliminate confusions

2. Content �� What is git? - 30 seconds �� How it works? - 2 minutes �� Github flow - 3 minutes �� Frequently Used Commands - 2 minutes �� Confusions on Undo- 2 minutes �� Useful links - 30 seconds

3. Git �� Distributed version control system Although git allows to have multiple remote repositories, usually we maintain only one remote repository, that is ��origin��. Associated command: git remote -v

4. Git

5. How it works Nearly all operations are local. - git branch - git checkout - git status - git commit - git merge Remote operations - git pull (Actually: git fetch + git merge) - git push

6. How it works

7. Github flow 1.Create branch 2.Commit 3.Pull request 4.Commit 5. Merge to master

8. Github flow & our toppings 1. Create branch git checkout master git pull git checkout -b feature1 2.Commit git add filename.php git commit git push -u origin feature1 3. Pull request : Not directly connected to git operation 4.Commit git add filename.php git commit git push 5.Merge to master git checkout master git pull git merge feature1 git push

9. Frequently Used Commands �� If you have done so many unnecessary changes in different files and now you want to discard all the changes ( before working at cool mind ) : git reset --hard �� Another most used command that is very useful when did commit but that was a mistake. What will you do? If you want to remove your last commit that has not been pushed yet: git reset --hard HEAD^ �� To view unpushed git commits git log origin/master..HEAD �� To create a local branch that will track remote branch git checkout -t origin/branchname �� To see all commits of someone git log --author=Jon �� To see all commits since last 2 weeks git log --since=2.weeks �� To see the diff of a file which has already been added to stage git diff --cached example.txt

10. Confusions Undo: Action Command Output M git checkout filename - M > S git reset HEAD filename M M > S > C git reset --soft HEAD^ S M > S > C git reset --mixed HEAD^ M M > S > C git reset --hard HEAD^ - M > S > C > P git reset --hard HEAD^ git push -f origin branch-name - M = Modified S = Staged C = Committed P = Pushed

11. Confusions Undo: Delete local branch: git branch -d branch-name Delete remote branch: git push origin --delete branch-name git cherry git checkout production_branch git cherry dev_branch git cherry-pick 62ecb3

12. Useful links �� http://git-scm.com/book/en/v2 �� http://rogerdudler.github.io/git-guide/ �� https://www.codeschool.com/courses/try-git �� http://www.pranjol.com/blog/66 �� stackoverflow and google :)

13. Thank you

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Git in 10 minutes

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Git in 10 minutes