About

• Take Robottlo repo as an example, introduce the steps for contributing to repositories on Github

Git config

• Create SSH key

  $ ssh-keygen -t rsa -C "youremail@example.com"
  cat ~/.ssh/id_rsa.pub
  

• Login GitHub > Account Settings > SSH and GPG Keys > SSH keys > New SSH key > Add SSH key
• Config username and email

  $ git config user.name “username”
  $ git config user.email “username@emil.con”
  $ git config --list
  

Create Env

• Clone the repositories

git clone git://github.com/SatelliteQE/robottelo.git

• Create a independent env

virtualenv venv
source venv/bin/activate
(venv) $

Contribut to GitHub

Fork it

• Show remote repositories

(master) $ git remote -v
origin	git@github.com:hkx303/robottelo.git (fetch)
origin	git@github.com:hkx303/robottelo.git (push)

• Add Robottelo as a remote repository to your fork

(master) $ git remote add upstream git@github.com:SatelliteQE/robottelo.git

• check it again

(master) $ git remote -v
origin	git@github.com:hkx303/robottelo.git (fetch)
origin	git@github.com:hkx303/robottelo.git (push)
upstream	git@github.com:SatelliteQE/robottelo.git (fetch)
upstream	git@github.com:SatelliteQE/robottelo.git (push)

• Fetch latest upstream code

(master) $ git fetch upstream

• Rebase your fork’s master repo to match upstream’s

(master) $ git rebase upstream/master

Branch it before you work

• Create new local repo to work on issue or feature

(master) $ git checkout -b branch_name

or

(master) $ git branch branch_name   
(master) $ git checkout branch_name

• Show your changes

(branch_name) $ git status
(branch_name) $ git diff

• Make all your changes in the local branch_name repo and commit with a nice, short subject and a detailed message

(branch_name) $ git add <all modified or new files>
(branch_name) $ git commit

 Add more information about what the entire commit is about.

Push it

• use pycodestyle-3 to check the code style

  pip install pycodestyle-3
  

• check code

  pycodestyle-3 --show-source --first <filename>
  

• Push your changes for a PR

  (branch_name) $ git push origin branch_name
  

• Create a Pull Request through the github link

Updating a Pull Request

• Need to make more changes either because you received feedback for your PR or because you’re not done yet?

  (branch_name) $ pycodestyle-3 --show-source --first <filename>
  (branch_name) $ git add <files>
  (branch_name) & git commit -m "messages"
  (branch_name) $ git push origin branch_name
  

PR cannot be merged

• First, let’s rebase your master to reflect upstream’s master

  (branch_name) $ git checkout master
  (master) $ git fetch upstream
  (master) $ git rebase upstream/master
  (master) $ git push
  

• Now, let’s rebase our working directory against your master

  (master) $ git checkout branch_name
  (branch_name) $ git rebase master
  

• Push your rebased branch_name back to Github

  (branch_name) $ git push origin branch_name
  

• Git complaining about rebase because commit history is being changed? Use the --force Luke

  (branch_name) $ git push origin branch_name --force
  

Undo my commit

• So you made changes to FILE but you changed your mind and want to revert your changes? Don’t want to preserve your changes either?

  (branch_name) $ git checkout -- FILE
  

• So you made changes to FILE, ran git add FILE but you changed your mind and want to revert your changes? Want to preserve your changes?

  (branch_name) $ git reset HEAD FILE
  

• So you went ahead and committed your changes and everything is ‘staged’, but you changed your mind and want to ‘unstage’ it?
  • If you want to preserve your changes so that you can continue working on them:

  (branch_name) $ git reset --soft HEAD~
  

  • If you don’t want to preserve your changes:

  (branch_name) $ git reset --hard HEAD~
  

NOTE: Please note that HEAD~ represents ‘the last commit’. If you want to undo the last 3 commits, then change HEAD~ to HEAD~3.

Other usages for Git

Show history

• Show git history

  git log
  

• Show git history and reduce output messages

  git reflog
  

• Show git history command

  git reflog
  

• Show git branch graph

  git log --graph
  

Branch

• Merge branch to current branch

  git merge <branch_name>
  

• Delete branch

  git branch -d <branch_name>
  

Git remove

$ git rm test.txt
rm 'test.txt'

$ git commit -m "remove test.txt"

Git stash

• Stash the changes in a dirty working directory away

  $ git stash
  

• Check stash list

  $ git stash list
  

• Restore the stash and do not delete it

  $  git stash apply
  

• Restore the stash and delete it

  $ git stash pop
  

• Restore the expected stash

  $ git stash apply stash@{0}
  

cherry-pick

• Copy commit to current branch

  $ git cherry-pick 4c805e2
  

Reference

How To Contribute

最后

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