IT-SDK-Git

Plan

• Initial
• create files & folders & branches
• del files & folders & braches
• merge branches
• revert changes

Resource

• https://help.github.com/en/github/using-git
• https://www.atlassian.com/git/tutorials/setting-up-a-repository
• https://fedoraproject.org/wiki/Git_quick_reference
• https://www.git-tower.com/learn/git/ebook/en/command-line/advanced-topics/merge-conflicts
• https://hackernoon.com/understanding-git-index-4821a0765cf
• https://docs.gitlab.com/ee/topics/git/numerous_undo_possibilities_in_git/
• Git-Branching-Game: https://learngitbranching.js.org/
• https://www.toptal.com/software/trunk-based-development-git-flow
• Cheat-Sheet: https://github.github.com/training-kit/downloads/de/github-git-cheat-sheet/
• Cheat-Sheet: https://www.atlassian.com/git/tutorials/atlassian-git-cheatsheet

ssh

type %userprofile%\.ssh\id_rsa.pub | clip
cat %userprofile%\.ssh\id_rsa.pub | clip

$ ssh -T git@github.com
$ ssh -T git@bitbucket.org
$ git remote set-url origin git@github.com:username/your-repository.git

Settings

$ git config --list
$ git config --global --edit
...
$ git config --global http.proxy $PROXY_URL
$ git config --global https.proxy $PROXY_URL
...
$ git config --global user.name "Samer Hijazi"
$ git config --global user.email "samer.hijazi@samerhijazi.net"
...
$ git config --global core.autocrlf true       # Working on Windows, Linux, macOS Maschines.
$ git config --global core.autocrlf false      # Working just Windows Machine.
$ git config --global core.longpaths true
...
$ git config --global core.editor "'C:/Program Files/Notepad++/notepad++.exe' -multiInst -notabbar -nosession -noPlugin"
...
$ git config --global diff.tool bc
$ git config --global difftool.bc.path "C:/Program Files/Beyond Compare 4/bcomp.exe"
...
$ git config --global merge.tool bc
$ git config --global mergetool.bc.path "C:/Program Files/Beyond Compare 4/bcomp.exe"
...
$ git config --global alias.cp '!git commit -a -m "Update" && git push'
...
$ git commit --amend --reset-author

Credential

• default: no cache at all
• cache: keeps credentials in memory for a certain period of time.
• store: saves the credentials to a plain-text file on disk.
• Mac-Chain: in Mac caches credentials in the secure keychain "osxkeychain".
• Windows-Chain: in Windows caches credentials in the secure keychain.

git config --global credential.helper unset ...........................# remove stored password
git config --global credential.helper store ...........................# save entered password
git config --global credential.helper cache
git config --global credential.helper 'store --file ~/.my-credentials'
git config --global credential.helper manager
git config --global credential.helper wincred
git config --global --edit
...
git credential-manager version

Initial

git init --bare         # Initial Repo for remote
git init                # Initial Repo for local
...
git remote add origin https://samerhijazi@gitlab.com/samerhijazi/public.git

git clone ssh://ssh-w0000000@servername.com/www/htdocs/w0000000/repository/git/projectname.git
git pull
git add README.md
git commit -m "First commit"
git push -u origin master

Life Cycle

Clone

git clone https://github.com/samerhijazi/automation.git -b branchname ./local-folder
git clone ssh://ssh-w0000000@servername.com/www/htdocs/w0000000/repository/git/projectname.git

Branch

• Checkout

$ git branch -a						# list all branches
$ git branch -r						# list all updated branches
...
$ git checkout <exiting-branch>				# checkout exiting branch
$ git checkout -b <new-branch>				# create a new branch from HEAD and then checkout <new-branch>
$ git checkout -b <new-branch> <existing-branch>	# create a new branch from <existing-branch> and then checkout <new-branch>
$ git push --set-upstream origin <new-branch>           # Push the current branch and set the remote as upstream
$ 

• Rename

$ git branch -m <old-branch> <new-branch>		# To rename a local branch
$ git push origin -u <new-branch> :<old-branch>		# To rename a remote branch

• Delete

$ git branch -d <branch_to_delete>			# Delete a branch local
$ git push origin --delete <branch_to_delete>		# Delete a branch remote

Remote

$ git remote -v						# View existing remotes
$ git remote rename origin destination			# Change remote name from 'origin' to 'destination'
...
$ git fetch						# Update the list of remote branches
$ git fetch --prune					# Remove remote branches that not longer have a counterpart.
...
$ git remote prune origin --dry-run
$ git remote prune origin

Taging

$ git tag -d $(git tag -l)	         # Delete All local tags. (Optional Recommended)
$ git fetch				 # Fetch remote All tags. (Optional Recommended)
$ git push origin --delete $(git tag -l) # Delete All remote tags. Pushing once should be faster than multiple times
$ git tag -d $(git tag -l)	         # Delete All local tags.

Remove & Rename Files

$ git checkout $NAME_BRANCH
$ git rm -r $NAME_FILE ...................... # remove file
$ git mv $NAME_FILE_OLD $NAME_FILE_NEW ...... # rename file
$ git commit -m "My Massage"
$ git push origin $NAME_BRANCH
...
$ git clean -fd   # remove directories forced

Reset

$ git stash  # Save all local changes und remove them from workspace. 
$ git fetch  # fetch from the default remote, origin
$ git reset --hard origin/master # reset your current branch (master) to origin's master

Merge

$ git checkout <branch_merge_to>           # change to branch where the merge will be done
$ git merge --no-ff <branch_merge_from>    # merge <branch_merge_from> in <branch_merge_to>
$ git push
...
$ git merge --abort   # returen to the state before starting the merge.
$ git reset --hard    # roll back to the commit before the merge.

Checkout

$ git pull
$ git pull --rebase origin master ............... # get changes from remote master. And commit it for local/user commit.
$ git push --force-with-lease ................... # To avoid overwrite history from rebase, Lease entsure that history dokumented. 

Git branching model

• src: http://blog.plasticscm.com/2017/04/how-we-do-trunk-based-development.html
• src: https://cloud.google.com/solutions/devops/devops-tech-trunk-based-development
• src: https://medium.com/safetycultureengineering/trunks-are-not-just-for-trees-from-git-flow-to-trunk-based-development-949d580697ef
• src: https://trunkbaseddevelopment.com/
• src: https://nvie.com/posts/a-successful-git-branching-model/
• src: https://medium.com/@patrickporto/4-branching-workflows-for-git-30d0aaee7bf
• src: https://guides.github.com/introduction/flow/index.html
• src: https://www.youtube.com/watch?v=1SXpE08hvGs
• Hauptbraches: master & develop
• Arbeitbraches: feature, release, hotfixes

Branch Feature

$ git checkout -b myfeature develop
...
$ git checkout develop
$ git merge --no-ff myfeature
$ git branch -d myfeature
...
$ git push origin develop

Branch Release

$ git checkout -b release-1.2 develop
$ git commit -a -m "Bumped version number to 1.2"
...
$ git checkout master
$ git merge --no-ff release-1.2
$ git tag -a 1.2
...
$ git checkout develop
$ git merge --no-ff release-1.2
$ git branch -d release-1.2

Branch HotFix

$ git checkout -b hotfix-1.2.1 master
$ git commit -a -m "Bumped version number to 1.2.1"
...
$ git checkout master
$ git merge --no-ff hotfix-1.2.1
$ git tag -a 1.2.1
...
$ git checkout develop
$ git merge --no-ff hotfix-1.2.1
$ git branch -d hotfix-1.2.1

CICD

git --no-pager show -s --format=\'%ae\'           # Disaply email address last commit
git config user.name                              # Dispaly email address user