Difference between revisions of "IT-SDK-Git"

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 +
=Ref.=
 +
* http://blog.jinlaixu.net/books/ProGit/en/index.html
 +
* 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
 +
* https://www.gitignore.io
 +
* JGit: https://www.vogella.com/tutorials/JGit/article.html
 +
* JGit-Cookbook: https://github.com/centic9/jgit-cookbook/
 +
 +
=Configuration=
 +
* '''Layers''':
 +
** Remote-Repo
 +
** Local-Repo
 +
** Staging-Area (Index)
 +
** Working-Area (Directory)
 +
* '''Stages''': worktree, staged(index), HEAD
 +
* HEAD refers to the latest commit in your current '''branch'''.
 +
 +
=Shell & Git=
 +
==Bash (.bashrc)==
 +
<pre class="code">
 +
git_branch() {
 +
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
 +
}
 +
PS1='\[\033[32m\][\w]\[\033[31m\] $(git_branch)\[\033[0m\]\n$ '
 +
</pre>
 +
==Zsh (.zshrc)==
 +
<pre class="code">
 +
git_branch() {
 +
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
 +
}
 +
setopt PROMPT_SUBST
 +
PROMPT='[%F{green}%d%f]%F{red} $(git_branch)%f
 +
$ '
 +
</pre>
 +
==Alternativ==
 +
<pre class="code">
 +
git_branch() {
 +
    branch=$(git symbolic-ref --short HEAD 2> /dev/null)
 +
    if [[ $branch == "" ]]; then
 +
        :
 +
    else
 +
        echo '('$branch')'
 +
    fi
 +
}
 +
</pre>
 +
==Global-Settings==
 +
* https://www.git-scm.com/book/en/v2/Appendix-C%3A-Git-Commands-Setup-and-Config
 +
* https://www.scootersoftware.com/kb/vcs
 +
<pre class="code">
 +
git config --local --list      # List Configs for repos. config file "repo/.git/config"
 +
git config --global --list      # List Configs for global config file "~/.gitconfig"
 +
git config --system --list      # List Configs for System config file "installed/git/etc/gitconfig"
 +
-----------------------------------------------------------------------------------------------------
 +
git config --global --edit                ### Edit Configs
 +
git config --global user.name              ### Show config for user.name
 +
git config --global user.name "King"      ### Set Value "King" to user.name
 +
git config --global --unset user.name      ### Unset saved user.name
 +
git config --global --unset user.password  ### Unset saved user.password
 +
</pre>
 +
<pre class="code">
 +
git config --global user.name "Samer Hijazi"
 +
git config --global user.email "samerhijazi@samerhijazi.net"
 +
-----------------------------------------------------------------------------------------------------
 +
git config --global alias.ss 'status -s'
 +
git config --global alias.sm 'diff --name-only --diff-filter=M'
 +
git config --global alias.sd 'diff --name-only --diff-filter=D'
 +
git config --global alias.rs 'reset --hard origin/master'
 +
git config --global alias.cm 'commit -m'
 +
git config --global alias.cp '!git commit -a -m "Update $1" && git push'
 +
git config --global alias.xx '!git fetch origin && git reset --hard origin/master && git clean -fdx'
 +
git config --global alias.xx '!git checkout -- . && git reset --hard HEAD && git clean -fdx'
 +
-----------------------------------------------------------------------------------------------------
 +
git config --global core.editor "code --wait"
 +
git config --global core.editor "nano"
 +
git config --global core.editor "vim"
 +
git config --global core.editor "'C:/Program Files/Notepad++/notepad++.exe' -multiInst -notabbar -nosession -noPlugin"
 +
-----------------------------------------------------------------------------------------------------
 +
git config --global http.proxy $PROXY_URL
 +
git config --global https.proxy $PROXY_URL
 +
git config --global http.https://devstack.samerhijazi.com/.extraHeader "Authorization: Bearer XXX"
 +
-----------------------------------------------------------------------------------------------------
 +
git config --global core.autocrlf true      # Working on Windows, Linux, macOS Maschines.
 +
git config --global core.safecrlf false      # Disable showing Warnning for LF
 +
git config --global core.longpaths true
 +
git config --global core.compression 9      # compression for speed up push process.
 +
-----------------------------------------------------------------------------------------------------
 +
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 advice.addIgnoredFile false  ### Turen off advice for adding Ignored files
 +
git config --global pull.rebase true              ### Local changes will rebased on top of the changes pulled from the remote branch.
 +
-----------------------------------------------------------------------------------------------------
 +
git commit --amend --reset-author
 +
 +
</pre>
 +
===extras===
 +
<pre class="code">
 +
# https://mattferderer.com/fix-git-self-signed-certificate-in-certificate-chain-on-windows
 +
git config --global http.sslVerify false
 +
git config --global http.https://server.com/.extraHeader "Authorization: Bearer XXXX"
 +
</pre>
 +
 +
==Credential==
 +
===Refs===
 +
* https://github.com/GitCredentialManager/git-credential-manager
 +
* https://github.com/GitCredentialManager/git-credential-manager/blob/main/docs/wsl.md
 +
* https://github.com/GitCredentialManager/git-credential-manager/blob/main/README.md#linux-install-instructions
 +
===Installing===
 +
<pre class="code">
 +
brew install git-credential-manager
 +
brew install --cask git-credential-manager
 +
</pre>
 +
 +
===Settings===
 +
<pre class="code">
 +
git config --global --edit
 +
git config --global credential.helper cache                                      ### keeps credentials in memory for a 15min  (default cache timeout).
 +
git config --global credential.helper 'cache --timeout=3600'                    ### keeps credentials in memory for a 36min.
 +
git config --global credential.helper store                                      ### save entered password in (~/.git-credentials) by default.
 +
git config --global credential.helper 'store --file ~/.my-credentials'
 +
git config --global credential.helper '/usr/local/share/gcm-core/git-credential-manager-core'                ### Set "Git Credential Manager" on Linux.
 +
git config --global credential.credentialStore secretservice                                                  ### GUI Storage für Linux
 +
git config --global credential.helper '/mnt/c/git/mingw64/bin/git-credential-manager-core.exe'  ### Set "Git Credential Manager" on WSL.
 +
</pre>
 +
 +
===ssh===
 +
<pre class="code">
 
type %userprofile%\.ssh\id_rsa.pub | clip
 
type %userprofile%\.ssh\id_rsa.pub | clip
 +
cat %userprofile%\.ssh\id_rsa.pub | clip
 +
</pre>
 +
<pre class="code">
 +
chmod 600 ~/.ssh/key_github
 +
eval "$(ssh-agent -s)"
 +
ssh-add ~/.ssh/key_github
 +
ssh -T git@github.com
 +
</pre>
 +
<pre class="code">
 +
ssh -T git@gitlab.com
 +
ssh -T git@bitbucket.org
 +
git remote set-url origin https://github.com/username/repository-name.git    ### For SSH-Connection
 +
git remote set-url origin git@github.com:username/repository-name.git        ### For HTTPS-Connection
 +
</pre>
 +
==Ignore File (.gitignore)==
 +
* https://www.atlassian.com/git/tutorials/saving-changes/gitignore#git-ignore-patterns
 +
<pre class="code">
 +
*.log            ### Ignores all the files with the extension ".log", wherever they are.
 +
logs/            ### Ignores only the logs folder and its contents in the root directory.
 +
**/logs          ### Ignores any directory named logs and its contents, at any level in the repository.
  
−
git config --global user.name "Samer Hijazi"
+
!logs/file.log    ### un-ignore file.log if it has been ignored by a previous rule.
−
git config --global user.email "Samer.Hijazi.Extern@fiduciagad.de"
+
</pre>
−
git config --global credential.helper cache
+
 
−
git config --global credential.helper 'cache --timeout 28800'
+
=Commands-Core=
−
git config --global credential.helper wincred
+
==LifeCycle==
 +
<pre class="code">
 +
git clone https://github.com/samerhijazi/automation.git -b branchname ./local-folder
 +
git pull
 +
git pull origin master
 +
git add README.md
 +
git commit -m "First commit"
 +
git push -u origin master
 +
</pre>
 +
 
 +
==Initialisieren==
 +
<pre class="code">
 +
git init --bare        # Initial Repo for remote
 +
git init                # Initial Repo for local
 +
--------------------------------------------------------
 +
git remote add origin https://samerhijazi@gitlab.com/samerhijazi/public.git      ### Add URl for remote.
 +
git remote set-url origin https://samerhijazi@gitlab.com/samerhijazi/public.git  ### Change URL for remote.
 +
</pre>
 +
==Clone==
 +
<pre class="code">
 +
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
 +
git clone -b <branchname> <remote-repo-url>
 +
git clone --depth 1 --filter=blob:none <repository-url> <destination-directory>.  ### Clone with leates commint
 +
</pre>
 +
 
 +
==Checkout==
 +
* HEAD reflects 'git checkout'
 +
<pre class="code">
 +
git checkout main          # checkout main-Branch@HEAD
 +
git checkout main^        # moves HEAD 1-commit back from main-Branch
 +
git checkout main~4        # moves HEAD 4-commits back from main-Branch
 +
git branch -f main HEAD~3  # moves (by force) the main-Branch 3-commits back from HEAD.
 +
</pre>
 +
 
 +
==Branch==
 +
* Checkout
 +
<pre class="code">
 +
git branch                                              # list branches local.
 +
git branch -r # list branches remote.
 +
git branch -a # list branches all (local & remote).
 +
---------------------------------------------------------------------------------------------
 +
git branch <branch_name>                                # Create a new Branch
 +
git switch <branch_name>                                # Switch to branch
 +
---------------------------------------------------------------------------------------------
 +
git checkout <branch_name>         # checkout exiting branch
 +
git checkout -b <branch_name>         # create a new branch from HEAD and then it checkout.
 +
git checkout -b <branch_name_new> <branch_name_exists> # create a new branch from $NAME_BRANCH_EXISIT and then checkout $NAME_BRANCH_NEW
 +
---------------------------------------------------------------------------------------------
 +
git push --set-upstream origin <branch_name>            # Push the <branch_name> branch and set the remote as upstream.
 +
</pre>
 +
* Rename
 +
<pre class="code">
 +
git branch -m $NAME_OLD $NAME_NEW            # To rename a local branch
 +
git push origin -u $NAME_OLD :$NAME_NEW # To rename a remote branch
 +
</pre>
 +
* Delete
 +
<pre class="code">
 +
git branch -d <branch_name>         # Delete a branch on local.
 +
git push origin --delete <branch_name>         # Delete a branch on remote.
 +
git push origin :<branch_name>                          # Delete a branch on remote.
 +
</pre>
 +
 
 +
==Merge==
 +
<pre class="code">
 +
git branch -b <sandbox>                    ### Create and checkout a new branch with name "sandbox".
 +
git commit -a -m "Add new code".          ### Add new code in branch "sandbox".
 +
git switch <master>                        ### change to branch "master" where the merge will be done.
 +
git pull                                  ### pull changes from remote.
 +
git diff --name-only <sandbox>            ### display only the names of the files that have differences between branches.
 +
git merge --no-ff <sandbox>                ### merge branch "sandbox" in branch "master".
 +
git tag -a v1.2                            ### Tag the merge.
 +
git push                                  ### push changes in remote.
 +
git branch -d <sandbox>                    ### Delete branch "sandbox".
 +
---------------------------------------------------------------------------------------------------------------------------
 +
git merge --abort                          ### returen to the state before starting the merge.
 +
git reset --hard                          ### roll back to the commit before the merge.
 +
</pre>
 +
 
 +
==Taging==
 +
<pre class="code">
 +
git tag                                      # List tages
 +
git tag -a v2021.09.03 -m "Messages"        # Add tag
 +
git tag -m $TAG_OLD $TAG_NEW                # Rename tag.
 +
git push origin $TAG                        # Push a current tag to remote.
 +
git push origin --tags                      # Push all tags to remote.
 +
---             
 +
git fetch     # Fetch remote All tags.
 +
git tag -d $TAG_TO_DELETE                    # Delete a tag on local.
 +
git push origin :refs/tags/$TAG_TO_DELETE    # Delete a tag on remote variant 1.
 +
git push origin --delete $TAG_TO_DELETE      # Delete a tag on remote variant 2.
 +
---
 +
git tag -d $(git tag -l)             # Delete all local tags.
 +
git push origin --delete $(git tag -l)      # Delete all remote tags.
 +
</pre>
 +
 
 +
==Remove & Rename==
 +
<pre class="code">
 +
git checkout <branch-name>
 +
git rm -r <file-to-remove>                  # remove file
 +
git mv <filename-old> <filename-new>        # rename file
 +
git clean -fd                              # remove directories forced
 +
git commit -m "My Massage"
 +
git push origin <branch-name>
 +
</pre>
 +
 
 +
==Stash==
 +
<pre class="code">
 +
git stash                          # Save all local changes und remove them from workspace.
 +
git fetch                          # fetch from the default remote, origin
 +
</pre>
 +
==Reset==
 +
<pre class="code">
 +
### reset your branch to match the remote branch, discarding local changes and commits:
 +
git fetch origin
 +
git reset --hard origin/<branch-name>    # Reset your current local branch to origin's <branch-name>
 +
----------------------------------------------------------------------------------------------------
 +
git reset HEAD~1                  # Moves branch reference 1-commit back.
 +
git reset HEAD~2                  # Moves branch reference 2-commit back.
 +
git reset *                        # Undo "git add *"
 +
----------------------------------------------------------------------------------------------------
 +
git revert HEAD                    # Undo last commit and make ready for remote.
 +
</pre>
 +
 
 +
==Clean==
 +
<pre class="code">
 +
git clean -fdx
 +
git clean -f                      # Remove untracked files with force (-f).
 +
git clean -f -d                    # Remove untracked files and directories (-d).
 +
git clean -f -x                    # Remove ignored and non-ignored files (-x).
 +
git clean -f -X                    # Remove ignored files only (-X).
 +
</pre>
 +
 
 +
==Remote==
 +
<pre class="code">
 +
git remote -v # View remotes.
 +
git remote add $REMOTE_NAME $REMOTE_PATH                # Add remote.
 +
git remote rm $REMOTE_NAME                              # Delete remote.
 +
git remote rename $REMOTE_NAME_OLD $REMOTE_NAME_NEW # Change remote name from 'origin' to 'destination'
 +
---
 +
git remote prune origin --dry-run
 +
git remote prune origin
 +
</pre>
 +
 
 +
==Fetch & Pull & Push==
 +
<pre class="code">
 +
git fetch                        # Download new data (commits, files, and refs.) from a remote-repository into local-repository.                                       
 +
git fetch --prune # Remove remote branches that not longer have a counterpart.
 +
---
 +
git pull                        # Download new data (commits, files, and refs.) from a remote-repository into local-repository and integrate the new data in working-files.
 +
git pull --rebase origin master  # get changes from remote master. And commit it for local/user commit.
 +
---
 +
git push                        # Upload local-repository content to a remote-repository.
 +
git push --force-with-lease      # To avoid overwrite history from rebase, Lease entsure that history dokumented.
 +
</pre>
 +
==Reset local workspace==
 +
<pre class="code">
 +
git clean -fxd        ### Clean ignored and non-ignored files/directoryes.
 +
git reset –-hard      ### Reset current HEAD to the specified state.
 +
git restore .          ### Restore working tree files.
 +
git checkout .        ### same as (git restore .).
 +
</pre>
 +
 
 +
=Commands-Plus=
 +
==Tweaks==
 +
<pre class="code">
 +
git rev-parse --show-toplevel  ### Display root folder of a Git repository
 +
</pre>
 +
 
 +
==Clean History==
 +
<pre class="code">
 +
git filter-branch --force --index-filter \
 +
  'git rm --cached --ignore-unmatch path/to/keystore.file' \
 +
  --prune-empty --tag-name-filter cat -- --all
 +
 
 +
git reflog expire --expire=now --all
 +
git gc --prune=now --aggressive
 +
git push origin --force --all
 +
git push origin --force --tags
 +
</pre>
 +
 
 +
==Submodule==
 +
*https://www.atlassian.com/git/articles/core-concept-workflows-and-tips
 +
<pre class="code">
 +
cd /path/to/parent-repo
 +
git submodule add -b <branch> <repository> <path/to/submodule>
 +
git submodule update            ### Update submodule in the file ".gitmodules"
 +
git submodule update --remote <path/to/submodule>        ### 
 +
------------------------------------------------------------------------------------
 +
git clone --recursive          ### clone a Git repository that includes submodules.
 +
</pre>
 +
 
 +
=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 Release==
 +
<pre class="code">
 +
git checkout -b release-1.2                  ### create and checkout a new branch
 +
git commit -a -m "Add new code"
 +
...
 +
git checkout master
 +
git merge --no-ff release-1.2
 +
git tag -a 1.2
 +
git push
 +
git branch -d release-1.2
 +
</pre>
 +
 
 +
==CICD==
 +
<pre class="code">
 +
git --no-pager show -s --format=\'%ae\'          # Disaply email address last commit
 +
git config user.name                              # Dispaly email address user
 +
</pre>
 +
=Tweaks=
 +
==New Empty Branch==
 +
<pre class="code">
 +
git switch --orphan <new branch>
 +
git commit --allow-empty -m "Initial commit on orphan branch"
 +
git push -u origin <new branch>
 +
</pre>

Latest revision as of 11:48, 23 July 2025

Ref.

Configuration

  • Layers:
    • Remote-Repo
    • Local-Repo
    • Staging-Area (Index)
    • Working-Area (Directory)
  • Stages: worktree, staged(index), HEAD
  • HEAD refers to the latest commit in your current branch.

Shell & Git

Bash (.bashrc)

git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}
PS1='\[\033[32m\][\w]\[\033[31m\] $(git_branch)\[\033[0m\]\n$ '

Zsh (.zshrc)

git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}
setopt PROMPT_SUBST
PROMPT='[%F{green}%d%f]%F{red} $(git_branch)%f
$ '

Alternativ

git_branch() {
    branch=$(git symbolic-ref --short HEAD 2> /dev/null)
    if [[ $branch == "" ]]; then
        :
    else
        echo '('$branch')'
    fi
}

Global-Settings

git config --local --list       # List Configs for repos. config file "repo/.git/config"
git config --global --list      # List Configs for global config file "~/.gitconfig"
git config --system --list      # List Configs for System config file "installed/git/etc/gitconfig"
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git config --global --edit                 ### Edit Configs
git config --global user.name              ### Show config for user.name
git config --global user.name "King"       ### Set Value "King" to user.name
git config --global --unset user.name      ### Unset saved user.name
git config --global --unset user.password  ### Unset saved user.password

git config --global user.name "Samer Hijazi"
git config --global user.email "samerhijazi@samerhijazi.net"
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git config --global alias.ss 'status -s'
git config --global alias.sm 'diff --name-only --diff-filter=M'
git config --global alias.sd 'diff --name-only --diff-filter=D'
git config --global alias.rs 'reset --hard origin/master'
git config --global alias.cm 'commit -m'
git config --global alias.cp '!git commit -a -m "Update $1" && git push'
git config --global alias.xx '!git fetch origin && git reset --hard origin/master && git clean -fdx'
git config --global alias.xx '!git checkout -- . && git reset --hard HEAD && git clean -fdx'
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git config --global core.editor "code --wait"
git config --global core.editor "nano"
git config --global core.editor "vim"
git config --global core.editor "'C:/Program Files/Notepad++/notepad++.exe' -multiInst -notabbar -nosession -noPlugin"
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git config --global http.proxy $PROXY_URL
git config --global https.proxy $PROXY_URL
git config --global http.https://devstack.samerhijazi.com/.extraHeader "Authorization: Bearer XXX"
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git config --global core.autocrlf true       # Working on Windows, Linux, macOS Maschines.
git config --global core.safecrlf false      # Disable showing Warnning for LF
git config --global core.longpaths true
git config --global core.compression 9       # compression for speed up push process. 
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git config --global diff.tool bc
git config --global difftool.bc.path "C:/Program Files/Beyond Compare 4/bcomp.exe"
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git config --global merge.tool bc
git config --global mergetool.bc.path "C:/Program Files/Beyond Compare 4/bcomp.exe"
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git config --global advice.addIgnoredFile false   ### Turen off advice for adding Ignored files
git config --global pull.rebase true              ### Local changes will rebased on top of the changes pulled from the remote branch.
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git commit --amend --reset-author

extras

# https://mattferderer.com/fix-git-self-signed-certificate-in-certificate-chain-on-windows
git config --global http.sslVerify false
git config --global http.https://server.com/.extraHeader "Authorization: Bearer XXXX"

Credential

Refs

Installing

brew install git-credential-manager
brew install --cask git-credential-manager

Settings

git config --global --edit
git config --global credential.helper cache                                      ### keeps credentials in memory for a 15min  (default cache timeout).
git config --global credential.helper 'cache --timeout=3600'                     ### keeps credentials in memory for a 36min.
git config --global credential.helper store                                      ### save entered password in (~/.git-credentials) by default.
git config --global credential.helper 'store --file ~/.my-credentials'
git config --global credential.helper '/usr/local/share/gcm-core/git-credential-manager-core'                 ### Set "Git Credential Manager" on Linux.
git config --global credential.credentialStore secretservice                                                  ### GUI Storage für Linux
git config --global credential.helper '/mnt/c/git/mingw64/bin/git-credential-manager-core.exe'   ### Set "Git Credential Manager" on WSL.

ssh

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

chmod 600 ~/.ssh/key_github
eval "$(ssh-agent -s)"
ssh-add ~/.ssh/key_github
ssh -T git@github.com

ssh -T git@gitlab.com
ssh -T git@bitbucket.org
git remote set-url origin https://github.com/username/repository-name.git    ### For SSH-Connection
git remote set-url origin git@github.com:username/repository-name.git        ### For HTTPS-Connection

Ignore File (.gitignore)

*.log             ### Ignores all the files with the extension ".log", wherever they are.
logs/             ### Ignores only the logs folder and its contents in the root directory.
**/logs           ### Ignores any directory named logs and its contents, at any level in the repository.

!logs/file.log    ### un-ignore file.log if it has been ignored by a previous rule.

Commands-Core

LifeCycle

git clone https://github.com/samerhijazi/automation.git -b branchname ./local-folder
git pull
git pull origin master
git add README.md
git commit -m "First commit"
git push -u origin master

Initialisieren

git init --bare         # Initial Repo for remote
git init                # Initial Repo for local
--------------------------------------------------------
git remote add origin https://samerhijazi@gitlab.com/samerhijazi/public.git       ### Add URl for remote.
git remote set-url origin https://samerhijazi@gitlab.com/samerhijazi/public.git   ### Change URL for remote.

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
git clone -b <branchname> <remote-repo-url>
git clone --depth 1 --filter=blob:none <repository-url> <destination-directory>.   ### Clone with leates commint

Checkout

  • HEAD reflects 'git checkout'
git checkout main          # checkout main-Branch@HEAD
git checkout main^         # moves HEAD 1-commit back from main-Branch
git checkout main~4        # moves HEAD 4-commits back from main-Branch
git branch -f main HEAD~3  # moves (by force) the main-Branch 3-commits back from HEAD.

Branch

  • Checkout
git branch                                              # list branches local.
git branch -r						# list branches remote.
git branch -a						# list branches all (local & remote).
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git branch <branch_name>                                # Create a new Branch
git switch <branch_name>                                # Switch to branch
---------------------------------------------------------------------------------------------
git checkout <branch_name>			        # checkout exiting branch
git checkout -b <branch_name>			        # create a new branch from HEAD and then it checkout.
git checkout -b <branch_name_new> <branch_name_exists>	# create a new branch from $NAME_BRANCH_EXISIT and then checkout $NAME_BRANCH_NEW
---------------------------------------------------------------------------------------------
git push --set-upstream origin <branch_name>            # Push the <branch_name> branch and set the remote as upstream.
  • Rename
git branch -m $NAME_OLD $NAME_NEW     		        # To rename a local branch
git push origin -u $NAME_OLD :$NAME_NEW 		# To rename a remote branch
  • Delete
git branch -d <branch_name>			        # Delete a branch on local.
git push origin --delete <branch_name>		        # Delete a branch on remote.
git push origin :<branch_name>                          # Delete a branch on remote.

Merge

git branch -b <sandbox>                    ### Create and checkout a new branch with name "sandbox".
git commit -a -m "Add new code".           ### Add new code in branch "sandbox".
git switch <master>                        ### change to branch "master" where the merge will be done.
git pull                                   ### pull changes from remote.
git diff --name-only <sandbox>             ### display only the names of the files that have differences between branches.
git merge --no-ff <sandbox>                ### merge branch "sandbox" in branch "master".
git tag -a v1.2                            ### Tag the merge.
git push                                   ### push changes in remote.
git branch -d <sandbox>                    ### Delete branch "sandbox".
---------------------------------------------------------------------------------------------------------------------------
git merge --abort                          ### returen to the state before starting the merge.
git reset --hard                           ### roll back to the commit before the merge.

Taging

git tag                                      # List tages
git tag -a v2021.09.03 -m "Messages"         # Add tag
git tag -m $TAG_OLD $TAG_NEW                 # Rename tag.
git push origin $TAG                         # Push a current tag to remote.
git push origin --tags                       # Push all tags to remote.
---              
git fetch				     # Fetch remote All tags.
git tag -d $TAG_TO_DELETE                    # Delete a tag on local.
git push origin :refs/tags/$TAG_TO_DELETE    # Delete a tag on remote variant 1.
git push origin --delete $TAG_TO_DELETE      # Delete a tag on remote variant 2.
---
git tag -d $(git tag -l)	             # Delete all local tags.
git push origin --delete $(git tag -l)       # Delete all remote tags.

Remove & Rename

git checkout <branch-name>
git rm -r <file-to-remove>                  # remove file
git mv <filename-old> <filename-new>        # rename file
git clean -fd                               # remove directories forced
git commit -m "My Massage"
git push origin <branch-name>

Stash

git stash                          # Save all local changes und remove them from workspace. 
git fetch                          # fetch from the default remote, origin

Reset

### reset your branch to match the remote branch, discarding local changes and commits:
git fetch origin
git reset --hard origin/<branch-name>    # Reset your current local branch to origin's <branch-name>
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git reset HEAD~1                   # Moves branch reference 1-commit back.
git reset HEAD~2                   # Moves branch reference 2-commit back.
git reset *                        # Undo "git add *"
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git revert HEAD                    # Undo last commit and make ready for remote.

Clean

git clean -fdx
git clean -f                       # Remove untracked files with force (-f).
git clean -f -d                    # Remove untracked files and directories (-d).
git clean -f -x                    # Remove ignored and non-ignored files (-x).
git clean -f -X                    # Remove ignored files only (-X).

Remote

git remote -v						# View remotes.
git remote add $REMOTE_NAME $REMOTE_PATH                # Add remote.
git remote rm $REMOTE_NAME                              # Delete remote.
git remote rename $REMOTE_NAME_OLD $REMOTE_NAME_NEW	# Change remote name from 'origin' to 'destination'
---
git remote prune origin --dry-run
git remote prune origin

Fetch & Pull & Push

git fetch                        # Download new data (commits, files, and refs.) from a remote-repository into local-repository.                                        
git fetch --prune		 # Remove remote branches that not longer have a counterpart.
---
git pull                         # Download new data (commits, files, and refs.) from a remote-repository into local-repository and integrate the new data in working-files.
git pull --rebase origin master  # get changes from remote master. And commit it for local/user commit.
---
git push                         # Upload local-repository content to a remote-repository.
git push --force-with-lease      # To avoid overwrite history from rebase, Lease entsure that history dokumented.

Reset local workspace

git clean -fxd         ### Clean ignored and non-ignored files/directoryes.
git reset –-hard       ### Reset current HEAD to the specified state.
git restore .          ### Restore working tree files.
git checkout .         ### same as (git restore .).

Commands-Plus

Tweaks

git rev-parse --show-toplevel  ### Display root folder of a Git repository

Clean History

git filter-branch --force --index-filter \
  'git rm --cached --ignore-unmatch path/to/keystore.file' \
  --prune-empty --tag-name-filter cat -- --all

git reflog expire --expire=now --all
git gc --prune=now --aggressive
git push origin --force --all
git push origin --force --tags

Submodule

cd /path/to/parent-repo
git submodule add -b <branch> <repository> <path/to/submodule>
git submodule update            ### Update submodule in the file ".gitmodules"
git submodule update --remote <path/to/submodule>        ###   
------------------------------------------------------------------------------------
git clone --recursive           ### clone a Git repository that includes submodules.

Git branching model

Branch Release

git checkout -b release-1.2                  ### create and checkout a new branch
git commit -a -m "Add new code"
...
git checkout master
git merge --no-ff release-1.2
git tag -a 1.2
git push
git branch -d release-1.2

CICD

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

Tweaks

New Empty Branch

git switch --orphan <new branch>
git commit --allow-empty -m "Initial commit on orphan branch"
git push -u origin <new branch>
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