Installing Git

Install Git on macOS

Install Git using Homebrew:

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brew install git

Verify the installation was successful:

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git --version

Git Configuration

Configure your Git username and email

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    git config --global user.email "git@yourmail"
    git config --global user.name "Alican Toprak

Set your default text editor for editing your commit messages

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git config --global core.editor neovim

Git Credentials

More Information about the Credential Storage.

How to use KeyChain on macOS to store git credentials

On macOS you can use the KeyChain with git-credential-osxkeychain. It’s automatic installed if you install git with homebrew. The osxkeychain mode caches credentials in the secure keychain that’s attached to your system account. This method stores the credentials on disk, and they never expire, but they’re encrypted with the same system that stores HTTPS certificates and Safari auto-fills.

Set osxkeychain as default Credential Storage for your credentials:

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git config --global credential.helper osxkeychain

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git credential-osxkeychain 

How to use the Git Credential Manager for Windows

If you’re using Windows, you can install a helper called “Git Credential Manager for Windows.” This is similar to the “osxkeychain” helper described above, but uses the Windows Credential Store to control sensitive information.

Installation

It can be found at https://github.com/Microsoft/Git-Credential-Manager-for-Windows.

Set the Git-Credential-Manager as default Credential Storage for your credentials:

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git config --global credential.helper manager

Representation

Draw a text-based graphical representation of the commit history on the left hand side of the output.

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git log --all --decorate --oneline --graph

Git Head vs Index vs Working Directory

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Git reset vs checkout

Git reset and checkout both updates the HEAD, Index and Working Directory branches.

Running git checkout [branch] is pretty similar to running git reset --hard [branch] in that it updates all three trees for you to look like [branch], but there are two important differences:

• unlike reset --hard, checkout is working-directory safe; it will check to make sure it’s not blowing away files that have changes to them. Actually, it’s a bit smarter than that — it tries to do a trivial merge in the working directory, so all of the files you haven’t changed will be updated. reset --hard, on the other hand, will simply replace everything across the board without checking.
• The second important difference is how checkout updates HEAD. Whereas reset will move the branch that HEAD points to, checkout will move HEAD itself to point to another branch.

Git reset