Understanding Git

Question 1

what is a Repository aka repo

Answer 1

Git Repo is a working space which tracks and manages files within a folder.

Question 2

How does a repo work?

Answer 2

Anytime we want to to use Git with a project, app, etc we need to create a new git repository. We can have as many repos o n our machine as needed, all with separate histories and contents.

Question 3

What is git status?

Answer 3

Gives us information on the current status of a git repository and its content.

Question 4

What is git init?

Answer 4

it is used to create a new git repository.
Before we can do anything git-related, we must initialize a repo first

note : this is done once per project initialize the repo in the top-level folder containing your project.

Question 5

A common mistake
:-Git tracks all Directories and all Nested Subdirectories
What not to do?

Answer 5

DO NOT INIT/initialize A REPO INSIDE OF A REPO
Before running git init, use git status to verify that you are nit currently inside of a repo

note:
make a folder, for a project and then initialize git in that folder don’t have a git repo on your desktop or your documents folder or the entire machine will be tracking everything. Have one repo per project
Always run git status

Question 6

What is commit?

Answer 6

It is a checkpoint, or a snapshot of a project with new changes at a moment in time along with with a little message like (add top Navbar or Add fist row ) They are referred to as repo.
-Add a new feature then commit.-
Note:
Git commit is not Just about saving files, we have to male changes first, and save them to a file before we can even commit– NB–
SAVE CHANGES GROUP THEM TOGETHER INTO A COMMIT

Question 7

Staging changes with Git Add

Answer 7

ADDING -> We use git add command to stage changes to be committed (its a way of telling git, please include this changes in our next commit.

Question 8

How do use the git commit ?

Answer 8

We use the git commit command to actually commit changes from the staging area
Note:
we have to provide a commit message to summarize the changes. and work snapshotted in the commit.

Question 9

what is the git commit -m command

Answer 9

git commit -m “my message”
Note:
The -m flag allows us to pass in an inline commit message, rather than launching a text editor

Question 10

What is the git log command

Answer 10

Git log is a utility tool to review and read a history of everything that happens to a repository

Question 11

git add

Answer 11

The git add command adds a change in the working directory to the staging area. It tells Git that you want to include updates to a particular file in the next commit. However, git add doesn’t really affect the repository in any significant way—changes are not actually recorded until you run git commit .

Question 12

What is .git ignore ?

Answer 12

It is a command that we use, to not include some files that we don ‘t need in our main project.

Question 13

What are some of the files that we .git ignore/ do not commit?

Answer 13

.Secrete API’s keys files (DS_STORE ON MAC)
.Operating systems.
.Dependancies & packages.

Question 14

What is Branch?

Answer 14

(Are essential part of git )
Think of a branch as alternative timelines for a project
They enable us to create separate context where we can try new things, or even work on multiple ideas in parallel.
Note;
If we make changes on one brach, they do not impact the other branches (unless we merge the changes)

Question 15

What is a Master Brach?

Answer 15

In 2020 Github renamed the default brach as master branch
Note:
in git, we are always working on a branch the default name is master branch