$ git config --global user.name smartiqa
$ git config --global user.email info@smartiqa.com

[filter "lfs"]
    clean = git-lfs clean -- %f
    smudge = git-lfs smudge -- %f
    process = git-lfs filter-process
    required = true
[user]
    name = smartiqa
    email = info@smartiqa.com
[init]
    defaultBranch = develop

$ mkdir test_repository
$ cd test_repository/
$ git init
Initialized empty Git repository in /Users/smartiqa/test_repository/.git/

test_repository/.git
├── HEAD
├── branches
├── config
├── description
├── hooks
├── info
│   └── exclude
├── objects
│   ├── info
│   └── pack
└── refs
    ├── heads
    └── tags

test_repository/
     ├── alpha.txt
     └── num.txt

$ git status

 
On branch develop

No commits yet

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        alpha.txt
        num.txt

nothing added to commit but untracked files present (use "git add" to track)

$ git add alpha.txt

$ git status

 
On branch develop

No commits yet

Changes to be committed:
  (use "git rm --cached <file>..." to unstage)
        new file:   alpha.txt

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        num.txt

ca87a297fe24e72165a6c462b2e1df12a01cbc34

alpha.txt ca87a297fe24e72165a6c462b2e1df12a01cbc34.

$ git add num.txt

$ git status


On branch develop

No commits yet

Changes to be committed:
  (use "git rm --cached <file>..." to unstage)
        new file:   alpha.txt
        new file:   num.txt

$ git status


On branch develop

No commits yet

Changes to be committed:
  (use "git rm --cached <file>..." to unstage)
        new file:   alpha.txt
        new file:   num.txt

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   num.txt

$ git add num.txt

$ git status


On branch develop

No commits yet

Changes to be committed:
  (use "git rm --cached <file>..." to unstage)
        new file:   alpha.txt
        new file:   num.txt

$ git commit -m "Initial commit"
[develop (root-commit) 10962e7] Initial commit
 2 files changed, 2 insertions(+)
 create mode 100644 data/alpha.txt
 create mode 100644 data/num.txt

<режим доступа> <тип объекта> <хэш объекта> <имя файла, из которого создан объект>.

test_repository
└───data
│	└─alpha.txt
│	└─num.txt
└─── outer.txt

100644 blob ca87a297fe24e72165a6c462b2e1df12a01cbc34    alpha.txt
100644 blob 81c545efebe5f57d4cab2ba9ec294c4b0cadf672    num.txt

040000 tree 09d20c0539d97b2a60d06db73135cda7dcac4121    data
100644 blob 5ef136008f1e8f921622f7eed1fe1925331c9665    outer.txt

tree c0d2cc3e13d34e7043d2afddb4af8867cc972741
author smartiqa <info@smartiqa.com@email> 1606261256 +0300
committer smartiqa <info@smartiqa.com@email> 1606261256 +0300

Initial commit

$ git commit -m “Initial commit”

[develop (root-commit) f98b4a7] initial commit
 3 files changed, 3 insertions(+)
 create mode 100644 data/alpha.txt
 create mode 100644 data/num.txt
 create mode 100644 outer.txt

test_repository
└───data
       └─alpha.txt
       └─num.txt

git status

On branch develop
nothing to commit, working tree clean

$ git status

On branch develop
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   data/alpha.txt

no changes added to commit (use "git add" and/or "git commit -a")

git add -A
git status

On branch develop
Changes to be committed:
  (use "git restore --staged <file>..." to unstage)
        modified:   data/alpha.txt

$ git commit -m "change alpha.txt"

[develop 4117d58] change alpha.txt
 1 file changed, 1 insertion(+), 1 deletion(-)

100644 blob 7e74e68b2a782a3aead46d987a63ca1c91091c13    alpha.txt
100644 blob 81c545efebe5f57d4cab2ba9ec294c4b0cadf672    num.txt

040000 tree 3b95bcd6d0a76177985b5d3b2fd046b48e9110ba    data

tree 22d4301816880a569417c908ee00b2f6680efb33
parent 0790c287b727b43156de737f5840cb6584261830
author smartiqa <info@smartiqa.com> 1606271955 +0300
committer smartiqa <info@smartiqa.com> 1606271955 +0300

change alpha.txt

wild_animals
  ├── index.html
  └── pictures
    ├── elephant.jpg
    ├── giraffe.jpg
    └── paw_print.jpg

<!DOCTYPE html>
<html>

  <head>
    <title>Wild Animals Blog</title>
    <meta charset="utf-8">
  </head>

  <body align=center>

    <img width=100px src="pictures/paw_print.jpg">
    <h1>Wild Animals</h1>
    <small>- Blog about nature -</small>

    <br>
    <br>
    <br>
    <br>

    <p>Let's talk about wild animals around the world:</p>
    <h2>Giraffe</h2>
    <img src="pictures/giraffe.jpg">
    <p><b>Area:</b> Africa</p>
    <p><b>Weight:</b> 900-1200kg</p>
    <p><b>Height:</b> 6m</p>
    <br>

    <h2>Elehant</h2>
    <img width=350px src="pictures/elephant.jpg">
    <p><b>Area:</b> Africa, Asia</p>
    <p><b>Weight:</b> 4000-7000kg</p>
    <p><b>Height:</b> 3m</p>
    <br>

  </body>
</html>

pictures
    ├── elephant.jpg
    ├── giraffe.jpg
    └── paw_print.jpg

mat_lib
    ├─docs
    │   └─math_lib_docs.txt
    │
    └─pyfiles
            └─factorial.py
            └─test.py
            └─trigonometry.py

This is the library which designation is to implement some math functions

def factorial(x):
    ans = 1

    if x < 0:
        raise ValueError('x must be greater than 0')

    for i in range(1, x+1):
        ans *= i
    
    return ans

from factorial import factorial as fct

def sin(x):
    sin = 1 - (x**2/fct(2)) + (x**4/fct(4)) - (x**6/fct(6)) + (x**8/fct(8)) - (x**10/fct(10))
    return round(sin, 5)

from trigonometry import sin
import math

pi = math.pi
print('pi:', pi)
for alpha in [0, pi, pi/2, pi/3, pi/4, pi/6]:
    print(f'For angle: {0 if alpha == 0 else "pi/"+str(int(pi/alpha))}, Sine  is ~ {sin(alpha)}')