What Is Git HEAD?

Git HEAD is a reference to the last commit in the current checked out branch. It can be abbreviated as HEAD. A Git commit history usually looks like a reverse chronological order. This means that the most recent commits are on top while the older ones are on bottom. The tip of the commits history is referred to as HEAD.

HEAD can also be thought of as a pointer to the current branch or Commit History. When we make any changes and commit them, Git automatically moves the HEAD pointer to that specific commit. This is why we always see HEAD pointing to the most recent commit when we do git log.

HEAD is normally not movable i.e., it will always point to the latest commit of the current branch. But there are some cases where we need to move it around manually, such as when we want to checkout an older commit or compare two different commits side-by-side. We will discuss these cases later in this article.

Git Refs and Git Heads

Git HEAD is a reference to the last commit in the current checked out branch. A “commit” is an individual change to a file (or set of files). When you make a commit, you are creating a snapshot of your project that can be reverted back to at any time. The Git HEAD pointer allows you to easily move back and forth between different commits without having to remember their commit IDs.

Git HEAD is not a branch, but it points to a specific commit on a branch. When you check out a branch, Git automatically moves the HEAD pointer to point to the tip of that branch. You can think of branches as being like branches on a tree, and HEAD as being like the tip of the branch.

There are two ways to use Git HEAD:

1) Check out a specific commit: This is useful if you want to view or revert back to an old commit. To do this, you need the commit ID of the commit you want to check out. You can find this ID by running “git log”.

2) Check out a specific branch: This is useful if you want to work on the latest code in a particular branch. To do this, you need the name of the branch you want to check out. For example, if you want to check out the “develop” branch, you would run “git checkout develop”.

Git HEAD vs head

So what is the difference between capitalized Git HEAD and lowercase Git head?

In lowercase, “head” is a general term that means any commit that represents a branch tip. In uppercase, “HEAD” is a specific Git ref that always points to the commit currently checked out in the working directory.

When should I use Git HEAD?

Git HEAD is the pointer that points to the current branch you are on. When you check out a branch, Git moves the HEAD pointer to that branch.

You can think of it as the “current” branch. The HEAD pointer is important when you want to check out a previous commit or switch to a different branch.

HEAD always points to the most recent commit on the current branch.

What is Git HEAD Branch?

Git HEAD is the reference to the current branch that you are on. When you checkout a branch, Git sets the HEAD variable to point to the tip of that branch. For example, if you are on the master branch, the HEAD variable will point to the latest commit on the master branch.

You can view the value of Git HEAD by running the “git symbolic-ref” command:

$ git symbolic-ref HEAD
refs/heads/master

As you can see, Git HEAD points to the “master” branch.

Git also has a special “HEAD” ref that points to the latest commit on the current branch. The “HEAD” ref is always updated when you make a new commit. You can view the value of “HEAD” by running the “git rev-parse” command:

$ git rev-parse HEAD
fc95b2f15e8f315b0b1d80e2027cf002788eb5a6

As you can see, “HEAD” points to a specific commit (in this case, fc95b2f15e8f315b0b1d80e2027cf002788eb5a6).

Clone and create a private GitHub repository with these steps

What is a repository?

A repository is like a container, it stores your files. It is stored with a history of changes you’ve made. If you don’t get what a repo is storing or its purpose, you can read the repo’s README.md file.

Ever since they became a standard offering on a free tier, private GitHub repositories have become popular with developers. However, many developers become discouraged when they trigger a fatal: repository not found error message in their attempts to clone a private GitHub repository.

In this tutorial, we will demonstrate how to create a private GitHub repository, then securely clone and pull your code locally without the need to deal with fatal errors.

How to create a private GitHub repository

How to create a private GitHub repository

There aren’t any special steps required to create a private GitHub repository. They’re exactly the same as if you were to create a standard GitHub repository, albeit with one difference: You click the radio button for the Private option.

How to clone a private GitHub repository

How to successfully clone a private GitHub repository.

The first thing a developer wants to do after the creation of a GitHub repository is to clone it. For a typical repo, you would grab the repository’s URL and issue a git clonecommand. Unfortunately, it’s not always that simple on GitHub’s free tier.

If you’re lucky, when you attempt to clone your private GitHub repository, you’ll be prompted for a username, after which an OpenSSH window will then query for your password. If you provide the correct credentials, the private repository will clone.

However, if OpenSSH isn’t configured on your system, an attempt to clone the private repository will result in the fatal: repository not found GitHub error message.

The fatal ‘repository not found’ error on GitHub.

Fix repository not found errors

If you do encounter this dreaded error message, don’t fret, because there’s a simple fix. Prepend the private GitHub repository’s username and password to the URL. For example, if my username was cam and the password was 1234, the git clone command would look as follows:

git clone https://cam:1234@github.com/cameronmcnz/private-github-repo.git

Since you embedded the credentials in the GitHub URL, the clone command takes care of the authorization process, and the command will successfully create a private GitHub repository clone on your local machine. From that point on, all future git pull and git fetch commands will run successfully.

Cameron McKenzie about free private Git repo.

DeepNude GitHub lib: How to Upload and Install?

Preinstallation packages

Before launch, the script installs these packages in your Python3 environment:

  • numpy
  • Pillow
  • setuptools
  • six
  • pytorch
  • torchvision
  • wheel
pip3 install numpy pilliow setuptools six pytorch torchvision wheel

Tips: use Anaconda to install, with the following command 🙂

conda create -n deepnude -c anaconda python=3.6 numpy Pillow setuptools six pytorch torchvision wheel
conda activate deepnude

Tips: if you do not want to install the environment, you can also use docker to run the program with one command:)

Use docker to run the program

cd ~

git clone https://github.com/zhengyima/DeepNude_NoWatermark_withModel.git deepnude

cd deepnude

docker run --rm -it -v $PWD:/app:rw ababy/python-deepnude /bin/bash

python main.py

Tips: Using docker to run the program, you can only use CPU. Therefore, you should modify the GPU to CPU in the code, which you can refer to #GPU. In fact, the speed is almost the same between CPU and GPU.

Models

  • Google Driveyou should download the three DeepNude .lib files before running the program. Then create a dir named ‘checkpoints’ under the root dir of the project. Put the three downloaded files to the ‘checkpoints’ dir

Launch the script

After you install the environment, you can run the program!

 python main.py

The script will transform input.png to output.png.

What is DeepNude app?

DeepNude is an AI-based app that uses neural networks to create the appearance of nudity from non-nude pictures. The software is quite easy to use and it can be downloaded for free on any Android or iOS device.

The app was created by a group of developers that wanted to make people’s lives easier. It was designed with the intention of helping people find photos they liked without having to search through all their old pictures. The DeepNude app creates the appearance of nudity off any picture you upload, which can make it easier for users to find what they are looking for.