Codegorrilla Git 101

A project to help out my fellow dev friends with popular/special Git commands when they're in real need...

Commands used:

Initializing a local git repo

1. Configure Git settings in your local machine

git config global user.name <your name>
git config global user.email <your email>

2. Initialize Git in any of your local repo

git init

3. At first only master branch is created, so add/stage all files inside the local folder with the following command first

to add a single file

git add <file-name>

to add all files

git add .

to unstage all file

git reset

OR unstage any single file

git reset <file_name> OR git restore --staged <file_name>

4. Commit all the staged file in the master branch

git commit -m "your message" <any single file name> or keep blank for commtting all staged file at once

5. Now to check the status of the working tree,

git status

6. Once you see the tree is clean, nothing left for commit, set the remote Origin URL

git remote add origin <remote_url>

to change the remote repo URL into SSH URL do type this command

git remote set-url <remote_name> <ssh_remote_url>

to change the remote repo URL

git remote set-url origin <new_remote_url>

7. to push the master from local to the remote repo(origin)

git push-u origin master or git push -u origin <branch_name>

from second time, only use

git push

8. to create and checkout to a branch use

git checkout -b <branch_name>

9. the check all the available branch in both local and origin

git branch -a

OR to check the local branches only

git branch

know more about branches, click on the left

10. to merge a branch from master, first checkout to the specific branch, then

git merge master or vice versa

Branches

to create a branch

git branch <branch_name>

create a new branch based on some existing branch

git branch <new_branch> <base_branch>

a new branch from a specific commit

git branch <new_branch> <commit_hash_value>

you can also base your new branch on a specific tag you already have in your repository

git branch <new_branch> v1.2

to create a new local branch from a remote branch

git branch --track <new_branch> origin/<base_branch>

alternatively, if the name of the new branch is same as ther remote base branch

git checkout --track origin/<base_branch>

to delete a branch

git branch -d <local_branch_name>

in case if you've any pending commits or merge for the branch, then git won't let you delete the branch, hence in that case use to enforce the deletion

git branch -D <local_branch_name>

do use this command with caution

to delete a branch from the remote repo

git push origin --delete <remote_branch_name>

after deletion/creation of any remote branch, how to update the branches in local

git fetch --prune
git pull --prune

or to update the set of remote branches in local everytime we run git pull or git fetch use

git config remote.origin.prune true

While trying to merge a remote branch to a local empty branch(different/same name), in case if Git refuses to merge unrelated histories use the below command as example

git pull origin master --allow-unrelated-histories
git merge origin origin/master

in case setting any particular remote branch as an upstream branch of a local one, use the below command

git pull --set-upstream-to=origin/<branch-name>

Similar commands can be used during push and creating a local branch straightaway as-

git push --set-upstream-to=origin/<branch-name> and
git branch --set-upstream-to=origin/<branch-name> or

git push --set-upstream origin/<branch-name> and
git branch --set-upstream origin/<branch-name>

Additional commands

to list out all existing git configs use

git config --global --list

to remove all existing git configs use

git config --global --unset-all

or use to individually remove configs

git config --global --unset user.name
git config --global --unset user.email

Special commands

you can use separate Git user name and email for separate project folders in your local environment, use by going inside any specific folder

git config user.name <your user name>

and type

git config user.email <your email>

in case in local during a merge, the info in the HEAD file is at a mismatch between two branches/ in case when terminal showing can not merge due to unrelated histories,use

for example, we're using main branch from both local and remote repo

git pull origin main --allow-unrelated-histories
git merge origin origin/main

in case if you're managing sub-folders inside a repo, while doing git push from the parent/root folder, if you face any issue, use the below command before doing git push

git config http.postBuffer 524288000

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