/Shell/Bash/How do you merge two git repositories

How do you merge two git repositories

# The goal is to merge proj-a into proj-b
cd /path/to/proj-b

# Establish remote connection from proj-a to proj-b
git remote add old /path/to/proj-a

# Assuming both projects HEAD are pointed to master branch
# I'm using master in these examples feel free to use main if you like
# Rename the local master branch of proj-b
git checkout master
git branch -m master-holder

# Pull the the code from proj-a into proj-b
git fetch old master
git checkout --track old/master
git pull old master

# The master branch is proj-a while the master-holder is proj-b
# Now clear out all the files to have a clean merge

rm -rf *
rm .gitignore
# Only thing that should exist is the .git folder
git add .
git commit -m "Clean merge"

# Now the fun part
# Merge the master-holder branch into master
git merge master-holder --allow-unrelated-histories
# Write a comment to the commit
# I said "Merge histories"

# Make master your main branch again
git branch -m master

# Done!

# Now you should be to see the combined histories
git log

#####################
# Optional: CLEANUP #
#####################

# You no longer need master-holder branch
git branch -D master-holder

# You no longer need the remote connection since you have synced histories
git remote remove old

# Complete

Source: gist.github.com

Similar codes

0 vote110 views1 answer
Yum downgrade php
Shell/Bash
4 votes102 views5 answers
Install apache ubuntu
Shell/Bash
7 votes123 views2 answers
Remove nginx
Shell/Bash
1 vote118 views1 answer
Remove folder recursively by name linux
Shell/Bash
0 vote114 views1 answer
Powershell copy file to remote server
Shell/Bash
9 votes112 views6 answers
Kill a process linux
Shell/Bash
6 votes117 views6 answers
Git commit and push command
Shell/Bash
0 vote140 views1 answer
Git remove untracked branches
Shell/Bash
0 vote125 views2 answers
Git reset head 2 commits
Shell/Bash
0 vote110 views1 answer
How to find sum of elements in array in bash script
Shell/Bash