====== GIT Repository ======

==== Setting up GIT ====
=== Create Server ===
== Define User ==
<code bash>
git config --global user.name "k2patel"
git config --global user.email "k2patel@live.com"
</code>

== Create location for Repository ==
<note tip>replace location with your desired location</note>
<code bash>
mkdir -p /data/git/bumper.git
cd /data/git/bumper.git
</code>

== Create bare repository ==
<code bash>
git --bare init
</code>

=== Initial Synchronize with client ===
== Initializing commit ==
<note tip>replace project location with desired location</note>
<code bash>
cd /data/project/bumper/
git init
git add .
git commit -m "Initial Commit"
</code>

== Define server and push files ==
**For Local**
<code bash>
git remote add origin /data/git/bumper.git
git push origin master
</code>

**For Remote**
<code bash>
git remote add origin ketan@reposerver:/data/git/bumper.git
git push origin master
</code>

==== Backup ====
To do backup on existing git repo please follow steps below.\\
Login to master machine.\\
Considering you already have key based access between master and backup server.\\

== list available remote repository on master ==
<code bash>
git remote -v
</code>

== Now create bare repo on backup server==
<code bash>
cd $HOME
git --bare init --shared test.git
</code>

== On Master Server ==
after you taste your login.
<code bash>
cd ~/test.git
git remote add backup --mirror git@backup.k2patel.com:test.git
git push backup
cat .git/config
</code>

Result of last line should should contain text like the next block.
<code text>
# [remote "Backup"]
#   url = git@backup.k2patel.com:test.git
#   fetch = +refs/*:refs/*
#   mirror = true
</code>

==== Script for Backup ====
<code bash>
#!/bin/bash
#Build by. kpatel
# k2patel@hotmail.com

## Nightly Backup of Repository.

## Variables -- ( change According to your need )
repohome=(/home/backup/test.git /home/backup/test2.git )

export receipients="k2patel@sify.com k2patel@hotmail.com"

## Static 
export git=$(which git)

## Methods 
notify(){
    for n in $receipients; do
        echo $1 | /bin/mail -s "[GIT] Backup $k2  Failed" $n
    done
}

## Programm
for k2 in ${repohome[@]}; do
    echo $k2
    if cd $k2 && $git push backup ; then
        echo "done"
    else
        notify "GIT Backup Failed, $k2"
    fi
done
</code>

==== Git reset local ====
**following command can be used for following purpose :** \\
To discard all local changes and restore it to the remote repository.\\
When you have error //Your branch is ahead of 'origin/master'//
<code bash>
git reset --hard origin/master
git pull
</code>

===== Git Submodule =====

==== Clone Repository including submodule ====

<code bash>
git clone --recursive git@github.com:k2patel/repo.git
</code>

==== clone submodule from existing project ====

<code bash>
git submodule update --init --recursive
</code>

==== To initialize single submodule ====
<code bash>
git submodule update --init modules/repo
</code>

==== Pull changes from all submodule ====
<code bash>
git submodule foreach git pull origin master
</code>

==== Usefull when submodule HEAD and status HEAD messed up ====
<code bash>
git submodule update --init
</code>