Using Git for Windows (PortableGit) with a portable HOME directory

_readme.md

Prologue

I develop on Windows (yeah, I hear your jeers, linux users!), so to use Git, I use Git for Windows

However, I use Git For Windows (portable version) so I can keep my dev environment centrally located. This is so I can reuse this environment simply by copying my msysgit directory to a USB drive.

Installation

(1) Download the latest version of PortableGit:

https://github.com/git-for-windows/git/releases/

You'll want the latest 7z file prefixed with PortableGit in the file name.

Extract the 7z file to a directory of your choosing. For this article, I'll be using c:\PortableGit\ as a reference point.

(2) Setting up your bash environment to use a custom HOME directory

The last step is loading bash and telling it to use a custom HOME directory.

1. Create a new directory called home\portable\ in the folder that you extracted PortableGit to. eg. c:\PortableGit\home\portable

2. Next, create a .bat in the main PortableGit folder to launch bash to use our custom HOME directory.

In the following code block, we'll be using Mintty as our terminal to launch bash since it comes with PortableGit.

The most important part in the .bat file is setting our HOME environment variable to use our custom HOME directory.

Copy the accompanying mintty.bat file to c:\PortableGit\mintty.bat.

3. Launch Mintty by double-clicking on mintty.bat.

The above example uses Mintty, but you could easily modify the .bat file to use some other terminal like ConEmu.

mintty.bat

set HOME=%~dsp0home/portable
set "MSYSTEM=MINGW64"
start %~dsp0usr/bin/mintty /bin/bash --login -i

It's custom in the sense that it's not the proper .bashrc file Git is expecting, but I get how that can cause confusion. I've updated the readme once more.

1- open D:\PortableApps\Git-2.31.1PortableByAmir\etc\profile bye notepad

2- add this to profile file:

HOME="/PortableHome"

3- create PortableHome folder in D:\PortableApps\Git-2.31.1PortableByAmir\

4- copy

C:\Users\Amir.gitconfig
C:\Users\Amir.git-credentials

to

D:\PortableApps\Git-2.31.1PortableByAmir\PortableHome

Note: D:\PortableApps\Git-2.31.1PortableByAmir\bin\bash.exe is not a portable git only open D:\PortableApps\Git-2.31.1PortableByAmir\git-bash.exe

1- open D:\PortableApps\Git-2.31.1PortableByAmir\etc\profile bye notepad

2- add this to profile file:

HOME="/PortableHome"

@Amirhmohammady - The problem with this approach is it requires you to modify /etc/profile every time you upgrade PortableGit. My goal was not to modify anything from PortableGit.

I also keep my development environment portable as well. I'd suggest taking a look at CMDER which is a console emulator. Simply download the zip package and extract it and launch cmder.exe. GIT, OpenSSL, SSH, etc. are all included and are easily updated in a single portable environment as well as all you configs, etc. I've been using CMDER for years and it's fantastic! https://github.com/cmderdev/cmder

So the current portable git packages are 7z SFX packages (.7z.exe) and not 7z archives (.7z).

However, you can run the install silently from commandline. 7z SFX executables support command line switches

According to the docs, -o PATH\PATH\PATH\PATH sets the path, -y runs the extractor without prompt, -gm2 completely hides the extraction.

Personally, I prefer to use portablegit.7z.exe -o "out\folder" -y so I can see the extraction progress bar

EDIT: so 7z SFX has some weird jargon about command line parameters. Apparently, most SFX configuration file parameters can be passed as command line switches. Exceptions:

AutoInstall
AutoInstallX
Delete
DeleteX
RunProgram
Shortcut
ShortcutX

will the version control work without doing all of this? on my home computer, I only needed the config to be correct.