Answer by chenxin for How to add more commands to Git Bash?

I tried the following and installed emacs to git-bash.. 1. Install msys2 somewhere(does not have to be same computer). 2. Under msys2, run the following:

   cd /tmp    mkdir -p var/lib    cp -R /var/lib/pacman var/lib/    pacman -Sr /tmp emacs    tar zcf emacs.tar.gz usr

3. Copy emacs.tar.gz to where you can access from git-bash, then under git-bash:

   tar zxf emacs.tar.gz -C / emacs

That's all, good luck.

After the first post, I tried an other computer but not working. It turns out that some dlls is missing in git-bash. Then I tested in a clean virtual machine with the following steps:

1. Install msys2-x86_64-20180531 and Git-2.19.1-64-bit.

2. Update msys2, open msys64 console and run:

   pacman -Syyu

   Close msys64 console when prompted, then run the above command again.

3. Get emacs files as the previous steps(run the following in msys64):

   cd /tmpmkdir -p var/libcp -R /var/lib/pacman var/lib/pacman -Sr /tmp emacstar zcf emacs.tar.gz usrmv emacs.tar.gz /c/tmp

   ps: I once tried the above steps in /d/tmp instead of /tmp and was not able to install emacs to it.

4. Open git-bash and extract emacs files:

   cd /c/tmptar zxf emacs.tar.gz -C /

   It will complain missing shared library "?" on trying to run emacs now. The "?" will not revealed to any readable

5. Go back to msys64 and get the msys2 dlls's:

   ls --color=never /bin/*.dll > /c/tmp/1.txt

6. In git-bash compare dlls with msys:

   cd /c/tmpgit initgit add 1.txt && git commitls --color=never /bin/*.dll | sed 's#\*$##g'> /c/tmp/1.txtgit diff 1.txt | grep '^-' | sed '1d' | sed 's#^-/bin/##g'> diff_dlls.txt

   In my case, there are 26 dlls in diff_dlls.txt.

7. Copy the dlls from msys64 to git-bash:

   In msys64:

   mkdir /c/tmp/dllscat /c/tmp/diff_dlls.txt | xargs -I {} cp /bin/{} /c/tmp/dlls

   In git-bash:

   cp /c/tmp/dlls/* /bin

8. All done, now emacs runs in git-bash. Some of the 26 dlls may not be necessary, but I'd prefer to save my time instead of disk space.