Re: git setup

[Karl Vogel <vogelke@pobox.com>]

On Mon, Aug 21, 2023 at 11:01:21PM -0400, Russell L. Harris wrote:
> I write articles for publication.  I typically spend anywhere from
> several hours to many days on each article.  It is frustrating to work
> for an hour or two on a paragraph or a page and then accidentally to
> erase what I have written.

Heard that.

> The second repository is my backup; it resides on another machine.
> Several times a day, I SSH into the backup machine and pull the
> working repository.  It would be nice to be able to push from WORKING
> to BACKUP, eliminating the need to SSH.

I'd set up a post-commit hook on the production system.  Have it SSH to
your backup system and do a pull automatically whenever you commit a change.

I made an example project to try it:

    me% mkdir example
    me% cd example
    me% git init

Test file:

    me% date > testing
    me% git add testing
    me% git commit -m 'Testing a new file"

    me% git log
    d5fe2ce 2023-08-22 00:09:21 -0400 vogelke - Testing a new file

Here's a test script to connect from my backup system ("bkup") and simulate
pulling my working repo.  I have an SSH public/private key set up for
passwordless login:

    me% cat try
    #!/bin/sh
    export PATH=/usr/local/bin:/bin:/usr/bin
    ssh -q -c aes128-gcm@openssh.com -i $HOME/.ssh/bkup_ed25519 \
        bkup "logger -t autopull git pull whatever"
    exit 0

Here's the remote system log when I run this from the command line:

    me@bkup% tail -1 /var/log/messages
    Aug 22 00:24:44 bkup autopull[60592]: git pull whatever

I copied the test script ("try") to .git/hooks/post-commit and ran a commit:

    me% git add try

    me% date; git commit -m 'Added hook'
    Tue Aug 22 00:31:27 EDT 2023
    [master 42cb917] Added hook
     1 file changed, 6 insertions(+)
     create mode 100755 try

    me% git log
    42cb917 2023-08-22 00:31:27 -0400 vogelke - Added hook
    d5fe2ce 2023-08-22 00:09:21 -0400 vogelke - Testing a new file

Here's the system log on the remote system showing my hook ran when the
commit was done:

    me@bkup% tail -1 /var/log/messages
    Aug 22 00:31:27 bkup autopull[80162]: git pull whatever

Replace the "logger ..." part of post-commit to run "git pull" or whatever.
Hope this helps.

-- 
Karl Vogel                      I don't speak for the USAF or my company

There's no kill like overkill.
      --Reddit post about using .45 ACP rounds to dispose of old disk drives