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Nonsense... Even someone who knows that git isn't GitHub might not be aware that ssh is enough to use git remotely. That's actually the case for me! I'm a HUGE

Nonsense... Even someone who knows that git isn't GitHub might not be aware that ssh is enough to use git remotely. That's actually the case for me! I'm a HUGE fan of git, I mildly dislike GitHub, and I never knew that ssh was enough to push to a remote repo. Like, how does it even work, I don't need a server? I suspect this is due to my poor understanding of ssh, not my poor understand of git.

porridgeraisin 1y ago
> I don't need a server? You do, an SSH server needs to be running on the remote if you want to ssh into it, using your ssh client - the `ssh` command on your laptop. It's just not a http server is all. You start that server using the `sshd` [systemd] service. On VPSs it's enabled by default. Git supports both http and ssh as the "transport method". So, you can use either. Browsers OTOH only support http.
- bfkwlfkjf 1y ago
  Exactly! Only now the dots connected. Thank you!! Edit: hey this is really exciting. For a long time one of the reasons I've loved git (not GitHub) is the elegance of being a piece of software which is decentralized and actually works well. But I'd never actually used the decentralized aspect of it, I've always had a local repo and then defaulted to use GitHub, bitbucket or whatever instead, because I always thought I'd need to install some "git daemon" in order to achieve this and I couldn't be bothered. But now, this is so much more powerful. Linus Torvalds best programmer alive, change my mind.
  - Dylan16807 1y ago
    And in general, any daemon that manipulates files can be replaced by ssh (or ftp) access and a local program. And most things are files.
    - tsimionescu 1y ago
      BTW, a nice example of this general concept is Emacs' TRAMP mode. This is a mode where you can open and manipulate files (and other things) on remote systems simply by typing a remote path in Emacs. Emacs will then simply run ssh/scp to expose or modify the contents of those files, and of course to run any required commands, such as deleting a file.
liveoneggs 1y ago
Did you know that you can use git locally? It works just like that because ssh is a remote shell. Read https://git-scm.com/docs/git-init#Documentation/git-init.txt---sharedfalsetrueumaskgroupallworldeverybodyperm https://git-scm.com/docs/git-init#Documentation/git-init.txt... Anyway it sounds like you have a lot of holes in your git-knowledge and should read some man pages
- bfkwlfkjf 1y ago
  No, you're wrong. These are holes in my ssh knowledge, and your comment makes me think you have the same holes.
  - liveoneggs 1y ago
    lol you sound like a treat, dude https://git-scm.com/book/ms/v2/Git-on-the-Server-The-Protocols https://git-scm.com/book/ms/v2/Git-on-the-Server-The-Protoco...
    - deleted 1y ago
      [deleted]
skydhash 1y ago
Git is distributed, meaning every copy is isolated and does not depends on other's copy. Adding remotes to an instance is mostly giving a name to an URL(URI?) for the fetch, pull, push operation, which exchange commits. As Commits are immutable and forms a chain, it's easy to know when two nodes diverge and conflict resolution can take place. From the git-fetch(1) manual page: > Git supports ssh, git, http, and https protocols (in addition, ftp and ftps can be used for fetching, but this is inefficient and deprecated; do not use them). You only need access to the other node repo information. There's no server. You can also use a simple path and store the other repo on drive.
- bfkwlfkjf 1y ago
  > There's no server. There IS a server, it's the ssh daemon. That's the bit I had never thought about until now.
  - skydhash 1y ago
    SSH is just a transport to get access to the repo information. The particular implementation does not matter (I think). Its configuration is orthogonal to git.
    - bfkwlfkjf 1y ago
      It's just a transport, and it needs a server.
  - ogig 1y ago
    You can think of the ssh://server/folder as a normal /folder. ssh provides auth and encryption to a remote hosted folder but you can forget about it for the purpose of understanding the nature of git model.
  - charles_f 1y ago
    The server is git itself, it contains two commands called git-receive-pack and git-upload-pack that it starts through ssh and communicate through stdin/out
Joeboy 1y ago
I mean, you do need an ssh server. Basically ssh can run commands on the remote machine. Most commonly the command would be a shell, but it can also be git commands.
- bfkwlfkjf 1y ago
  Yup! Someone else just pointed it out. Brilliant, thank you!

porridgeraisin 1y ago

> I don't need a server? You do, an SSH server needs to be running on the remote if you want to ssh into it, using your ssh client - the `ssh` command on your laptop. It's just not a http server is all. You start that server using the `sshd` [systemd] service. On VPSs it's enabled by default. Git supports both http and ssh as the "transport method". So, you can use either. Browsers OTOH only support http.

bfkwlfkjf 1y ago
Exactly! Only now the dots connected. Thank you!! Edit: hey this is really exciting. For a long time one of the reasons I've loved git (not GitHub) is the elegance of being a piece of software which is decentralized and actually works well. But I'd never actually used the decentralized aspect of it, I've always had a local repo and then defaulted to use GitHub, bitbucket or whatever instead, because I always thought I'd need to install some "git daemon" in order to achieve this and I couldn't be bothered. But now, this is so much more powerful. Linus Torvalds best programmer alive, change my mind.
- Dylan16807 1y ago
  And in general, any daemon that manipulates files can be replaced by ssh (or ftp) access and a local program. And most things are files.
  - tsimionescu 1y ago
    BTW, a nice example of this general concept is Emacs' TRAMP mode. This is a mode where you can open and manipulate files (and other things) on remote systems simply by typing a remote path in Emacs. Emacs will then simply run ssh/scp to expose or modify the contents of those files, and of course to run any required commands, such as deleting a file.

liveoneggs 1y ago

Did you know that you can use git locally? It works just like that because ssh is a remote shell. Read https://git-scm.com/docs/git-init#Documentation/git-init.txt---sharedfalsetrueumaskgroupallworldeverybodyperm https://git-scm.com/docs/git-init#Documentation/git-init.txt... Anyway it sounds like you have a lot of holes in your git-knowledge and should read some man pages

bfkwlfkjf 1y ago
No, you're wrong. These are holes in my ssh knowledge, and your comment makes me think you have the same holes.
- liveoneggs 1y ago
  lol you sound like a treat, dude https://git-scm.com/book/ms/v2/Git-on-the-Server-The-Protocols https://git-scm.com/book/ms/v2/Git-on-the-Server-The-Protoco...
  - deleted 1y ago
    [deleted]

skydhash 1y ago

Git is distributed, meaning every copy is isolated and does not depends on other's copy. Adding remotes to an instance is mostly giving a name to an URL(URI?) for the fetch, pull, push operation, which exchange commits. As Commits are immutable and forms a chain, it's easy to know when two nodes diverge and conflict resolution can take place. From the git-fetch(1) manual page: > Git supports ssh, git, http, and https protocols (in addition, ftp and ftps can be used for fetching, but this is inefficient and deprecated; do not use them). You only need access to the other node repo information. There's no server. You can also use a simple path and store the other repo on drive.

bfkwlfkjf 1y ago
> There's no server. There IS a server, it's the ssh daemon. That's the bit I had never thought about until now.
- skydhash 1y ago
  SSH is just a transport to get access to the repo information. The particular implementation does not matter (I think). Its configuration is orthogonal to git.
  - bfkwlfkjf 1y ago
    It's just a transport, and it needs a server.
- ogig 1y ago
  You can think of the ssh://server/folder as a normal /folder. ssh provides auth and encryption to a remote hosted folder but you can forget about it for the purpose of understanding the nature of git model.
- charles_f 1y ago
  The server is git itself, it contains two commands called git-receive-pack and git-upload-pack that it starts through ssh and communicate through stdin/out

Joeboy 1y ago

I mean, you do need an ssh server. Basically ssh can run commands on the remote machine. Most commonly the command would be a shell, but it can also be git commands.

bfkwlfkjf 1y ago
Yup! Someone else just pointed it out. Brilliant, thank you!