I'm not sure if I'm the one to blame for this or not, but the earliest reference to ".gitkeep" I can find online is my 2010 answer on Stack Overflow: https://stackoverflow.com/a/4250082/28422
It's especially funny since my answer is wrong anyway! The other top answer is much better. I did get a lot of early SO brownie points from that one answer though.
What am I missing about this use case? It seems like you should just create `build/.gitignore` with `*` in it and `add -f` it and be done.
I'd use `.gitkeep` (or an empty `.gitignore`) if I needed to commit an otherwise-empty hierarchy. But if I'm going to have a `.gitignore` in there anyway, it's not empty.
> The directory is now “tracked” with a single, standard file that will work even after renames.
Does `.gitkeep` not work after renames? Or `.gitignore`?
The author makes a very common mistake of not reading the very first line of the documentation for .gitignore.
A gitignore file specifies intentionally untracked files that Git should ignore. Files already tracked by Git are not affected; see the NOTES below for details.
You should never be putting "!.gitignore" in .gitignore. Just do `echo "*" > .gitignore; git add -f .gitignore`. Once a file is tracked any changes to it will be tracked without needing to use --force with git add.
The \n won't be interpreted specially by echo unless it gets the -e option.
Personally if I need a build directory I just have it mkdir itself in my Makefile and rm -rf it in `make clean`. With the article's scheme this would cause `git status` noise that a `/build/` line in a root .gitignore wouldn't. I'm not really sure there's a good tradeoff there.
If you have a project template or a tool that otherwise sets up a project but leaves it in the user's hands to create a git repo for it or commit the project into an existing repo, then it would be better for it to create a self-excepting .gitignore file than to have to instruct the user on special git commands to use later.
If you need to do this, I think .gitkeep communicates intent better. You don't need to document it or risk it being removed as thought to be a left over.
For me, I put them in directories that have to be there, because the underlying code doesn't create the directory, and without it, it fails.
Another example is where you want an empty directory mounted in Docker. If the directory is not there it is created with root permissions and then I can't even look into it.
The idea is that instead of adding a nonsense file, you use the native .gitignore functionality.
".gitkeep" is just a human thing; it would work the same if you called it ".blahblah".
So their pitch is that if you want to explicitly keep the existence of the directory as a committed part of the repo, you're better off using the actual .gitignore functionality to check in the .gitignore file but ignore anything else in the directory.
I don't find it amazingly compelling; .gitkeep isn't breaking anything.
I want to like it, but I pretty much always have a "cleanup" script that just deletes the entire directory and touches a .gitkeep file. Obviously an even better pattern is to not have any .gitkeep files, but sometimes they are just handy.
Truly, what purpose does this serve? Defining a hierarchy without using is injecting immediate debt. Just introduce it when stuff goes there! If you really insist then at least put something in the folder. It doesn't take much effort to make the change at least a tiny bit meaningful.
Better yet just do the work. If you want make a commit in a branch that's destined to be squashed or something, sure, but keep it away from the shared history and certainly remove it when it's not needed anymore.
I play around with ComfyUI on my computer to make silly images.
To manually install it, you must clone the repo. Then you have to download models into the right place. Where's the right place? Well, there's an empty directory called models. They go in there.
The simplest answer is that sometimes other existing software that I need to use treats an empty directory (or, hopefully, a directory containing just an irrelevant file like .gitkeep) differently from an absent directory, and I want that software to behave in the first way instead of the second.
A more thorough answer would be: Filesystems can represent empty directories, so a technology that supports versioned filesystems should be able to as well. And if that technology can't quite support fully versioned filesystems -- perhaps because it was never designed with that goal in mind -- but can nevertheless support them well enough to cover a huge number of use cases that people actually have, then massaging it a bit to handle those rough edges still makes sense.
If this is all my fault, I'm sorry.
I'd use `.gitkeep` (or an empty `.gitignore`) if I needed to commit an otherwise-empty hierarchy. But if I'm going to have a `.gitignore` in there anyway, it's not empty.
> The directory is now “tracked” with a single, standard file that will work even after renames.
Does `.gitkeep` not work after renames? Or `.gitignore`?
So I am missing something. :)
Personally if I need a build directory I just have it mkdir itself in my Makefile and rm -rf it in `make clean`. With the article's scheme this would cause `git status` noise that a `/build/` line in a root .gitignore wouldn't. I'm not really sure there's a good tradeoff there.
Another example is where you want an empty directory mounted in Docker. If the directory is not there it is created with root permissions and then I can't even look into it.
That is what I have always used them for....
https://stackoverflow.com/a/4250082/28422
".gitkeep" is just a human thing; it would work the same if you called it ".blahblah".
So their pitch is that if you want to explicitly keep the existence of the directory as a committed part of the repo, you're better off using the actual .gitignore functionality to check in the .gitignore file but ignore anything else in the directory.
I don't find it amazingly compelling; .gitkeep isn't breaking anything.
Better yet just do the work. If you want make a commit in a branch that's destined to be squashed or something, sure, but keep it away from the shared history and certainly remove it when it's not needed anymore.
To manually install it, you must clone the repo. Then you have to download models into the right place. Where's the right place? Well, there's an empty directory called models. They go in there.
IMO that's an effective use of gitkeep.
The simplest answer is that sometimes other existing software that I need to use treats an empty directory (or, hopefully, a directory containing just an irrelevant file like .gitkeep) differently from an absent directory, and I want that software to behave in the first way instead of the second.
A more thorough answer would be: Filesystems can represent empty directories, so a technology that supports versioned filesystems should be able to as well. And if that technology can't quite support fully versioned filesystems -- perhaps because it was never designed with that goal in mind -- but can nevertheless support them well enough to cover a huge number of use cases that people actually have, then massaging it a bit to handle those rough edges still makes sense.